/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_spec2_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:41:18,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:41:18,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:41:18,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:41:18,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:41:18,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:41:18,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:41:18,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:41:18,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:41:18,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:41:18,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:41:18,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:41:18,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:41:18,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:41:18,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:41:18,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:41:18,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:41:18,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:41:18,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:41:18,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:41:18,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:41:18,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:41:18,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:41:18,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:41:18,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:41:18,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:41:18,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:41:18,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:41:18,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:41:18,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:41:18,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:41:18,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:41:18,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:41:18,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:41:18,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:41:18,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:41:18,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:41:18,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:41:18,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:41:18,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:41:18,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:41:18,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 10:41:18,417 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:41:18,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:41:18,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:41:18,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:41:18,422 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:41:18,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:41:18,422 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:41:18,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:41:18,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:41:18,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:41:18,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:41:18,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:41:18,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:41:18,424 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:41:18,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:41:18,425 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:41:18,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:41:18,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:41:18,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:41:18,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:41:18,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:41:18,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:41:18,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:41:18,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:41:18,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:41:18,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:41:18,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:18,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:41:18,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:41:18,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:41:18,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:41:18,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:41:18,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:41:18,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:41:18,773 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:41:18,774 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-07-20 10:41:18,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1971789/6335cb7e9b63451d80173ccb0d66300d/FLAGb5a183465 [2020-07-20 10:41:19,344 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:41:19,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-07-20 10:41:19,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1971789/6335cb7e9b63451d80173ccb0d66300d/FLAGb5a183465 [2020-07-20 10:41:19,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1971789/6335cb7e9b63451d80173ccb0d66300d [2020-07-20 10:41:19,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:41:19,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:41:19,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:41:19,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:41:19,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:41:19,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:41:19" (1/1) ... [2020-07-20 10:41:19,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144ee2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:19, skipping insertion in model container [2020-07-20 10:41:19,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:41:19" (1/1) ... [2020-07-20 10:41:19,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:41:19,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:41:20,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:41:20,243 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:41:20,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:41:20,380 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:41:20,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20 WrapperNode [2020-07-20 10:41:20,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:41:20,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:41:20,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:41:20,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:41:20,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... [2020-07-20 10:41:20,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... [2020-07-20 10:41:20,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... [2020-07-20 10:41:20,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... [2020-07-20 10:41:20,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... [2020-07-20 10:41:20,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... [2020-07-20 10:41:20,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... [2020-07-20 10:41:20,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:41:20,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:41:20,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:41:20,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:41:20,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:41:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:41:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:41:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:41:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:41:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:41:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:41:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:41:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:41:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:41:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 10:41:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:41:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:41:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:41:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:41:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:41:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:41:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:41:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:41:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:41:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:41:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:41:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:41:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:41:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:41:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:41:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:41:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 