/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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 02:53:48,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 02:53:48,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 02:53:48,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 02:53:48,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 02:53:48,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 02:53:48,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 02:53:48,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 02:53:48,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 02:53:48,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 02:53:48,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 02:53:48,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 02:53:48,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 02:53:48,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 02:53:48,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 02:53:48,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 02:53:48,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 02:53:48,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 02:53:48,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 02:53:48,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 02:53:48,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 02:53:48,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 02:53:48,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 02:53:48,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 02:53:48,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 02:53:48,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 02:53:48,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 02:53:48,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 02:53:48,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 02:53:49,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 02:53:49,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 02:53:49,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 02:53:49,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 02:53:49,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 02:53:49,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 02:53:49,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 02:53:49,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 02:53:49,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 02:53:49,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:53:49,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:53:49,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:53:49,009 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 02:53:49,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:53:49,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:53:49,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:53:49,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:53:49,048 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:53:49,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:53:49,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 02:53:49,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:53:49,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 02:53:49,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:53:49,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:53:49,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:53:49,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:53:49,052 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 02:53:49,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:53:49,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:53:49,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:53:49,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:53:49,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:53:49,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:53:49,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:53:49,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:53:49,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:53:49,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:53:49,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:53:49,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:53:49,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:53:49,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:53:49,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:53:49,055 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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-08-22 02:53:49,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:53:49,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:53:49,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:53:49,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:53:49,416 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:53:49,417 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c [2020-08-22 02:53:49,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c210cf1e2/e71c1bf4533148b98e24664041710b3f/FLAG8d3fd23b6 [2020-08-22 02:53:50,026 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:53:50,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c [2020-08-22 02:53:50,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c210cf1e2/e71c1bf4533148b98e24664041710b3f/FLAG8d3fd23b6 [2020-08-22 02:53:50,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c210cf1e2/e71c1bf4533148b98e24664041710b3f [2020-08-22 02:53:50,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:53:50,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:53:50,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:53:50,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:53:50,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:53:50,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:53:50" (1/1) ... [2020-08-22 02:53:50,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a47163c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:50, skipping insertion in model container [2020-08-22 02:53:50,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:53:50" (1/1) ... [2020-08-22 02:53:50,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:53:50,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:53:50,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:53:50,888 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:53:50,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:53:51,034 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:53:51,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51 WrapperNode [2020-08-22 02:53:51,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:53:51,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:53:51,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:53:51,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:53:51,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... [2020-08-22 02:53:51,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... [2020-08-22 02:53:51,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... [2020-08-22 02:53:51,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... [2020-08-22 02:53:51,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... [2020-08-22 02:53:51,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... [2020-08-22 02:53:51,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... [2020-08-22 02:53:51,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:53:51,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:53:51,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:53:51,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:53:51,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:53:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:53:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:53:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 02:53:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 02:53:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 02:53:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 02:53:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 02:53:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 02:53:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 02:53:51,245 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 02:53:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 02:53:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 