/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:23:12,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:23:12,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:23:12,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 23:23:12,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 23:23:12,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 23:23:12,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 23:23:12,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 23:23:12,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 23:23:12,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 23:23:12,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 23:23:12,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 23:23:12,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:23:12,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:23:12,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:23:12,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:23:12,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:23:12,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:23:12,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:23:12,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:23:12,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:23:12,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:23:12,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:23:12,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:23:12,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 23:23:12,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 23:23:12,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 23:23:12,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 23:23:12,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 23:23:12,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 23:23:12,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 23:23:12,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 23:23:12,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 23:23:12,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 23:23:12,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 23:23:12,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 23:23:12,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 23:23:12,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 23:23:12,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:23:12,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:23:12,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:23:12,596 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 [2020-08-18 23:23:12,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:23:12,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:23:12,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:23:12,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:23:12,641 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:23:12,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:23:12,641 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:23:12,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:23:12,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:23:12,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:23:12,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:23:12,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:23:12,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:23:12,645 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:23:12,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:23:12,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:23:12,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:23:12,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:23:12,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:23:12,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:23:12,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:23:12,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:23:12,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:23:12,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:23:12,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:23:12,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:23:12,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:23:12,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:23:12,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:23:12,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:23:12,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:23:12,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:23:12,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:23:12,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:23:12,964 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:23:12,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-08-18 23:23:13,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fe38f7db/6cc59f7026e5488fba39ca1032baa94a/FLAG28ffe7e40 [2020-08-18 23:23:13,616 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:23:13,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-08-18 23:23:13,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fe38f7db/6cc59f7026e5488fba39ca1032baa94a/FLAG28ffe7e40 [2020-08-18 23:23:13,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fe38f7db/6cc59f7026e5488fba39ca1032baa94a [2020-08-18 23:23:13,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:23:13,886 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:23:13,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:23:13,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:23:13,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:23:13,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:23:13" (1/1) ... [2020-08-18 23:23:13,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:13, skipping insertion in model container [2020-08-18 23:23:13,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:23:13" (1/1) ... [2020-08-18 23:23:13,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:23:13,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:23:14,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:23:14,434 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:23:14,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:23:14,609 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:23:14,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14 WrapperNode [2020-08-18 23:23:14,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:23:14,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:23:14,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:23:14,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:23:14,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (1/1) ... [2020-08-18 23:23:14,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (1/1) ... [2020-08-18 23:23:14,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (1/1) ... [2020-08-18 23:23:14,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (1/1) ... [2020-08-18 23:23:14,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (1/1) ... [2020-08-18 23:23:14,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (1/1) ... [2020-08-18 23:23:14,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (1/1) ... [2020-08-18 23:23:14,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:23:14,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:23:14,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:23:14,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:23:14,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (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 [2020-08-18 23:23:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:23:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:23:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 23:23:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 23:23:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 23:23:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 23:23:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 23:23:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 23:23:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 23:23:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 23:23:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 23:23:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 23:23:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 23:23:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 23:23:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 23:23:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 23:23:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 23:23:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 23:23:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 