/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:07:10,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:07:10,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:07:10,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:07:10,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:07:10,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:07:10,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:07:10,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:07:10,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:07:10,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:07:10,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:07:10,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:07:10,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:07:10,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:07:10,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:07:10,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:07:10,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:07:10,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:07:10,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:07:10,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:07:10,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:07:10,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:07:10,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:07:10,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:07:10,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:07:10,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:07:10,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:07:10,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:07:10,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:07:10,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:07:10,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:07:10,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:07:10,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:07:10,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:07:10,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:07:10,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:07:10,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:07:10,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:07:10,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:07:10,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:07:10,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:07:10,876 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 [2020-08-22 06:07:10,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:07:10,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:07:10,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:07:10,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:07:10,915 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:07:10,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:07:10,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:07:10,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:07:10,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:07:10,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:07:10,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:07:10,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:07:10,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:07:10,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:07:10,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:07:10,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:07:10,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:07:10,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:07:10,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:07:10,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:07:10,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:07:10,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:07:10,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:07:10,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:07:10,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:07:10,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:07:10,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:07:10,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:07:10,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:07:10,921 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:07:11,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:07:11,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:07:11,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:07:11,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:07:11,249 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:07:11,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-08-22 06:07:11,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74f9eb9f9/b208119563c846f98ac21772bf3c3194/FLAG245388d16 [2020-08-22 06:07:11,809 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:07:11,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-08-22 06:07:11,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74f9eb9f9/b208119563c846f98ac21772bf3c3194/FLAG245388d16 [2020-08-22 06:07:12,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74f9eb9f9/b208119563c846f98ac21772bf3c3194 [2020-08-22 06:07:12,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:07:12,164 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:07:12,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:07:12,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:07:12,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:07:12,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e1b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12, skipping insertion in model container [2020-08-22 06:07:12,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:07:12,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:07:12,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:07:12,637 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:07:12,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:07:12,815 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:07:12,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12 WrapperNode [2020-08-22 06:07:12,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:07:12,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:07:12,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:07:12,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:07:12,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (1/1) ... [2020-08-22 06:07:12,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:07:12,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:07:12,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:07:12,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:07:12,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (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 [2020-08-22 06:07:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:07:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 06:07:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 06:07:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 06:07:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 06:07:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 06:07:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 06:07:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 06:07:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 06:07:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 06:07:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 06:07:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 06:07:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 06:07:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 06:07:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 06:07:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 06:07:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 06:07:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 06:07:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 06:07:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:07:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 06:07:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 06:07:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 06:07:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 06:07:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 06:07:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 06:07:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 06:07:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 06:07:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 06:07:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 06:07:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 06:07:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 06:07:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 06:07:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 06:07:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 06:07:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:07:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:07:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 06:07:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 06:07:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 06:07:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 06:07:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 06:07:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 06:07:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 06:07:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 06:07:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 06:07:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 06:07:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 06:07:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 06:07:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 06:07:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:07:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 06:07:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 06:07:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:07:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 06:07:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 06:07:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:07:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 06:07:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 06:07:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 06:07:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 