java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-14 02:52:27,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 02:52:27,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 02:52:27,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 02:52:27,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 02:52:27,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 02:52:27,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 02:52:27,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 02:52:27,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 02:52:27,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 02:52:27,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 02:52:27,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 02:52:27,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 02:52:27,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 02:52:27,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 02:52:27,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 02:52:27,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 02:52:27,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 02:52:27,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 02:52:27,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 02:52:27,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 02:52:27,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 02:52:27,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 02:52:27,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 02:52:27,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 02:52:27,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 02:52:27,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 02:52:27,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 02:52:27,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 02:52:27,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 02:52:27,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 02:52:27,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 02:52:27,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 02:52:27,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 02:52:27,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 02:52:27,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 02:52:27,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 02:52:27,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 02:52:27,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 02:52:27,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 02:52:27,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 02:52:27,146 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 [2019-10-14 02:52:27,160 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 02:52:27,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 02:52:27,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 02:52:27,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 02:52:27,162 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 02:52:27,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 02:52:27,162 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 02:52:27,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 02:52:27,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 02:52:27,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 02:52:27,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 02:52:27,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 02:52:27,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 02:52:27,164 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 02:52:27,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 02:52:27,164 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 02:52:27,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 02:52:27,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 02:52:27,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 02:52:27,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 02:52:27,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 02:52:27,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 02:52:27,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 02:52:27,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 02:52:27,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 02:52:27,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 02:52:27,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 02:52:27,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 02:52:27,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 [2019-10-14 02:52:27,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 02:52:27,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 02:52:27,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 02:52:27,475 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 02:52:27,475 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 02:52:27,476 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2019-10-14 02:52:27,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f1048421/63e915817a3c4aed8c0b25a390eb563f/FLAGaeddcbcd3 [2019-10-14 02:52:28,163 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 02:52:28,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2019-10-14 02:52:28,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f1048421/63e915817a3c4aed8c0b25a390eb563f/FLAGaeddcbcd3 [2019-10-14 02:52:28,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f1048421/63e915817a3c4aed8c0b25a390eb563f [2019-10-14 02:52:28,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 02:52:28,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 02:52:28,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 02:52:28,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 02:52:28,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 02:52:28,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:52:28" (1/1) ... [2019-10-14 02:52:28,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720b1c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:28, skipping insertion in model container [2019-10-14 02:52:28,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:52:28" (1/1) ... [2019-10-14 02:52:28,457 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 02:52:28,513 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 02:52:28,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 