23:23:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 23:23:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 23:23:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 23:23:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 23:23:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 23:23:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-18 23:23:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 23:23:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 23:23:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 23:23:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 23:23:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 23:23:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 23:23:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 23:23:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 23:23:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-18 23:23:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 23:23:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 23:23:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 23:23:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 23:23:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:23:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:23:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:23:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 23:23:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 23:23:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 23:23:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 23:23:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 23:23:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 23:23:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 23:23:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 23:23:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 23:23:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 23:23:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 23:23:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 23:23:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 23:23:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 23:23:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 23:23:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 23:23:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 23:23:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 23:23:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 23:23:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 23:23:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 23:23:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 23:23:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 23:23:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 23:23:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 23:23:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 23:23:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 23:23:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 23:23:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 23:23:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 23:23:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 23:23:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 23:23:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 23:23:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 23:23:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 23:23:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 23:23:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 23:23:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 23:23:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-18 23:23:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 23:23:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 23:23:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 23:23:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-18 23:23:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 23:23:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 23:23:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 23:23:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 23:23:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:23:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:23:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 23:23:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:23:15,886 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:23:15,886 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 23:23:15,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:23:15 BoogieIcfgContainer [2020-08-18 23:23:15,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:23:15,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:23:15,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:23:15,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:23:15,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:23:13" (1/3) ... [2020-08-18 23:23:15,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bd0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:23:15, skipping insertion in model container [2020-08-18 23:23:15,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:23:14" (2/3) ... [2020-08-18 23:23:15,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bd0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:23:15, skipping insertion in model container [2020-08-18 23:23:15,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:23:15" (3/3) ... [2020-08-18 23:23:15,905 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2020-08-18 23:23:15,916 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:23:15,926 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:23:15,941 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:23:15,963 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:23:15,963 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:23:15,964 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:23:15,964 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:23:15,964 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:23:15,964 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:23:15,964 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:23:15,964 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:23:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-08-18 23:23:15,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-18 23:23:15,998 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:23:15,999 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] [2020-08-18 23:23:16,000 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:23:16,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:23:16,006 INFO L82 PathProgramCache]: Analyzing trace with hash -635159435, now seen corresponding path program 1 times [2020-08-18 23:23:16,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:23:16,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124694624] [2020-08-18 23:23:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:23:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,701 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:23:16,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:23:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:23:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:23:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:23:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:23:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 23:23:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 23:23:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:23:16,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124694624] [2020-08-18 23:23:16,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:23:16,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 23:23:16,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099937631] [2020-08-18 23:23:16,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 23:23:16,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:23:16,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 23:23:16,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 23:23:16,857 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 3 states. [2020-08-18 23:23:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:23:18,011 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2020-08-18 23:23:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 23:23:18,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-18 23:23:18,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:23:18,029 INFO L225 Difference]: With dead ends: 299 [2020-08-18 23:23:18,029 INFO L226 Difference]: Without dead ends: 162 [2020-08-18 