/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:33:52,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:33:52,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:33:52,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:33:52,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:33:52,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:33:52,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:33:52,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:33:52,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:33:52,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:33:52,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:33:52,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:33:52,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:33:52,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:33:52,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:33:52,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:33:52,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:33:52,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:33:52,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:33:52,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:33:52,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:33:52,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:33:52,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:33:52,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:33:52,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:33:52,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:33:52,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:33:52,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:33:52,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:33:52,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:33:52,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:33:52,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:33:52,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:33:52,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:33:52,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:33:52,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:33:52,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:33:52,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:33:52,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:33:52,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:33:52,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:33:52,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:33:52,724 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:33:52,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:33:52,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:33:52,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:33:52,726 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:33:52,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:33:52,727 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:33:52,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:33:52,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:33:52,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:33:52,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:33:52,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:33:52,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:33:52,728 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:33:52,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:33:52,728 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:33:52,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:33:52,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:33:52,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:33:52,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:33:52,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:33:52,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:33:52,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:33:52,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:33:52,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:33:52,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:33:52,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:33:52,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:33:52,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:33:52,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:33:53,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:33:53,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:33:53,013 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:33:53,014 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:33:53,015 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-11-07 04:33:53,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a708e74b/a106b89d8bf949dc8115f4ed500666a2/FLAG4745a405f [2019-11-07 04:33:53,620 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:33:53,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-11-07 04:33:53,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a708e74b/a106b89d8bf949dc8115f4ed500666a2/FLAG4745a405f [2019-11-07 04:33:53,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a708e74b/a106b89d8bf949dc8115f4ed500666a2 [2019-11-07 04:33:53,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:33:53,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:33:53,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:53,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:33:53,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:33:53,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:53" (1/1) ... [2019-11-07 04:33:53,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4945b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:53, skipping insertion in model container [2019-11-07 04:33:53,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:53" (1/1) ... [2019-11-07 04:33:53,997 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:33:54,063 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:33:54,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:54,527 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:33:54,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:54,650 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:33:54,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54 WrapperNode [2019-11-07 04:33:54,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:54,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:33:54,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:33:54,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:33:54,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... [2019-11-07 04:33:54,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... [2019-11-07 04:33:54,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... [2019-11-07 04:33:54,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... [2019-11-07 04:33:54,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... [2019-11-07 04:33:54,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... [2019-11-07 04:33:54,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... [2019-11-07 04:33:54,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:33:54,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:33:54,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:33:54,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:33:54,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-11-07 04:33:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:33:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:33:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:33:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:33:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:33:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:33:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:33:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:33:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:33:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:33:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:33:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:33:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:33:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:33:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:33:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:33:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:33:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:33:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:33:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:33:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:33:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:33:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:33:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:33:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:33:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:33:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:33:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:33:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:33:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:33:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:33:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:33:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:33:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:33:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:33:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:33:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:33:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:33:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:33:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:33:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:33:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:33:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:33:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:33:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:33:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:33:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:33:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:33:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:33:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:33:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:33:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:33:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:33:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:33:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:33:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:33:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:33:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:33:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:33:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:33:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:33:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:33:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:33:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:33:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:33:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:33:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:33:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:33:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:33:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:33:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:33:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:33:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:33:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:33:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:33:56,401 