02:53:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 02:53:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 02:53:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 02:53:51,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 02:53:51,248 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 02:53:51,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 02:53:51,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 02:53:51,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 02:53:51,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 02:53:51,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 02:53:51,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 02:53:51,249 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 02:53:51,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 02:53:51,250 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 02:53:51,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 02:53:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 02:53:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 02:53:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 02:53:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 02:53:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 02:53:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:53:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 02:53:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 02:53:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 02:53:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 02:53:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-22 02:53:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:53:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 02:53:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 02:53:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 02:53:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 02:53:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 02:53:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 02:53:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 02:53:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 02:53:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 02:53:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 02:53:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 02:53:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 02:53:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 02:53:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 02:53:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 02:53:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 02:53:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 02:53:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 02:53:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 02:53:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 02:53:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 02:53:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 02:53:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 02:53:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 02:53:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 02:53:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 02:53:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 02:53:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 02:53:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 02:53:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 02:53:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 02:53:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 02:53:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-22 02:53:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 02:53:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 02:53:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 02:53:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 02:53:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 02:53:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 02:53:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 02:53:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 02:53:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 02:53:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 02:53:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 02:53:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 02:53:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 02:53:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:53:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 02:53:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:53:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 02:53:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:53:52,297 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:53:52,297 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 02:53:52,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:53:52 BoogieIcfgContainer [2020-08-22 02:53:52,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:53:52,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:53:52,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:53:52,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:53:52,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:53:50" (1/3) ... [2020-08-22 02:53:52,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714d63e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:53:52, skipping insertion in model container [2020-08-22 02:53:52,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:51" (2/3) ... [2020-08-22 02:53:52,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714d63e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:53:52, skipping insertion in model container [2020-08-22 02:53:52,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:53:52" (3/3) ... [2020-08-22 02:53:52,311 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2020-08-22 02:53:52,321 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:53:52,329 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:53:52,343 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:53:52,368 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:53:52,368 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:53:52,368 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:53:52,368 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:53:52,368 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:53:52,368 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:53:52,369 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:53:52,369 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:53:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2020-08-22 02:53:52,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 02:53:52,402 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:52,403 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 02:53:52,403 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:52,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1827738968, now seen corresponding path program 1 times [2020-08-22 02:53:52,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:52,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111888577] [2020-08-22 02:53:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,076 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 02:53:53,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:53:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:53:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:53:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:53:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:53:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:53,200 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 02:53:53,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111888577] [2020-08-22 02:53:53,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:53,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 02:53:53,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196000009] [2020-08-22 02:53:53,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 02:53:53,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:53,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 02:53:53,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 02:53:53,233 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 3 states. [2020-08-22 