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_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:13:21,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:13:21,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:13:21,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:13:21,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:13:21,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:13:21,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:13:21,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:13:21,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:13:21,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:13:21,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:13:21,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:13:21,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:13:21,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:13:21,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:13:21,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:13:21,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:13:21,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:13:21,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:13:21,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:13:21,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:13:21,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:13:21,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:13:21,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:13:21,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:13:21,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:13:21,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:13:21,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:13:21,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:13:21,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:13:21,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:13:21,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:13:21,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:13:21,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:13:21,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:13:21,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:13:21,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:13:21,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:13:21,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:13:21,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:13:21,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:13:21,658 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 [2019-09-21 09:13:21,672 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:13:21,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:13:21,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:13:21,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:13:21,674 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:13:21,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:13:21,675 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:13:21,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:13:21,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:13:21,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:13:21,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:13:21,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:13:21,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:13:21,676 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:13:21,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:13:21,676 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:13:21,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:13:21,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:13:21,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:13:21,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:13:21,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:13:21,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:13:21,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:13:21,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:13:21,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:13:21,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:13:21,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:13:21,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:13:21,679 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_QUICK [2019-09-21 09:13:21,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:13:21,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:13:21,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:13:21,727 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:13:21,728 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:13:21,729 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2019-09-21 09:13:21,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e9404d3/85397f56de1f45da856b73a6d8c73b38/FLAG92585250f [2019-09-21 09:13:22,246 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:13:22,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2019-09-21 09:13:22,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e9404d3/85397f56de1f45da856b73a6d8c73b38/FLAG92585250f [2019-09-21 09:13:22,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e9404d3/85397f56de1f45da856b73a6d8c73b38 [2019-09-21 09:13:22,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:13:22,629 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:13:22,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:13:22,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:13:22,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:13:22,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:13:22" (1/1) ... [2019-09-21 09:13:22,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6da0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:22, skipping insertion in model container [2019-09-21 09:13:22,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:13:22" (1/1) ... [2019-09-21 09:13:22,645 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:13:22,705 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:13:23,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:13:23,186 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:13:23,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:13:23,294 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:13:23,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23 WrapperNode [2019-09-21 09:13:23,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:13:23,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:13:23,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:13:23,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:13:23,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (1/1) ... [2019-09-21 09:13:23,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (1/1) ... [2019-09-21 09:13:23,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (1/1) ... [2019-09-21 09:13:23,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (1/1) ... [2019-09-21 09:13:23,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (1/1) ... [2019-09-21 09:13:23,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (1/1) ... [2019-09-21 09:13:23,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (1/1) ... [2019-09-21 09:13:23,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:13:23,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:13:23,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:13:23,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:13:23,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:13:23" (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 [2019-09-21 09:13:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:13:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:13:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-21 09:13:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-21 09:13:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-21 09:13:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-21 09:13:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-21 09:13:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-21 09:13:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-21 09:13:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-21 09:13:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-21 09:13:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-21 09:13:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-21 09:13:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-21 09:13:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-21 09:13:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-21 09:13:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-21 09:13:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-21 09:13:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-21 09:13:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-21 09:13:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-21 09:13:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-21 09:13:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-21 09:13:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-21 09:13:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-21 09:13:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-21 09:13:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-21 