/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:58:40,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:58:40,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:58:40,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:58:40,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:58:40,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:58:40,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:58:40,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:58:40,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:58:40,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:58:40,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:58:40,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:58:40,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:58:40,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:58:40,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:58:40,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:58:40,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:58:40,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:58:40,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:58:40,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:58:40,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:58:40,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:58:40,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:58:40,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:58:40,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:58:40,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:58:40,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:58:40,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:58:40,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:58:40,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:58:40,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:58:40,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:58:40,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:58:40,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:58:40,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:58:40,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:58:40,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:58:40,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:58:40,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:58:40,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:58:40,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:58:40,909 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 [2020-08-21 13:58:40,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:58:40,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:58:40,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:58:40,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:58:40,957 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:58:40,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:58:40,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:58:40,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:58:40,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:58:40,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:58:40,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:58:40,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:58:40,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:58:40,960 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:58:40,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:58:40,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:58:40,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:58:40,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:58:40,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:58:40,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:58:40,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:58:40,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:58:40,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:58:40,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:58:40,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:58:40,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:58:40,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:58:40,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:58:40,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:58:40,964 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 -> log-additional-information=true; [2020-08-21 13:58:41,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:58:41,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:58:41,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:58:41,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:58:41,276 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:58:41,277 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c [2020-08-21 13:58:41,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d46a8ac52/4688d8081ace4bb9b97cccaf69a0052a/FLAG066ee7256 [2020-08-21 13:58:41,852 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:58:41,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c [2020-08-21 13:58:41,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d46a8ac52/4688d8081ace4bb9b97cccaf69a0052a/FLAG066ee7256 [2020-08-21 13:58:42,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d46a8ac52/4688d8081ace4bb9b97cccaf69a0052a [2020-08-21 13:58:42,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:58:42,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:58:42,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:58:42,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:58:42,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:58:42,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e42023b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42, skipping insertion in model container [2020-08-21 13:58:42,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:58:42,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:58:42,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:58:42,710 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:58:42,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:58:42,815 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:58:42,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42 WrapperNode [2020-08-21 13:58:42,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:58:42,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:58:42,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:58:42,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:58:42,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (1/1) ... [2020-08-21 13:58:42,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:58:42,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:58:42,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:58:42,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:58:42,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (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 [2020-08-21 13:58:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:58:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:58:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 13:58:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 13:58:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 13:58:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 13:58:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 13:58:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 13:58:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 13:58:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 13:58:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 13:58:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 13:58:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 13:58:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 13:58:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 13:58:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-21 13:58:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 13:58:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 13:58:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 13:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 13:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 13:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 13:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 13:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 13:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-21 13:58:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 