02:53:54,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:54,292 INFO L93 Difference]: Finished difference Result 261 states and 346 transitions. [2020-08-22 02:53:54,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 02:53:54,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-22 02:53:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:54,308 INFO L225 Difference]: With dead ends: 261 [2020-08-22 02:53:54,309 INFO L226 Difference]: Without dead ends: 142 [2020-08-22 02:53:54,313 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 02:53:54,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-08-22 02:53:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 110. [2020-08-22 02:53:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-08-22 02:53:54,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2020-08-22 02:53:54,401 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 46 [2020-08-22 02:53:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:54,401 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2020-08-22 02:53:54,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 02:53:54,402 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2020-08-22 02:53:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 02:53:54,405 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:54,405 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 02:53:54,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:53:54,406 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:54,407 INFO L82 PathProgramCache]: Analyzing trace with hash 622240591, now seen corresponding path program 1 times [2020-08-22 02:53:54,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:54,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689496319] [2020-08-22 02:53:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,760 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 02:53:54,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:53:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:53:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:53:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 02:53:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 02:53:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:54,842 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 02:53:54,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689496319] [2020-08-22 02:53:54,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:54,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 02:53:54,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796423696] [2020-08-22 02:53:54,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 02:53:54,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:54,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 02:53:54,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 02:53:54,847 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 4 states. [2020-08-22 02:53:55,244 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:53:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:55,951 INFO L93 Difference]: Finished difference Result 188 states and 229 transitions. [2020-08-22 02:53:55,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 02:53:55,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-22 02:53:55,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:55,955 INFO L225 Difference]: With dead ends: 188 [2020-08-22 02:53:55,956 INFO L226 Difference]: Without dead ends: 126 [2020-08-22 02:53:55,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:53:55,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-08-22 02:53:55,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 101. [2020-08-22 02:53:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-08-22 02:53:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-08-22 02:53:55,991 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 47 [2020-08-22 02:53:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:55,991 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-08-22 02:53:55,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 02:53:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-08-22 02:53:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 02:53:55,993 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:55,994 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 02:53:55,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 02:53:55,994 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:55,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:55,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1297415431, now seen corresponding path program 1 times [2020-08-22 02:53:55,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:55,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886384315] [2020-08-22 02:53:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,322 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 02:53:56,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:53:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:53:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:53:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:53:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 02:53:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:56,418 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 02:53:56,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886384315] [2020-08-22 02:53:56,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:56,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 02:53:56,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210276867] [2020-08-22 02:53:56,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 02:53:56,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:56,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 02:53:56,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:53:56,421 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 8 states. [2020-08-22 02:53:56,717 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 02:53:57,046 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:53:57,281 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:53:57,515 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:53:58,277 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:53:59,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:59,555 INFO L93 Difference]: Finished difference Result 351 states and 437 transitions. [2020-08-22 02:53:59,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 02:53:59,561 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-22 02:53:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:59,566 INFO L225 Difference]: With dead ends: 351 [2020-08-22 02:53:59,566 INFO L226 Difference]: Without dead ends: 274 [2020-08-22 02:53:59,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-22 02:53:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-08-22 02:53:59,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 220. [2020-08-22 02:53:59,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-22 02:53:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2020-08-22 02:53:59,633 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 51 [2020-08-22 02:53:59,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:59,634 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2020-08-22 02:53:59,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 02:53:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2020-08-22 02:53:59,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 02:53:59,636 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:59,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:53:59,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 02:53:59,637 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:59,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:59,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1649615923, now seen corresponding path program 1 times [2020-08-22 02:53:59,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:59,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368464934] [2020-08-22 02:53:59,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:59,967 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 