/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:21:49,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:21:49,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:21:49,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 23:21:49,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 23:21:49,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 23:21:49,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 23:21:49,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 23:21:49,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 23:21:49,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 23:21:49,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 23:21:49,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 23:21:49,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:21:49,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:21:49,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:21:49,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:21:49,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:21:49,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:21:49,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:21:49,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:21:49,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:21:49,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:21:49,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:21:49,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:21:49,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 23:21:49,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 23:21:49,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 23:21:49,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 23:21:49,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 23:21:49,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 23:21:49,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 23:21:49,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 23:21:49,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 23:21:49,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 23:21:49,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 23:21:49,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 23:21:49,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 23:21:49,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 23:21:49,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:21:49,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:21:49,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:21:49,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 23:21:49,829 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:21:49,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:21:49,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:21:49,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:21:49,832 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:21:49,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:21:49,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:21:49,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:21:49,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:21:49,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:21:49,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:21:49,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:21:49,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:21:49,835 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:21:49,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:21:49,836 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:21:49,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:21:49,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:21:49,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:21:49,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:21:49,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:21:49,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:21:49,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:21:49,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:21:49,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:21:49,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:21:49,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:21:49,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:21:49,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:21:49,839 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:21:50,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:21:50,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:21:50,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:21:50,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:21:50,141 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:21:50,142 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-18 23:21:50,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3447f0b23/407850fb742b4f91b05552c1a4283c37/FLAG52bb84df7 [2020-08-18 23:21:50,763 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:21:50,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-18 23:21:50,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3447f0b23/407850fb742b4f91b05552c1a4283c37/FLAG52bb84df7 [2020-08-18 23:21:51,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3447f0b23/407850fb742b4f91b05552c1a4283c37 [2020-08-18 23:21:51,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:21:51,019 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:21:51,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:21:51,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:21:51,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:21:51,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723eb1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51, skipping insertion in model container [2020-08-18 23:21:51,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:21:51,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:21:51,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:21:51,523 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:21:51,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:21:51,661 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:21:51,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51 WrapperNode [2020-08-18 23:21:51,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:21:51,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:21:51,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:21:51,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:21:51,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... [2020-08-18 23:21:51,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:21:51,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:21:51,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:21:51,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:21:51,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 23:21:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:21:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:21:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 23:21:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 23:21:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 23:21:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 23:21:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 23:21:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 23:21:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 23:21:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 23:21:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 23:21:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 23:21:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 23:21:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 23:21:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 23:21:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 23:21:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 23:21:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 23:21:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 23:21:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:21:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 23:21:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 23:21:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 23:21:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 23:21:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 23:21:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 23:21:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 23:21:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 23:21:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 23:21:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 23:21:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 23:21:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 23:21:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 23:21:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 23:21:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 23:21:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 23:21:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 23:21:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 23:21:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:21:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:21:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 23:21:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 23:21:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 23:21:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 23:21:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 23:21:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 23:21:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 23:21:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 23:21:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 23:21:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 23:21:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 23:21:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 23:21:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 23:21:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 23:21:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 23:21:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 23:21:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 23:21:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 23:21:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 