13:58:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 13:58:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 13:58:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 13:58:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 13:58:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 13:58:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 13:58:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:58:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 13:58:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 13:58:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 13:58:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 13:58:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-21 13:58:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:58:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:58:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 13:58:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 13:58:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 13:58:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 13:58:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 13:58:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 13:58:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 13:58:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:58:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 13:58:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 13:58:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:58:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 13:58:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 13:58:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:58:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 13:58:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 13:58:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:58:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 13:58:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 13:58:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 13:58:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 13:58:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 13:58:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 13:58:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 13:58:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-21 13:58:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 13:58:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 13:58:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 13:58:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 13:58:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 13:58:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 13:58:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-21 13:58:43,031 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 13:58:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 13:58:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-21 13:58:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 13:58:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 13:58:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 13:58:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 13:58:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 13:58:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 13:58:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 13:58:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 13:58:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 13:58:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 13:58:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:58:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 13:58:43,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:58:43,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 13:58:43,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:58:44,235 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:58:44,235 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 13:58:44,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:58:44 BoogieIcfgContainer [2020-08-21 13:58:44,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:58:44,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:58:44,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:58:44,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:58:44,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:58:42" (1/3) ... [2020-08-21 13:58:44,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3ef8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:58:44, skipping insertion in model container [2020-08-21 13:58:44,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:58:42" (2/3) ... [2020-08-21 13:58:44,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3ef8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:58:44, skipping insertion in model container [2020-08-21 13:58:44,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:58:44" (3/3) ... [2020-08-21 13:58:44,259 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2020-08-21 13:58:44,267 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:58:44,275 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:58:44,286 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:58:44,310 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:58:44,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:58:44,311 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:58:44,311 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:58:44,311 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:58:44,311 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:58:44,311 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:58:44,312 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:58:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2020-08-21 13:58:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-21 13:58:44,344 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:58:44,345 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] [2020-08-21 13:58:44,345 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:58:44,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:58:44,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1827738968, now seen corresponding path program 1 times [2020-08-21 13:58:44,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:58:44,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832753962] [2020-08-21 13:58:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:58:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,071 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:58:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:58:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:58:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:58:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:58:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:58:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 13:58:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 13:58:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:45,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:58:45,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832753962] [2020-08-21 13:58:45,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:58:45,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:58:45,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500424064] [2020-08-21 13:58:45,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:58:45,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:58:45,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:58:45,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:58:45,216 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 3 states. [2020-08-21 13:58:46,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:58:46,217 INFO L93 Difference]: Finished difference Result 261 states and 346 transitions. [2020-08-21 13:58:46,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:58:46,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-21 13:58:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:58:46,236 INFO L225 Difference]: With dead ends: 261 [2020-08-21 13:58:46,237 INFO L226 Difference]: Without dead ends: 142 [2020-08-21 13:58:46,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:58:46,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-08-21 13:58:46,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 110. [2020-08-21 13:58:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-08-21 