/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:42:21,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:42:21,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:42:21,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:42:21,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:42:21,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:42:21,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:42:21,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:42:21,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:42:21,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:42:21,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:42:21,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:42:21,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:42:21,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:42:21,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:42:21,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:42:21,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:42:21,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:42:21,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:42:21,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:42:21,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:42:21,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:42:21,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:42:21,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:42:21,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 03:42:21,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 03:42:21,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 03:42:21,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 03:42:21,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 03:42:21,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 03:42:21,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 03:42:21,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 03:42:21,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 03:42:21,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 03:42:21,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 03:42:21,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 03:42:21,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 03:42:21,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 03:42:21,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:42:21,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:42:21,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:42:21,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 03:42:22,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:42:22,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:42:22,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:42:22,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:42:22,033 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:42:22,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:42:22,033 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:42:22,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:42:22,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:42:22,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:42:22,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:42:22,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:42:22,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:42:22,035 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:42:22,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:42:22,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:42:22,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:42:22,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:42:22,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:42:22,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:42:22,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:42:22,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:42:22,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:42:22,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:42:22,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:42:22,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:42:22,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:42:22,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:42:22,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:42:22,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-08-22 03:42:22,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:42:22,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:42:22,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:42:22,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:42:22,342 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:42:22,342 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-08-22 03:42:22,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f0c8255c/ea69324f9522482a9f49ce86c3cd3042/FLAGc1cd71dd0 [2020-08-22 03:42:22,895 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:42:22,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-08-22 03:42:22,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f0c8255c/ea69324f9522482a9f49ce86c3cd3042/FLAGc1cd71dd0 [2020-08-22 03:42:23,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f0c8255c/ea69324f9522482a9f49ce86c3cd3042 [2020-08-22 03:42:23,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:42:23,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:42:23,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:42:23,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:42:23,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:42:23,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e065585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23, skipping insertion in model container [2020-08-22 03:42:23,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:42:23,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:42:23,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:42:23,747 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:42:23,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:42:23,855 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:42:23,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23 WrapperNode [2020-08-22 03:42:23,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:42:23,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:42:23,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:42:23,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:42:23,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... [2020-08-22 03:42:23,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:42:23,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:42:23,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:42:23,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:42:23,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:42:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:42:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:42:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 03:42:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 03:42:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 03:42:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 03:42:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 03:42:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 03:42:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 03:42:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 03:42:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 03:42:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 03:42:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 03:42:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 03:42:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 03:42:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 03:42:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 03:42:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 03:42:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 03:42:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 03:42:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 03:42:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 03:42:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 03:42:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 03:42:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 03:42:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 