06:07:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 06:07:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 06:07:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 06:07:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 06:07:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 06:07:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 06:07:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:07:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 06:07:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 06:07:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 06:07:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 06:07:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 06:07:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 06:07:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 06:07:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 06:07:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 06:07:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 06:07:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 06:07:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 06:07:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:07:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 06:07:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:07:14,090 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:07:14,090 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 06:07:14,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:07:14 BoogieIcfgContainer [2020-08-22 06:07:14,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:07:14,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:07:14,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:07:14,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:07:14,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:07:12" (1/3) ... [2020-08-22 06:07:14,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c15f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:07:14, skipping insertion in model container [2020-08-22 06:07:14,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:07:12" (2/3) ... [2020-08-22 06:07:14,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c15f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:07:14, skipping insertion in model container [2020-08-22 06:07:14,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:07:14" (3/3) ... [2020-08-22 06:07:14,110 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-08-22 06:07:14,120 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:07:14,129 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:07:14,143 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:07:14,174 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:07:14,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:07:14,175 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:07:14,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:07:14,175 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:07:14,175 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:07:14,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:07:14,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:07:14,198 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-08-22 06:07:14,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 06:07:14,210 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:07:14,211 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] [2020-08-22 06:07:14,211 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:07:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:07:14,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1378211837, now seen corresponding path program 1 times [2020-08-22 06:07:14,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:07:14,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089570700] [2020-08-22 06:07:14,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:07:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:14,917 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:07:14,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:07:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:14,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:07:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:14,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:07:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:07:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:14,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:07:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:14,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:07:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:14,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:07:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:15,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 06:07:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:15,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:07:15,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089570700] [2020-08-22 06:07:15,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:07:15,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 06:07:15,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854220443] [2020-08-22 06:07:15,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 06:07:15,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:07:15,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 06:07:15,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 06:07:15,071 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-08-22 06:07:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:07:16,395 INFO L93 Difference]: Finished difference Result 355 states and 464 transitions. [2020-08-22 06:07:16,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 06:07:16,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-22 06:07:16,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:07:16,413 INFO L225 Difference]: With dead ends: 355 [2020-08-22 06:07:16,413 INFO L226 Difference]: Without dead ends: 191 [2020-08-22 06:07:16,418 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 [2020-08-22 06:07:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-08-22 06:07:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 155. [2020-08-22 06:07:16,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-08-22 06:07:16,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2020-08-22 06:07:16,515 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 52 [2020-08-22 06:07:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:07:16,516 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2020-08-22 06:07:16,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 06:07:16,516 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2020-08-22 06:07:16,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 06:07:16,521 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:07:16,521 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] [2020-08-22 06:07:16,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:07:16,522 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:07:16,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:07:16,522 INFO L82 PathProgramCache]: Analyzing trace with hash 866991252, now seen corresponding path program 1 times [2020-08-22 06:07:16,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:07:16,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476002157] [2020-08-22 06:07:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:07:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,873 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:07:16,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:07:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:07:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:07:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:07:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:07:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:07:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 06:07:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 06:07:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:16,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:07:16,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476002157] [2020-08-22 06:07:16,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:07:16,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 06:07:16,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834632243] [2020-08-22 06:07:16,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 06:07:16,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:07:16,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 06:07:16,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:07:16,923 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand 4 states. [2020-08-22 06:07:17,298 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:07:18,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:07:18,436 INFO L93 Difference]: Finished difference Result 282 states and 347 transitions. [2020-08-22 06:07:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 06:07:18,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-22 06:07:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:07:18,440 INFO L225 Difference]: With dead ends: 282 [2020-08-22 06:07:18,441 INFO L226 Difference]: Without dead ends: 175 [2020-08-22 06:07:18,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 06:07:18,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-08-22 06:07:18,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 146. [2020-08-22 06:07:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-08-22 06:07:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2020-08-22 06:07:18,508 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 53 [2020-08-22 06:07:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:07:18,509 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2020-08-22 06:07:18,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 06:07:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2020-08-22 06:07:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 06:07:18,511 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:07:18,512 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] [2020-08-22 06:07:18,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:07:18,512 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:07:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:07:18,512 