13:58:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2020-08-21 13:58:46,330 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 46 [2020-08-21 13:58:46,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:58:46,331 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2020-08-21 13:58:46,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:58:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2020-08-21 13:58:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-21 13:58:46,335 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:58:46,335 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] [2020-08-21 13:58:46,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:58:46,336 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:58:46,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:58:46,337 INFO L82 PathProgramCache]: Analyzing trace with hash 622240591, now seen corresponding path program 1 times [2020-08-21 13:58:46,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:58:46,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936635581] [2020-08-21 13:58:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:58:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,672 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:58:46,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:58:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:58:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:58:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:58:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:58:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 13:58:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 13:58:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:58:46,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936635581] [2020-08-21 13:58:46,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:58:46,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:58:46,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091617900] [2020-08-21 13:58:46,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 13:58:46,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:58:46,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 13:58:46,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 13:58:46,729 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 4 states. [2020-08-21 13:58:47,155 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:58:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:58:47,836 INFO L93 Difference]: Finished difference Result 188 states and 229 transitions. [2020-08-21 13:58:47,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:58:47,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-21 13:58:47,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:58:47,840 INFO L225 Difference]: With dead ends: 188 [2020-08-21 13:58:47,840 INFO L226 Difference]: Without dead ends: 126 [2020-08-21 13:58:47,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:58:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-08-21 13:58:47,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 101. [2020-08-21 13:58:47,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-08-21 13:58:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-08-21 13:58:47,877 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 47 [2020-08-21 13:58:47,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:58:47,878 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-08-21 13:58:47,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 13:58:47,878 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-08-21 13:58:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 13:58:47,880 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:58:47,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:58:47,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:58:47,881 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:58:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:58:47,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1297415431, now seen corresponding path program 1 times [2020-08-21 13:58:47,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:58:47,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339629519] [2020-08-21 13:58:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:58:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,179 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:58:48,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:58:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:58:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:58:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:58:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:58:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 13:58:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 13:58:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:58:48,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339629519] [2020-08-21 13:58:48,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:58:48,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 13:58:48,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928546079] [2020-08-21 13:58:48,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:58:48,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:58:48,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:58:48,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:58:48,305 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 8 states. [2020-08-21 13:58:48,649 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:58:48,951 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:49,237 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:49,471 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:50,189 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:58:51,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:58:51,508 INFO L93 Difference]: Finished difference Result 351 states and 437 transitions. [2020-08-21 13:58:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:58:51,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-21 13:58:51,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:58:51,513 INFO L225 Difference]: With dead ends: 351 [2020-08-21 13:58:51,514 INFO L226 Difference]: Without dead ends: 274 [2020-08-21 13:58:51,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:58:51,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-08-21 13:58:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 220. [2020-08-21 13:58:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-21 13:58:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2020-08-21 13:58:51,617 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 51 [2020-08-21 13:58:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:58:51,617 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2020-08-21 13:58:51,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:58:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2020-08-21 13:58:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-21 13:58:51,628 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:58:51,629 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] [2020-08-21 13:58:51,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:58:51,629 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:58:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:58:51,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1649615923, now seen corresponding path program 1 times [2020-08-21 13:58:51,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:58:51,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [663126760] [2020-08-21 13:58:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:58:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:51,978 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:58:51,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:58:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:58:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:58:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:58:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:58:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 13:58:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 13:58:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 13:58:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:58:52,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [663126760] [2020-08-21 