10:41:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:41:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:41:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:41:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:41:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:41:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:41:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 10:41:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 10:41:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 10:41:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:41:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:41:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 10:41:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 10:41:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:41:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:41:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:41:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:41:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:41:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:41:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:41:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:41:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:41:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 10:41:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:41:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:41:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:41:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:41:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:41:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:41:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:41:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:41:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:41:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:41:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:41:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:41:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:41:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:41:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:41:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:41:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:41:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:41:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:41:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:41:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:41:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:41:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:41:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:41:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:41:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:41:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 10:41:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:41:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:41:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:41:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:41:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:41:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:41:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 10:41:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 10:41:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 10:41:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:41:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 10:41:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 10:41:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:41:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:41:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:41:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:41:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:41:21,847 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:41:21,847 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:41:21,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:41:21 BoogieIcfgContainer [2020-07-20 10:41:21,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:41:21,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:41:21,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:41:21,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:41:21,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:41:19" (1/3) ... [2020-07-20 10:41:21,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f0ddef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:41:21, skipping insertion in model container [2020-07-20 10:41:21,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:20" (2/3) ... [2020-07-20 10:41:21,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f0ddef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:41:21, skipping insertion in model container [2020-07-20 10:41:21,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:41:21" (3/3) ... [2020-07-20 10:41:21,863 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2020-07-20 10:41:21,874 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:41:21,884 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:41:21,900 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:41:21,928 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:41:21,928 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:41:21,929 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:41:21,929 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:41:21,929 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:41:21,929 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:41:21,930 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:41:21,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:41:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-20 10:41:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 10:41:21,974 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:21,976 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] [2020-07-20 10:41:21,976 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:21,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash 171708589, now seen corresponding path program 1 times [2020-07-20 10:41:21,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:21,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786787558] [2020-07-20 10:41:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:22,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:41:22,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:41:22,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:22,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786787558] [2020-07-20 10:41:22,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:22,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:41:22,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962480474] [2020-07-20 10:41:22,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:41:22,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:22,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:41:22,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:41:22,336 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2020-07-20 10:41:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:22,378 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2020-07-20 10:41:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:41:22,380 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-20 10:41:22,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:22,394 INFO L225 Difference]: With dead ends: 242 [2020-07-20 10:41:22,394 INFO L226 Difference]: Without dead ends: 123 [2020-07-20 10:41:22,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:41:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-20 10:41:22,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-20 10:41:22,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-20 10:41:22,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2020-07-20 10:41:22,482 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 51 [2020-07-20 10:41:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:22,483 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2020-07-20 10:41:22,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:41:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2020-07-20 10:41:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:41:22,488 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:22,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:22,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:22,703 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:22,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:22,703 INFO L82 PathProgramCache]: Analyzing trace with