03:42:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 03:42:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 03:42:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 03:42:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:42:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-22 03:42:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 03:42:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 03:42:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 03:42:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 03:42:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 03:42:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 03:42:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 03:42:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:42:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:42:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 03:42:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 03:42:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 03:42:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 03:42:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 03:42:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 03:42:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 03:42:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 03:42:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 03:42:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 03:42:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-22 03:42:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 03:42:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 03:42:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 03:42:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 03:42:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 03:42:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 03:42:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 03:42:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 03:42:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 03:42:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 03:42:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 03:42:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 03:42:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 03:42:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 03:42:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 03:42:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 03:42:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 03:42:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 03:42:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 03:42:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 03:42:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 03:42:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 03:42:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 03:42:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 03:42:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 03:42:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 03:42:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 03:42:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 03:42:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 03:42:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 03:42:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 03:42:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 03:42:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 03:42:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 03:42:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:42:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 03:42:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:42:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 03:42:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:42:25,130 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:42:25,130 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 03:42:25,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:42:25 BoogieIcfgContainer [2020-08-22 03:42:25,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:42:25,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:42:25,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:42:25,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:42:25,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:42:23" (1/3) ... [2020-08-22 03:42:25,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540c5f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:42:25, skipping insertion in model container [2020-08-22 03:42:25,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:42:23" (2/3) ... [2020-08-22 03:42:25,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540c5f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:42:25, skipping insertion in model container [2020-08-22 03:42:25,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:42:25" (3/3) ... [2020-08-22 03:42:25,145 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product21.cil.c [2020-08-22 03:42:25,155 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:42:25,162 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:42:25,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:42:25,200 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:42:25,201 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:42:25,201 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:42:25,201 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:42:25,201 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:42:25,201 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:42:25,202 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:42:25,202 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:42:25,224 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-08-22 03:42:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 03:42:25,234 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:42:25,235 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] [2020-08-22 03:42:25,235 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:42:25,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:42:25,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1715391972, now seen corresponding path program 1 times [2020-08-22 03:42:25,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:42:25,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662087282] [2020-08-22 03:42:25,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:42:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,821 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 03:42:25,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:42:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:42:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:42:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:42:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:42:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:42:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 03:42:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:25,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:42:25,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662087282] [2020-08-22 03:42:25,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:42:25,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 03:42:25,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450424805] [2020-08-22 03:42:25,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 03:42:25,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:42:25,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 03:42:25,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 03:42:25,954 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 3 states. [2020-08-22 03:42:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:42:26,977 INFO L93 Difference]: Finished difference Result 285 states and 374 transitions. [2020-08-22 03:42:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 03:42:26,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-22 03:42:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:42:26,995 INFO L225 Difference]: With dead ends: 285 [2020-08-22 03:42:26,995 INFO L226 Difference]: Without dead ends: 154 [2020-08-22 03:42:27,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 