23:23:18,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 23:23:18,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-08-18 23:23:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 128. [2020-08-18 23:23:18,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-18 23:23:18,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 151 transitions. [2020-08-18 23:23:18,123 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 151 transitions. Word has length 46 [2020-08-18 23:23:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:23:18,123 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 151 transitions. [2020-08-18 23:23:18,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 23:23:18,124 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 151 transitions. [2020-08-18 23:23:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-18 23:23:18,127 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:23:18,127 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] [2020-08-18 23:23:18,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:23:18,128 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:23:18,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:23:18,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1199676654, now seen corresponding path program 1 times [2020-08-18 23:23:18,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:23:18,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278334611] [2020-08-18 23:23:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:23:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,479 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:23:18,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:23:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:23:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:23:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:23:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:23:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:23:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 23:23:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:23:18,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278334611] [2020-08-18 23:23:18,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:23:18,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 23:23:18,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930376300] [2020-08-18 23:23:18,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 23:23:18,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:23:18,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 23:23:18,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 23:23:18,531 INFO L87 Difference]: Start difference. First operand 128 states and 151 transitions. Second operand 4 states. [2020-08-18 23:23:18,908 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 23:23:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:23:19,752 INFO L93 Difference]: Finished difference Result 226 states and 276 transitions. [2020-08-18 23:23:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 23:23:19,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-18 23:23:19,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:23:19,756 INFO L225 Difference]: With dead ends: 226 [2020-08-18 23:23:19,757 INFO L226 Difference]: Without dead ends: 146 [2020-08-18 23:23:19,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 23:23:19,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-08-18 23:23:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 119. [2020-08-18 23:23:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-18 23:23:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2020-08-18 23:23:19,798 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 47 [2020-08-18 23:23:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:23:19,799 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2020-08-18 23:23:19,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 23:23:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2020-08-18 23:23:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 23:23:19,801 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:23:19,802 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] [2020-08-18 23:23:19,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 23:23:19,802 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:23:19,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:23:19,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1199325015, now seen corresponding path program 1 times [2020-08-18 23:23:19,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:23:19,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824701535] [2020-08-18 23:23:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:23:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,129 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:23:20,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:23:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:23:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:23:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:23:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:23:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:23:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 23:23:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:23:20,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824701535] [2020-08-18 23:23:20,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:23:20,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 23:23:20,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549709112] [2020-08-18 23:23:20,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:23:20,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:23:20,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:23:20,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:23:20,216 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 8 states. [2020-08-18 23:23:20,564 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:23:20,882 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:21,151 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:21,368 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:22,068 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 23:23:23,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:23:23,729 INFO L93 Difference]: Finished difference Result 409 states and 509 transitions. [2020-08-18 23:23:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 23:23:23,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-18 23:23:23,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:23:23,735 INFO L225 Difference]: With dead ends: 409 [2020-08-18 23:23:23,735 INFO L226 Difference]: Without dead ends: 314 [2020-08-18 23:23:23,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-18 23:23:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-08-18 23:23:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 256. [2020-08-18 23:23:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-08-18 23:23:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 310 transitions. [2020-08-18 23:23:23,812 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 310 transitions. Word has length 51 [2020-08-18 23:23:23,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:23:23,813 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 310 transitions. [2020-08-18 23:23:23,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:23:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 310 transitions. [2020-08-18 23:23:23,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-18 23:23:23,816 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:23:23,816 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] [2020-08-18 23:23:23,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 23:23:23,817 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:23:23,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:23:23,817 INFO L82 PathProgramCache]: Analyzing trace with hash -274049321, now seen corresponding path program 1 times [2020-08-18 23:23:23,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:23:23,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137576234] [2020-08-18 23:23:23,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:23:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,180 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:23:24,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:23:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:23:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:23:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:23:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:23:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:23:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 