INFO L82 PathProgramCache]: Analyzing trace with hash 295047202, now seen corresponding path program 1 times [2020-08-22 06:07:18,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:07:18,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124890638] [2020-08-22 06:07:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:07:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,828 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:07:18,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:07:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:07:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:07:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:07:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:07:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:07:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:07:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 06:07:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:07:18,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124890638] [2020-08-22 06:07:18,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:07:18,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:07:18,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569498047] [2020-08-22 06:07:18,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:07:18,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:07:18,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:07:18,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:07:18,968 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 8 states. [2020-08-22 06:07:19,308 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:07:19,635 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:07:19,891 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:07:20,127 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:07:20,844 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:07:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:07:22,997 INFO L93 Difference]: Finished difference Result 500 states and 624 transitions. [2020-08-22 06:07:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:07:22,998 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-22 06:07:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:07:23,004 INFO L225 Difference]: With dead ends: 500 [2020-08-22 06:07:23,004 INFO L226 Difference]: Without dead ends: 378 [2020-08-22 06:07:23,005 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 [2020-08-22 06:07:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-08-22 06:07:23,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 316. [2020-08-22 06:07:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-08-22 06:07:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 385 transitions. [2020-08-22 06:07:23,081 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 385 transitions. Word has length 57 [2020-08-22 06:07:23,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:07:23,081 INFO L479 AbstractCegarLoop]: Abstraction has 316 states and 385 transitions. [2020-08-22 06:07:23,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:07:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 385 transitions. [2020-08-22 06:07:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 06:07:23,085 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:07:23,085 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] [2020-08-22 06:07:23,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:07:23,085 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:07:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:07:23,086 INFO L82 PathProgramCache]: Analyzing trace with hash 557384966, now seen corresponding path program 1 times [2020-08-22 06:07:23,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:07:23,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938117424] [2020-08-22 06:07:23,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:07:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,380 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:07:23,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:07:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:07:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:07:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:07:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:07:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:07:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:07:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 06:07:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:07:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:07:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:07:23,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938117424] [2020-08-22 06:07:23,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:07:23,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:07:23,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931924204] [2020-08-22 06:07:23,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:07:23,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:07:23,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:07:23,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:07:23,456 INFO L87 Difference]: Start difference. First operand 316 states and 385 transitions. Second operand 8 states. [2020-08-22 06:07:23,773 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:07:25,148 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:07:25,541 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:07:25,814 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:07:26,104 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:07:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:07:27,023 INFO L93 Difference]: Finished difference Result 976 states and 1285 transitions. [2020-08-22 06:07:27,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 06:07:27,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-22 06:07:27,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:07:27,033 INFO L225 Difference]: With dead ends: 976 [2020-08-22 06:07:27,034 INFO L226 Difference]: Without dead ends: 684 [2020-08-22 06:07:27,035 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 [2020-08-22 06:07:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2020-08-22 06:07:27,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 613. [2020-08-22 06:07:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-08-22 06:07:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 761 transitions. [2020-08-22 06:07:27,177 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 761 transitions. Word has length 63 [2020-08-22 06:07:27,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:07:27,178 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 761 transitions. [2020-08-22 06:07:27,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:07:27,178 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 761 transitions. [2020-08-22 06:07:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 06:07:27,182 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:07:27,182 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] [2020-08-22 06:07:27,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:07:27,183 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:07:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:07:27,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2018489452, now seen corresponding path program 1 times [2020-08-22 06:07:27,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:07:27,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266330186] [2020-08-22 06:07:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:07:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 06:07:27,245 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 06:07:27,246 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 06:07:27,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:07:27,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:07:27 BoogieIcfgContainer [2020-08-22 06:07:27,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 06:07:27,273 INFO L168 Benchmark]: Toolchain (without parser) took 15109.51 ms. Allocated memory was 138.4 MB in the beginning and 496.5 MB in the end (delta: 358.1 MB). Free memory was 99.2 MB in the beginning and 96.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 361.0 MB. Max. memory is 7.1 GB. [2020-08-22 06:07:27,274 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 06:07:27,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.31 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 167.5 MB in the end (delta: -68.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-08-22 06:07:27,276 INFO L168 Benchmark]: Boogie Preprocessor took 83.42 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-22 06:07:27,277 INFO L168 Benchmark]: RCFGBuilder took 1199.34 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 163.2 MB in the beginning and 189.8 MB in the end (delta: -26.6 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-08-22 06:07:27,278 INFO L168 Benchmark]: TraceAbstraction took 13170.16 ms. Allocated memory was 232.3 MB in the beginning and 496.5 MB in the end (delta: 264.2 MB). Free memory was 189.8 MB in the beginning and 96.3 MB in the end (delta: 93.5 MB). Peak memory consumption was 357.7 MB. Max. memory is 7.1 GB. [2020-08-22 06:07:27,282 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 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.31 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 167.5 MB in the end (delta: -68.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.42 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1199.34 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 163.2 MB in the beginning and 189.8 MB in the end (delta: -26.6 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13170.16 ms. Allocated memory was 232.3 MB in the beginning and 496.5 MB in the end (delta: 264.2 MB). Free memory was 189.8 MB in the beginning and 96.3 MB in the end (delta: 93.5 MB). Peak memory consumption was 357.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 586 SDtfs, 983 SDslu, 395 SDs, 0 SdLazy, 2285 SolverSat, 571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=613occurred 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, 198 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s 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...