03:42:27,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-08-22 03:42:27,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 122. [2020-08-22 03:42:27,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-08-22 03:42:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-08-22 03:42:27,087 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 46 [2020-08-22 03:42:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:42:27,088 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-08-22 03:42:27,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 03:42:27,088 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-08-22 03:42:27,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 03:42:27,092 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:42:27,092 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] [2020-08-22 03:42:27,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:42:27,092 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:42:27,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:42:27,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1451016252, now seen corresponding path program 1 times [2020-08-22 03:42:27,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:42:27,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617794738] [2020-08-22 03:42:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:42:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,466 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 03:42:27,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:42:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:42:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:42:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:42:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:42:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:42:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 03:42:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:42:27,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617794738] [2020-08-22 03:42:27,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:42:27,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 03:42:27,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151476444] [2020-08-22 03:42:27,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 03:42:27,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:42:27,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 03:42:27,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 03:42:27,508 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 4 states. [2020-08-22 03:42:27,855 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:42:28,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:42:28,583 INFO L93 Difference]: Finished difference Result 218 states and 265 transitions. [2020-08-22 03:42:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 03:42:28,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-22 03:42:28,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:42:28,586 INFO L225 Difference]: With dead ends: 218 [2020-08-22 03:42:28,586 INFO L226 Difference]: Without dead ends: 138 [2020-08-22 03:42:28,588 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 [2020-08-22 03:42:28,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-08-22 03:42:28,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 113. [2020-08-22 03:42:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-08-22 03:42:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2020-08-22 03:42:28,620 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 47 [2020-08-22 03:42:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:42:28,621 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2020-08-22 03:42:28,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 03:42:28,621 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2020-08-22 03:42:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 03:42:28,623 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:42:28,623 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] [2020-08-22 03:42:28,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:42:28,624 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:42:28,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:42:28,624 INFO L82 PathProgramCache]: Analyzing trace with hash 880823031, now seen corresponding path program 1 times [2020-08-22 03:42:28,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:42:28,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574841006] [2020-08-22 03:42:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:42:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:28,981 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 03:42:28,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:42:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:42:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:42:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:29,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:42:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:29,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:42:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 03:42:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 03:42:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:42:29,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574841006] [2020-08-22 03:42:29,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:42:29,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 03:42:29,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775072186] [2020-08-22 03:42:29,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 03:42:29,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:42:29,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 03:42:29,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 03:42:29,091 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 8 states. [2020-08-22 03:42:29,415 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 03:42:29,684 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:29,945 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:30,162 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:31,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:42:31,147 INFO L93 Difference]: Finished difference Result 227 states and 279 transitions. [2020-08-22 03:42:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 03:42:31,148 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-22 03:42:31,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:42:31,151 INFO L225 Difference]: With dead ends: 227 [2020-08-22 03:42:31,151 INFO L226 Difference]: Without dead ends: 138 [2020-08-22 03:42:31,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 03:42:31,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-08-22 03:42:31,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 113. [2020-08-22 03:42:31,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-08-22 03:42:31,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2020-08-22 03:42:31,184 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 51 [2020-08-22 03:42:31,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:42:31,184 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2020-08-22 03:42:31,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 03:42:31,185 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2020-08-22 03:42:31,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 03:42:31,187 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:42:31,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:42:31,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:42:31,188 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:42:31,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:42:31,188 INFO L82 PathProgramCache]: Analyzing trace with hash 2056665484, now seen corresponding path program 1 times [2020-08-22 03:42:31,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:42:31,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130672505] [2020-08-22 03:42:31,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:42:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,502 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 03:42:31,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:42:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:42:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:42:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:42:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:42:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-22 