23:23:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 23:23:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:23:24,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137576234] [2020-08-18 23:23:24,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:23:24,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 23:23:24,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212349706] [2020-08-18 23:23:24,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 23:23:24,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:23:24,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 23:23:24,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:23:24,280 INFO L87 Difference]: Start difference. First operand 256 states and 310 transitions. Second operand 12 states. [2020-08-18 23:23:24,680 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:23:24,976 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:25,226 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:25,470 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:25,996 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 23:23:26,846 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:27,271 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 23:23:27,606 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 23:23:27,841 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 23:23:28,109 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:23:28,524 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 23:23:28,845 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 23:23:29,181 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 23:23:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:23:30,609 INFO L93 Difference]: Finished difference Result 1027 states and 1368 transitions. [2020-08-18 23:23:30,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 23:23:30,610 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-08-18 23:23:30,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:23:30,618 INFO L225 Difference]: With dead ends: 1027 [2020-08-18 23:23:30,618 INFO L226 Difference]: Without dead ends: 795 [2020-08-18 23:23:30,621 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 [2020-08-18 23:23:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-08-18 23:23:30,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 694. [2020-08-18 23:23:30,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-08-18 23:23:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 862 transitions. [2020-08-18 23:23:30,776 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 862 transitions. Word has length 57 [2020-08-18 23:23:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:23:30,776 INFO L479 AbstractCegarLoop]: Abstraction has 694 states and 862 transitions. [2020-08-18 23:23:30,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 23:23:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 862 transitions. [2020-08-18 23:23:30,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-18 23:23:30,781 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:23:30,781 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] [2020-08-18 23:23:30,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 23:23:30,782 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:23:30,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:23:30,782 INFO L82 PathProgramCache]: Analyzing trace with hash 2094502109, now seen corresponding path program 1 times [2020-08-18 23:23:30,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:23:30,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737278945] [2020-08-18 23:23:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:23:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,039 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:23:31,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:23:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:23:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:23:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:23:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:23:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:23:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 23:23:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 23:23:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 23:23:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:23:31,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737278945] [2020-08-18 23:23:31,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:23:31,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 23:23:31,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106296820] [2020-08-18 23:23:31,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 23:23:31,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:23:31,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 23:23:31,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:23:31,154 INFO L87 Difference]: Start difference. First operand 694 states and 862 transitions. Second operand 6 states. [2020-08-18 23:23:31,491 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:23:32,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:23:32,297 INFO L93 Difference]: Finished difference Result 1115 states and 1437 transitions. [2020-08-18 23:23:32,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:23:32,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-08-18 23:23:32,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:23:32,303 INFO L225 Difference]: With dead ends: 1115 [2020-08-18 23:23:32,303 INFO L226 Difference]: Without dead ends: 445 [2020-08-18 23:23:32,306 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 [2020-08-18 23:23:32,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-08-18 23:23:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 420. [2020-08-18 23:23:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-08-18 23:23:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 479 transitions. [2020-08-18 23:23:32,378 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 479 transitions. Word has length 61 [2020-08-18 23:23:32,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:23:32,378 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 479 transitions. [2020-08-18 23:23:32,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 23:23:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 479 transitions. [2020-08-18 23:23:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-18 23:23:32,381 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:23:32,381 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] [2020-08-18 23:23:32,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 23:23:32,382 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:23:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:23:32,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1427524119, now seen corresponding path program 1 times [2020-08-18 23:23:32,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:23:32,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869984978] [2020-08-18 23:23:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:23:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,667 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:23:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:23:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:23:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:23:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:23:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:23:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 23:23:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:23:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 23:23:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:23:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:23:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 23:23:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-18 23:23:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 23:23:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:23:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 23:23:32,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869984978] [2020-08-18 23:23:32,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:23:32,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 23:23:32,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559736604] [2020-08-18 23:23:32,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 23:23:32,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:23:32,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 