/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=0.8 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 01:47:09,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:47:09,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:47:09,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:47:09,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:47:09,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:47:09,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:47:09,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:47:09,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:47:09,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:47:09,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:47:09,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:47:09,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:47:09,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:47:09,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:47:09,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:47:09,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:47:09,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:47:09,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:47:09,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:47:09,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:47:09,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:47:09,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:47:09,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:47:09,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:47:09,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:47:09,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:47:09,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:47:09,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:47:09,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:47:09,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:47:09,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:47:09,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:47:09,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:47:09,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:47:09,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:47:09,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:47:09,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:47:09,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:47:09,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:47:09,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:47:09,913 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 [2020-08-19 01:47:09,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:47:09,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:47:09,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:47:09,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:47:09,951 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:47:09,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:47:09,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:47:09,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:47:09,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:47:09,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:47:09,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:47:09,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:47:09,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:47:09,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:47:09,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:47:09,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:47:09,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:47:09,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:47:09,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:47:09,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:47:09,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:47:09,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:47:09,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:47:09,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:47:09,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:47:09,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:47:09,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:47:09,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:47:09,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:47:09,957 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=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; [2020-08-19 01:47:10,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:47:10,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:47:10,277 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:47:10,278 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:47:10,279 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:47:10,279 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-08-19 01:47:10,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95413da2e/caf95f28e4e64718a669288f8c21516f/FLAGc99c44e13 [2020-08-19 01:47:10,854 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:47:10,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-08-19 01:47:10,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95413da2e/caf95f28e4e64718a669288f8c21516f/FLAGc99c44e13 [2020-08-19 01:47:11,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95413da2e/caf95f28e4e64718a669288f8c21516f [2020-08-19 01:47:11,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:47:11,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:47:11,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:47:11,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:47:11,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:47:11,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11, skipping insertion in model container [2020-08-19 01:47:11,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:47:11,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:47:11,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:47:11,565 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:47:11,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:47:11,770 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:47:11,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11 WrapperNode [2020-08-19 01:47:11,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:47:11,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:47:11,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:47:11,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:47:11,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (1/1) ... [2020-08-19 01:47:11,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:47:11,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:47:11,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:47:11,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:47:11,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (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 [2020-08-19 01:47:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:47:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:47:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 01:47:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 01:47:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 01:47:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 01:47:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 01:47:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 01:47:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 01:47:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 01:47:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 01:47:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 01:47:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 01:47:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 01:47:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 01:47:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 01:47:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 01:47:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 01:47:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 01:47:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 01:47:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 01:47:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 01:47:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 01:47:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-19 01:47:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 01:47:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 01:47:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 01:47:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 01:47:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 01:47:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 01:47:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-19 01:47:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 01:47:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 01:47:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 01:47:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 01:47:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:47:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 01:47:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 01:47:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 01:47:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 01:47:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 01:47:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 01:47:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:47:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 01:47:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 01:47:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:47:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:47:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 01:47:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:47:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 01:47:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 01:47:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 01:47:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 01:47:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:47:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 01:47:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 01:47:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 01:47:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 01:47:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 01:47:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 01:47:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 01:47:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 01:47:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 01:47:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 01:47:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 01:47:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 01:47:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 01:47:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 01:47:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-19 01:47:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 01:47:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-19 01:47:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 01:47:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 01:47:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 01:47:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 01:47:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:47:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:47:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 01:47:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:47:12,960 