13:58:52,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:58:52,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 13:58:52,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268193529] [2020-08-21 13:58:52,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 13:58:52,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:58:52,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 13:58:52,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-21 13:58:52,110 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand 12 states. [2020-08-21 13:58:52,480 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:58:52,802 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:53,041 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:53,269 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:53,784 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:58:54,615 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:54,948 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 13:58:55,241 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 13:58:55,471 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 13:58:55,707 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:58:55,985 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 13:58:56,259 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 13:58:56,584 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:58:57,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:58:57,680 INFO L93 Difference]: Finished difference Result 871 states and 1174 transitions. [2020-08-21 13:58:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 13:58:57,680 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-08-21 13:58:57,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:58:57,689 INFO L225 Difference]: With dead ends: 871 [2020-08-21 13:58:57,689 INFO L226 Difference]: Without dead ends: 675 [2020-08-21 13:58:57,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-21 13:58:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2020-08-21 13:58:57,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 582. [2020-08-21 13:58:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-08-21 13:58:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 724 transitions. [2020-08-21 13:58:57,867 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 724 transitions. Word has length 57 [2020-08-21 13:58:57,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:58:57,868 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 724 transitions. [2020-08-21 13:58:57,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 13:58:57,868 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 724 transitions. [2020-08-21 13:58:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-21 13:58:57,871 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:58:57,871 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] [2020-08-21 13:58:57,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:58:57,872 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:58:57,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:58:57,872 INFO L82 PathProgramCache]: Analyzing trace with hash 671694067, now seen corresponding path program 1 times [2020-08-21 13:58:57,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:58:57,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582705226] [2020-08-21 13:58:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:58:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,098 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:58:58,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:58:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:58:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:58:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:58:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:58:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 13:58:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 13:58:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 13:58:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-21 13:58:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:58:58,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582705226] [2020-08-21 13:58:58,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:58:58,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 13:58:58,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955076872] [2020-08-21 13:58:58,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 13:58:58,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:58:58,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 13:58:58,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 13:58:58,185 INFO L87 Difference]: Start difference. First operand 582 states and 724 transitions. Second operand 6 states. [2020-08-21 13:58:58,470 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:58:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:58:59,281 INFO L93 Difference]: Finished difference Result 973 states and 1255 transitions. [2020-08-21 13:58:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 13:58:59,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-08-21 13:58:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:58:59,288 INFO L225 Difference]: With dead ends: 973 [2020-08-21 13:58:59,288 INFO L226 Difference]: Without dead ends: 415 [2020-08-21 13:58:59,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:58:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-08-21 13:58:59,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 390. [2020-08-21 13:58:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-08-21 13:58:59,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 449 transitions. [2020-08-21 13:58:59,402 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 449 transitions. Word has length 61 [2020-08-21 13:58:59,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:58:59,403 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 449 transitions. [2020-08-21 13:58:59,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 13:58:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 449 transitions. [2020-08-21 13:58:59,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-21 13:58:59,405 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:58:59,406 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:58:59,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:58:59,406 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:58:59,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:58:59,406 INFO L82 PathProgramCache]: Analyzing trace with hash -511342643, now seen corresponding path program 1 times [2020-08-21 13:58:59,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:58:59,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566616143] [2020-08-21 13:58:59,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:58:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,674 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:58:59,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:58:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:58:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:58:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:58:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:58:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 13:58:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 13:58:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 13:58:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 13:58:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:58:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 13:58:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-21 13:58:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 13:58:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:58:59,846 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 13:58:59,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566616143] [2020-08-21 13:58:59,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:58:59,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 13:58:59,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101191272] [2020-08-21 13:58:59,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 13:58:59,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:58:59,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 13:58:59,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:58:59,848 INFO L87 Difference]: Start difference. First operand 390 states and 449 transitions. Second operand 10 states. [2020-08-21 13:59:00,369 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-21 13:59:00,871 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:59:01,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:59:01,680 INFO L93 Difference]: Finished difference Result 522 states and 614 transitions. [2020-08-21 13:59:01,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 13:59:01,680 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2020-08-21 13:59:01,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:59:01,681 INFO L225 Difference]: With dead ends: 522 [2020-08-21 13:59:01,681 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 13:59:01,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-08-21 13:59:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 13:59:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 13:59:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 13:59:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 13:59:01,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2020-08-21 13:59:01,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:59:01,685 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 13:59:01,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 13:59:01,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 13:59:01,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 13:59:01,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 13:59:01,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 13:59:02,673 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 230 [2020-08-21 13:59:03,887 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 228 [2020-08-21 13:59:05,315 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-08-21 13:59:05,893 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-21 13:59:06,212 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-21 13:59:06,566 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-21 13:59:06,734 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-08-21 13:59:07,068 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-21 13:59:07,286 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 22 [2020-08-21 13:59:07,518 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:59:08,157 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-08-21 13:59:08,331 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-21 13:59:08,977 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-08-21 13:59:09,253 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-21 13:59:09,607 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-21 13:59:10,146 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-08-21 13:59:10,317 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-21 13:59:10,911 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-21 13:59:11,262 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-21 13:59:11,449 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 22 [2020-08-21 13:59:11,804 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-21 13:59:12,122 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-21 13:59:12,475 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-21 13:59:12,581 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 22 [2020-08-21 13:59:13,174 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-21 13:59:13,788 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 21 [2020-08-21 13:59:13,827 INFO L268 CegarLoopResult]: For program point L123(lines 123 127) no Hoare annotation was computed. [2020-08-21 13:59:13,828 INFO L268 CegarLoopResult]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2020-08-21 13:59:13,828 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-21 13:59:13,828 INFO L268 CegarLoopResult]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2020-08-21 13:59:13,828 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2020-08-21 13:59:13,829 INFO L268 CegarLoopResult]: For program point L139(lines 116 140) no Hoare annotation was computed. [2020-08-21 13:59:13,829 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2020-08-21 13:59:13,829 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2020-08-21 13:59:13,829 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point L193-1(line 193) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point L180(lines 180 184) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2020-08-21 13:59:13,830 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2020-08-21 13:59:13,831 INFO L268 CegarLoopResult]: For program point L200(lines 173 201) no Hoare annotation was computed. [2020-08-21 13:59:13,831 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 870 876) the Hoare annotation is: true [2020-08-21 13:59:13,831 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 870 876) no Hoare annotation was computed. [2020-08-21 13:59:13,831 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 877 885) no Hoare annotation was computed. [2020-08-21 13:59:13,831 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 877 885) the Hoare annotation is: true [2020-08-21 13:59:13,831 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 877 885) no Hoare annotation was computed. [2020-08-21 13:59:13,831 INFO L264 CegarLoopResult]: At program point L897(line 897) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-21 13:59:13,832 INFO L268 CegarLoopResult]: For program point L897-1(line 897) no Hoare annotation was computed. [2020-08-21 13:59:13,832 INFO L268 CegarLoopResult]: For program point L895(lines 895 908) no Hoare annotation was computed. [2020-08-21 13:59:13,832 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 887 911) the Hoare annotation is: true [2020-08-21 13:59:13,832 INFO L268 CegarLoopResult]: For program point L895-1(lines 887 911) no Hoare annotation was computed. [2020-08-21 13:59:13,832 INFO L271 CegarLoopResult]: At program point L893(line 893) the Hoare annotation is: true [2020-08-21 13:59:13,832 INFO L268 CegarLoopResult]: For program point L893-1(line 893) no Hoare annotation was computed. [2020-08-21 13:59:13,832 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 887 911) no Hoare annotation was computed. [2020-08-21 13:59:13,833 INFO L264 CegarLoopResult]: At program point L901(line 901) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-21 13:59:13,833 INFO L268 CegarLoopResult]: For program point L899(lines 899 905) no Hoare annotation was computed. [2020-08-21 13:59:13,833 INFO L264 CegarLoopResult]: At program point L834-1(line 834) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,833 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 828 850) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,833 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 828 850) no Hoare annotation was computed. [2020-08-21 13:59:13,834 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 828 850) no Hoare annotation was computed. [2020-08-21 13:59:13,834 INFO L264 CegarLoopResult]: At program point L840(line 840) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= main_~tmp~6 ~waterLevel~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,834 INFO L264 CegarLoopResult]: At program point L840-1(line 840) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= main_~tmp~6 ~waterLevel~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,834 INFO L268 CegarLoopResult]: For program point L838(lines 838 845) no Hoare annotation was computed. [2020-08-21 13:59:13,834 INFO L268 CegarLoopResult]: For program point L838-1(lines 838 845) no Hoare annotation was computed. [2020-08-21 13:59:13,834 INFO L268 CegarLoopResult]: For program point L836(line 836) no Hoare annotation was computed. [2020-08-21 13:59:13,835 INFO L264 CegarLoopResult]: At program point L835(line 835) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,835 INFO L264 CegarLoopResult]: At program point L834(line 834) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,835 INFO L268 CegarLoopResult]: For program point L801(line 801) no Hoare annotation was computed. [2020-08-21 13:59:13,835 INFO L268 CegarLoopResult]: For program point L800(line 800) no Hoare annotation was computed. [2020-08-21 13:59:13,835 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 784 807) no Hoare annotation was computed. [2020-08-21 13:59:13,836 INFO L268 CegarLoopResult]: For program point L799(line 799) no Hoare annotation was computed. [2020-08-21 