02:52:28,912 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 02:52:29,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 02:52:29,051 INFO L192 MainTranslator]: Completed translation [2019-10-14 02:52:29,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29 WrapperNode [2019-10-14 02:52:29,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 02:52:29,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 02:52:29,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 02:52:29,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 02:52:29,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (1/1) ... [2019-10-14 02:52:29,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (1/1) ... [2019-10-14 02:52:29,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (1/1) ... [2019-10-14 02:52:29,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (1/1) ... [2019-10-14 02:52:29,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (1/1) ... [2019-10-14 02:52:29,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (1/1) ... [2019-10-14 02:52:29,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (1/1) ... [2019-10-14 02:52:29,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 02:52:29,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 02:52:29,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 02:52:29,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 02:52:29,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:52:29" (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 [2019-10-14 02:52:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 02:52:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 02:52:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 02:52:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 02:52:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 02:52:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 02:52:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 02:52:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 02:52:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 02:52:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 02:52:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 02:52:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 02:52:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 02:52:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 02:52:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 02:52:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 02:52:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 02:52:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 02:52:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 02:52:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 02:52:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 02:52:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 02:52:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 02:52:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 02:52:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 02:52:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 02:52:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 02:52:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 02:52:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 02:52:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 02:52:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 02:52:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 02:52:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 02:52:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-14 02:52:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 02:52:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 02:52:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 02:52:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 02:52:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 02:52:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 02:52:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 02:52:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 02:52:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 02:52:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 02:52:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 02:52:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 02:52:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 02:52:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 02:52:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 02:52:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 02:52:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 02:52:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 02:52:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 02:52:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 02:52:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 02:52:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 02:52:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 02:52:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 02:52:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 02:52:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 02:52:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 02:52:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 02:52:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 02:52:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 02:52:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 02:52:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 02:52:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 02:52:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 02:52:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 02:52:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 02:52:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 02:52:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 02:52:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 02:52:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 02:52:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 02:52:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 02:52:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 02:52:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 02:52:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 