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:47:12,960 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 01:47:12,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:47:12 BoogieIcfgContainer [2020-08-19 01:47:12,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:47:12,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:47:12,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:47:12,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:47:12,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:47:11" (1/3) ... [2020-08-19 01:47:12,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d107f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:47:12, skipping insertion in model container [2020-08-19 01:47:12,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:11" (2/3) ... [2020-08-19 01:47:12,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d107f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:47:12, skipping insertion in model container [2020-08-19 01:47:12,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:47:12" (3/3) ... [2020-08-19 01:47:12,974 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-08-19 01:47:12,984 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:47:12,995 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:47:13,009 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:47:13,038 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:47:13,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:47:13,039 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:47:13,039 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:47:13,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:47:13,040 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:47:13,040 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:47:13,040 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:47:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-08-19 01:47:13,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-19 01:47:13,083 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:13,084 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] [2020-08-19 01:47:13,084 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:13,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1414244218, now seen corresponding path program 1 times [2020-08-19 01:47:13,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:13,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046799808] [2020-08-19 01:47:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,765 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:47:13,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:47:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:47:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:47:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:47:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:47:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 01:47:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 01:47:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 01:47:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:47:13,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046799808] [2020-08-19 01:47:13,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:47:13,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 01:47:13,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093693962] [2020-08-19 01:47:13,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 01:47:13,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:47:13,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 01:47:13,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 01:47:13,872 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 3 states. [2020-08-19 01:47:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:47:14,741 INFO L93 Difference]: Finished difference Result 220 states and 294 transitions. [2020-08-19 01:47:14,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 01:47:14,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-19 01:47:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:47:14,757 INFO L225 Difference]: With dead ends: 220 [2020-08-19 01:47:14,758 INFO L226 Difference]: Without dead ends: 120 [2020-08-19 01:47:14,762 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 [2020-08-19 01:47:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-08-19 01:47:14,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2020-08-19 01:47:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-08-19 01:47:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2020-08-19 01:47:14,890 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 52 [2020-08-19 01:47:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:47:14,891 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2020-08-19 01:47:14,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 01:47:14,891 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2020-08-19 01:47:14,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-19 01:47:14,896 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:14,896 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] [2020-08-19 01:47:14,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:47:14,897 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:14,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:14,897 INFO L82 PathProgramCache]: Analyzing trace with hash -803860910, now seen corresponding path program 1 times [2020-08-19 01:47:14,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:14,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188885281] [2020-08-19 01:47:14,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,255 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:47:15,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:47:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:47:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:47:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:47:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:47:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 01:47:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:47:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 01:47:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:47:15,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188885281] [2020-08-19 01:47:15,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:47:15,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 01:47:15,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647724870] [2020-08-19 01:47:15,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 01:47:15,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:47:15,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 01:47:15,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 01:47:15,310 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand 4 states. [2020-08-19 01:47:15,728 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:47:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:47:16,224 INFO L93 Difference]: Finished difference Result 149 states and 181 transitions. [2020-08-19 01:47:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 01:47:16,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-19 01:47:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:47:16,228 INFO L225 Difference]: With dead ends: 149 [2020-08-19 01:47:16,229 INFO L226 Difference]: Without dead ends: 104 [2020-08-19 01:47:16,231 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 [2020-08-19 01:47:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-08-19 01:47:16,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 82. [2020-08-19 01:47:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-08-19 01:47:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2020-08-19 01:47:16,267 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 53 [2020-08-19 01:47:16,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:47:16,267 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2020-08-19 01:47:16,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 01:47:16,267 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2020-08-19 01:47:16,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-19 01:47:16,269 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:16,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:47:16,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:47:16,270 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:16,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:16,270 INFO L82 PathProgramCache]: Analyzing trace with hash 9396391, now seen corresponding path program 1 times [2020-08-19 01:47:16,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:16,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159651801] [2020-08-19 01:47:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,651 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:47:16,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:47:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:47:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:47:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:47:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:47:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 01:47:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 01:47:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 01:47:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:47:16,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159651801] [2020-08-19 01:47:16,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:47:16,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 01:47:16,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704206818] [2020-08-19 01:47:16,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 01:47:16,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:47:16,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 01:47:16,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:47:16,756 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 8 states. [2020-08-19 01:47:17,081 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:47:17,395 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:47:17,669 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:47:17,908 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:47:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:47:18,741 INFO L93 Difference]: Finished difference Result 162 states and 199 transitions. [2020-08-19 01:47:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 01:47:18,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-19 01:47:18,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:47:18,745 INFO L225 Difference]: With dead ends: 162 [2020-08-19 01:47:18,745 INFO L226 Difference]: Without dead ends: 104 [2020-08-19 01:47:18,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 01:47:18,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-08-19 01:47:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 82. [2020-08-19 01:47:18,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-08-19 01:47:18,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2020-08-19 01:47:18,777 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 58 [2020-08-19 01:47:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:47:18,777 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2020-08-19 01:47:18,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 01:47:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2020-08-19 01:47:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-19 01:47:18,779 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:18,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:47:18,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:47:18,780 