hash -70243324, now seen corresponding path program 1 times [2020-07-20 10:41:22,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:22,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430050939] [2020-07-20 10:41:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:22,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:41:22,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:41:23,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:23,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430050939] [2020-07-20 10:41:23,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:23,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:41:23,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112517450] [2020-07-20 10:41:23,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:41:23,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:23,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:41:23,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:23,009 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 3 states. [2020-07-20 10:41:23,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:23,029 INFO L93 Difference]: Finished difference Result 178 states and 207 transitions. [2020-07-20 10:41:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:41:23,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 10:41:23,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:23,033 INFO L225 Difference]: With dead ends: 178 [2020-07-20 10:41:23,033 INFO L226 Difference]: Without dead ends: 114 [2020-07-20 10:41:23,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:23,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-20 10:41:23,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-07-20 10:41:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-20 10:41:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2020-07-20 10:41:23,048 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 52 [2020-07-20 10:41:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:23,049 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2020-07-20 10:41:23,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:41:23,049 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2020-07-20 10:41:23,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 10:41:23,051 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:23,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:23,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:23,267 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:23,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1406294977, now seen corresponding path program 1 times [2020-07-20 10:41:23,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:23,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131917732] [2020-07-20 10:41:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:23,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:41:23,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:41:23,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:23,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131917732] [2020-07-20 10:41:23,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:23,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:41:23,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140304899] [2020-07-20 10:41:23,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:41:23,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:23,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:41:23,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:23,482 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand 3 states. [2020-07-20 10:41:23,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:23,516 INFO L93 Difference]: Finished difference Result 282 states and 336 transitions. [2020-07-20 10:41:23,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:41:23,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-20 10:41:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:23,520 INFO L225 Difference]: With dead ends: 282 [2020-07-20 10:41:23,520 INFO L226 Difference]: Without dead ends: 196 [2020-07-20 10:41:23,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:23,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-20 10:41:23,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 184. [2020-07-20 10:41:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-20 10:41:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 217 transitions. [2020-07-20 10:41:23,556 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 217 transitions. Word has length 57 [2020-07-20 10:41:23,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:23,557 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 217 transitions. [2020-07-20 10:41:23,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:41:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 217 transitions. [2020-07-20 10:41:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 10:41:23,564 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:23,564 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] [2020-07-20 10:41:23,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:23,779 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:23,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1471569046, now seen corresponding path program 1 times [2020-07-20 10:41:23,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:23,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823717461] [2020-07-20 10:41:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:23,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 10:41:24,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:41:24,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:24,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823717461] [2020-07-20 10:41:24,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:24,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:41:24,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323346392] [2020-07-20 10:41:24,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:41:24,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:24,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:41:24,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:24,036 INFO L87 Difference]: Start difference. First operand 184 states and 217 transitions. Second operand 3 states. [2020-07-20 10:41:24,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:24,092 INFO L93 Difference]: Finished difference Result 340 states and 414 transitions. [2020-07-20 10:41:24,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:41:24,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-07-20 10:41:24,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:24,103 INFO L225 Difference]: With dead ends: 340 [2020-07-20 10:41:24,104 INFO L226 Difference]: Without dead ends: 337 [2020-07-20 10:41:24,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-20 10:41:24,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2020-07-20 10:41:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-20 10:41:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 410 transitions. [2020-07-20 10:41:24,159 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 410 transitions. Word has length 62 [2020-07-20 10:41:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:24,160 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 410 transitions. [2020-07-20 10:41:24,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:41:24,160 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 410 transitions. [2020-07-20 10:41:24,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 10:41:24,165 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:24,166 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:24,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:24,380 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:24,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:24,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1625481668, now seen corresponding path program 1 times [2020-07-20 10:41:24,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:24,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920099151] [2020-07-20 10:41:24,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:24,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 10:41:24,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 10:41:24,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:24,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920099151] [2020-07-20 10:41:24,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:24,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:41:24,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882022468] [2020-07-20 10:41:24,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:41:24,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:24,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:41:24,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:41:24,628 