03:42:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 03:42:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 03:42:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:42:31,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130672505] [2020-08-22 03:42:31,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:42:31,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 03:42:31,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395870895] [2020-08-22 03:42:31,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 03:42:31,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:42:31,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 03:42:31,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 03:42:31,624 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 12 states. [2020-08-22 03:42:32,032 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 03:42:32,329 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:32,569 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:32,798 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:33,297 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:42:34,451 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:34,799 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:42:35,058 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:42:35,311 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:42:35,559 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 03:42:35,861 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:42:36,131 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:42:36,463 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 03:42:37,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:42:37,445 INFO L93 Difference]: Finished difference Result 438 states and 579 transitions. [2020-08-22 03:42:37,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-22 03:42:37,446 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2020-08-22 03:42:37,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:42:37,451 INFO L225 Difference]: With dead ends: 438 [2020-08-22 03:42:37,452 INFO L226 Difference]: Without dead ends: 349 [2020-08-22 03:42:37,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-22 03:42:37,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-08-22 03:42:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 280. [2020-08-22 03:42:37,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-22 03:42:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 334 transitions. [2020-08-22 03:42:37,525 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 334 transitions. Word has length 64 [2020-08-22 03:42:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:42:37,526 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 334 transitions. [2020-08-22 03:42:37,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 03:42:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 334 transitions. [2020-08-22 03:42:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-08-22 03:42:37,530 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:42:37,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:42:37,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:42:37,530 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:42:37,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:42:37,531 INFO L82 PathProgramCache]: Analyzing trace with hash -2113576122, now seen corresponding path program 1 times [2020-08-22 03:42:37,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:42:37,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061315103] [2020-08-22 03:42:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:42:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,788 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 03:42:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:42:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:42:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:42:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:42:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:42:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 03:42:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 03:42:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 03:42:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-22 03:42:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:37,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:42:37,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061315103] [2020-08-22 03:42:37,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:42:37,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 03:42:37,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809813425] [2020-08-22 03:42:37,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 03:42:37,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:42:37,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 03:42:37,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 03:42:37,890 INFO L87 Difference]: Start difference. First operand 280 states and 334 transitions. Second operand 6 states. [2020-08-22 03:42:38,176 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 03:42:38,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:42:38,666 INFO L93 Difference]: Finished difference Result 434 states and 537 transitions. [2020-08-22 03:42:38,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 03:42:38,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-08-22 03:42:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:42:38,671 INFO L225 Difference]: With dead ends: 434 [2020-08-22 03:42:38,671 INFO L226 Difference]: Without dead ends: 178 [2020-08-22 03:42:38,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:42:38,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-08-22 03:42:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 166. [2020-08-22 03:42:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-08-22 03:42:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 183 transitions. [2020-08-22 03:42:38,711 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 183 transitions. Word has length 68 [2020-08-22 03:42:38,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:42:38,711 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 183 transitions. [2020-08-22 03:42:38,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 03:42:38,712 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 183 transitions. [2020-08-22 03:42:38,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-08-22 03:42:38,715 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:42:38,715 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 03:42:38,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 03:42:38,715 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:42:38,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:42:38,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1672476349, now seen corresponding path program 1 times [2020-08-22 03:42:38,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:42:38,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793974524] [2020-08-22 03:42:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:42:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,015 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 03:42:39,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:42:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:42:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:42:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:42:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:42:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 03:42:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 03:42:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:42:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:42:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-22 03:42:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 03:42:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:42:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 03:42:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 03:42:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:42:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-22 