23:23:32,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:23:32,823 INFO L87 Difference]: Start difference. First operand 420 states and 479 transitions. Second operand 10 states. [2020-08-18 23:23:33,397 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-18 23:23:33,915 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 23:23:34,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:23:34,804 INFO L93 Difference]: Finished difference Result 562 states and 654 transitions. [2020-08-18 23:23:34,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 23:23:34,804 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2020-08-18 23:23:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:23:34,806 INFO L225 Difference]: With dead ends: 562 [2020-08-18 23:23:34,806 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 23:23:34,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-08-18 23:23:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 23:23:34,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 23:23:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 23:23:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 23:23:34,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2020-08-18 23:23:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:23:34,809 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 23:23:34,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 23:23:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 23:23:34,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 23:23:34,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 23:23:34,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 23:23:35,166 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 231 [2020-08-18 23:23:38,233 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-18 23:23:38,579 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-18 23:23:38,704 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 22 [2020-08-18 23:23:38,846 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-08-18 23:23:39,487 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-18 23:23:40,079 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-18 23:23:40,552 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-18 23:23:40,697 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-18 23:23:41,048 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-18 23:23:41,247 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 23:23:41,600 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-18 23:23:42,191 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-08-18 23:23:42,334 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-18 23:23:42,926 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-18 23:23:43,601 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-08-18 23:23:44,387 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-08-18 23:23:44,537 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-18 23:23:45,209 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-08-18 23:23:45,664 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-18 23:23:46,052 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-18 23:23:46,530 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-18 23:23:47,059 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-18 23:23:47,428 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-18 23:23:47,954 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 21 [2020-08-18 23:23:48,000 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 23:23:48,000 INFO L268 CegarLoopResult]: For program point L126-2(lines 126 147) no Hoare annotation was computed. [2020-08-18 23:23:48,000 INFO L268 CegarLoopResult]: For program point L148(lines 125 149) no Hoare annotation was computed. [2020-08-18 23:23:48,000 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 101 156) no Hoare annotation was computed. [2020-08-18 23:23:48,001 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 101 156) no Hoare annotation was computed. [2020-08-18 23:23:48,001 INFO L268 CegarLoopResult]: For program point L132(lines 132 136) no Hoare annotation was computed. [2020-08-18 23:23:48,001 INFO L268 CegarLoopResult]: For program point L132-1(lines 132 136) no Hoare annotation was computed. [2020-08-18 23:23:48,001 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 101 156) no Hoare annotation was computed. [2020-08-18 23:23:48,001 INFO L268 CegarLoopResult]: For program point L189(lines 189 193) no Hoare annotation was computed. [2020-08-18 23:23:48,002 INFO L268 CegarLoopResult]: For program point L189-1(lines 189 193) no Hoare annotation was computed. [2020-08-18 23:23:48,002 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 23:23:48,002 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 157 216) no Hoare annotation was computed. [2020-08-18 23:23:48,002 INFO L268 CegarLoopResult]: For program point L183-2(lines 183 208) no Hoare annotation was computed. [2020-08-18 23:23:48,002 INFO L268 CegarLoopResult]: For program point L209(lines 182 210) no Hoare annotation was computed. [2020-08-18 23:23:48,002 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 157 216) no Hoare annotation was computed. [2020-08-18 23:23:48,003 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 23:23:48,003 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 157 216) no Hoare annotation was computed. [2020-08-18 23:23:48,003 INFO L268 CegarLoopResult]: For program point L202-1(line 202) no Hoare annotation was computed. [2020-08-18 23:23:48,003 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 532 538) the Hoare annotation is: true [2020-08-18 23:23:48,003 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 532 538) no Hoare annotation was computed. [2020-08-18 23:23:48,003 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 539 547) no Hoare annotation was computed. [2020-08-18 23:23:48,004 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 539 547) the Hoare annotation is: true [2020-08-18 23:23:48,004 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 539 547) no Hoare annotation was computed. [2020-08-18 23:23:48,004 INFO L264 CegarLoopResult]: At program point L831(line 831) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-18 23:23:48,004 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 817 841) the Hoare annotation is: true [2020-08-18 23:23:48,007 INFO L268 CegarLoopResult]: For program point L829(lines 829 835) no Hoare annotation was computed. [2020-08-18 23:23:48,007 INFO L264 CegarLoopResult]: At program point L827(line 827) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-18 23:23:48,007 INFO L268 CegarLoopResult]: For program point L827-1(line 827) no Hoare annotation was computed. [2020-08-18 23:23:48,008 INFO L268 CegarLoopResult]: For program point L825(lines 825 838) no Hoare annotation was computed. [2020-08-18 23:23:48,008 INFO L268 CegarLoopResult]: For program point L825-1(lines 817 841) no Hoare annotation was computed. [2020-08-18 23:23:48,008 INFO L271 CegarLoopResult]: At program point L823(line 823) the Hoare annotation is: true [2020-08-18 23:23:48,008 INFO L268 CegarLoopResult]: For program point L823-1(line 823) no Hoare annotation was computed. [2020-08-18 23:23:48,008 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 817 841) no Hoare annotation was computed. [2020-08-18 23:23:48,008 INFO L264 CegarLoopResult]: At program point L927(line 927) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~8 ~systemActive~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= main_~tmp~8 ~waterLevel~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-18 23:23:48,009 INFO L264 CegarLoopResult]: At program point L927-1(line 927) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~8 ~systemActive~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= main_~tmp~8 ~waterLevel~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-18 23:23:48,009 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 915 937) 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))) [2020-08-18 23:23:48,009 INFO L268 CegarLoopResult]: For program point L925(lines 925 932) no Hoare annotation was computed. [2020-08-18 23:23:48,009 INFO L268 CegarLoopResult]: For program point L925-1(lines 925 932) no Hoare annotation was computed. [2020-08-18 23:23:48,009 INFO L268 CegarLoopResult]: For program point L923(line 923) no Hoare annotation was computed. [2020-08-18 23:23:48,009 INFO L264 CegarLoopResult]: At program point L922(line 922) 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))) [2020-08-18 23:23:48,010 INFO L264 CegarLoopResult]: At program point L921(line 921) 