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:18,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:18,780 INFO L82 PathProgramCache]: Analyzing trace with hash 446188768, now seen corresponding path program 1 times [2020-08-19 01:47:18,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:18,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335460885] [2020-08-19 01:47:18,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,074 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:47:19,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:47:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:47:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:47:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:47:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:47:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 01:47:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 01:47:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 01:47:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-19 01:47:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:47:19,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335460885] [2020-08-19 01:47:19,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:47:19,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 01:47:19,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249440668] [2020-08-19 01:47:19,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 01:47:19,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:47:19,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 01:47:19,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-19 01:47:19,191 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 7 states. [2020-08-19 01:47:19,523 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:47:20,417 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:47:20,701 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:47:21,000 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:47:21,232 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:47:21,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:47:21,522 INFO L93 Difference]: Finished difference Result 209 states and 259 transitions. [2020-08-19 01:47:21,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 01:47:21,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-08-19 01:47:21,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:47:21,527 INFO L225 Difference]: With dead ends: 209 [2020-08-19 01:47:21,527 INFO L226 Difference]: Without dead ends: 151 [2020-08-19 01:47:21,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-19 01:47:21,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-08-19 01:47:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 136. [2020-08-19 01:47:21,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-08-19 01:47:21,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2020-08-19 01:47:21,605 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 61 [2020-08-19 01:47:21,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:47:21,605 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2020-08-19 01:47:21,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 01:47:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2020-08-19 01:47:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 01:47:21,607 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:21,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:47:21,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:47:21,614 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:21,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:21,615 INFO L82 PathProgramCache]: Analyzing trace with hash 236169914, now seen corresponding path program 1 times [2020-08-19 01:47:21,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:21,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901392486] [2020-08-19 01:47:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,921 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:47:21,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:47:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:47:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:47:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:47:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:47:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 01:47:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 01:47:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:21,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 01:47:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:22,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 01:47:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:22,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-19 01:47:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:47:22,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901392486] [2020-08-19 01:47:22,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:47:22,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 01:47:22,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966285052] [2020-08-19 01:47:22,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 01:47:22,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:47:22,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 01:47:22,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:47:22,020 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 5 states. [2020-08-19 01:47:22,341 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:47:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:47:22,847 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2020-08-19 01:47:22,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 01:47:22,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-08-19 01:47:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:47:22,855 INFO L225 Difference]: With dead ends: 205 [2020-08-19 01:47:22,855 INFO L226 Difference]: Without dead ends: 136 [2020-08-19 01:47:22,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 01:47:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-19 01:47:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 123. [2020-08-19 01:47:22,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-08-19 01:47:22,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2020-08-19 01:47:22,885 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 65 [2020-08-19 01:47:22,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:47:22,885 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2020-08-19 01:47:22,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 01:47:22,885 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2020-08-19 01:47:22,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 01:47:22,887 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:22,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:47:22,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 01:47:22,888 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:22,888 INFO L82 PathProgramCache]: Analyzing trace with hash 993675046, now seen corresponding path program 1 times [2020-08-19 01:47:22,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:22,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771672481] [2020-08-19 01:47:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 01:47:22,952 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 01:47:22,952 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 01:47:22,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 01:47:22,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 01:47:22 BoogieIcfgContainer [2020-08-19 01:47:22,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 01:47:22,980 INFO L168 Benchmark]: Toolchain (without parser) took 11813.81 ms. Allocated memory was 137.9 MB in the beginning and 431.0 MB in the end (delta: 293.1 MB). Free memory was 100.1 MB in the beginning and 233.0 MB in the end (delta: -132.8 MB). Peak memory consumption was 160.2 MB. Max. memory is 7.1 GB. [2020-08-19 01:47:22,980 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 01:47:22,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.06 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 171.8 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-08-19 01:47:22,982 INFO L168 Benchmark]: Boogie Preprocessor took 106.11 ms. Allocated memory is still 201.3 MB. Free memory was 171.8 MB in the beginning and 167.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-08-19 01:47:22,983 INFO L168 Benchmark]: RCFGBuilder took 1087.17 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 167.2 MB in the beginning and 202.2 MB in the end (delta: -35.0 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2020-08-19 01:47:22,984 INFO L168 Benchmark]: TraceAbstraction took 10010.95 ms. Allocated memory was 231.2 MB in the beginning and 431.0 MB in the end (delta: 199.8 MB). Free memory was 200.7 MB in the beginning and 233.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 167.5 MB. Max. memory is 7.1 GB. [2020-08-19 01:47:22,987 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 605.06 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 171.8 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.11 ms. Allocated memory is still 201.3 MB. Free memory was 171.8 MB in the beginning and 167.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1087.17 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 167.2 MB in the beginning and 202.2 MB in the end (delta: -35.0 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10010.95 ms. Allocated memory was 231.2 MB in the beginning and 431.0 MB in the end (delta: 199.8 MB). Free memory was 200.7 MB in the beginning and 233.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 167.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L859] FCALL select_helpers() [L860] FCALL select_features() [L861] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L861] RET, EXPR valid_product() [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L865] FCALL setup() [L866] CALL runTest() [L848] CALL test() [L543] int splverifierCounter ; [L544] int tmp ; [L545] int tmp___0 ; [L546] int tmp___1 ; [L547] int tmp___2 ; [L550] splverifierCounter = 0 [L552] COND TRUE 1 [L554] COND TRUE splverifierCounter < 4 [L560] tmp = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp) [L564] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L564] RET waterRise() [L570] tmp___0 = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp___0)) [L580] tmp___2 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___2)) [L588] tmp___1 = __VERIFIER_nondet_int() [L590] COND FALSE !(\read(tmp___1)) [L597] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] FCALL processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L754] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L754] RET, EXPR isMethaneLevelCritical() [L754] tmp = isMethaneLevelCritical() [L756] COND FALSE !(\read(tmp)) [L760] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L760] RET, EXPR getWaterLevel() [L760] tmp___0 = getWaterLevel() [L762] COND TRUE tmp___0 == 2 [L764] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L764] RET, EXPR isPumpRunning() [L764] tmp___1 = isPumpRunning() [L766] COND FALSE !(\read(tmp___1)) [L770] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 208 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 386 SDtfs, 474 SDslu, 214 SDs, 0 SdLazy, 1003 SolverSat, 275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 101 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 79940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...