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:33:56,402 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:33:56,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:56 BoogieIcfgContainer [2019-11-07 04:33:56,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:33:56,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:33:56,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:33:56,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:33:56,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:33:53" (1/3) ... [2019-11-07 04:33:56,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99132d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:56, skipping insertion in model container [2019-11-07 04:33:56,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:54" (2/3) ... [2019-11-07 04:33:56,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99132d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:56, skipping insertion in model container [2019-11-07 04:33:56,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:56" (3/3) ... [2019-11-07 04:33:56,415 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2019-11-07 04:33:56,425 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:33:56,435 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:33:56,447 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:33:56,477 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:33:56,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:33:56,477 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:33:56,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:33:56,478 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:33:56,478 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:33:56,478 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:33:56,478 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:33:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-11-07 04:33:56,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-07 04:33:56,511 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:56,512 INFO L410 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] [2019-11-07 04:33:56,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:56,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1507052969, now seen corresponding path program 1 times [2019-11-07 04:33:56,531 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:56,531 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532621342] [2019-11-07 04:33:56,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:56,862 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532621342] [2019-11-07 04:33:56,863 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:56,863 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:33:56,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400224791] [2019-11-07 04:33:56,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:33:56,870 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:56,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:33:56,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:33:56,888 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2019-11-07 04:33:56,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:56,936 INFO L93 Difference]: Finished difference Result 257 states and 310 transitions. [2019-11-07 04:33:56,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:33:56,938 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-11-07 04:33:56,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:56,953 INFO L225 Difference]: With dead ends: 257 [2019-11-07 04:33:56,953 INFO L226 Difference]: Without dead ends: 129 [2019-11-07 04:33:56,959 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:33:56,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-07 04:33:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-11-07 04:33:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-07 04:33:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-11-07 04:33:57,024 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 42 [2019-11-07 04:33:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:57,025 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-11-07 04:33:57,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:33:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-11-07 04:33:57,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 04:33:57,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:57,029 INFO L410 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] [2019-11-07 04:33:57,030 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:57,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:57,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1923432424, now seen corresponding path program 1 times [2019-11-07 04:33:57,031 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:57,031 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756910334] [2019-11-07 04:33:57,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:57,184 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756910334] [2019-11-07 04:33:57,184 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:57,184 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:33:57,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552260086] [2019-11-07 04:33:57,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:33:57,187 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:57,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:33:57,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:33:57,189 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 3 states. [2019-11-07 04:33:57,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:57,237 INFO L93 Difference]: Finished difference Result 215 states and 249 transitions. [2019-11-07 04:33:57,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:33:57,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-11-07 04:33:57,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:57,244 INFO L225 Difference]: With dead ends: 215 [2019-11-07 04:33:57,244 INFO L226 Difference]: Without dead ends: 121 [2019-11-07 04:33:57,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:33:57,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-07 04:33:57,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-11-07 04:33:57,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-07 04:33:57,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-11-07 04:33:57,282 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 43 [2019-11-07 04:33:57,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:57,283 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-11-07 04:33:57,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:33:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-11-07 04:33:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-07 04:33:57,290 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:57,290 INFO L410 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] [2019-11-07 04:33:57,291 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:57,291 INFO L82 PathProgramCache]: Analyzing trace with hash 905106011, now seen corresponding path program 1 times [2019-11-07 04:33:57,292 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:57,292 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568893644] [2019-11-07 04:33:57,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:57,465 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568893644] [2019-11-07 04:33:57,465 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:57,465 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:33:57,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159570347] [2019-11-07 04:33:57,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:33:57,466 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:57,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:33:57,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:33:57,467 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 7 states. [2019-11-07 04:33:57,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:57,866 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2019-11-07 04:33:57,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:33:57,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-11-07 04:33:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:57,869 INFO L225 Difference]: With dead ends: 220 [2019-11-07 04:33:57,869 INFO L226 Difference]: Without dead ends: 121 [2019-11-07 04:33:57,870 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:33:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-07 04:33:57,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-11-07 04:33:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-07 04:33:57,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2019-11-07 04:33:57,891 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 45 [2019-11-07 04:33:57,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:57,892 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2019-11-07 04:33:57,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:33:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2019-11-07 