23:21:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 23:21:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 23:21:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 23:21:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 23:21:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 23:21:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 23:21:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 23:21:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 23:21:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 23:21:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 23:21:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:21:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 23:21:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 23:21:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 23:21:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 23:21:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 23:21:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 23:21:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 23:21:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 23:21:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 23:21:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 23:21:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 23:21:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 23:21:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 23:21:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 23:21:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 23:21:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 23:21:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 23:21:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:21:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 23:21:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:21:52,990 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:21:52,991 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 23:21:52,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:21:52 BoogieIcfgContainer [2020-08-18 23:21:52,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:21:52,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:21:52,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:21:53,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:21:53,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:21:51" (1/3) ... [2020-08-18 23:21:53,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3c3836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:21:53, skipping insertion in model container [2020-08-18 23:21:53,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:21:51" (2/3) ... [2020-08-18 23:21:53,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3c3836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:21:53, skipping insertion in model container [2020-08-18 23:21:53,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:21:52" (3/3) ... [2020-08-18 23:21:53,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-08-18 23:21:53,016 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:21:53,024 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:21:53,038 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:21:53,065 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:21:53,065 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:21:53,065 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:21:53,065 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:21:53,066 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:21:53,066 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:21:53,066 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:21:53,066 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:21:53,089 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-08-18 23:21:53,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 23:21:53,100 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:21:53,101 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] [2020-08-18 23:21:53,101 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:21:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:21:53,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-08-18 23:21:53,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:21:53,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852857996] [2020-08-18 23:21:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:21:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,807 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:21:53,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:21:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:21:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:21:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:21:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:21:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 23:21:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 23:21:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 23:21:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:21:53,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852857996] [2020-08-18 23:21:53,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:21:53,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 23:21:53,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973753755] [2020-08-18 23:21:53,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 23:21:53,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:21:53,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 23:21:53,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 23:21:53,954 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-08-18 23:21:55,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:21:55,006 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2020-08-18 23:21:55,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 23:21:55,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 23:21:55,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:21:55,024 INFO L225 Difference]: With dead ends: 281 [2020-08-18 23:21:55,024 INFO L226 Difference]: Without dead ends: 152 [2020-08-18 23:21:55,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 23:21:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-08-18 23:21:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-08-18 23:21:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-08-18 23:21:55,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-08-18 23:21:55,132 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-08-18 23:21:55,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:21:55,132 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-08-18 23:21:55,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 23:21:55,133 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-08-18 23:21:55,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 23:21:55,136 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:21:55,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:21:55,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:21:55,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:21:55,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:21:55,138 INFO L82 PathProgramCache]: Analyzing trace with hash -548767927, now seen corresponding path program 1 times [2020-08-18 23:21:55,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:21:55,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148491157] [2020-08-18 23:21:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:21:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,504 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:21:55,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:21:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:21:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:21:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:21:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:21:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:21:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 23:21:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 23:21:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:55,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:21:55,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148491157] [2020-08-18 23:21:55,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:21:55,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 23:21:55,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930376300] [2020-08-18 23:21:55,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 23:21:55,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:21:55,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 23:21:55,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 23:21:55,556 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-08-18 23:21:56,037 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 23:21:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:21:56,750 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-08-18 23:21:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 23:21:56,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 23:21:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:21:56,755 INFO L225 Difference]: With dead ends: 205 [2020-08-18 23:21:56,755 INFO L226 Difference]: Without dead ends: 136 [2020-08-18 23:21:56,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 23:21:56,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-18 23:21:56,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-08-18 23:21:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-18 23:21:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-08-18 23:21:56,792 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-08-18 23:21:56,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:21:56,792 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-08-18 23:21:56,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 23:21:56,793 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-08-18 23:21:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-18 23:21:56,795 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:21:56,795 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] [2020-08-18 23:21:56,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 23:21:56,796 