02:52:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-14 02:52:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 02:52:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 02:52:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 02:52:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 02:52:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 02:52:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 02:52:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 02:52:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 02:52:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 02:52:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 02:52:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 02:52:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 02:52:30,824 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 02:52:30,824 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 02:52:30,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:52:30 BoogieIcfgContainer [2019-10-14 02:52:30,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 02:52:30,827 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-14 02:52:30,827 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-14 02:52:30,827 INFO L275 PluginConnector]: Sifa initialized [2019-10-14 02:52:30,829 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:52:30" (1/1) ... [2019-10-14 02:52:30,829 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-10-14 02:52:30,859 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-14 02:52:30,862 INFO L169 IcfgInterpreter]: Building call graph [2019-10-14 02:52:30,875 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-14 02:52:30,890 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-14 02:52:30,892 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-14 02:52:40,562 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-14 02:52:42,573 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-14 02:52:42,730 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-14 02:52:42,880 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-14 02:52:43,053 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-14 02:52:43,306 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-14 02:52:43,330 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-14 02:52:43,400 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 542 for LOIs [2019-10-14 02:52:43,407 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 540 for LOIs [2019-10-14 02:52:43,640 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-14 02:52:43,897 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-14 02:52:44,536 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-14 02:52:44,999 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-14 02:52:45,666 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 188 [2019-10-14 02:52:45,787 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 02:52:47,035 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 171 [2019-10-14 02:52:50,969 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-10-14 02:52:50,972 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 136 for LOIs [2019-10-14 02:52:51,225 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 130 for LOIs [2019-10-14 02:52:51,231 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 143 for LOIs [2019-10-14 02:52:51,293 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-14 02:52:51,294 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-14 02:52:51,296 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 779#(and (<= |#t~string58.offset| 0) (<= |#t~string22.offset| 0) (<= 0 |#NULL.base|) (= |#t~string27.offset| 0) (<= 0 |#t~string20.offset|) (<= ~systemActive~0 1) (<= 0 |#t~string40.offset|) (<= ~head~0.offset 0) (= |#t~string62.offset| 0) (<= 0 |#t~string64.offset|) (= |#t~string32.offset| 0) (= 0 ~waterLevel~0) (<= 0 |#t~string60.offset|) (= |#NULL.base| 0) (= |#t~string38.offset| 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (<= 0 ~head~0.base) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string44.offset|) (<= |#t~string64.offset| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= |#t~string40.offset| 0) (<= |#t~string18.offset| 0) (<= 0 |#t~string36.offset|) (<= 0 ~waterLevel~0) (<= |#t~string36.offset| 0) (= |#t~string20.offset| 0) (= |#t~string56.offset| 0) (= |#t~string29.offset| 0) (<= |#t~string66.offset| 0) (= |#t~string42.offset| 0) (<= 0 |#NULL.offset|) (= |#t~string66.offset| 0) (<= |#t~string60.offset| 0) (= |#t~string64.offset| 0) (= ~head~0.base 0) (<= ~cleanupTimeShifts~0 4) (= ~cleanupTimeShifts~0 4) (= |#t~string68.offset| 0) (<= 0 |#t~string38.offset|) (<= |#NULL.base| 0) (= |#t~string18.offset| 0) (<= 4 ~cleanupTimeShifts~0) (= |#t~string31.offset| 0) (<= |#t~string38.offset| 0) (<= |#t~string68.offset| 0) (= |#t~string40.offset| 0) (= |#NULL.offset| 0) (= |#t~string23.offset| 0) (= |#t~string21.offset| 0) (<= 0 |#t~string62.offset|) (<= 0 |#t~string27.offset|) (<= ~head~0.base 0) (<= 0 |#t~string19.offset|) (<= 0 ~head~0.offset) (<= |#t~string31.offset| 0) (not (= ~pumpRunning~0 0)) (<= 0 |#t~string22.offset|) (= |#t~string28.offset| 0) (<= 0 |#t~string32.offset|) (<= ~waterLevel~0 2147483647) (<= 0 |#t~string18.offset|) (= |#t~string30.offset| 0) (<= ~waterLevel~0 0) (<= |#t~string56.offset| 0) (<= 0 |#t~string21.offset|) (<= |#NULL.offset| 0) (= ~head~0.offset 0) (<= ~pumpRunning~0 2147483647) (<= |#t~string44.offset| 0) (= |#t~string36.offset| 0) (<= |#t~string27.offset| 0) (<= 0 |#t~string56.offset|) (= |#t~string44.offset| 0) (<= |#t~string21.offset| 0) (<= |#t~string42.offset| 0) (= |#t~string54.offset| 0) (<= 0 |#t~string54.offset|) (<= 0 |#t~string23.offset|) (= |#t~string58.offset| 0) (<= |#t~string30.offset| 0) (<= |#t~string32.offset| 0) (= |#t~string19.offset| 0) (<= 0 |#t~string29.offset|) (<= |#t~string62.offset| 0) (<= 0 ~systemActive~0) (<= ~methaneLevelCritical~0 1) (<= 0 |#t~string66.offset|) (<= |#t~string28.offset| 0) (<= 0 |#t~string30.offset|) (<= 0 |#t~string31.offset|) (<= |#t~string23.offset| 0) (= |#t~string60.offset| 0) (= |#t~string22.offset| 0) (<= |#t~string54.offset| 0) (<= |#t~string29.offset| 0) (<= |#t~string19.offset| 0) (<= 0 |#t~string58.offset|) (<= |#t~string20.offset| 0) (<= 0 |#t~string68.offset|) (<= 0 |#t~string28.offset|)) [2019-10-14 02:52:51,311 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-14 02:52:51,311 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-14 02:52:51,313 INFO L168 Benchmark]: Toolchain (without parser) took 22871.89 ms. Allocated memory was 143.7 MB in the beginning and 662.2 MB in the end (delta: 518.5 MB). Free memory was 102.3 MB in the beginning and 533.9 MB in the end (delta: -431.6 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2019-10-14 02:52:51,315 INFO L168 Benchmark]: CDTParser took 1.34 ms. Allocated memory is still 143.7 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-14 02:52:51,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.35 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 170.7 MB in the end (delta: -68.