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 IntervalDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-17 10:29:02,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-17 10:29:02,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-17 10:29:02,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-17 10:29:02,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-17 10:29:02,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-17 10:29:02,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-17 10:29:02,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-17 10:29:02,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-17 10:29:02,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-17 10:29:02,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-17 10:29:02,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-17 10:29:02,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-17 10:29:02,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-17 10:29:02,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-17 10:29:02,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-17 10:29:02,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-17 10:29:02,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-17 10:29:02,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-17 10:29:02,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-17 10:29:02,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-17 10:29:02,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-17 10:29:02,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-17 10:29:02,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-17 10:29:02,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-17 10:29:02,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-17 10:29:02,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-17 10:29:02,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-17 10:29:02,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-17 10:29:02,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-17 10:29:02,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-17 10:29:02,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-17 10:29:02,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-17 10:29:02,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-17 10:29:02,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-17 10:29:02,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-17 10:29:02,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-17 10:29:02,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-17 10:29:02,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-17 10:29:02,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-17 10:29:02,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-17 10:29:02,171 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 [2019-09-17 10:29:02,193 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-17 10:29:02,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-17 10:29:02,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-17 10:29:02,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-17 10:29:02,195 INFO L138 SettingsManager]: * Use SBE=true [2019-09-17 10:29:02,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-17 10:29:02,195 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-17 10:29:02,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-17 10:29:02,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-17 10:29:02,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-17 10:29:02,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-17 10:29:02,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-17 10:29:02,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-17 10:29:02,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-17 10:29:02,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-17 10:29:02,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-17 10:29:02,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-17 10:29:02,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-17 10:29:02,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-17 10:29:02,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-17 10:29:02,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-17 10:29:02,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-17 10:29:02,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-17 10:29:02,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-17 10:29:02,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-17 10:29:02,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-17 10:29:02,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-17 10:29:02,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-17 10:29:02,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-17 10:29:02,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-17 10:29:02,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-17 10:29:02,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-17 10:29:02,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-17 10:29:02,256 INFO L275 PluginConnector]: CDTParser initialized [2019-09-17 10:29:02,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2019-09-17 10:29:02,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38d197db/a7e7d6cd579e4492b9590ef7fcb81cf6/FLAGd923fdae9 [2019-09-17 10:29:02,825 INFO L306 CDTParser]: Found 1 translation units. [2019-09-17 10:29:02,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2019-09-17 10:29:02,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38d197db/a7e7d6cd579e4492b9590ef7fcb81cf6/FLAGd923fdae9 [2019-09-17 10:29:03,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38d197db/a7e7d6cd579e4492b9590ef7fcb81cf6 [2019-09-17 10:29:03,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-17 10:29:03,141 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-17 10:29:03,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-17 10:29:03,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-17 10:29:03,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-17 10:29:03,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56745d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03, skipping insertion in model container [2019-09-17 10:29:03,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,155 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-17 10:29:03,199 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-17 10:29:03,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 10:29:03,639 INFO L188 MainTranslator]: Completed pre-run [2019-09-17 10:29:03,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 10:29:03,748 INFO L192 MainTranslator]: Completed translation [2019-09-17 10:29:03,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03 WrapperNode [2019-09-17 10:29:03,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-17 10:29:03,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-17 10:29:03,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-17 10:29:03,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-17 10:29:03,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (1/1) ... [2019-09-17 10:29:03,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-17 10:29:03,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-17 10:29:03,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-17 10:29:03,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-17 10:29:03,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:29:03" (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 [2019-09-17 10:29:03,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-17 10:29:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-17 10:29:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-17 10:29:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-17 10:29:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-17 10:29:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-17 10:29:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-17 10:29:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-17 10:29:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-17 10:29:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-17 10:29:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-17 