13:59:13,836 INFO L268 CegarLoopResult]: For program point L798(line 798) no Hoare annotation was computed. [2020-08-21 13:59:13,836 INFO L268 CegarLoopResult]: For program point L797(line 797) no Hoare annotation was computed. [2020-08-21 13:59:13,836 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 784 807) no Hoare annotation was computed. [2020-08-21 13:59:13,836 INFO L268 CegarLoopResult]: For program point L796(line 796) no Hoare annotation was computed. [2020-08-21 13:59:13,836 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 784 807) no Hoare annotation was computed. [2020-08-21 13:59:13,836 INFO L268 CegarLoopResult]: For program point L795(line 795) no Hoare annotation was computed. [2020-08-21 13:59:13,837 INFO L268 CegarLoopResult]: For program point L794(line 794) no Hoare annotation was computed. [2020-08-21 13:59:13,837 INFO L268 CegarLoopResult]: For program point L793(line 793) no Hoare annotation was computed. [2020-08-21 13:59:13,837 INFO L268 CegarLoopResult]: For program point L792(line 792) no Hoare annotation was computed. [2020-08-21 13:59:13,837 INFO L268 CegarLoopResult]: For program point L791(line 791) no Hoare annotation was computed. [2020-08-21 13:59:13,837 INFO L268 CegarLoopResult]: For program point L790(line 790) no Hoare annotation was computed. [2020-08-21 13:59:13,837 INFO L268 CegarLoopResult]: For program point L789(line 789) no Hoare annotation was computed. [2020-08-21 13:59:13,837 INFO L268 CegarLoopResult]: For program point L802(line 802) no Hoare annotation was computed. [2020-08-21 13:59:13,838 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 660 674) no Hoare annotation was computed. [2020-08-21 13:59:13,838 INFO L264 CegarLoopResult]: At program point L666(line 666) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-21 13:59:13,838 INFO L268 CegarLoopResult]: For program point L664(lines 664 670) no Hoare annotation was computed. [2020-08-21 13:59:13,838 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 660 674) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= |old(~systemActive~0)| ~systemActive~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))))) [2020-08-21 13:59:13,838 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 660 674) no Hoare annotation was computed. [2020-08-21 13:59:13,838 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 596 604) no Hoare annotation was computed. [2020-08-21 13:59:13,839 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 596 604) the Hoare annotation is: true [2020-08-21 13:59:13,839 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 596 604) no Hoare annotation was computed. [2020-08-21 13:59:13,839 INFO L268 CegarLoopResult]: For program point L650(lines 650 654) no Hoare annotation was computed. [2020-08-21 13:59:13,839 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 641 659) the Hoare annotation is: true [2020-08-21 13:59:13,839 INFO L271 CegarLoopResult]: At program point L648(line 648) the Hoare annotation is: true [2020-08-21 13:59:13,839 INFO L268 CegarLoopResult]: For program point L650-2(lines 650 654) no Hoare annotation was computed. [2020-08-21 13:59:13,840 INFO L268 CegarLoopResult]: For program point L648-1(line 648) no Hoare annotation was computed. [2020-08-21 13:59:13,840 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 641 659) no Hoare annotation was computed. [2020-08-21 13:59:13,840 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 641 659) no Hoare annotation was computed. [2020-08-21 13:59:13,840 INFO L268 CegarLoopResult]: For program point L635(line 635) no Hoare annotation was computed. [2020-08-21 13:59:13,840 INFO L268 CegarLoopResult]: For program point L635-1(line 635) no Hoare annotation was computed. [2020-08-21 13:59:13,840 INFO L268 CegarLoopResult]: For program point L624(lines 624 632) no Hoare annotation was computed. [2020-08-21 13:59:13,840 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 605 640) no Hoare annotation was computed. [2020-08-21 13:59:13,841 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 632) no Hoare annotation was computed. [2020-08-21 13:59:13,841 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 605 640) no Hoare annotation was computed. [2020-08-21 13:59:13,841 INFO L268 CegarLoopResult]: For program point L612(lines 612 620) no Hoare annotation was computed. [2020-08-21 13:59:13,841 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 605 640) no Hoare annotation was computed. [2020-08-21 13:59:13,841 INFO L268 CegarLoopResult]: For program point L612-2(lines 612 620) no Hoare annotation was computed. [2020-08-21 13:59:13,841 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 863 869) no Hoare annotation was computed. [2020-08-21 13:59:13,842 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 863 869) the Hoare annotation is: true [2020-08-21 13:59:13,842 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2020-08-21 13:59:13,842 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2020-08-21 13:59:13,842 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2020-08-21 13:59:13,842 INFO L268 CegarLoopResult]: For program point L379(lines 379 386) no Hoare annotation was computed. [2020-08-21 13:59:13,842 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2020-08-21 13:59:13,842 INFO L268 CegarLoopResult]: For program point L373(lines 373 393) no Hoare annotation was computed. [2020-08-21 13:59:13,843 INFO L268 CegarLoopResult]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2020-08-21 13:59:13,843 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2020-08-21 13:59:13,843 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2020-08-21 13:59:13,843 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 815 824) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,843 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 815 824) no Hoare annotation was computed. [2020-08-21 13:59:13,843 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 815 824) no Hoare annotation was computed. [2020-08-21 13:59:13,843 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 585 595) no Hoare annotation was computed. [2020-08-21 13:59:13,844 INFO L268 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-08-21 13:59:13,844 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-21 13:59:13,844 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 585 595) no Hoare annotation was computed. [2020-08-21 13:59:13,844 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 585 595) no Hoare annotation was computed. [2020-08-21 13:59:13,844 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 577 584) the Hoare annotation is: true [2020-08-21 13:59:13,844 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 577 584) no Hoare annotation was computed. [2020-08-21 13:59:13,844 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 577 584) no Hoare annotation was computed. [2020-08-21 13:59:13,845 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 544 568) no Hoare annotation was computed. [2020-08-21 13:59:13,845 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 544 568) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse1 .cse0 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-21 13:59:13,845 INFO L264 CegarLoopResult]: At program point L563(line 563) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse1 .cse0 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-21 13:59:13,845 INFO L268 CegarLoopResult]: For program point L563-1(lines 544 568) no Hoare annotation was computed. [2020-08-21 13:59:13,845 INFO L264 CegarLoopResult]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-21 13:59:13,845 INFO L264 CegarLoopResult]: At program point L554(line 554) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-21 13:59:13,846 INFO L268 CegarLoopResult]: For program point L552(lines 552 560) no Hoare annotation was computed. [2020-08-21 13:59:13,846 INFO L264 CegarLoopResult]: At program point L550(line 550) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-21 13:59:13,846 INFO L268 CegarLoopResult]: For program point L550-1(line 550) no Hoare annotation was computed. [2020-08-21 13:59:13,846 INFO L268 CegarLoopResult]: For program point L548(lines 548 565) no Hoare annotation was computed. [2020-08-21 13:59:13,846 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 536 542) no Hoare annotation was computed. [2020-08-21 13:59:13,846 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 