04:33:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-07 04:33:57,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:57,898 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:57,898 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:57,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:57,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1684050227, now seen corresponding path program 1 times [2019-11-07 04:33:57,899 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:57,899 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37799127] [2019-11-07 04:33:57,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:58,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:58,055 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37799127] [2019-11-07 04:33:58,055 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:58,055 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:33:58,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5955289] [2019-11-07 04:33:58,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:33:58,056 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:58,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:33:58,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:33:58,057 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand 5 states. [2019-11-07 04:33:58,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:58,603 INFO L93 Difference]: Finished difference Result 318 states and 372 transitions. [2019-11-07 04:33:58,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:33:58,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-11-07 04:33:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:58,606 INFO L225 Difference]: With dead ends: 318 [2019-11-07 04:33:58,606 INFO L226 Difference]: Without dead ends: 219 [2019-11-07 04:33:58,610 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:33:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-11-07 04:33:58,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 204. [2019-11-07 04:33:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-11-07 04:33:58,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2019-11-07 04:33:58,659 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 62 [2019-11-07 04:33:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:58,662 INFO L462 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2019-11-07 04:33:58,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:33:58,663 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2019-11-07 04:33:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-07 04:33:58,668 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:58,668 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:58,669 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:58,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1105839931, now seen corresponding path program 1 times [2019-11-07 04:33:58,669 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:58,669 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181855714] [2019-11-07 04:33:58,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:58,826 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181855714] [2019-11-07 04:33:58,826 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:58,826 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:33:58,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046101580] [2019-11-07 04:33:58,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:33:58,827 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:58,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:33:58,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:33:58,828 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 10 states. [2019-11-07 04:33:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:59,401 INFO L93 Difference]: Finished difference Result 598 states and 677 transitions. [2019-11-07 04:33:59,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:33:59,402 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-11-07 04:33:59,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:59,406 INFO L225 Difference]: With dead ends: 598 [2019-11-07 04:33:59,407 INFO L226 Difference]: Without dead ends: 416 [2019-11-07 04:33:59,408 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:33:59,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-11-07 04:33:59,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 402. [2019-11-07 04:33:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-11-07 04:33:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 442 transitions. [2019-11-07 04:33:59,449 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 442 transitions. Word has length 72 [2019-11-07 04:33:59,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:59,450 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 442 transitions. [2019-11-07 04:33:59,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:33:59,450 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 442 transitions. [2019-11-07 04:33:59,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-07 04:33:59,453 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:59,454 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:59,454 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:59,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1845346902, now seen corresponding path program 1 times [2019-11-07 04:33:59,455 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:59,455 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931328037] [2019-11-07 04:33:59,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 04:33:59,808 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931328037] [2019-11-07 04:33:59,809 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715892980] [2019-11-07 04:33:59,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:34:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:00,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-07 04:34:00,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:34:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-07 04:34:00,326 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:34:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:34:00,880 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:34:00,881 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [15] total 27 [2019-11-07 04:34:00,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909176530] [2019-11-07 04:34:00,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:34:00,885 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:34:00,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:34:00,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2019-11-07 04:34:00,886 INFO L87 Difference]: Start difference. First operand 402 states and 442 transitions. Second operand 14 states. [2019-11-07 04:34:01,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:34:01,697 INFO L93 Difference]: Finished difference Result 963 states and 1064 transitions. [2019-11-07 04:34:01,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:34:01,697 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 125 [2019-11-07 04:34:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:34:01,703 INFO L225 Difference]: With dead ends: 963 [2019-11-07 04:34:01,703 INFO L226 Difference]: Without dead ends: 781 [2019-11-07 04:34:01,704 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2019-11-07 04:34:01,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-11-07 04:34:01,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 778. [2019-11-07 04:34:01,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2019-11-07 04:34:01,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 857 transitions. [2019-11-07 04:34:01,762 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 857 transitions. Word has length 125 [2019-11-07 04:34:01,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:34:01,762 INFO L462 AbstractCegarLoop]: Abstraction has 778 states and 857 transitions. [2019-11-07 04:34:01,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:34:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 857 transitions. [2019-11-07 04:34:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-07 04:34:01,767 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:34:01,767 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:34:01,973 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:34:01,973 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:34:01,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:34:01,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1457497724, now seen corresponding path program 1 times [2019-11-07 04:34:01,975 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:34:01,975 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669904033] [2019-11-07 04:34:01,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:34:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:02,113 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 04:34:02,114 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669904033] [2019-11-07 04:34:02,114 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387930031] [2019-11-07 04:34:02,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:34:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:02,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 04:34:02,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:34:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-07 04:34:02,352 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:34:02,576 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-11-07 04:34:02,577 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:34:02,577 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-11-07 04:34:02,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104328289] [2019-11-07 04:34:02,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:34:02,580 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:34:02,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:34:02,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:34:02,580 INFO L87 Difference]: Start difference. First operand 778 states and 857 transitions. Second operand 7 states. [2019-11-07 04:34:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:34:02,817 INFO L93 Difference]: Finished difference Result 793 states and 873 transitions. [2019-11-07 