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))) [2020-08-18 23:23:48,010 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 915 937) no Hoare annotation was computed. [2020-08-18 23:23:48,010 INFO L264 CegarLoopResult]: At program point L921-1(line 921) 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))) [2020-08-18 23:23:48,010 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 915 937) no Hoare annotation was computed. [2020-08-18 23:23:48,010 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 874 897) no Hoare annotation was computed. [2020-08-18 23:23:48,010 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 874 897) no Hoare annotation was computed. [2020-08-18 23:23:48,011 INFO L268 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-08-18 23:23:48,011 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 874 897) no Hoare annotation was computed. [2020-08-18 23:23:48,011 INFO L268 CegarLoopResult]: For program point L891(line 891) no Hoare annotation was computed. [2020-08-18 23:23:48,011 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-08-18 23:23:48,011 INFO L268 CegarLoopResult]: For program point L889(line 889) no Hoare annotation was computed. [2020-08-18 23:23:48,011 INFO L268 CegarLoopResult]: For program point L888(line 888) no Hoare annotation was computed. [2020-08-18 23:23:48,011 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-08-18 23:23:48,012 INFO L268 CegarLoopResult]: For program point L886(line 886) no Hoare annotation was computed. [2020-08-18 23:23:48,012 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-08-18 23:23:48,012 INFO L268 CegarLoopResult]: For program point L884(line 884) no Hoare annotation was computed. [2020-08-18 23:23:48,012 INFO L268 CegarLoopResult]: For program point L883(line 883) no Hoare annotation was computed. [2020-08-18 23:23:48,012 INFO L268 CegarLoopResult]: For program point L882(line 882) no Hoare annotation was computed. [2020-08-18 23:23:48,012 INFO L268 CegarLoopResult]: For program point L881(line 881) no Hoare annotation was computed. [2020-08-18 23:23:48,012 INFO L268 CegarLoopResult]: For program point L880(line 880) no Hoare annotation was computed. [2020-08-18 23:23:48,013 INFO L268 CegarLoopResult]: For program point L879(line 879) no Hoare annotation was computed. [2020-08-18 23:23:48,013 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 801 815) no Hoare annotation was computed. [2020-08-18 23:23:48,013 INFO L264 CegarLoopResult]: At program point L807(line 807) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0))) [2020-08-18 23:23:48,013 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 801 815) 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))))) [2020-08-18 23:23:48,013 INFO L268 CegarLoopResult]: For program point L805(lines 805 811) no Hoare annotation was computed. [2020-08-18 23:23:48,014 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 801 815) no Hoare annotation was computed. [2020-08-18 23:23:48,014 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 737 745) no Hoare annotation was computed. [2020-08-18 23:23:48,014 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 737 745) the Hoare annotation is: true [2020-08-18 23:23:48,014 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 737 745) no Hoare annotation was computed. [2020-08-18 23:23:48,014 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 782 800) the Hoare annotation is: true [2020-08-18 23:23:48,014 INFO L268 CegarLoopResult]: For program point L791(lines 791 795) no Hoare annotation was computed. [2020-08-18 23:23:48,014 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 782 800) no Hoare annotation was computed. [2020-08-18 23:23:48,015 INFO L271 CegarLoopResult]: At program point L789(line 789) the Hoare annotation is: true [2020-08-18 23:23:48,015 INFO L268 CegarLoopResult]: For program point L791-2(lines 791 795) no Hoare annotation was computed. [2020-08-18 23:23:48,015 INFO L268 CegarLoopResult]: For program point L789-1(line 789) no Hoare annotation was computed. [2020-08-18 23:23:48,015 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 782 800) no Hoare annotation was computed. [2020-08-18 23:23:48,015 INFO L268 CegarLoopResult]: For program point L765(lines 765 773) no Hoare annotation was computed. [2020-08-18 23:23:48,015 INFO L268 CegarLoopResult]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2020-08-18 23:23:48,015 INFO L268 CegarLoopResult]: For program point L753(lines 753 761) no Hoare annotation was computed. [2020-08-18 23:23:48,016 INFO L268 CegarLoopResult]: For program point L753-2(lines 753 761) no Hoare annotation was computed. [2020-08-18 23:23:48,016 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 746 781) no Hoare annotation was computed. [2020-08-18 23:23:48,016 INFO L268 CegarLoopResult]: For program point L776(line 776) no Hoare annotation was computed. [2020-08-18 23:23:48,016 INFO L268 CegarLoopResult]: For program point L776-1(line 776) no Hoare annotation was computed. [2020-08-18 23:23:48,016 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 746 781) no Hoare annotation was computed. [2020-08-18 23:23:48,016 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 746 781) no Hoare annotation was computed. [2020-08-18 23:23:48,016 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 525 531) no Hoare annotation was computed. [2020-08-18 23:23:48,017 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 525 531) the Hoare annotation is: true [2020-08-18 23:23:48,017 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 55 100) no Hoare annotation was computed. [2020-08-18 23:23:48,017 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 55 100) no Hoare annotation was computed. [2020-08-18 23:23:48,017 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 55 100) no Hoare annotation was computed. [2020-08-18 23:23:48,017 INFO L268 CegarLoopResult]: For program point L382(lines 382 402) no Hoare annotation was computed. [2020-08-18 23:23:48,017 INFO L268 CegarLoopResult]: For program point L382-1(lines 382 402) no Hoare annotation was computed. [2020-08-18 23:23:48,017 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 368 413) no Hoare annotation was computed. [2020-08-18 23:23:48,018 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 368 413) no Hoare annotation was computed. [2020-08-18 23:23:48,018 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 368 413) no Hoare annotation was computed. [2020-08-18 23:23:48,018 INFO L268 CegarLoopResult]: For program point L388(lines 388 395) no Hoare annotation was computed. [2020-08-18 23:23:48,018 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 905 914) 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))) [2020-08-18 23:23:48,018 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 905 914) no Hoare annotation was computed. [2020-08-18 23:23:48,018 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 905 914) no Hoare annotation was computed. [2020-08-18 23:23:48,018 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 726 736) the Hoare annotation is: true [2020-08-18 23:23:48,019 INFO L271 CegarLoopResult]: At program point L731(line 731) the Hoare annotation is: true [2020-08-18 23:23:48,019 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 726 736) no Hoare annotation was computed. [2020-08-18 23:23:48,019 INFO L268 CegarLoopResult]: For program point L731-1(line 731) no Hoare annotation was computed. [2020-08-18 23:23:48,019 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 726 736) no Hoare annotation was computed. [2020-08-18 23:23:48,019 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 718 725) the Hoare annotation is: true [2020-08-18 23:23:48,019 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 718 725) no Hoare annotation was computed. [2020-08-18 23:23:48,019 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 718 725) no Hoare annotation was computed. [2020-08-18 23:23:48,020 INFO L264 CegarLoopResult]: At program point L704(line 704) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 23:23:48,020 INFO L268 CegarLoopResult]: For program point L704-1(lines 685 709) no Hoare annotation was computed. [2020-08-18 23:23:48,020 INFO L264 CegarLoopResult]: At program point L699(line 699) 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))) [2020-08-18 23:23:48,020 INFO L264 CegarLoopResult]: At program point L695(line 695) 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))) [2020-08-18 23:23:48,020 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 685 709) no Hoare annotation was computed. [2020-08-18 23:23:48,020 INFO L268 CegarLoopResult]: For program point L693(lines 