536 542) the Hoare annotation is: true [2020-08-21 13:59:13,846 INFO L268 CegarLoopResult]: For program point L706-1(lines 706 712) no Hoare annotation was computed. [2020-08-21 13:59:13,847 INFO L264 CegarLoopResult]: At program point testENTRY(lines 686 751) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,847 INFO L268 CegarLoopResult]: For program point L698(lines 698 702) no Hoare annotation was computed. [2020-08-21 13:59:13,847 INFO L268 CegarLoopResult]: For program point testFINAL(lines 686 751) no Hoare annotation was computed. [2020-08-21 13:59:13,847 INFO L264 CegarLoopResult]: At program point L744(lines 695 745) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-21 13:59:13,847 INFO L264 CegarLoopResult]: At program point L734(line 734) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse0 .cse1) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)))) [2020-08-21 13:59:13,847 INFO L268 CegarLoopResult]: For program point L732(lines 732 738) no Hoare annotation was computed. [2020-08-21 13:59:13,848 INFO L264 CegarLoopResult]: At program point L732-1(lines 726 739) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-21 13:59:13,848 INFO L268 CegarLoopResult]: For program point L697(lines 696 743) no Hoare annotation was computed. [2020-08-21 13:59:13,848 INFO L268 CegarLoopResult]: For program point L726(lines 726 739) no Hoare annotation was computed. [2020-08-21 13:59:13,848 INFO L264 CegarLoopResult]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-21 13:59:13,848 INFO L268 CegarLoopResult]: For program point L716(lines 716 722) no Hoare annotation was computed. [2020-08-21 13:59:13,848 INFO L268 CegarLoopResult]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2020-08-21 13:59:13,848 INFO L264 CegarLoopResult]: At program point L741(lines 696 743) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-21 13:59:13,849 INFO L264 CegarLoopResult]: At program point L708(line 708) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-21 13:59:13,849 INFO L268 CegarLoopResult]: For program point testEXIT(lines 686 751) no Hoare annotation was computed. [2020-08-21 13:59:13,849 INFO L268 CegarLoopResult]: For program point L706(lines 706 712) no Hoare annotation was computed. [2020-08-21 13:59:13,849 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2020-08-21 13:59:13,849 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2020-08-21 13:59:13,849 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2020-08-21 13:59:13,849 INFO L268 CegarLoopResult]: For program point L333(lines 333 340) no Hoare annotation was computed. [2020-08-21 13:59:13,849 INFO L268 CegarLoopResult]: For program point L327(lines 327 347) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 492 500) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 492 500) the Hoare annotation is: true [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 492 500) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 460 482) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 460 482) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 460 482) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point L468(lines 468 476) no Hoare annotation was computed. [2020-08-21 13:59:13,850 INFO L268 CegarLoopResult]: For program point L468-2(lines 468 476) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point L256(lines 256 297) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point L275(line 275) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point L275-1(line 275) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point L234(lines 234 238) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point L298(lines 298 309) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point L261(lines 261 265) no Hoare annotation was computed. [2020-08-21 13:59:13,851 INFO L268 CegarLoopResult]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point L280(lines 258 281) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point L239(lines 239 255) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point L299(lines 299 306) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point L260(lines 259 279) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point L291(line 291) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point L291-1(line 291) no Hoare annotation was computed. [2020-08-21 13:59:13,852 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 853 862) no Hoare annotation was computed. [2020-08-21 13:59:13,853 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 853 862) no Hoare annotation was computed. [2020-08-21 13:59:13,853 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 853 862) no Hoare annotation was computed. [2020-08-21 13:59:13,853 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:59:13,853 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#t~string29.offset| |old(#t~string29.offset)|) (= |#t~string56.base| |old(#t~string56.base)|) (= |#t~string58.base| |old(#t~string58.base)|) (= |old(#valid)| |#valid|) (= |#t~string50.base| |old(#t~string50.base)|) (= |#t~string30.offset| |old(#t~string30.offset)|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |#t~string32.base| |old(#t~string32.base)|) (= |#t~string28.base| |old(#t~string28.base)|) (= |#t~string31.base| |old(#t~string31.base)|) (= |#t~string48.base| |old(#t~string48.base)|) (= |#t~string21.base| |old(#t~string21.base)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string52.offset| |old(#t~string52.offset)|) (= |#t~string27.offset| |old(#t~string27.offset)|) (= |#t~string36.base| |old(#t~string36.base)|) (= |#t~string19.offset| |old(#t~string19.offset)|) (= |#t~string29.base| |old(#t~string29.base)|) (= |#t~string21.offset| |old(#t~string21.offset)|) (= ~systemActive~0 |old(~systemActive~0)|) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (= |#t~string60.offset| |old(#t~string60.offset)|) (= |#t~string42.base| |old(#t~string42.base)|) (= |#t~string50.offset| |old(#t~string50.offset)|) (= |#t~string23.offset| |old(#t~string23.offset)|) (= ~head~0.offset |old(~head~0.offset)|) (= |#t~string20.base| |old(#t~string20.base)|) (= |#t~string22.offset| |old(#t~string22.offset)|) (= |#t~string40.offset| |old(#t~string40.offset)|) (= |#t~string27.base| |old(#t~string27.base)|) (= |#t~string56.offset| |old(#t~string56.offset)|) (= |#t~string36.offset| |old(#t~string36.offset)|) (= |#t~string58.offset| |old(#t~string58.offset)|) (= |#t~string54.offset| |old(#t~string54.offset)|) (= |#t~string62.offset| |old(#t~string62.offset)|) (= |#t~string28.offset| |old(#t~string28.offset)|) (= |#t~string19.base| |old(#t~string19.base)|) (= |#t~string52.base| |old(#t~string52.base)|) (= |#t~string22.base| |old(#t~string22.base)|) (= |#t~string23.base| |old(#t~string23.base)|) (= |#t~string54.base| |old(#t~string54.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#t~string42.offset| |old(#t~string42.offset)|) (= |#t~string40.base| |old(#t~string40.base)|) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |#t~string38.offset| |old(#t~string38.offset)|) (= |#t~string18.offset| |old(#t~string18.offset)|) (= |#t~string48.offset| |old(#t~string48.offset)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string31.offset| |old(#t~string31.offset)|) (= |#t~string62.base| |old(#t~string62.base)|) (= |#t~string30.base| |old(#t~string30.base)|) (= |#t~string38.base| |old(#t~string38.base)|) (= |#t~string18.base| |old(#t~string18.base)|) (= |#t~string20.offset| |old(#t~string20.offset)|) (= |#t~string32.offset| |old(#t~string32.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |#t~string60.base| |old(#t~string60.