10:29:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-17 10:29:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-17 10:29:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-17 10:29:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-17 10:29:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-17 10:29:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-17 10:29:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-17 10:29:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-17 10:29:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-17 10:29:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-17 10:29:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-17 10:29:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-17 10:29:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-17 10:29:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-17 10:29:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-17 10:29:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-17 10:29:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-17 10:29:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-17 10:29:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-17 10:29:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-17 10:29:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-17 10:29:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-17 10:29:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-17 10:29:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-17 10:29:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-17 10:29:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-17 10:29:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-17 10:29:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-17 10:29:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-17 10:29:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-17 10:29:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-17 10:29:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-17 10:29:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-17 10:29:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-17 10:29:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-17 10:29:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-17 10:29:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-17 10:29:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-17 10:29:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-17 10:29:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-17 10:29:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-17 10:29:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-17 10:29:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-17 10:29:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-17 10:29:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-17 10:29:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-17 10:29:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-17 10:29:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-17 10:29:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-17 10:29:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-17 10:29:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-17 10:29:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-17 10:29:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-17 10:29:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-17 10:29:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-17 10:29:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-17 10:29:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-17 10:29:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-17 10:29:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-17 10:29:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-17 10:29:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-17 10:29:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-17 10:29:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-17 10:29:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-17 10:29:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-17 10:29:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-17 10:29:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-17 10:29:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-17 10:29:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-17 10:29:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-17 10:29:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-17 10:29:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-17 10:29:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-17 10:29:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-17 10:29:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-17 10:29:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-17 10:29:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-17 10:29:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-17 10:29:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-17 10:29:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-17 10:29:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-17 10:29:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-17 10:29:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-17 10:29:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-17 10:29:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-17 10:29:05,412 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-17 10:29:05,413 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-17 10:29:05,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 10:29:05 BoogieIcfgContainer [2019-09-17 10:29:05,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-17 10:29:05,415 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-17 10:29:05,415 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-17 10:29:05,415 INFO L275 PluginConnector]: Sifa initialized [2019-09-17 10:29:05,417 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 10:29:05" (1/1) ... [2019-09-17 10:29:05,417 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-17 10:29:05,445 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-17 10:29:05,445 INFO L169 IcfgInterpreter]: Building call graph [2019-09-17 10:29:05,453 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-17 10:29:05,461 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-17 10:29:05,462 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-17 10:29:27,756 WARN L191 SmtUtils]: Spent 13.41 s on a formula simplification that was a NOOP. DAG size: 464 [2019-09-17 10:29:29,466 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-17 10:29:33,314 WARN L191 SmtUtils]: Spent 3.84 s on a formula simplification. DAG size of input: 472 DAG size of output: 422 [2019-09-17 10:29:33,577 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-09-17 10:29:33,589 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 114 for LOIs [2019-09-17 10:29:33,660 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 114 for LOIs [2019-09-17 10:29:33,664 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 114 for LOIs [2019-09-17 10:29:34,618 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2019-09-17 10:29:35,496 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2019-09-17 10:29:35,870 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-17 10:29:36,900 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-09-17 10:29:37,228 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-17 10:29:37,581 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-17 10:29:38,058 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-17 10:29:38,920 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2019-09-17 10:29:39,728 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2019-09-17 10:29:40,038 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-17 10:29:40,972 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-17 10:29:41,275 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-17 10:29:41,612 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-17 10:29:41,942 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-17 10:29:42,787 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2019-09-17 10:29:43,617 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2019-09-17 