INFO L87 Difference]: Start difference. First operand 337 states and 410 transitions. Second operand 6 states. [2020-07-20 10:41:24,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:24,864 INFO L93 Difference]: Finished difference Result 796 states and 1017 transitions. [2020-07-20 10:41:24,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 10:41:24,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-07-20 10:41:24,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:24,870 INFO L225 Difference]: With dead ends: 796 [2020-07-20 10:41:24,870 INFO L226 Difference]: Without dead ends: 487 [2020-07-20 10:41:24,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:41:24,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2020-07-20 10:41:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 451. [2020-07-20 10:41:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-07-20 10:41:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 556 transitions. [2020-07-20 10:41:24,911 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 556 transitions. Word has length 93 [2020-07-20 10:41:24,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:24,912 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 556 transitions. [2020-07-20 10:41:24,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:41:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 556 transitions. [2020-07-20 10:41:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 10:41:24,916 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:24,916 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:25,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:25,131 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:25,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:25,131 INFO L82 PathProgramCache]: Analyzing trace with hash -371881838, now seen corresponding path program 1 times [2020-07-20 10:41:25,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:25,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339354054] [2020-07-20 10:41:25,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:25,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 10:41:25,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 10:41:25,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:25,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339354054] [2020-07-20 10:41:25,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:25,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:41:25,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743230794] [2020-07-20 10:41:25,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:41:25,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:25,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:41:25,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:25,347 INFO L87 Difference]: Start difference. First operand 451 states and 556 transitions. Second operand 3 states. [2020-07-20 10:41:25,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:25,466 INFO L93 Difference]: Finished difference Result 725 states and 898 transitions. [2020-07-20 10:41:25,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:41:25,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 10:41:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:25,472 INFO L225 Difference]: With dead ends: 725 [2020-07-20 10:41:25,472 INFO L226 Difference]: Without dead ends: 302 [2020-07-20 10:41:25,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:25,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-07-20 10:41:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 294. [2020-07-20 10:41:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 10:41:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 351 transitions. [2020-07-20 10:41:25,507 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 351 transitions. Word has length 120 [2020-07-20 10:41:25,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:25,508 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 351 transitions. [2020-07-20 10:41:25,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:41:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 351 transitions. [2020-07-20 10:41:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 10:41:25,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:25,514 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:25,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:25,728 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1708616894, now seen corresponding path program 1 times [2020-07-20 10:41:25,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:25,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79790557] [2020-07-20 10:41:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:25,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 10:41:25,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:26,038 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:41:26,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:26,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79790557] [2020-07-20 10:41:26,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:26,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:41:26,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354175410] [2020-07-20 10:41:26,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:41:26,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:26,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:41:26,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:41:26,042 INFO L87 Difference]: Start difference. First operand 294 states and 351 transitions. Second operand 6 states. [2020-07-20 10:41:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:26,901 INFO L93 Difference]: Finished difference Result 1060 states and 1436 transitions. [2020-07-20 10:41:26,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 10:41:26,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-07-20 10:41:26,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:26,908 INFO L225 Difference]: With dead ends: 1060 [2020-07-20 10:41:26,909 INFO L226 Difference]: Without dead ends: 794 [2020-07-20 10:41:26,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 10:41:26,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-07-20 10:41:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 734. [2020-07-20 10:41:26,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-07-20 10:41:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 934 transitions. [2020-07-20 10:41:26,979 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 934 transitions. Word has length 123 [2020-07-20 10:41:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:26,979 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 934 transitions. [2020-07-20 10:41:26,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:41:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 934 transitions. [2020-07-20 10:41:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 10:41:26,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:26,983 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:27,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:27,200 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:27,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:27,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1477535203, now seen corresponding path program 1 times [2020-07-20 10:41:27,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:27,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713621739] [2020-07-20 10:41:27,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:27,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 10:41:27,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 10:41:27,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 10:41:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 10:41:27,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713621739] [2020-07-20 10:41:27,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 10:41:27,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2020-07-20 10:41:27,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923054646] [2020-07-20 10:41:27,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:41:27,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:27,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:41:27,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 10:41:27,632 INFO L87 Difference]: Start difference. First operand 734 states and 934 transitions. Second operand 6 states. [2020-07-20 10:41:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:27,881 INFO L93 Difference]: Finished difference Result 2041 states and 2694 transitions. [2020-07-20 10:41:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 