02:53:59,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:59,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:59,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:53:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:59,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:54:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:00,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:54:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 02:54:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:00,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 02:54:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 02:54:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:00,113 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 02:54:00,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368464934] [2020-08-22 02:54:00,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:54:00,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 02:54:00,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025524082] [2020-08-22 02:54:00,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 02:54:00,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:54:00,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 02:54:00,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:54:00,118 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand 12 states. [2020-08-22 02:54:00,541 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 02:54:00,851 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:54:01,156 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:54:01,377 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:54:01,890 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:54:02,711 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:54:03,038 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:54:03,316 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:54:03,592 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:54:03,834 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 02:54:04,120 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:54:04,417 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:54:04,715 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 02:54:05,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:54:05,858 INFO L93 Difference]: Finished difference Result 871 states and 1174 transitions. [2020-08-22 02:54:05,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-22 02:54:05,859 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-08-22 02:54:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:54:05,868 INFO L225 Difference]: With dead ends: 871 [2020-08-22 02:54:05,868 INFO L226 Difference]: Without dead ends: 675 [2020-08-22 02:54:05,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-22 02:54:05,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2020-08-22 02:54:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 582. [2020-08-22 02:54:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-08-22 02:54:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 724 transitions. [2020-08-22 02:54:06,016 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 724 transitions. Word has length 57 [2020-08-22 02:54:06,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:54:06,017 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 724 transitions. [2020-08-22 02:54:06,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 02:54:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 724 transitions. [2020-08-22 02:54:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-22 02:54:06,022 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:54:06,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:54:06,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 02:54:06,023 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:54:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:54:06,023 INFO L82 PathProgramCache]: Analyzing trace with hash 671694067, now seen corresponding path program 1 times [2020-08-22 02:54:06,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:54:06,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749781052] [2020-08-22 02:54:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:54:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,346 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 02:54:06,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:54:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:54:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:54:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:54:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:54:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 02:54:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 02:54:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 02:54:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 02:54:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:06,457 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 02:54:06,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749781052] [2020-08-22 02:54:06,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:54:06,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 02:54:06,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385622311] [2020-08-22 02:54:06,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 02:54:06,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:54:06,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 02:54:06,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 02:54:06,465 INFO L87 Difference]: Start difference. First operand 582 states and 724 transitions. Second operand 6 states. [2020-08-22 02:54:06,781 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 02:54:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:54:07,506 INFO L93 Difference]: Finished difference Result 973 states and 1255 transitions. [2020-08-22 02:54:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 02:54:07,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-08-22 02:54:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:54:07,510 INFO L225 Difference]: With dead ends: 973 [2020-08-22 02:54:07,510 INFO L226 Difference]: Without dead ends: 415 [2020-08-22 02:54:07,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-22 02:54:07,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-08-22 02:54:07,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 390. [2020-08-22 02:54:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-08-22 02:54:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 449 transitions. [2020-08-22 02:54:07,603 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 449 transitions. Word has length 61 [2020-08-22 02:54:07,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:54:07,603 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 449 transitions. [2020-08-22 02:54:07,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 02:54:07,604 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 449 transitions. [2020-08-22 02:54:07,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-22 02:54:07,606 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:54:07,607 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:54:07,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 02:54:07,607 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:54:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:54:07,608 INFO L82 PathProgramCache]: Analyzing trace with hash -511342643, now seen corresponding path program 1 times [2020-08-22 02:54:07,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:54:07,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719782427] [2020-08-22 02:54:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:54:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,903 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 02:54:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:54:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:54:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:54:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:54:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:54:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 02:54:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:54:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:07,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 02:54:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:08,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:54:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:08,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:54:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:08,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 