03:42:39,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793974524] [2020-08-22 03:42:39,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:42:39,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 03:42:39,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540873916] [2020-08-22 03:42:39,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 03:42:39,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:42:39,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 03:42:39,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-22 03:42:39,178 INFO L87 Difference]: Start difference. First operand 166 states and 183 transitions. Second operand 10 states. [2020-08-22 03:42:39,772 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-22 03:42:40,280 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 03:42:40,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:42:40,824 INFO L93 Difference]: Finished difference Result 223 states and 254 transitions. [2020-08-22 03:42:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:42:40,824 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 108 [2020-08-22 03:42:40,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:42:40,825 INFO L225 Difference]: With dead ends: 223 [2020-08-22 03:42:40,826 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 03:42:40,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-08-22 03:42:40,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 03:42:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 03:42:40,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 03:42:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 03:42:40,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2020-08-22 03:42:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:42:40,828 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 03:42:40,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 03:42:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 03:42:40,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 03:42:40,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 03:42:40,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 03:42:41,377 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 25 [2020-08-22 03:42:43,305 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-22 03:42:43,657 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-22 03:42:44,262 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-22 03:42:44,736 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 22 [2020-08-22 03:42:44,948 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-22 03:42:45,623 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-22 03:42:45,801 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-22 03:42:46,017 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 03:42:46,365 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-22 03:42:46,582 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-22 03:42:47,171 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 24 [2020-08-22 03:42:47,852 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-22 03:42:48,439 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 21 [2020-08-22 03:42:49,093 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 19 [2020-08-22 03:42:49,266 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-22 03:42:49,801 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 22 [2020-08-22 03:42:50,201 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-22 03:42:50,572 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-22 03:42:50,987 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-22 03:42:51,326 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-22 03:42:51,861 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-08-22 03:42:52,216 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-08-22 03:42:52,251 INFO L268 CegarLoopResult]: For program point L383(line 383) no Hoare annotation was computed. [2020-08-22 03:42:52,251 INFO L268 CegarLoopResult]: For program point L382-2(lines 382 403) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point L404(lines 381 405) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 357 412) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 357 412) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point L388(lines 388 392) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point L388-1(lines 388 392) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 357 412) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point L445(lines 445 449) no Hoare annotation was computed. [2020-08-22 03:42:52,252 INFO L268 CegarLoopResult]: For program point L445-1(lines 445 449) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 413 472) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point L439-2(lines 439 464) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point L465(lines 438 466) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 413 472) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 413 472) no Hoare annotation was computed. [2020-08-22 03:42:52,253 INFO L268 CegarLoopResult]: For program point L458-1(line 458) no Hoare annotation was computed. [2020-08-22 03:42:52,254 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 692 698) the Hoare annotation is: true [2020-08-22 03:42:52,255 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 692 698) no Hoare annotation was computed. [2020-08-22 03:42:52,255 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 699 707) no Hoare annotation was computed. [2020-08-22 03:42:52,255 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 699 707) the Hoare annotation is: true [2020-08-22 03:42:52,255 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 699 707) no Hoare annotation was computed. [2020-08-22 03:42:52,255 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 806 830) the Hoare annotation is: true [2020-08-22 03:42:52,256 INFO L264 CegarLoopResult]: At program point L820(line 820) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,256 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 806 830) no Hoare annotation was computed. [2020-08-22 03:42:52,256 INFO L268 CegarLoopResult]: For program point L818(lines 818 824) no Hoare annotation was computed. [2020-08-22 03:42:52,256 INFO L264 CegarLoopResult]: At program point L816(line 816) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,257 INFO L268 CegarLoopResult]: For program point L816-1(line 816) no Hoare annotation was computed. [2020-08-22 03:42:52,257 INFO L268 CegarLoopResult]: For program point L814(lines 814 827) no Hoare annotation was computed. [2020-08-22 03:42:52,257 INFO L268 CegarLoopResult]: For program point L814-1(lines 806 830) no Hoare annotation was computed. [2020-08-22 03:42:52,257 INFO L271 CegarLoopResult]: At program point L812(line 812) the Hoare annotation is: true [2020-08-22 03:42:52,257 INFO L268 CegarLoopResult]: For program point L812-1(line 812) no Hoare annotation was computed. [2020-08-22 03:42:52,257 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 781 803) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-22 03:42:52,257 INFO L264 CegarLoopResult]: At program point L793(line 793) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~7 ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 03:42:52,257 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 781 803) no Hoare annotation was computed. [2020-08-22 03:42:52,258 INFO L264 CegarLoopResult]: At program point L793-1(line 793) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~7 ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 03:42:52,258 INFO L268 CegarLoopResult]: For program point L791(lines 791 798) no Hoare annotation was computed. [2020-08-22 03:42:52,258 INFO L268 CegarLoopResult]: For program point L791-1(lines 791 798) no Hoare annotation was computed. [2020-08-22 03:42:52,258 INFO L268 CegarLoopResult]: For program point L789(line 789) no Hoare annotation was computed. [2020-08-22 03:42:52,258 INFO L264 CegarLoopResult]: At program point L788(line 788) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-22 03:42:52,258 INFO L264 CegarLoopResult]: At program point L787(line 787) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-22 03:42:52,259 INFO L264 CegarLoopResult]: At program point L787-1(line 787) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-22 03:42:52,260 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 781 803) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 740 763) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 740 763) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 740 763) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point L758(line 758) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point L757(line 757) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point L756(line 756) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point L755(line 755) no Hoare annotation was computed. [2020-08-22 03:42:52,261 INFO L268 CegarLoopResult]: For program point L754(line 754) no Hoare annotation was computed. [2020-08-22 03:42:52,262 INFO L268 CegarLoopResult]: For program point L753(line 753) no Hoare annotation was computed. [2020-08-22 03:42:52,262 INFO L268 CegarLoopResult]: For program point L752(line 752) no Hoare annotation was computed. [2020-08-22 03:42:52,262 INFO L268 CegarLoopResult]: For program point L751(line 751) no Hoare annotation was computed. [2020-08-22 03:42:52,262 INFO L268 CegarLoopResult]: For program point L750(line 750) no Hoare annotation was computed. [2020-08-22 03:42:52,262 INFO L268 CegarLoopResult]: For program point L749(line 749) no Hoare annotation was computed. [2020-08-22 03:42:52,262 INFO L268 CegarLoopResult]: For program point L748(line 748) no Hoare annotation was computed. [2020-08-22 03:42:52,262 INFO L268 CegarLoopResult]: For program point L747(line 747) no Hoare annotation was computed. [2020-08-22 03:42:52,263 INFO L268 CegarLoopResult]: For program point L746(line 746) no Hoare annotation was computed. [2020-08-22 03:42:52,263 INFO L268 CegarLoopResult]: For program point L745(line 745) no Hoare annotation was computed. [2020-08-22 03:42:52,263 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 163 171) no Hoare annotation was computed. [2020-08-22 03:42:52,263 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 163 171) the Hoare annotation is: true [2020-08-22 03:42:52,263 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 163 171) no Hoare annotation was computed. [2020-08-22 03:42:52,263 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 208 226) the Hoare annotation is: true [2020-08-22 03:42:52,263 INFO L268 CegarLoopResult]: For program point L217(lines 217 221) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L271 CegarLoopResult]: At program point L215(line 215) the Hoare annotation is: true [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point L217-2(lines 217 221) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point L215-1(line 215) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 208 226) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 208 226) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point L191(lines 191 199) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point L191-2(lines 191 199) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point L179(lines 179 187) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point L179-2(lines 179 187) no Hoare annotation was computed. [2020-08-22 03:42:52,264 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 172 207) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point L202-1(line 202) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 172 207) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 172 207) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 685 691) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 685 691) the Hoare annotation is: true [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 311 356) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 311 356) no Hoare annotation was computed. [2020-08-22 03:42:52,265 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 311 356) no Hoare annotation was computed. [2020-08-22 03:42:52,266 INFO L268 CegarLoopResult]: For program point L638(lines 638 658) no Hoare annotation was computed. [2020-08-22 03:42:52,266 INFO L268 CegarLoopResult]: For program point L638-1(lines 638 658) no Hoare annotation was computed. [2020-08-22 03:42:52,266 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 624 669) no Hoare annotation was computed. [2020-08-22 03:42:52,266 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 624 669) no Hoare annotation was computed. [2020-08-22 03:42:52,266 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 624 669) no Hoare annotation was computed. [2020-08-22 03:42:52,266 INFO L268 CegarLoopResult]: For program point L644(lines 644 651) no Hoare annotation was computed. [2020-08-22 03:42:52,266 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 771 780) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-22 03:42:52,266 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 771 780) no Hoare annotation was computed. [2020-08-22 03:42:52,267 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 771 780) no Hoare annotation was computed. [2020-08-22 03:42:52,267 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 152 162) the Hoare annotation is: true [2020-08-22 03:42:52,267 INFO L271 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: true [2020-08-22 03:42:52,267 INFO L268 CegarLoopResult]: For program point L157-1(line 157) no Hoare annotation was computed. [2020-08-22 03:42:52,267 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 152 162) no Hoare annotation was computed. [2020-08-22 03:42:52,267 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 152 162) no Hoare annotation was computed. [2020-08-22 03:42:52,267 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 144 151) the Hoare annotation is: true [2020-08-22 03:42:52,267 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 144 151) no Hoare annotation was computed. [2020-08-22 03:42:52,267 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 144 151) no Hoare annotation was computed. [2020-08-22 03:42:52,268 INFO L268 CegarLoopResult]: For program point L130-1(lines 111 135) no Hoare annotation was computed. [2020-08-22 03:42:52,268 INFO L264 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,268 INFO L264 CegarLoopResult]: At program point L121(line 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,269 INFO L268 CegarLoopResult]: For program point L119(lines 119 127) no Hoare annotation was computed. [2020-08-22 03:42:52,269 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 111 135) no Hoare annotation was computed. [2020-08-22 03:42:52,269 INFO L264 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,270 INFO L268 CegarLoopResult]: For program point L117-1(line 117) no Hoare annotation was computed. [2020-08-22 03:42:52,270 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 111 135) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-22 03:42:52,270 INFO L268 CegarLoopResult]: For program point L115(lines 115 132) no Hoare annotation was computed. [2020-08-22 03:42:52,270 INFO L264 CegarLoopResult]: At program point L130(line 130) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-22 03:42:52,270 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 77 83) no Hoare annotation was computed. [2020-08-22 03:42:52,270 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 77 83) the Hoare annotation is: true [2020-08-22 03:42:52,270 INFO L264 CegarLoopResult]: At program point testENTRY(lines 231 294) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-22 03:42:52,271 INFO L264 CegarLoopResult]: At program point L287(lines 240 288) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 03:42:52,271 INFO L268 CegarLoopResult]: For program point testFINAL(lines 231 294) no Hoare annotation was computed. [2020-08-22 03:42:52,271 INFO L268 CegarLoopResult]: For program point L277(lines 277 281) no Hoare annotation was computed. [2020-08-22 03:42:52,271 INFO L264 CegarLoopResult]: At program point L277-2(lines 271 282) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 03:42:52,271 INFO L268 CegarLoopResult]: For program point L242(lines 241 286) no Hoare annotation was computed. [2020-08-22 03:42:52,271 INFO L268 CegarLoopResult]: For program point L271(lines 271 282) no Hoare annotation was computed. [2020-08-22 03:42:52,272 INFO L264 CegarLoopResult]: At program point L263(line 263) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 03:42:52,272 INFO L268 CegarLoopResult]: For program point L261(lines 261 267) no Hoare annotation was computed. [2020-08-22 03:42:52,272 INFO L268 CegarLoopResult]: For program point L261-1(lines 261 267) no Hoare annotation was computed. [2020-08-22 03:42:52,272 INFO L264 CegarLoopResult]: At program point L253(line 253) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 03:42:52,273 INFO L264 CegarLoopResult]: At program point L284(lines 241 286) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point L251(lines 251 257) no Hoare annotation was computed. [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point L251-1(lines 251 257) no Hoare annotation was computed. [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point L243(lines 243 247) no Hoare annotation was computed. [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point testEXIT(lines 231 294) no Hoare annotation was computed. [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 578 623) no Hoare annotation was computed. [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point L598(lines 598 605) no Hoare annotation was computed. [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 578 623) no Hoare annotation was computed. [2020-08-22 03:42:52,273 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 578 623) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point L592(lines 592 612) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point L592-1(lines 592 612) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 911 919) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 911 919) the Hoare annotation is: true [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 911 919) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 879 901) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point L887(lines 887 895) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 879 901) no Hoare annotation was computed. [2020-08-22 03:42:52,274 INFO L268 CegarLoopResult]: For program point L887-2(lines 887 895) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 879 901) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point L545(lines 523 546) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 475 577) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point L504(lines 504 520) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point L564(lines 564 571) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point L525(lines 524 544) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point L556-1(line 556) no Hoare annotation was computed. [2020-08-22 03:42:52,275 INFO L268 CegarLoopResult]: For program point L521(lines 521 562) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 475 577) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point L540-1(line 540) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point L499(lines 499 503) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point L563(lines 563 574) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 475 577) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point L526(lines 526 530) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point L524-2(lines 524 544) no Hoare annotation was computed. [2020-08-22 03:42:52,276 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 675 684) no Hoare annotation was computed. [2020-08-22 03:42:52,277 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 675 684) no Hoare annotation was computed. [2020-08-22 03:42:52,277 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 675 684) no Hoare annotation was computed. [2020-08-22 03:42:52,277 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:42:52,277 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string47.offset| |old(#t~string47.offset)|) (= |old(#length)| |#length|) (= |#t~string72.base| |old(#t~string72.base)|) (= |#t~string12.offset| |old(#t~string12.offset)|) (= |#t~string56.base| |old(#t~string56.base)|) (= |#t~string70.base| |old(#t~string70.base)|) (= |old(#valid)| |#valid|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |#t~string66.offset| |old(#t~string66.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string14.offset| |old(#t~string14.offset)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string55.base| |old(#t~string55.base)|) (= |#t~string52.offset| |old(#t~string52.offset)|) (= |#t~string46.base| |old(#t~string46.base)|) (= |#t~string64.base| |old(#t~string64.base)|) (= |#t~string53.base| |old(#t~string53.base)|) (= ~systemActive~0 |old(~systemActive~0)|) (= |#t~string51.base| |old(#t~string51.base)|) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (= |#t~string42.base| |old(#t~string42.base)|) (= |#t~string51.offset| |old(#t~string51.offset)|) (= |#t~string53.offset| |old(#t~string53.offset)|) (= ~head~0.offset |old(~head~0.offset)|) (= |#t~string16.offset| |old(#t~string16.offset)|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string66.base| |old(#t~string66.base)|) (= |#t~string56.offset| |old(#t~string56.offset)|) (= |#t~string12.base| |old(#t~string12.base)|) (= |#t~string68.offset| |old(#t~string68.offset)|) (= |#t~string54.offset| |old(#t~string54.offset)|) (= |#t~string64.offset| |old(#t~string64.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#t~string52.base| |old(#t~string52.base)|) (= |#t~string43.offset| |old(#t~string43.offset)|) (= |#t~string10.offset| |old(#t~string10.offset)|) (= |#t~string10.base| |old(#t~string10.base)|) (= |#t~string45.base| |old(#t~string45.base)|) (= |#t~string68.base| |old(#t~string68.base)|) (= |#t~string54.base| |old(#t~string54.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#t~string42.offset| |old(#t~string42.offset)|) (= |#t~string45.offset| |old(#t~string45.offset)|) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |#t~string18.offset| |old(#t~string18.offset)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string43.base| |old(#t~string43.base)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string14.base| |old(#t~string14.base)|) (= |#t~string70.offset| |old(#t~string70.offset)|) (= |#t~string46.offset| |old(#t~string46.offset)|) (= |#t~string16.base| |old(#t~string16.base)|) (= |#t~string18.base| |old(#t~string18.base)|) (= |#t~string55.offset| |old(#t~string55.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |#t~string72.offset| |old(#t~string72.offset)|) (= |#t~string47.base| |old(#t~string47.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-08-22 03:42:52,277 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:42:52,277 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 136 143) no Hoare annotation was computed. [2020-08-22 03:42:52,278 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 136 143) no Hoare annotation was computed. [2020-08-22 03:42:52,278 INFO L268 CegarLoopResult]: For program point activatePumpENTRY(lines 136 143) no Hoare annotation was computed. [2020-08-22 03:42:52,279 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 902 910) the Hoare annotation is: true [2020-08-22 03:42:52,279 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 902 910) no Hoare annotation was computed. [2020-08-22 03:42:52,279 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 902 910) no Hoare annotation was computed. [2020-08-22 03:42:52,279 INFO L268 CegarLoopResult]: For program point L862-1(lines 858 869) no Hoare annotation was computed. [2020-08-22 03:42:52,279 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 858 869) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2020-08-22 03:42:52,279 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 858 869) no Hoare annotation was computed. [2020-08-22 03:42:52,279 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:42:52,280 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-08-22 03:42:52,280 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:42:52,280 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 870 878) the Hoare annotation is: true [2020-08-22 03:42:52,280 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 870 878) no Hoare annotation was computed. [2020-08-22 03:42:52,280 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 870 878) no Hoare annotation was computed. [2020-08-22 03:42:52,281 INFO L264 CegarLoopResult]: At program point L64(lines 64 70) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2020-08-22 