04:34:02,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:34:02,823 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2019-11-07 04:34:02,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:34:02,832 INFO L225 Difference]: With dead ends: 793 [2019-11-07 04:34:02,832 INFO L226 Difference]: Without dead ends: 790 [2019-11-07 04:34:02,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:34:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-07 04:34:02,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 778. [2019-11-07 04:34:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2019-11-07 04:34:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 855 transitions. [2019-11-07 04:34:02,891 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 855 transitions. Word has length 125 [2019-11-07 04:34:02,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:34:02,892 INFO L462 AbstractCegarLoop]: Abstraction has 778 states and 855 transitions. [2019-11-07 04:34:02,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:34:02,893 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 855 transitions. [2019-11-07 04:34:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-11-07 04:34:02,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:34:02,902 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:34:03,106 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:34:03,107 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:34:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:34:03,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1141164862, now seen corresponding path program 1 times [2019-11-07 04:34:03,108 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:34:03,108 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999639475] [2019-11-07 04:34:03,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:34:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-07 04:34:03,380 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999639475] [2019-11-07 04:34:03,380 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:34:03,381 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:34:03,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743835827] [2019-11-07 04:34:03,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:34:03,382 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:34:03,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:34:03,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:34:03,382 INFO L87 Difference]: Start difference. First operand 778 states and 855 transitions. Second operand 14 states. [2019-11-07 04:34:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:34:03,884 INFO L93 Difference]: Finished difference Result 1386 states and 1598 transitions. [2019-11-07 04:34:03,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:34:03,884 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2019-11-07 04:34:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:34:03,891 INFO L225 Difference]: With dead ends: 1386 [2019-11-07 04:34:03,891 INFO L226 Difference]: Without dead ends: 1026 [2019-11-07 04:34:03,893 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-11-07 04:34:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2019-11-07 04:34:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 890. [2019-11-07 04:34:03,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2019-11-07 04:34:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1001 transitions. [2019-11-07 04:34:03,958 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1001 transitions. Word has length 138 [2019-11-07 04:34:03,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:34:03,960 INFO L462 AbstractCegarLoop]: Abstraction has 890 states and 1001 transitions. [2019-11-07 04:34:03,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:34:03,960 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1001 transitions. [2019-11-07 04:34:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-07 04:34:03,965 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:34:03,966 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:34:03,966 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:34:03,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:34:03,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1282726032, now seen corresponding path program 1 times [2019-11-07 04:34:03,967 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:34:03,967 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086920899] [2019-11-07 04:34:03,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:34:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:34:04,237 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086920899] [2019-11-07 04:34:04,238 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428681379] [2019-11-07 04:34:04,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:34:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:04,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 56 conjunts are in the unsatisfiable core [2019-11-07 04:34:04,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:34:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 04:34:04,653 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:34:05,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,154 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:34:05,869 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [613248858] [2019-11-07 04:34:05,897 INFO L159 IcfgInterpreter]: Started Sifa with 113 locations of interest [2019-11-07 04:34:05,898 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:34:05,905 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:34:05,912 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:34:05,913 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:34:16,701 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-11-07 04:34:18,406 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:34:18,580 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:18,753 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:18,869 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:19,088 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:34:19,204 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:19,341 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:19,523 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:34:19,538 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-11-07 04:34:19,551 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-11-07 04:34:19,746 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:34:19,853 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:34:20,025 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:20,137 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:34:20,359 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:20,466 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:34:20,613 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:34:20,734 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:20,844 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:34:20,973 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:34:21,131 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:21,301 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:21,410 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:21,560 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:21,663 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:21,809 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:22,004 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:22,210 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:22,407 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:22,648 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:22,754 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:22,893 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:23,009 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-11-07 04:34:23,198 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-11-07 04:34:23,301 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-11-07 04:34:23,423 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:23,526 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-11-07 04:34:23,646 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-11-07 04:34:23,759 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:23,950 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:24,055 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:24,173 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:34:24,280 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:24,418 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:24,532 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:34:24,550 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 544 for LOIs [2019-11-07 04:34:24,564 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 542 for LOIs [2019-11-07 04:34:24,788 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 555 [2019-11-07 04:34:25,122 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:25,765 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 567 [2019-11-07 04:34:26,630 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 597 [2019-11-07 04:34:26,936 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 589 [2019-11-07 04:34:27,099 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 589 [2019-11-07 04:34:27,253 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 590 [2019-11-07 04:34:27,468 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 591 [2019-11-07 04:34:28,095 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:34:28,373 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:34:28,719 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 613 [2019-11-07 04:34:29,529 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-11-07 04:34:29,863 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-11-07 04:34:30,192 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 596 [2019-11-07 04:34:30,207 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 563 for LOIs [2019-11-07 04:34:30,221 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 137 for LOIs [2019-11-07 04:34:31,392 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 148 [2019-11-07 04:34:31,666 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 137 for LOIs [2019-11-07 04:34:31,669 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 136 for LOIs