02:54:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:08,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 02:54:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:08,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-22 02:54:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:54:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 02:54:08,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719782427] [2020-08-22 02:54:08,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:54:08,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 02:54:08,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090665069] [2020-08-22 02:54:08,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 02:54:08,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:54:08,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 02:54:08,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-22 02:54:08,050 INFO L87 Difference]: Start difference. First operand 390 states and 449 transitions. Second operand 10 states. [2020-08-22 02:54:08,608 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-22 02:54:09,167 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 02:54:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:54:10,033 INFO L93 Difference]: Finished difference Result 522 states and 614 transitions. [2020-08-22 02:54:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 02:54:10,034 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2020-08-22 02:54:10,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:54:10,035 INFO L225 Difference]: With dead ends: 522 [2020-08-22 02:54:10,035 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 02:54:10,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-08-22 02:54:10,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 02:54:10,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 02:54:10,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 02:54:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 02:54:10,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2020-08-22 02:54:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:54:10,040 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 02:54:10,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 02:54:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 02:54:10,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 02:54:10,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 02:54:10,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 02:54:10,379 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-08-22 02:54:12,357 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 228 [2020-08-22 02:54:13,849 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-08-22 02:54:14,471 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-22 02:54:14,798 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-22 02:54:15,139 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-22 02:54:15,317 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-08-22 02:54:15,663 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-22 02:54:15,892 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 22 [2020-08-22 02:54:16,127 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 02:54:16,745 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-08-22 02:54:16,926 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-22 02:54:17,603 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-08-22 02:54:17,886 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-22 02:54:18,222 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-22 02:54:18,793 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-08-22 02:54:18,979 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-22 02:54:19,588 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-22 02:54:19,919 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-22 02:54:20,111 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 22 [2020-08-22 02:54:20,501 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-22 02:54:20,836 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-22 02:54:21,243 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-22 02:54:21,360 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 22 [2020-08-22 02:54:22,012 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-22 02:54:22,130 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 22 [2020-08-22 02:54:22,691 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 21 [2020-08-22 02:54:22,729 INFO L268 CegarLoopResult]: For program point L123(lines 123 127) no Hoare annotation was computed. [2020-08-22 02:54:22,729 INFO L268 CegarLoopResult]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2020-08-22 02:54:22,729 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point L139(lines 116 140) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point L193-1(line 193) no Hoare annotation was computed. [2020-08-22 02:54:22,730 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2020-08-22 02:54:22,731 INFO L268 CegarLoopResult]: For program point L180(lines 180 184) no Hoare annotation was computed. [2020-08-22 02:54:22,731 INFO L268 CegarLoopResult]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2020-08-22 02:54:22,731 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-22 02:54:22,731 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2020-08-22 02:54:22,732 INFO L268 CegarLoopResult]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2020-08-22 02:54:22,732 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2020-08-22 02:54:22,732 INFO L268 CegarLoopResult]: For program point L200(lines 173 201) no Hoare annotation was computed. [2020-08-22 02:54:22,732 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 870 876) the Hoare annotation is: true [2020-08-22 02:54:22,733 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 870 876) no Hoare annotation was computed. [2020-08-22 02:54:22,733 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 877 885) no Hoare annotation was computed. [2020-08-22 02:54:22,733 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 877 885) the Hoare annotation is: true [2020-08-22 02:54:22,733 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 877 885) no Hoare annotation was computed. [2020-08-22 02:54:22,733 INFO L264 CegarLoopResult]: At program point L897(line 897) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-22 02:54:22,733 INFO L268 CegarLoopResult]: For program point L897-1(line 897) no Hoare annotation was computed. [2020-08-22 02:54:22,733 INFO L268 CegarLoopResult]: For program point L895(lines 895 908) no Hoare annotation was computed. [2020-08-22 02:54:22,734 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 887 911) the Hoare annotation is: true [2020-08-22 02:54:22,734 INFO L268 CegarLoopResult]: For program point L895-1(lines 887 911) no Hoare annotation was computed. [2020-08-22 02:54:22,734 INFO L271 CegarLoopResult]: At program point L893(line 893) the Hoare annotation is: true [2020-08-22 02:54:22,734 INFO L268 CegarLoopResult]: For program point L893-1(line 893) no Hoare annotation was computed. [2020-08-22 02:54:22,734 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 887 911) no Hoare annotation was computed. [2020-08-22 02:54:22,734 INFO L264 CegarLoopResult]: At program point L901(line 901) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-22 02:54:22,734 INFO L268 CegarLoopResult]: For program point L899(lines 899 905) no Hoare annotation was computed. [2020-08-22 02:54:22,735 INFO L264 CegarLoopResult]: At program point L834-1(line 834) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,735 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 828 850) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,735 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 828 850) no Hoare annotation was computed. [2020-08-22 02:54:22,735 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 828 850) no Hoare annotation was computed. [2020-08-22 02:54:22,735 INFO L264 CegarLoopResult]: At program point L840(line 840) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= main_~tmp~6 ~waterLevel~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,736 INFO L264 CegarLoopResult]: At program point L840-1(line 840) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= main_~tmp~6 ~waterLevel~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,736 INFO L268 CegarLoopResult]: For program point L838(lines 838 845) no Hoare annotation was computed. [2020-08-22 02:54:22,736 INFO L268 CegarLoopResult]: For program point L838-1(lines 838 845) no Hoare annotation was computed. [2020-08-22 02:54:22,736 INFO L268 CegarLoopResult]: For program point L836(line 836) no Hoare annotation was computed. [2020-08-22 02:54:22,736 INFO L264 CegarLoopResult]: At program point L835(line 835) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,736 INFO L264 CegarLoopResult]: At program point L834(line 834) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,737 INFO L268 CegarLoopResult]: For program point L801(line 801) no Hoare annotation was computed. [2020-08-22 02:54:22,737 INFO L268 CegarLoopResult]: For program point L800(line 800) no Hoare annotation was computed. [2020-08-22 02:54:22,737 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 784 807) no Hoare annotation was computed. [2020-08-22 02:54:22,737 INFO L268 CegarLoopResult]: For program point L799(line 799) no Hoare annotation was computed. [2020-08-22 02:54:22,737 INFO L268 CegarLoopResult]: For program point L798(line 798) no Hoare annotation was computed. [2020-08-22 02:54:22,737 INFO L268 CegarLoopResult]: For program point L797(line 797) no Hoare annotation was computed. [2020-08-22 02:54:22,737 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 784 807) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point L796(line 796) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 784 807) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point L795(line 795) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point L794(line 794) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point L793(line 793) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point L792(line 792) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point L791(line 791) no Hoare annotation was computed. [2020-08-22 02:54:22,738 INFO L268 CegarLoopResult]: For program point L790(line 790) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point L789(line 789) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point L802(line 802) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 660 674) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L264 CegarLoopResult]: At program point L666(line 666) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point L664(lines 664 670) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 660 674) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= |old(~systemActive~0)| ~systemActive~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))))) [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 660 674) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 596 604) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 596 604) the Hoare annotation is: true [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 596 604) no Hoare annotation was computed. [2020-08-22 02:54:22,739 INFO L268 CegarLoopResult]: For program point L650(lines 650 654) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 641 659) the Hoare annotation is: true [2020-08-22 02:54:22,740 INFO L271 CegarLoopResult]: At program point L648(line 648) the Hoare annotation is: true [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point L650-2(lines 650 654) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point L648-1(line 648) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 641 659) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 641 659) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point L635(line 635) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point L635-1(line 635) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point L624(lines 624 632) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 605 640) no Hoare annotation was computed. [2020-08-22 02:54:22,740 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 632) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 605 640) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point L612(lines 612 620) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 605 640) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point L612-2(lines 612 620) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 863 869) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 863 869) the Hoare annotation is: true [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point L379(lines 379 386) no Hoare annotation was computed. [2020-08-22 02:54:22,741 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2020-08-22 02:54:22,742 INFO L268 CegarLoopResult]: For program point L373(lines 373 393) no Hoare annotation was computed. [2020-08-22 02:54:22,742 INFO L268 CegarLoopResult]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2020-08-22 02:54:22,742 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2020-08-22 02:54:22,742 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2020-08-22 02:54:22,742 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 815 824) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,742 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 815 824) no Hoare annotation was computed. [2020-08-22 02:54:22,742 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 815 824) no Hoare annotation was computed. [2020-08-22 02:54:22,743 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 585 595) no Hoare annotation was computed. [2020-08-22 02:54:22,743 INFO L268 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-08-22 02:54:22,743 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-22 02:54:22,743 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 585 595) no Hoare annotation was computed. [2020-08-22 02:54:22,743 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 585 595) no Hoare annotation was computed. [2020-08-22 02:54:22,743 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 577 584) the Hoare annotation is: true [2020-08-22 02:54:22,743 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 577 584) no Hoare annotation was computed. [2020-08-22 02:54:22,743 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 577 584) no Hoare annotation was computed. [2020-08-22 02:54:22,744 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 544 568) no Hoare annotation was computed. [2020-08-22 02:54:22,744 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 544 568) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse1 .cse0 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-22 02:54:22,744 INFO L264 CegarLoopResult]: At program point L563(line 563) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse1 .cse0 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-22 02:54:22,744 INFO L268 CegarLoopResult]: For program point L563-1(lines 544 568) no Hoare annotation was computed. [2020-08-22 02:54:22,744 INFO L264 CegarLoopResult]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 02:54:22,744 INFO L264 CegarLoopResult]: At program point L554(line 554) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 02:54:22,745 INFO L268 CegarLoopResult]: For program point L552(lines 552 560) no Hoare annotation was computed. [2020-08-22 02:54:22,745 INFO L264 CegarLoopResult]: At program point L550(line 550) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-22 02:54:22,745 INFO L268 CegarLoopResult]: For program point L550-1(line 550) no Hoare annotation was computed. [2020-08-22 02:54:22,745 INFO L268 CegarLoopResult]: For program point L548(lines 548 565) no Hoare annotation was computed. [2020-08-22 02:54:22,745 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 536 542) no Hoare annotation was computed. [2020-08-22 02:54:22,745 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 536 542) the Hoare annotation is: true [2020-08-22 02:54:22,745 INFO L268 CegarLoopResult]: For program point L706-1(lines 706 712) no Hoare annotation was computed. [2020-08-22 02:54:22,746 INFO L264 CegarLoopResult]: At program point testENTRY(lines 686 751) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,746 INFO L268 CegarLoopResult]: For program point L698(lines 698 702) no Hoare annotation was computed. [2020-08-22 02:54:22,746 INFO L268 CegarLoopResult]: For program point