693 701) no Hoare annotation was computed. [2020-08-18 23:23:48,021 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 685 709) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 23:23:48,021 INFO L264 CegarLoopResult]: At program point L691(line 691) 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))) [2020-08-18 23:23:48,021 INFO L268 CegarLoopResult]: For program point L691-1(line 691) no Hoare annotation was computed. [2020-08-18 23:23:48,021 INFO L268 CegarLoopResult]: For program point L689(lines 689 706) no Hoare annotation was computed. [2020-08-18 23:23:48,021 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 651 657) no Hoare annotation was computed. [2020-08-18 23:23:48,021 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 651 657) the Hoare annotation is: true [2020-08-18 23:23:48,022 INFO L264 CegarLoopResult]: At program point testENTRY(lines 552 617) 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))) [2020-08-18 23:23:48,022 INFO L264 CegarLoopResult]: At program point L607(lines 562 609) 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))) [2020-08-18 23:23:48,022 INFO L264 CegarLoopResult]: At program point L574(line 574) 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))) [2020-08-18 23:23:48,022 INFO L268 CegarLoopResult]: For program point L572(lines 572 578) no Hoare annotation was computed. [2020-08-18 23:23:48,022 INFO L268 CegarLoopResult]: For program point L572-1(lines 572 578) no Hoare annotation was computed. [2020-08-18 23:23:48,022 INFO L268 CegarLoopResult]: For program point testFINAL(lines 552 617) no Hoare annotation was computed. [2020-08-18 23:23:48,022 INFO L268 CegarLoopResult]: For program point L564(lines 564 568) no Hoare annotation was computed. [2020-08-18 23:23:48,023 INFO L264 CegarLoopResult]: At program point L610(lines 561 611) the Hoare annotation is: (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-18 23:23:48,023 INFO L264 CegarLoopResult]: At program point L600(line 600) 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)))) [2020-08-18 23:23:48,023 INFO L268 CegarLoopResult]: For program point L598(lines 598 604) no Hoare annotation was computed. [2020-08-18 23:23:48,023 INFO L264 CegarLoopResult]: At program point L598-1(lines 592 605) 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))) [2020-08-18 23:23:48,023 INFO L268 CegarLoopResult]: For program point L563(lines 562 609) no Hoare annotation was computed. [2020-08-18 23:23:48,023 INFO L268 CegarLoopResult]: For program point L592(lines 592 605) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L264 CegarLoopResult]: At program point L584(line 584) 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))) [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point L582(lines 582 588) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point L582-1(lines 582 588) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point testEXIT(lines 552 617) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 322 367) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point L342(lines 342 349) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 322 367) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 322 367) no Hoare annotation was computed. [2020-08-18 23:23:48,024 INFO L268 CegarLoopResult]: For program point L336(lines 336 356) no Hoare annotation was computed. [2020-08-18 23:23:48,025 INFO L268 CegarLoopResult]: For program point L336-1(lines 336 356) no Hoare annotation was computed. [2020-08-18 23:23:48,025 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 501 509) no Hoare annotation was computed. [2020-08-18 23:23:48,025 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 501 509) the Hoare annotation is: true [2020-08-18 23:23:48,025 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 501 509) no Hoare annotation was computed. [2020-08-18 23:23:48,025 INFO L268 CegarLoopResult]: For program point L477(lines 477 485) no Hoare annotation was computed. [2020-08-18 23:23:48,025 INFO L268 CegarLoopResult]: For program point L477-2(lines 477 485) no Hoare annotation was computed. [2020-08-18 23:23:48,025 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 469 491) no Hoare annotation was computed. [2020-08-18 23:23:48,025 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 469 491) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 469 491) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point L289(lines 267 290) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 219 321) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point L248(lines 248 264) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point L308(lines 308 315) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point L269(lines 268 288) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point L300(line 300) no Hoare annotation was computed. [2020-08-18 23:23:48,026 INFO L268 CegarLoopResult]: For program point L300-1(line 300) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point L265(lines 265 306) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 219 321) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point L284(line 284) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point L284-1(line 284) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point L243(lines 243 247) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point L307(lines 307 318) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 219 321) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point L270(lines 270 274) no Hoare annotation was computed. [2020-08-18 23:23:48,027 INFO L268 CegarLoopResult]: For program point L268-2(lines 268 288) no Hoare annotation was computed. [2020-08-18 23:23:48,028 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 515 524) no Hoare annotation was computed. [2020-08-18 23:23:48,028 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 515 524) no Hoare annotation was computed. [2020-08-18 23:23:48,028 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 515 524) no Hoare annotation was computed. [2020-08-18 23:23:48,028 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:23:48,028 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~string30.offset| |old(#t~string30.offset)|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |#t~string32.base| |old(#t~string32.base)|) (= |#t~string66.offset| |old(#t~string66.offset)|) (= |#t~string28.base| |old(#t~string28.base)|) (= |#t~string31.base| |old(#t~string31.base)|) (= |#t~string21.base| |old(#t~string21.base)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string27.offset| |old(#t~string27.offset)|) (= |#t~string36.base| |old(#t~string36.base)|) (= |#t~string19.offset| |old(#t~string19.offset)|) (= |#t~string64.base| |old(#t~string64.base)|) (= |#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~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~string66.base| |old(#t~string66.base)|) (= |#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~string68.offset| |old(#t~string68.offset)|) (= |#t~string54.offset| |old(#t~string54.offset)|) (= |#t~string62.offset| |old(#t~string62.offset)|) (= |#t~string28.offset| |old(#t~string28.offset)|) (= |#t~string64.offset| |old(#t~string64.offset)|) (= |#t~string19.base| |old(#t~string19.base)|) (= |#t~string22.base| |old(#t~string22.base)|) (= |#t~string23.base| |old(#t~string23.base)|) (= |#t~string68.base| |old(#t~string68.