10:41:27,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-07-20 10:41:27,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:27,891 INFO L225 Difference]: With dead ends: 2041 [2020-07-20 10:41:27,891 INFO L226 Difference]: Without dead ends: 1335 [2020-07-20 10:41:27,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-20 10:41:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2020-07-20 10:41:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1184. [2020-07-20 10:41:27,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2020-07-20 10:41:28,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1492 transitions. [2020-07-20 10:41:28,007 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1492 transitions. Word has length 123 [2020-07-20 10:41:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:28,008 INFO L479 AbstractCegarLoop]: Abstraction has 1184 states and 1492 transitions. [2020-07-20 10:41:28,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:41:28,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1492 transitions. [2020-07-20 10:41:28,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-20 10:41:28,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:28,017 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:28,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:28,230 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash -709717971, now seen corresponding path program 1 times [2020-07-20 10:41:28,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:28,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105615433] [2020-07-20 10:41:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:28,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 10:41:28,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:41:28,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:28,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105615433] [2020-07-20 10:41:28,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:28,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 10:41:28,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182658989] [2020-07-20 10:41:28,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 10:41:28,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:28,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 10:41:28,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:41:28,486 INFO L87 Difference]: Start difference. First operand 1184 states and 1492 transitions. Second operand 8 states. [2020-07-20 10:41:29,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:29,855 INFO L93 Difference]: Finished difference Result 3602 states and 4927 transitions. [2020-07-20 10:41:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 10:41:29,855 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-07-20 10:41:29,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:29,873 INFO L225 Difference]: With dead ends: 3602 [2020-07-20 10:41:29,873 INFO L226 Difference]: Without dead ends: 2446 [2020-07-20 10:41:29,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-07-20 10:41:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2020-07-20 10:41:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 1946. [2020-07-20 10:41:30,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2020-07-20 10:41:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2523 transitions. [2020-07-20 10:41:30,026 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2523 transitions. Word has length 131 [2020-07-20 10:41:30,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:30,027 INFO L479 AbstractCegarLoop]: Abstraction has 1946 states and 2523 transitions. [2020-07-20 10:41:30,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 10:41:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2523 transitions. [2020-07-20 10:41:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 10:41:30,033 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:30,033 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:30,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:30,248 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:30,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1224141689, now seen corresponding path program 1 times [2020-07-20 10:41:30,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:30,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836884095] [2020-07-20 10:41:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:30,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 10:41:30,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 10:41:30,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:30,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836884095] [2020-07-20 10:41:30,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:30,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:41:30,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575092017] [2020-07-20 10:41:30,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:41:30,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:30,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:41:30,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:41:30,512 INFO L87 Difference]: Start difference. First operand 1946 states and 2523 transitions. Second operand 6 states. [2020-07-20 10:41:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:30,627 INFO L93 Difference]: Finished difference Result 3909 states and 5219 transitions. [2020-07-20 10:41:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:41:30,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2020-07-20 10:41:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:30,641 INFO L225 Difference]: With dead ends: 3909 [2020-07-20 10:41:30,642 INFO L226 Difference]: Without dead ends: 1991 [2020-07-20 10:41:30,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 10:41:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-07-20 10:41:30,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2020-07-20 10:41:30,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2020-07-20 10:41:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2580 transitions. [2020-07-20 10:41:30,761 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2580 transitions. Word has length 127 [2020-07-20 10:41:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:30,762 INFO L479 AbstractCegarLoop]: Abstraction has 1991 states and 2580 transitions. [2020-07-20 10:41:30,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:41:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2580 transitions. [2020-07-20 10:41:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 10:41:30,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:30,767 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:30,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:30,983 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:30,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:30,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1147240891, now seen corresponding path program 1 times [2020-07-20 10:41:30,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:30,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915263038] [2020-07-20 10:41:30,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:31,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 10:41:31,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 10:41:31,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:31,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915263038] [2020-07-20 10:41:31,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:31,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 10:41:31,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337165397] [2020-07-20 10:41:31,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 10:41:31,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:31,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 10:41:31,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 10:41:31,239 INFO L87 Difference]: Start difference. First operand 1991 states and 2580 transitions. Second operand 5 states. [2020-07-20 10:41:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:31,337 INFO L93 Difference]: Finished difference Result 3722 states and 4917 transitions. [2020-07-20 10:41:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 10:41:31,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-07-20 10:41:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:31,350 INFO L225 Difference]: With dead ends: 3722 [2020-07-20 10:41:31,350 INFO L226 Difference]: Without dead ends: 1759 [2020-07-20 10:41:31,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 10:41:31,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2020-07-20 10:41:31,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1759. [2020-07-20 10:41:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1759 states. [2020-07-20 