testFINAL(lines 686 751) no Hoare annotation was computed. [2020-08-22 02:54:22,746 INFO L264 CegarLoopResult]: At program point L744(lines 695 745) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-22 02:54:22,746 INFO L264 CegarLoopResult]: At program point L734(line 734) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse0 .cse1) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)))) [2020-08-22 02:54:22,746 INFO L268 CegarLoopResult]: For program point L732(lines 732 738) no Hoare annotation was computed. [2020-08-22 02:54:22,746 INFO L264 CegarLoopResult]: At program point L732-1(lines 726 739) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 02:54:22,747 INFO L268 CegarLoopResult]: For program point L697(lines 696 743) no Hoare annotation was computed. [2020-08-22 02:54:22,747 INFO L268 CegarLoopResult]: For program point L726(lines 726 739) no Hoare annotation was computed. [2020-08-22 02:54:22,747 INFO L264 CegarLoopResult]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 02:54:22,747 INFO L268 CegarLoopResult]: For program point L716(lines 716 722) no Hoare annotation was computed. [2020-08-22 02:54:22,747 INFO L268 CegarLoopResult]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2020-08-22 02:54:22,747 INFO L264 CegarLoopResult]: At program point L741(lines 696 743) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 02:54:22,748 INFO L264 CegarLoopResult]: At program point L708(line 708) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point testEXIT(lines 686 751) no Hoare annotation was computed. [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point L706(lines 706 712) no Hoare annotation was computed. [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point L333(lines 333 340) no Hoare annotation was computed. [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point L327(lines 327 347) no Hoare annotation was computed. [2020-08-22 02:54:22,748 INFO L268 CegarLoopResult]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2020-08-22 02:54:22,749 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 492 500) no Hoare annotation was computed. [2020-08-22 02:54:22,749 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 492 500) the Hoare annotation is: true [2020-08-22 02:54:22,749 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 492 500) no Hoare annotation was computed. [2020-08-22 02:54:22,749 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 460 482) no Hoare annotation was computed. [2020-08-22 02:54:22,749 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 460 482) no Hoare annotation was computed. [2020-08-22 02:54:22,749 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 460 482) no Hoare annotation was computed. [2020-08-22 02:54:22,749 INFO L268 CegarLoopResult]: For program point L468(lines 468 476) no Hoare annotation was computed. [2020-08-22 02:54:22,749 INFO L268 CegarLoopResult]: For program point L468-2(lines 468 476) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point L256(lines 256 297) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point L275(line 275) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point L275-1(line 275) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point L234(lines 234 238) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point L298(lines 298 309) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2020-08-22 02:54:22,750 INFO L268 CegarLoopResult]: For program point L261(lines 261 265) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point L280(lines 258 281) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point L239(lines 239 255) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point L299(lines 299 306) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point L260(lines 259 279) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point L291(line 291) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point L291-1(line 291) no Hoare annotation was computed. [2020-08-22 02:54:22,751 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 853 862) no Hoare annotation was computed. [2020-08-22 02:54:22,752 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 853 862) no Hoare annotation was computed. [2020-08-22 02:54:22,752 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 853 862) no Hoare annotation was computed. [2020-08-22 02:54:22,752 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 02:54:22,752 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#t~string29.offset| |old(#t~string29.offset)|) (= |#t~string56.base| |old(#t~string56.base)|) (= |#t~string58.base| |old(#t~string58.base)|) (= |old(#valid)| |#valid|) (= |#t~string50.base| |old(#t~string50.base)|) (= |#t~string30.offset| |old(#t~string30.offset)|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |#t~string32.base| |old(#t~string32.base)|) (= |#t~string28.base| |old(#t~string28.base)|) (= |#t~string31.base| |old(#t~string31.base)|) (= |#t~string48.base| |old(#t~string48.base)|) (= |#t~string21.base| |old(#t~string21.base)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string52.offset| |old(#t~string52.offset)|) (= |#t~string27.offset| |old(#t~string27.offset)|) (= |#t~string36.base| |old(#t~string36.base)|) (= |#t~string19.offset| |old(#t~string19.offset)|) (= |#t~string29.base| |old(#t~string29.base)|) (= |#t~string21.offset| |old(#t~string21.offset)|) (= ~systemActive~0 |old(~systemActive~0)|) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (= |#t~string60.offset| |old(#t~string60.offset)|) (= |#t~string42.base| |old(#t~string42.base)|) (= |#t~string50.offset| |old(#t~string50.offset)|) (= |#t~string23.offset| |old(#t~string23.offset)|) (= ~head~0.offset |old(~head~0.offset)|) (= |#t~string20.base| |old(#t~string20.base)|) (= |#t~string22.offset| |old(#t~string22.offset)|) (= |#t~string40.offset| |old(#t~string40.offset)|) (= |#t~string27.base| |old(#t~string27.base)|) (= |#t~string56.offset| |old(#t~string56.offset)|) (= |#t~string36.offset| |old(#t~string36.offset)|) (= |#t~string58.offset| |old(#t~string58.offset)|) (= |#t~string54.offset| |old(#t~string54.offset)|) (= |#t~string62.offset| |old(#t~string62.offset)|) (= |#t~string28.offset| |old(#t~string28.offset)|) (= |#t~string19.base| |old(#t~string19.base)|) (= |#t~string52.base| |old(#t~string52.base)|) (= |#t~string22.base| |old(#t~string22.base)|) (= |#t~string23.base| |old(#t~string23.base)|) (= |#t~string54.base| |old(#t~string54.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#t~string42.offset| |old(#t~string42.offset)|) (= |#t~string40.base| |old(#t~string40.base)|) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |#t~string38.offset| |old(#t~string38.offset)|) (= |#t~string18.offset| |old(#t~string18.offset)|) (= |#t~string48.offset| |old(#t~string48.offset)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string31.offset| |old(#t~string31.offset)|) (= |#t~string62.base| |old(#t~string62.base)|) (= |#t~string30.base| |old(#t~string30.base)|) (= |#t~string38.base| |old(#t~string38.base)|) (= |#t~string18.base| |old(#t~string18.base)|) (= |#t~string20.offset| |old(#t~string20.offset)|) (= |#t~string32.offset| |old(#t~string32.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |#t~string60.base| |old(#t~string60.