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-08-21 13:59:13,853 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:59:13,853 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 569 576) no Hoare annotation was computed. [2020-08-21 13:59:13,854 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 569 576) no Hoare annotation was computed. [2020-08-21 13:59:13,854 INFO L268 CegarLoopResult]: For program point activatePumpENTRY(lines 569 576) no Hoare annotation was computed. [2020-08-21 13:59:13,854 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 483 491) the Hoare annotation is: true [2020-08-21 13:59:13,854 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 483 491) no Hoare annotation was computed. [2020-08-21 13:59:13,854 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 483 491) no Hoare annotation was computed. [2020-08-21 13:59:13,854 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:59:13,854 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-08-21 13:59:13,854 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:59:13,855 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 439 450) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))))) [2020-08-21 13:59:13,855 INFO L268 CegarLoopResult]: For program point L443-1(lines 439 450) no Hoare annotation was computed. [2020-08-21 13:59:13,855 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 439 450) no Hoare annotation was computed. [2020-08-21 13:59:13,855 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalENTRY(lines 451 459) no Hoare annotation was computed. [2020-08-21 13:59:13,855 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 451 459) no Hoare annotation was computed. [2020-08-21 13:59:13,855 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 451 459) no Hoare annotation was computed. [2020-08-21 13:59:13,855 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 512 535) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2020-08-21 13:59:13,856 INFO L264 CegarLoopResult]: At program point L525(line 525) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0)))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1))) [2020-08-21 13:59:13,856 INFO L264 CegarLoopResult]: At program point L523(lines 523 529) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2020-08-21 13:59:13,856 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 512 535) no Hoare annotation was computed. [2020-08-21 13:59:13,856 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 512 535) no Hoare annotation was computed. [2020-08-21 13:59:13,856 INFO L264 CegarLoopResult]: At program point L518(line 518) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0))) [2020-08-21 13:59:13,857 INFO L268 CegarLoopResult]: For program point L516(lines 515 534) no Hoare annotation was computed. [2020-08-21 13:59:13,857 INFO L268 CegarLoopResult]: For program point L768(lines 768 772) no Hoare annotation was computed. [2020-08-21 13:59:13,857 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 754 783) no Hoare annotation was computed. [2020-08-21 13:59:13,857 INFO L271 CegarLoopResult]: At program point L768-1(lines 768 772) the Hoare annotation is: true [2020-08-21 13:59:13,857 INFO L268 CegarLoopResult]: For program point L765(line 765) no Hoare annotation was computed. [2020-08-21 13:59:13,857 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 754 783) the Hoare annotation is: true [2020-08-21 13:59:13,857 INFO L271 CegarLoopResult]: At program point L764-2(lines 764 778) the Hoare annotation is: true [2020-08-21 13:59:13,858 INFO L271 CegarLoopResult]: At program point L760(line 760) the Hoare annotation is: true [2020-08-21 13:59:13,858 INFO L268 CegarLoopResult]: For program point L760-1(line 760) no Hoare annotation was computed. [2020-08-21 13:59:13,858 INFO L271 CegarLoopResult]: At program point L779(lines 754 783) the Hoare annotation is: true [2020-08-21 13:59:13,858 INFO L268 CegarLoopResult]: For program point L775(line 775) no Hoare annotation was computed. [2020-08-21 13:59:13,858 INFO L271 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 415 426) the Hoare annotation is: true [2020-08-21 13:59:13,858 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 415 426) no Hoare annotation was computed. [2020-08-21 13:59:13,858 INFO L268 CegarLoopResult]: For program point L419-1(lines 415 426) no Hoare annotation was computed. [2020-08-21 13:59:13,858 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 808 814) no Hoare annotation was computed. [2020-08-21 13:59:13,859 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 808 814) the Hoare annotation is: true [2020-08-21 13:59:13,859 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:59:13,859 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-08-21 13:59:13,859 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 13:59:13,859 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:59:13,859 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 427 438) no Hoare annotation was computed. [2020-08-21 13:59:13,859 INFO L268 CegarLoopResult]: For program point L431-1(lines 427 438) no Hoare annotation was computed. [2020-08-21 13:59:13,859 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 427 438) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1))) [2020-08-21 13:59:13,860 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 676 683) no Hoare annotation was computed. [2020-08-21 13:59:13,860 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 680) no Hoare annotation was computed. [2020-08-21 13:59:13,860 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 676 683) the Hoare annotation is: true [2020-08-21 13:59:13,860 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 676 683) no Hoare annotation was computed. [2020-08-21 13:59:13,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:59:13 BoogieIcfgContainer [2020-08-21 13:59:13,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:59:13,898 INFO L168 Benchmark]: Toolchain (without parser) took 31702.99 ms. Allocated memory was 140.5 MB in the beginning and 723.5 MB in the end (delta: 583.0 MB). Free memory was 102.3 MB in the beginning and 348.6 MB in the end (delta: -246.2 MB). Peak memory consumption was 567.9 MB. Max. memory is 7.1 GB. [2020-08-21 13:59:13,901 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 13:59:13,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.30 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 170.0 MB in the end (delta: -67.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-08-21 13:59:13,903 INFO L168 Benchmark]: Boogie Preprocessor took 107.48 ms. Allocated memory is still 203.4 MB. Free memory was 170.0 MB in the beginning and 166.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-08-21 13:59:13,903 INFO L168 Benchmark]: RCFGBuilder took 1321.08 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 193.6 MB in the end (delta: -27.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-08-21 13:59:13,905 INFO L168 Benchmark]: TraceAbstraction took 29648.75 ms. Allocated memory was 235.4 MB in the beginning and 723.5 MB in the end (delta: 488.1 MB). Free memory was 193.6 MB in the beginning and 348.6 MB in the end (delta: -155.0 MB). Peak memory consumption was 564.3 MB. Max. memory is 7.1 GB. [2020-08-21 13:59:13,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 620.30 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 170.0 MB in the end (delta: -67.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.48 ms. Allocated memory is still 203.4 MB. Free memory was 170.0 MB in the beginning and 166.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1321.08 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 193.6 MB in the end (delta: -27.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29648.75 ms. Allocated memory was 235.4 MB in the beginning and 723.5 MB in the end (delta: 488.1 MB). Free memory was 193.6 MB in the beginning and 348.6 MB in the end (delta: -155.0 MB). Peak memory consumption was 564.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 680]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: (!(\old(systemActive) == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0) - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: (((!(\old(systemActive) == 1) || !(\old(waterLevel) == 1)) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || !(\old(pumpRunning) == 0)) || ((\old(waterLevel) == waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 568 SDtfs, 1204 SDslu, 546 SDs, 0 SdLazy, 2809 SolverSat, 774 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=582occurred 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: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 229 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 618 PreInvPairs, 669 NumberOfFragments, 1010 HoareAnnotationTreeSize, 618 FomulaSimplifications, 67185 FormulaSimplificationTreeSizeReduction, 3.0s HoareSimplificationTime, 52 FomulaSimplificationsInter, 21174 FormulaSimplificationTreeSizeReductionInter, 9.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 105112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 16/23 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 correct! Received shutdown request...