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:21:56,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:21:56,796 INFO L82 PathProgramCache]: Analyzing trace with hash 196992317, now seen corresponding path program 1 times [2020-08-18 23:21:56,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:21:56,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834282944] [2020-08-18 23:21:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:21:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,174 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:21:57,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:21:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:21:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:21:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:21:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:21:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:21:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 23:21:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 23:21:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:21:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:21:57,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834282944] [2020-08-18 23:21:57,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:21:57,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 23:21:57,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728580049] [2020-08-18 23:21:57,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:21:57,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:21:57,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:21:57,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:21:57,295 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 8 states. [2020-08-18 23:21:57,674 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:21:58,007 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:21:58,260 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:21:58,491 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:21:59,227 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 23:22:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:22:00,750 INFO L93 Difference]: Finished difference Result 387 states and 477 transitions. [2020-08-18 23:22:00,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 23:22:00,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-18 23:22:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:22:00,755 INFO L225 Difference]: With dead ends: 387 [2020-08-18 23:22:00,756 INFO L226 Difference]: Without dead ends: 300 [2020-08-18 23:22:00,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-18 23:22:00,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-08-18 23:22:00,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 234. [2020-08-18 23:22:00,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-08-18 23:22:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions. [2020-08-18 23:22:00,832 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 57 [2020-08-18 23:22:00,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:22:00,833 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 279 transitions. [2020-08-18 23:22:00,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:22:00,833 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions. [2020-08-18 23:22:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 23:22:00,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:22:00,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:22:00,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 23:22:00,837 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:22:00,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:22:00,837 INFO L82 PathProgramCache]: Analyzing trace with hash 925372224, now seen corresponding path program 1 times [2020-08-18 23:22:00,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:22:00,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714957951] [2020-08-18 23:22:00,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:22:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,154 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:22:01,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:22:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:22:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:22:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:22:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:22:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:22:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 23:22:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 23:22:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 23:22:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:22:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:22:01,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714957951] [2020-08-18 23:22:01,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:22:01,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 23:22:01,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40073423] [2020-08-18 23:22:01,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:22:01,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:22:01,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:22:01,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:22:01,265 INFO L87 Difference]: Start difference. First operand 234 states and 279 transitions. Second operand 8 states. [2020-08-18 23:22:01,591 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:22:02,808 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:22:03,113 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:22:03,412 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:22:03,640 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:22:04,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:22:04,265 INFO L93 Difference]: Finished difference Result 714 states and 935 transitions. [2020-08-18 23:22:04,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 23:22:04,266 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 23:22:04,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:22:04,272 INFO L225 Difference]: With dead ends: 714 [2020-08-18 23:22:04,272 INFO L226 Difference]: Without dead ends: 504 [2020-08-18 23:22:04,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-18 23:22:04,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-08-18 23:22:04,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 441. [2020-08-18 23:22:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-18 23:22:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 537 transitions. [2020-08-18 23:22:04,388 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 537 transitions. Word has length 63 [2020-08-18 23:22:04,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:22:04,389 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 537 transitions. [2020-08-18 23:22:04,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:22:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 537 transitions. [2020-08-18 23:22:04,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 23:22:04,395 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:22:04,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:22:04,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 23:22:04,396 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:22:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:22:04,396 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-08-18 23:22:04,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:22:04,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157220928] [2020-08-18 23:22:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:22:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 23:22:04,468 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 23:22:04,469 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 23:22:04,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 23:22:04,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 11:22:04 BoogieIcfgContainer [2020-08-18 23:22:04,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 23:22:04,497 INFO L168 Benchmark]: Toolchain (without parser) took 13477.80 ms. Allocated memory was 148.9 MB in the beginning and 438.3 MB in the end (delta: 289.4 MB). Free memory was 104.1 MB in the beginning and 94.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 298.9 MB. Max. memory is 7.1 GB. [2020-08-18 23:22:04,498 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 23:22:04,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.56 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.7 MB in the beginning and 172.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-08-18 23:22:04,500 INFO L168 Benchmark]: Boogie Preprocessor took 88.61 ms. Allocated memory is still 205.5 MB. Free memory was 172.8 MB in the beginning and 168.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-08-18 23:22:04,501 INFO L168 Benchmark]: RCFGBuilder took 1244.09 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 168.8 MB in the beginning and 191.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2020-08-18 23:22:04,502 INFO L168 Benchmark]: TraceAbstraction took 11498.09 ms. Allocated memory was 233.8 MB in the beginning and 438.3 MB in the end (delta: 204.5 MB). Free memory was 191.2 MB in the beginning and 94.6 MB in the end (delta: 96.6 MB). Peak memory consumption was 301.1 MB. Max. memory is 7.1 GB. [2020-08-18 23:22:04,506 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 642.56 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.7 MB in the beginning and 172.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.61 ms. Allocated memory is still 205.5 MB. Free memory was 172.8 MB in the beginning and 168.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.09 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 168.8 MB in the beginning and 191.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11498.09 ms. Allocated memory was 233.8 MB in the beginning and 438.3 MB in the end (delta: 204.5 MB). Free memory was 191.2 MB in the beginning and 94.6 MB in the end (delta: 96.6 MB). Peak memory consumption was 301.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 636 SDslu, 358 SDs, 0 SdLazy, 1778 SolverSat, 351 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 61524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...