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-08-22 02:54:22,752 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 02:54:22,752 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 569 576) no Hoare annotation was computed. [2020-08-22 02:54:22,753 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 569 576) no Hoare annotation was computed. [2020-08-22 02:54:22,753 INFO L268 CegarLoopResult]: For program point activatePumpENTRY(lines 569 576) no Hoare annotation was computed. [2020-08-22 02:54:22,753 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 483 491) the Hoare annotation is: true [2020-08-22 02:54:22,753 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 483 491) no Hoare annotation was computed. [2020-08-22 02:54:22,753 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 483 491) no Hoare annotation was computed. [2020-08-22 02:54:22,753 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-22 02:54:22,753 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-08-22 02:54:22,753 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-22 02:54:22,754 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 439 450) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))))) [2020-08-22 02:54:22,754 INFO L268 CegarLoopResult]: For program point L443-1(lines 439 450) no Hoare annotation was computed. [2020-08-22 02:54:22,754 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 439 450) no Hoare annotation was computed. [2020-08-22 02:54:22,754 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalENTRY(lines 451 459) no Hoare annotation was computed. [2020-08-22 02:54:22,754 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 451 459) no Hoare annotation was computed. [2020-08-22 02:54:22,754 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 451 459) no Hoare annotation was computed. [2020-08-22 02:54:22,754 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 512 535) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2020-08-22 02:54:22,755 INFO L264 CegarLoopResult]: At program point L525(line 525) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0)))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1))) [2020-08-22 02:54:22,755 INFO L264 CegarLoopResult]: At program point L523(lines 523 529) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2020-08-22 02:54:22,755 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 512 535) no Hoare annotation was computed. [2020-08-22 02:54:22,755 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 512 535) no Hoare annotation was computed. [2020-08-22 02:54:22,755 INFO L264 CegarLoopResult]: At program point L518(line 518) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0))) [2020-08-22 02:54:22,755 INFO L268 CegarLoopResult]: For program point L516(lines 515 534) no Hoare annotation was computed. [2020-08-22 02:54:22,756 INFO L268 CegarLoopResult]: For program point L768(lines 768 772) no Hoare annotation was computed. [2020-08-22 02:54:22,756 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 754 783) no Hoare annotation was computed. [2020-08-22 02:54:22,756 INFO L271 CegarLoopResult]: At program point L768-1(lines 768 772) the Hoare annotation is: true [2020-08-22 02:54:22,756 INFO L268 CegarLoopResult]: For program point L765(line 765) no Hoare annotation was computed. [2020-08-22 02:54:22,756 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 754 783) the Hoare annotation is: true [2020-08-22 02:54:22,756 INFO L271 CegarLoopResult]: At program point L764-2(lines 764 778) the Hoare annotation is: true [2020-08-22 02:54:22,756 INFO L271 CegarLoopResult]: At program point L760(line 760) the Hoare annotation is: true [2020-08-22 02:54:22,756 INFO L268 CegarLoopResult]: For program point L760-1(line 760) no Hoare annotation was computed. [2020-08-22 02:54:22,757 INFO L271 CegarLoopResult]: At program point L779(lines 754 783) the Hoare annotation is: true [2020-08-22 02:54:22,757 INFO L268 CegarLoopResult]: For program point L775(line 775) no Hoare annotation was computed. [2020-08-22 02:54:22,757 INFO L271 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 415 426) the Hoare annotation is: true [2020-08-22 02:54:22,757 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 415 426) no Hoare annotation was computed. [2020-08-22 02:54:22,757 INFO L268 CegarLoopResult]: For program point L419-1(lines 415 426) no Hoare annotation was computed. [2020-08-22 02:54:22,757 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 808 814) no Hoare annotation was computed. [2020-08-22 02:54:22,757 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 808 814) the Hoare annotation is: true [2020-08-22 02:54:22,757 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 02:54:22,758 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 02:54:22,758 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 02:54:22,758 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 02:54:22,758 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 427 438) no Hoare annotation was computed. [2020-08-22 02:54:22,758 INFO L268 CegarLoopResult]: For program point L431-1(lines 427 438) no Hoare annotation was computed. [2020-08-22 02:54:22,758 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 427 438) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1))) [2020-08-22 02:54:22,758 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 676 683) no Hoare annotation was computed. [2020-08-22 02:54:22,759 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 680) no Hoare annotation was computed. [2020-08-22 02:54:22,759 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 676 683) the Hoare annotation is: true [2020-08-22 02:54:22,759 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 676 683) no Hoare annotation was computed. [2020-08-22 02:54:22,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 02:54:22 BoogieIcfgContainer [2020-08-22 02:54:22,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 02:54:22,779 INFO L168 Benchmark]: Toolchain (without parser) took 32436.58 ms. Allocated memory was 143.1 MB in the beginning and 639.6 MB in the end (delta: 496.5 MB). Free memory was 104.1 MB in the beginning and 298.8 MB in the end (delta: -194.7 MB). Peak memory consumption was 488.4 MB. Max. memory is 7.1 GB. [2020-08-22 02:54:22,780 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 02:54:22,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.71 ms. Allocated memory was 143.1 MB in the beginning and 205.0 MB in the end (delta: 61.9 MB). Free memory was 103.9 MB in the beginning and 172.0 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-08-22 02:54:22,781 INFO L168 Benchmark]: Boogie Preprocessor took 109.27 ms. Allocated memory is still 205.0 MB. Free memory was 172.0 MB in the beginning and 167.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-22 02:54:22,782 INFO L168 Benchmark]: RCFGBuilder took 1156.26 ms. Allocated memory was 205.0 MB in the beginning and 231.7 MB in the end (delta: 26.7 MB). Free memory was 167.7 MB in the beginning and 184.9 MB in the end (delta: -17.2 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2020-08-22 02:54:22,783 INFO L168 Benchmark]: TraceAbstraction took 30473.76 ms. Allocated memory was 231.7 MB in the beginning and 639.6 MB in the end (delta: 407.9 MB). Free memory was 184.9 MB in the beginning and 298.8 MB in the end (delta: -113.9 MB). Peak memory consumption was 480.6 MB. Max. memory is 7.1 GB. [2020-08-22 02:54:22,786 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.71 ms. Allocated memory was 143.1 MB in the beginning and 205.0 MB in the end (delta: 61.9 MB). Free memory was 103.9 MB in the beginning and 172.0 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.27 ms. Allocated memory is still 205.0 MB. Free memory was 172.0 MB in the beginning and 167.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1156.26 ms. Allocated memory was 205.0 MB in the beginning and 231.7 MB in the end (delta: 26.7 MB). Free memory was 167.7 MB in the beginning and 184.9 MB in the end (delta: -17.2 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30473.76 ms. Allocated memory was 231.7 MB in the beginning and 639.6 MB in the end (delta: 407.9 MB). Free memory was 184.9 MB in the beginning and 298.8 MB in the end (delta: -113.9 MB). Peak memory consumption was 480.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 680]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: (!(\old(systemActive) == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0) - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: (((!(\old(systemActive) == 1) || !(\old(waterLevel) == 1)) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || !(\old(pumpRunning) == 0)) || ((\old(waterLevel) == waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.6s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 568 SDtfs, 1204 SDslu, 546 SDs, 0 SdLazy, 2809 SolverSat, 774 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=582occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 229 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 618 PreInvPairs, 669 NumberOfFragments, 1010 HoareAnnotationTreeSize, 618 FomulaSimplifications, 67185 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 52 FomulaSimplificationsInter, 21174 FormulaSimplificationTreeSizeReductionInter, 9.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 105112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 16/23 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...