03:42:52,281 INFO L264 CegarLoopResult]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (not (= 1 ~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))) [2020-08-22 03:42:52,281 INFO L268 CegarLoopResult]: For program point L57(lines 56 75) no Hoare annotation was computed. [2020-08-22 03:42:52,281 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 53 76) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2020-08-22 03:42:52,281 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 53 76) no Hoare annotation was computed. [2020-08-22 03:42:52,281 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 53 76) no Hoare annotation was computed. [2020-08-22 03:42:52,282 INFO L264 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2020-08-22 03:42:52,282 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 710 739) no Hoare annotation was computed. [2020-08-22 03:42:52,283 INFO L271 CegarLoopResult]: At program point L735(lines 710 739) the Hoare annotation is: true [2020-08-22 03:42:52,283 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 710 739) the Hoare annotation is: true [2020-08-22 03:42:52,283 INFO L268 CegarLoopResult]: For program point L731(line 731) no Hoare annotation was computed. [2020-08-22 03:42:52,283 INFO L268 CegarLoopResult]: For program point L724(lines 724 728) no Hoare annotation was computed. [2020-08-22 03:42:52,283 INFO L271 CegarLoopResult]: At program point L724-1(lines 724 728) the Hoare annotation is: true [2020-08-22 03:42:52,283 INFO L268 CegarLoopResult]: For program point L721(line 721) no Hoare annotation was computed. [2020-08-22 03:42:52,283 INFO L271 CegarLoopResult]: At program point L720-2(lines 720 734) the Hoare annotation is: true [2020-08-22 03:42:52,284 INFO L271 CegarLoopResult]: At program point L716(line 716) the Hoare annotation is: true [2020-08-22 03:42:52,284 INFO L268 CegarLoopResult]: For program point L716-1(line 716) no Hoare annotation was computed. [2020-08-22 03:42:52,284 INFO L271 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 834 845) the Hoare annotation is: true [2020-08-22 03:42:52,285 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 834 845) no Hoare annotation was computed. [2020-08-22 03:42:52,285 INFO L268 CegarLoopResult]: For program point L838-1(lines 834 845) no Hoare annotation was computed. [2020-08-22 03:42:52,285 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 764 770) no Hoare annotation was computed. [2020-08-22 03:42:52,285 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 764 770) the Hoare annotation is: true [2020-08-22 03:42:52,285 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:42:52,286 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-08-22 03:42:52,286 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 03:42:52,286 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:42:52,286 INFO L268 CegarLoopResult]: For program point L850-1(lines 846 857) no Hoare annotation was computed. [2020-08-22 03:42:52,286 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 846 857) no Hoare annotation was computed. [2020-08-22 03:42:52,286 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 846 857) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2))) [2020-08-22 03:42:52,287 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 296 303) no Hoare annotation was computed. [2020-08-22 03:42:52,287 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 300) no Hoare annotation was computed. [2020-08-22 03:42:52,288 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 296 303) the Hoare annotation is: true [2020-08-22 03:42:52,288 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 296 303) no Hoare annotation was computed. [2020-08-22 03:42:52,288 INFO L264 CegarLoopResult]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,288 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 85 109) no Hoare annotation was computed. [2020-08-22 03:42:52,288 INFO L268 CegarLoopResult]: For program point L93(lines 93 101) no Hoare annotation was computed. [2020-08-22 03:42:52,288 INFO L264 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,288 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 85 109) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-22 03:42:52,289 INFO L268 CegarLoopResult]: For program point L91-1(line 91) no Hoare annotation was computed. [2020-08-22 03:42:52,289 INFO L268 CegarLoopResult]: For program point L89(lines 89 106) no Hoare annotation was computed. [2020-08-22 03:42:52,289 INFO L264 CegarLoopResult]: At program point L104(line 104) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-22 03:42:52,289 INFO L268 CegarLoopResult]: For program point L104-1(lines 85 109) no Hoare annotation was computed. [2020-08-22 03:42:52,289 INFO L264 CegarLoopResult]: At program point L99(line 99) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 03:42:52,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:42:52 BoogieIcfgContainer [2020-08-22 03:42:52,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:42:52,319 INFO L168 Benchmark]: Toolchain (without parser) took 29125.58 ms. Allocated memory was 147.3 MB in the beginning and 617.1 MB in the end (delta: 469.8 MB). Free memory was 102.1 MB in the beginning and 280.1 MB in the end (delta: -178.0 MB). Peak memory consumption was 469.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:42:52,320 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 03:42:52,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.22 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.9 MB in the beginning and 172.7 MB in the end (delta: -70.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-08-22 03:42:52,329 INFO L168 Benchmark]: Boogie Preprocessor took 129.20 ms. Allocated memory is still 203.4 MB. Free memory was 172.7 MB in the beginning and 168.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-22 03:42:52,329 INFO L168 Benchmark]: RCFGBuilder took 1151.98 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 168.6 MB in the beginning and 198.0 MB in the end (delta: -29.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-08-22 03:42:52,330 INFO L168 Benchmark]: TraceAbstraction took 27175.03 ms. Allocated memory was 235.9 MB in the beginning and 617.1 MB in the end (delta: 381.2 MB). Free memory was 198.0 MB in the beginning and 280.1 MB in the end (delta: -82.0 MB). Peak memory consumption was 476.4 MB. Max. memory is 7.1 GB. [2020-08-22 03:42:52,339 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.22 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.9 MB in the beginning and 172.7 MB in the end (delta: -70.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.20 ms. Allocated memory is still 203.4 MB. Free memory was 172.7 MB in the beginning and 168.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1151.98 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 168.6 MB in the beginning and 198.0 MB in the end (delta: -29.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27175.03 ms. Allocated memory was 235.9 MB in the beginning and 617.1 MB in the end (delta: 381.2 MB). Free memory was 198.0 MB in the beginning and 280.1 MB in the end (delta: -82.0 MB). Peak memory consumption was 476.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 300]: 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: 241]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 1) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((\old(waterLevel) == waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 720]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: (!(systemActive == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.6s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 572 SDtfs, 1130 SDslu, 397 SDs, 0 SdLazy, 2549 SolverSat, 707 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 163 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 412 PreInvPairs, 432 NumberOfFragments, 1117 HoareAnnotationTreeSize, 412 FomulaSimplifications, 41818 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 57 FomulaSimplificationsInter, 9677 FormulaSimplificationTreeSizeReductionInter, 9.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 118871 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 29/36 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...