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)|) (= ~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)|)) [2020-08-18 23:23:48,029 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:23:48,029 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 710 717) no Hoare annotation was computed. [2020-08-18 23:23:48,029 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 710 717) no Hoare annotation was computed. [2020-08-18 23:23:48,029 INFO L268 CegarLoopResult]: For program point activatePumpENTRY(lines 710 717) no Hoare annotation was computed. [2020-08-18 23:23:48,029 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 492 500) the Hoare annotation is: true [2020-08-18 23:23:48,029 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 492 500) no Hoare annotation was computed. [2020-08-18 23:23:48,029 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 492 500) no Hoare annotation was computed. [2020-08-18 23:23:48,029 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:23:48,030 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-08-18 23:23:48,030 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:23:48,030 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 448 459) 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))))) [2020-08-18 23:23:48,030 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 448 459) no Hoare annotation was computed. [2020-08-18 23:23:48,030 INFO L268 CegarLoopResult]: For program point L452-1(lines 448 459) no Hoare annotation was computed. [2020-08-18 23:23:48,030 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 460 468) the Hoare annotation is: true [2020-08-18 23:23:48,030 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 460 468) no Hoare annotation was computed. [2020-08-18 23:23:48,030 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 460 468) no Hoare annotation was computed. [2020-08-18 23:23:48,031 INFO L264 CegarLoopResult]: At program point L640(line 640) 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))) [2020-08-18 23:23:48,031 INFO L264 CegarLoopResult]: At program point L638(lines 638 644) 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))) [2020-08-18 23:23:48,031 INFO L264 CegarLoopResult]: At program point L633(line 633) 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))) [2020-08-18 23:23:48,031 INFO L268 CegarLoopResult]: For program point L631(lines 630 649) no Hoare annotation was computed. [2020-08-18 23:23:48,031 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 627 650) 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))) [2020-08-18 23:23:48,032 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 627 650) no Hoare annotation was computed. [2020-08-18 23:23:48,032 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 627 650) no Hoare annotation was computed. [2020-08-18 23:23:48,032 INFO L268 CegarLoopResult]: For program point L865(line 865) no Hoare annotation was computed. [2020-08-18 23:23:48,032 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 844 873) no Hoare annotation was computed. [2020-08-18 23:23:48,032 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 844 873) the Hoare annotation is: true [2020-08-18 23:23:48,032 INFO L268 CegarLoopResult]: For program point L858(lines 858 862) no Hoare annotation was computed. [2020-08-18 23:23:48,032 INFO L271 CegarLoopResult]: At program point L858-1(lines 858 862) the Hoare annotation is: true [2020-08-18 23:23:48,033 INFO L268 CegarLoopResult]: For program point L855(line 855) no Hoare annotation was computed. [2020-08-18 23:23:48,033 INFO L271 CegarLoopResult]: At program point L854-2(lines 854 868) the Hoare annotation is: true [2020-08-18 23:23:48,033 INFO L271 CegarLoopResult]: At program point L850(line 850) the Hoare annotation is: true [2020-08-18 23:23:48,033 INFO L268 CegarLoopResult]: For program point L850-1(line 850) no Hoare annotation was computed. [2020-08-18 23:23:48,033 INFO L271 CegarLoopResult]: At program point L869(lines 844 873) the Hoare annotation is: true [2020-08-18 23:23:48,033 INFO L271 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 424 435) the Hoare annotation is: true [2020-08-18 23:23:48,033 INFO L268 CegarLoopResult]: For program point L428-1(lines 424 435) no Hoare annotation was computed. [2020-08-18 23:23:48,033 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 424 435) no Hoare annotation was computed. [2020-08-18 23:23:48,034 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 898 904) no Hoare annotation was computed. [2020-08-18 23:23:48,034 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 898 904) the Hoare annotation is: true [2020-08-18 23:23:48,034 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:23:48,034 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-08-18 23:23:48,034 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 23:23:48,034 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:23:48,034 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 436 447) no Hoare annotation was computed. [2020-08-18 23:23:48,035 INFO L268 CegarLoopResult]: For program point L440-1(lines 436 447) no Hoare annotation was computed. [2020-08-18 23:23:48,035 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 436 447) 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))) [2020-08-18 23:23:48,035 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2020-08-18 23:23:48,035 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-08-18 23:23:48,035 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2020-08-18 23:23:48,035 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2020-08-18 23:23:48,035 INFO L264 CegarLoopResult]: At program point L673(line 673) 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))) [2020-08-18 23:23:48,036 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 659 683) no Hoare annotation was computed. [2020-08-18 23:23:48,036 INFO L264 CegarLoopResult]: At program point L669(line 669) 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))) [2020-08-18 23:23:48,036 INFO L268 CegarLoopResult]: For program point L667(lines 667 675) no Hoare annotation was computed. [2020-08-18 23:23:48,036 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 659 683) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 23:23:48,036 INFO L264 CegarLoopResult]: At program point L665(line 665) 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))) [2020-08-18 23:23:48,036 INFO L268 CegarLoopResult]: For program point L665-1(line 665) no Hoare annotation was computed. [2020-08-18 23:23:48,037 INFO L268 CegarLoopResult]: For program point L663(lines 663 680) no Hoare annotation was computed. [2020-08-18 23:23:48,037 INFO L264 CegarLoopResult]: At program point L678(line 678) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 23:23:48,037 INFO L268 CegarLoopResult]: For program point L678-1(lines 659 683) no Hoare annotation was computed. [2020-08-18 23:23:48,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 11:23:48 BoogieIcfgContainer [2020-08-18 23:23:48,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 23:23:48,066 INFO L168 Benchmark]: Toolchain (without parser) took 34180.79 ms. Allocated memory was 140.5 MB in the beginning and 705.2 MB in the end (delta: 564.7 MB). Free memory was 101.9 MB in the beginning and 638.5 MB in the end (delta: -536.7 MB). Peak memory consumption was 554.6 MB. Max. memory is 7.1 GB. [2020-08-18 23:23:48,067 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 23:23:48,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.92 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 173.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-08-18 23:23:48,069 INFO L168 Benchmark]: Boogie Preprocessor took 90.23 ms. Allocated memory is still 203.4 MB. Free memory was 173.1 MB in the beginning and 168.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-18 23:23:48,070 INFO L168 Benchmark]: RCFGBuilder took 1195.17 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 197.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-08-18 23:23:48,071 INFO L168 Benchmark]: TraceAbstraction took 32167.28 ms. Allocated memory was 236.5 MB in the beginning and 705.2 MB in the end (delta: 468.7 MB). Free memory was 197.4 MB in the beginning and 638.5 MB in the end (delta: -441.2 MB). Peak memory consumption was 554.2 MB. Max. memory is 7.1 GB. [2020-08-18 23:23:48,074 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.92 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 173.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.23 ms. Allocated memory is still 203.4 MB. Free memory was 173.1 MB in the beginning and 168.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1195.17 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 197.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32167.28 ms. Allocated memory was 236.5 MB in the beginning and 705.2 MB in the end (delta: 468.7 MB). Free memory was 197.4 MB in the beginning and 638.5 MB in the end (delta: -441.2 MB). Peak memory consumption was 554.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 562]: 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: 561]: Loop Invariant Derived loop invariant: (!(\old(systemActive) == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0) - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 637 SDtfs, 1445 SDslu, 568 SDs, 0 SdLazy, 3221 SolverSat, 950 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=694occurred 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, 245 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 812 PreInvPairs, 863 NumberOfFragments, 1150 HoareAnnotationTreeSize, 812 FomulaSimplifications, 69214 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 60 FomulaSimplificationsInter, 21499 FormulaSimplificationTreeSizeReductionInter, 10.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s 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...