10:29:43,916 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-17 10:29:44,881 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-17 10:29:45,175 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-17 10:29:45,485 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-17 10:29:45,488 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-09-17 10:29:45,490 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 104 for LOIs [2019-09-17 10:29:46,103 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2019-09-17 10:29:46,728 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2019-09-17 10:29:47,332 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2019-09-17 10:29:47,333 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 98 for LOIs [2019-09-17 10:29:47,339 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 98 for LOIs [2019-09-17 10:29:47,546 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-17 10:29:47,547 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-17 10:29:47,547 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-17 10:29:47,548 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 314#(and (<= |#t~string58.offset| 0) (<= |#t~string33.offset| 0) (<= 0 |#t~string62.offset|) (<= 0 |#t~string35.offset|) (<= ~head~0.base 0) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= ~systemActive~0 1) (<= ~head~0.offset 0) (<= 0 |#t~string32.offset|) (<= 0 |#t~string64.offset|) (<= |#t~string34.offset| 0) (<= 0 |#t~string11.offset|) (<= 0 |#t~string46.offset|) (<= 0 |#t~string60.offset|) (<= |#t~string56.offset| 0) (<= 0 ~head~0.base) (<= |#NULL.offset| 0) (<= 0 |#t~string45.offset|) (<= 0 |#t~string42.offset|) (<= |#t~string7.offset| 0) (<= |#t~string13.offset| 0) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string44.offset|) (<= |#t~string9.offset| 0) (<= |#t~string64.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string35.offset| 0) (<= 0 |#t~string41.offset|) (<= |#t~string11.offset| 0) (<= |#t~string45.offset| 0) (<= 0 |#t~string36.offset|) (<= 0 |#t~string43.offset|) (<= |#t~string36.offset| 0) (<= 0 |#t~string56.offset|) (<= |#t~string41.offset| 0) (<= |#t~string66.offset| 0) (<= 0 |#t~string7.offset|) (<= 0 |#t~string9.offset|) (<= |#t~string42.offset| 0) (<= 0 |#t~string33.offset|) (<= 0 |#t~string54.offset|) (<= 0 |#NULL.offset|) (<= |#t~string32.offset| 0) (<= |#t~string60.offset| 0) (<= |#t~string37.offset| 0) (<= ~cleanupTimeShifts~0 4) (<= 0 |#t~string13.offset|) (<= 0 |#t~string5.offset|) (<= |#t~string62.offset| 0) (<= |#t~string43.offset| 0) (<= |#t~string5.offset| 0) (<= 0 |#t~string37.offset|) (<= |#NULL.base| 0) (<= 0 |#t~string66.offset|) (<= |#t~string46.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string54.offset| 0) (<= 0 |#t~string34.offset|) (<= |#t~string68.offset| 0) (<= 0 |#t~string58.offset|) (<= 0 |#t~string68.offset|)) [2019-09-17 10:29:47,560 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-17 10:29:47,560 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-17 10:29:47,561 INFO L168 Benchmark]: Toolchain (without parser) took 44420.53 ms. Allocated memory was 133.2 MB in the beginning and 556.3 MB in the end (delta: 423.1 MB). Free memory was 87.7 MB in the beginning and 245.1 MB in the end (delta: -157.4 MB). Peak memory consumption was 265.7 MB. Max. memory is 7.1 GB. [2019-09-17 10:29:47,562 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-17 10:29:47,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.65 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.4 MB in the beginning and 164.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-09-17 10:29:47,564 INFO L168 Benchmark]: Boogie Preprocessor took 111.56 ms. Allocated memory is still 199.8 MB. Free memory was 164.5 MB in the beginning and 160.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-17 10:29:47,565 INFO L168 Benchmark]: RCFGBuilder took 1552.95 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 160.1 MB in the beginning and 144.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2019-09-17 10:29:47,566 INFO L168 Benchmark]: Sifa took 42145.27 ms. Allocated memory was 224.9 MB in the beginning and 556.3 MB in the end (delta: 331.4 MB). Free memory was 144.8 MB in the beginning and 245.1 MB in the end (delta: -100.3 MB). Peak memory consumption was 231.0 MB. Max. memory is 7.1 GB. [2019-09-17 10:29:47,569 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 607.65 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.4 MB in the beginning and 164.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.56 ms. Allocated memory is still 199.8 MB. Free memory was 164.5 MB in the beginning and 160.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1552.95 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 160.1 MB in the beginning and 144.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * Sifa took 42145.27 ms. Allocated memory was 224.9 MB in the beginning and 556.3 MB in the end (delta: 331.4 MB). Free memory was 144.8 MB in the beginning and 245.1 MB in the end (delta: -100.3 MB). Peak memory consumption was 231.0 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]: 42104, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 201, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 133, TOOLS_POST_TIME[ms]: 27835, TOOLS_POST_CALL_APPLICATIONS: 60, TOOLS_POST_CALL_TIME[ms]: 116, TOOLS_POST_RETURN_APPLICATIONS: 53, TOOLS_POST_RETURN_TIME[ms]: 48, TOOLS_QUANTIFIERELIM_APPLICATIONS: 245, TOOLS_QUANTIFIERELIM_TIME[ms]: 27919, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 27783, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 203, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 65, DOMAIN_JOIN_TIME[ms]: 13847, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 3, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 10, DOMAIN_ISBOTTOM_APPLICATIONS: 39, DOMAIN_ISBOTTOM_TIME[ms]: 120, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 8260, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 8259, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 53, CALL_SUMMARIZER_CACHE_MISSES: 25, CALL_SUMMARIZER_OVERALL_TIME[ms]: 28333, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 28332, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 8, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 31, DAG_COMPRESSION_PROCESSED_NODES: 348, DAG_COMPRESSION_RETAINED_NODES: 204 - UnprovableResult [Line: 111]: 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 314#(and (<= |#t~string58.offset| 0) (<= |#t~string33.offset| 0) (<= 0 |#t~string62.offset|) (<= 0 |#t~string35.offset|) (<= ~head~0.base 0) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= ~systemActive~0 1) (<= ~head~0.offset 0) (<= 0 |#t~string32.offset|) (<= 0 |#t~string64.offset|) (<= |#t~string34.offset| 0) (<= 0 |#t~string11.offset|) (<= 0 |#t~string46.offset|) (<= 0 |#t~string60.offset|) (<= |#t~string56.offset| 0) (<= 0 ~head~0.base) (<= |#NULL.offset| 0) (<= 0 |#t~string45.offset|) (<= 0 |#t~string42.offset|) (<= |#t~string7.offset| 0) (<= |#t~string13.offset| 0) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string44.offset|) (<= |#t~string9.offset| 0) (<= |#t~string64.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string35.offset| 0) (<= 0 |#t~string41.offset|) (<= |#t~string11.offset| 0) (<= |#t~string45.offset| 0) (<= 0 |#t~string36.offset|) (<= 0 |#t~string43.offset|) (<= |#t~string36.offset| 0) (<= 0 |#t~string56.offset|) (<= |#t~string41.offset| 0) (<= |#t~string66.offset| 0) (<= 0 |#t~string7.offset|) (<= 0 |#t~string9.offset|) (<= |#t~string42.offset| 0) (<= 0 |#t~string33.offset|) (<= 0 |#t~string54.offset|) (<= 0 |#NULL.offset|) (<= |#t~string32.offset| 0) (<= |#t~string60.offset| 0) (<= |#t~string37.offset| 0) (<= ~cleanupTimeShifts~0 4) (<= 0 |#t~string13.offset|) (<= 0 |#t~string5.offset|) (<= |#t~string62.offset| 0) (<= |#t~string43.offset| 0) (<= |#t~string5.offset| 0) (<= 0 |#t~string37.offset|) (<= |#NULL.base| 0) (<= 0 |#t~string66.offset|) (<= |#t~string46.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string54.offset| 0) (<= 0 |#t~string34.offset|) (<= |#t~string68.offset| 0) (<= 0 |#t~string58.offset|) (<= 0 |#t~string68.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...