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-10-14 02:52:51,318 INFO L168 Benchmark]: Boogie Preprocessor took 126.42 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-14 02:52:51,319 INFO L168 Benchmark]: RCFGBuilder took 1646.91 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 166.1 MB in the beginning and 149.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2019-10-14 02:52:51,320 INFO L168 Benchmark]: Sifa took 20484.38 ms. Allocated memory was 235.9 MB in the beginning and 662.2 MB in the end (delta: 426.2 MB). Free memory was 149.5 MB in the beginning and 533.9 MB in the end (delta: -384.4 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2019-10-14 02:52:51,324 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34 ms. Allocated memory is still 143.7 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 610.35 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 170.7 MB in the end (delta: -68.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.42 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1646.91 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 166.1 MB in the beginning and 149.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * Sifa took 20484.38 ms. Allocated memory was 235.9 MB in the beginning and 662.2 MB in the end (delta: 426.2 MB). Free memory was 149.5 MB in the beginning and 533.9 MB in the end (delta: -384.4 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 20438, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 242, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 162, TOOLS_POST_TIME[ms]: 11865, TOOLS_POST_CALL_APPLICATIONS: 67, TOOLS_POST_CALL_TIME[ms]: 169, TOOLS_POST_RETURN_APPLICATIONS: 60, TOOLS_POST_RETURN_TIME[ms]: 108, TOOLS_QUANTIFIERELIM_APPLICATIONS: 288, TOOLS_QUANTIFIERELIM_TIME[ms]: 12022, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 11771, FLUID_QUERY_TIME[ms]: 17, FLUID_QUERIES: 246, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 83, DOMAIN_JOIN_TIME[ms]: 7497, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 440, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME[ms]: 12, DOMAIN_ISBOTTOM_APPLICATIONS: 51, DOMAIN_ISBOTTOM_TIME[ms]: 171, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 4710, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4710, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 60, CALL_SUMMARIZER_CACHE_MISSES: 25, CALL_SUMMARIZER_OVERALL_TIME[ms]: 12621, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 12620, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 34, DAG_COMPRESSION_PROCESSED_NODES: 406, DAG_COMPRESSION_RETAINED_NODES: 223 - UnprovableResult [Line: 44]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 779#(and (<= |#t~string58.offset| 0) (<= |#t~string22.offset| 0) (<= 0 |#NULL.base|) (= |#t~string27.offset| 0) (<= 0 |#t~string20.offset|) (<= ~systemActive~0 1) (<= 0 |#t~string40.offset|) (<= ~head~0.offset 0) (= |#t~string62.offset| 0) (<= 0 |#t~string64.offset|) (= |#t~string32.offset| 0) (= 0 ~waterLevel~0) (<= 0 |#t~string60.offset|) (= |#NULL.base| 0) (= |#t~string38.offset| 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (<= 0 ~head~0.base) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string44.offset|) (<= |#t~string64.offset| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= |#t~string40.offset| 0) (<= |#t~string18.offset| 0) (<= 0 |#t~string36.offset|) (<= 0 ~waterLevel~0) (<= |#t~string36.offset| 0) (= |#t~string20.offset| 0) (= |#t~string56.offset| 0) (= |#t~string29.offset| 0) (<= |#t~string66.offset| 0) (= |#t~string42.offset| 0) (<= 0 |#NULL.offset|) (= |#t~string66.offset| 0) (<= |#t~string60.offset| 0) (= |#t~string64.offset| 0) (= ~head~0.base 0) (<= ~cleanupTimeShifts~0 4) (= ~cleanupTimeShifts~0 4) (= |#t~string68.offset| 0) (<= 0 |#t~string38.offset|) (<= |#NULL.base| 0) (= |#t~string18.offset| 0) (<= 4 ~cleanupTimeShifts~0) (= |#t~string31.offset| 0) (<= |#t~string38.offset| 0) (<= |#t~string68.offset| 0) (= |#t~string40.offset| 0) (= |#NULL.offset| 0) (= |#t~string23.offset| 0) (= |#t~string21.offset| 0) (<= 0 |#t~string62.offset|) (<= 0 |#t~string27.offset|) (<= ~head~0.base 0) (<= 0 |#t~string19.offset|) (<= 0 ~head~0.offset) (<= |#t~string31.offset| 0) (not (= ~pumpRunning~0 0)) (<= 0 |#t~string22.offset|) (= |#t~string28.offset| 0) (<= 0 |#t~string32.offset|) (<= ~waterLevel~0 2147483647) (<= 0 |#t~string18.offset|) (= |#t~string30.offset| 0) (<= ~waterLevel~0 0) (<= |#t~string56.offset| 0) (<= 0 |#t~string21.offset|) (<= |#NULL.offset| 0) (= ~head~0.offset 0) (<= ~pumpRunning~0 2147483647) (<= |#t~string44.offset| 0) (= |#t~string36.offset| 0) (<= |#t~string27.offset| 0) (<= 0 |#t~string56.offset|) (= |#t~string44.offset| 0) (<= |#t~string21.offset| 0) (<= |#t~string42.offset| 0) (= |#t~string54.offset| 0) (<= 0 |#t~string54.offset|) (<= 0 |#t~string23.offset|) (= |#t~string58.offset| 0) (<= |#t~string30.offset| 0) (<= |#t~string32.offset| 0) (= |#t~string19.offset| 0) (<= 0 |#t~string29.offset|) (<= |#t~string62.offset| 0) (<= 0 ~systemActive~0) (<= ~methaneLevelCritical~0 1) (<= 0 |#t~string66.offset|) (<= |#t~string28.offset| 0) (<= 0 |#t~string30.offset|) (<= 0 |#t~string31.offset|) (<= |#t~string23.offset| 0) (= |#t~string60.offset| 0) (= |#t~string22.offset| 0) (<= |#t~string54.offset| 0) (<= |#t~string29.offset| 0) (<= |#t~string19.offset| 0) (<= 0 |#t~string58.offset|) (<= |#t~string20.offset| 0) (<= 0 |#t~string68.offset|) (<= 0 |#t~string28.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...