10:41:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2226 transitions. [2020-07-20 10:41:31,466 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2226 transitions. Word has length 127 [2020-07-20 10:41:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:31,467 INFO L479 AbstractCegarLoop]: Abstraction has 1759 states and 2226 transitions. [2020-07-20 10:41:31,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 10:41:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2226 transitions. [2020-07-20 10:41:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-20 10:41:31,471 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:31,471 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:31,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:31,685 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:31,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:31,685 INFO L82 PathProgramCache]: Analyzing trace with hash 475998026, now seen corresponding path program 1 times [2020-07-20 10:41:31,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:31,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434903307] [2020-07-20 10:41:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:41:32,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:41:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:41:32,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:41:32,398 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:41:32,398 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:41:32,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:32,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:41:32 BoogieIcfgContainer [2020-07-20 10:41:32,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:41:32,806 INFO L168 Benchmark]: Toolchain (without parser) took 13100.79 ms. Allocated memory was 141.6 MB in the beginning and 380.1 MB in the end (delta: 238.6 MB). Free memory was 104.9 MB in the beginning and 125.7 MB in the end (delta: -20.8 MB). Peak memory consumption was 217.7 MB. Max. memory is 7.1 GB. [2020-07-20 10:41:32,806 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 10:41:32,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.85 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 104.7 MB in the beginning and 174.4 MB in the end (delta: -69.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-07-20 10:41:32,808 INFO L168 Benchmark]: Boogie Preprocessor took 130.94 ms. Allocated memory is still 205.0 MB. Free memory was 174.4 MB in the beginning and 170.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-20 10:41:32,808 INFO L168 Benchmark]: RCFGBuilder took 1341.01 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 170.6 MB in the beginning and 191.0 MB in the end (delta: -20.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-07-20 10:41:32,809 INFO L168 Benchmark]: TraceAbstraction took 10948.46 ms. Allocated memory was 233.3 MB in the beginning and 380.1 MB in the end (delta: 146.8 MB). Free memory was 189.7 MB in the beginning and 125.7 MB in the end (delta: 64.0 MB). Peak memory consumption was 210.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:41:32,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.85 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 104.7 MB in the beginning and 174.4 MB in the end (delta: -69.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.94 ms. Allocated memory is still 205.0 MB. Free memory was 174.4 MB in the beginning and 170.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1341.01 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 170.6 MB in the beginning and 191.0 MB in the end (delta: -20.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10948.46 ms. Allocated memory was 233.3 MB in the beginning and 380.1 MB in the end (delta: 146.8 MB). Free memory was 189.7 MB in the beginning and 125.7 MB in the end (delta: 64.0 MB). Peak memory consumption was 210.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 900]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int cleanupTimeShifts = 4; [L651] int pumpRunning = 0; [L652] int systemActive = 1; [L905] int methAndRunningLastTime ; VAL [\old(cleanupTimeShifts)=35, \old(head)=31, \old(head)=83, \old(methAndRunningLastTime)=52, \old(methaneLevelCritical)=93, \old(pumpRunning)=70, \old(systemActive)=36, \old(waterLevel)=85, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L623] int retValue_acc ; [L624] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L628] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L629] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L630] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L630] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L630] tmp = valid_product() [L632] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L634] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L635] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L910] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L837] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L839] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L845] tmp = __VERIFIER_nondet_int() [L847] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L849] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L849] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L859] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L859] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___2)) [L873] tmp___1 = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L884] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L659] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L688] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L693] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L785] int retValue_acc ; [L786] int tmp ; [L787] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L791] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L791] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L791] tmp = isHighWaterSensorDry() [L793] COND FALSE !(\read(tmp)) [L796] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L798] retValue_acc = tmp___0 [L799] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L693] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L697] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L716] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L697] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L668] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L674] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L915] int tmp ; [L916] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L920] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L920] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L924] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L924] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L927] COND FALSE !(\read(methAndRunningLastTime)) [L932] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L674] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L884] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L837] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L839] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___2)) [L873] tmp___1 = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L884] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L659] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L661] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L661] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L666] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L668] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L706] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L668] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L674] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L915] int tmp ; [L916] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L920] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L920] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L924] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L924] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L927] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L929] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.6s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1703 SDtfs, 1286 SDslu, 2585 SDs, 0 SdLazy, 1541 SolverSat, 510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1196 GetRequests, 1154 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1991occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 767 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1197 NumberOfCodeBlocks, 1197 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1177 ConstructedInterpolants, 0 QuantifiedInterpolants, 226613 SizeOfPredicates, 27 NumberOfNonLiveVariables, 8774 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 244/246 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...