09:13:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-21 09:13:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-21 09:13:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-21 09:13:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-21 09:13:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-21 09:13:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-21 09:13:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-21 09:13:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-21 09:13:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:13:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:13:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 09:13:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-21 09:13:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-21 09:13:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-21 09:13:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-21 09:13:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-21 09:13:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-21 09:13:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-21 09:13:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-21 09:13:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-21 09:13:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-21 09:13:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-21 09:13:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-21 09:13:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-21 09:13:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-21 09:13:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-21 09:13:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-21 09:13:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-21 09:13:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-21 09:13:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-21 09:13:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-21 09:13:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-21 09:13:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-21 09:13:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-21 09:13:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-21 09:13:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-21 09:13:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-21 09:13:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-21 09:13:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-21 09:13:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-21 09:13:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-21 09:13:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-21 09:13:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-21 09:13:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-21 09:13:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-21 09:13:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-21 09:13:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-21 09:13:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-21 09:13:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-21 09:13:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-21 09:13:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-21 09:13:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-21 09:13:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-21 09:13:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-21 09:13:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-21 09:13:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:13:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:13:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-21 09:13:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:13:24,880 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:13:24,880 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-21 09:13:24,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:13:24 BoogieIcfgContainer [2019-09-21 09:13:24,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:13:24,883 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:13:24,883 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:13:24,883 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:13:24,884 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:13:24" (1/1) ... [2019-09-21 09:13:24,885 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_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:13:24,907 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 09:13:24,908 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:13:24,916 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:13:24,925 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:13:24,926 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:13:34,647 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-09-21 09:13:36,570 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-21 09:13:36,705 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-09-21 09:13:36,752 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 114 for LOIs [2019-09-21 09:13:36,807 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 114 for LOIs [2019-09-21 09:13:36,811 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 114 for LOIs [2019-09-21 09:13:41,636 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-09-21 09:13:41,638 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 104 for LOIs [2019-09-21 09:13:41,708 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification1_spec__1 with input of size 105 for LOIs [2019-09-21 09:13:41,715 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 105 for LOIs [2019-09-21 09:13:41,752 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 09:13:41,752 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 09:13:41,755 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 713#(or (and (<= ~head~0.base 0) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string63.offset|) (<= 0 |#t~string20.offset|) (<= 0 |#t~string52.offset|) (<= 0 |#t~string40.offset|) (<= ~head~0.offset 0) (<= |#t~string52.offset| 0) (<= |#t~string16.offset| 0) (<= 0 |#t~string18.offset|) (<= |#t~string51.offset| 0) (<= 0 |#t~string59.offset|) (<= |#t~string39.offset| 0) (<= 0 |#t~string51.offset|) (<= 0 |#t~string49.offset|) (<= |#t~string57.offset| 0) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= 0 |#t~string6.offset|) (<= 0 |#t~string8.offset|) (<= |#NULL.offset| 0) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string39.offset|) (<= 0 |#t~string44.offset|) (<= 0 |#t~string10.offset|) (<= |#t~string6.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string53.offset| 0) (<= |#t~string40.offset| 0) (<= 0 |#t~string41.offset|) (<= |#t~string18.offset| 0) (<= 0 |#t~string61.offset|) (<= |#t~string65.offset| 0) (<= 0 |#t~string43.offset|) (<= 0 |#t~string65.offset|) (<= |#t~string14.offset| 0) (<= 0 |#t~string53.offset|) (<= |#t~string41.offset| 0) (<= 0 |#t~string48.offset|) (<= |#t~string61.offset| 0) (<= |#t~string42.offset| 0) (<= |#t~string59.offset| 0) (<= 0 |#NULL.offset|) (<= ~cleanupTimeShifts~0 4) (<= 0 ~pumpRunning~0) (<= |#t~string43.offset| 0) (<= 0 ~systemActive~0) (<= ~systemActive~0 0) (<= 0 |#t~string16.offset|) (<= |#t~string50.offset| 0) (<= 0 |#t~string50.offset|) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (<= 0 |#t~string14.offset|) (<= 0 |#t~string12.offset|) (<= |#t~string48.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string10.offset| 0) (<= |#t~string12.offset| 0) (<= |#t~string49.offset| 0) (<= 0 |#t~string57.offset|) (<= |#t~string20.offset| 0) (<= |#t~string8.offset| 0)) (and (<= ~head~0.base 0) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string63.offset|) (<= 0 |#t~string20.offset|) (<= ~systemActive~0 1) (<= 0 |#t~string52.offset|) (<= 0 |#t~string40.offset|) (<= ~head~0.offset 0) (<= |#t~string52.offset| 0) (<= |#t~string16.offset| 0) (<= 0 |#t~string18.offset|) (<= |#t~string51.offset| 0) (<= 0 |#t~string59.offset|) (<= |#t~string39.offset| 0) (<= 0 |#t~string51.offset|) (<= 0 |#t~string49.offset|) (<= |#t~string57.offset| 0) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= 0 |#t~string6.offset|) (<= 0 |#t~string8.offset|) (<= |#NULL.offset| 0) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string39.offset|) (<= 0 |#t~string44.offset|) (<= 0 |#t~string10.offset|) (<= |#t~string6.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string53.offset| 0) (<= |#t~string40.offset| 0) (<= 0 |#t~string41.offset|) (<= |#t~string18.offset| 0) (<= 0 |#t~string61.offset|) (<= |#t~string65.offset| 0) (<= 0 |#t~string43.offset|) (<= 0 |#t~string65.offset|) (<= |#t~string14.offset| 0) (<= 0 |#t~string53.offset|) (<= |#t~string41.offset| 0) (<= 0 |#t~string48.offset|) (<= |#t~string61.offset| 0) (<= |#t~string42.offset| 0) (<= |#t~string59.offset| 0) (<= 0 |#NULL.offset|) (<= ~cleanupTimeShifts~0 4) (<= 0 ~pumpRunning~0) (<= |#t~string43.offset| 0) (<= 0 |#t~string16.offset|) (<= |#t~string50.offset| 0) (<= 0 |#t~string50.offset|) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (<= 0 |#t~string14.offset|) (<= 0 |#t~string12.offset|) (<= |#t~string48.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string10.offset| 0) (<= |#t~string12.offset| 0) (<= |#t~string49.offset| 0) (<= 0 |#t~string57.offset|) (<= |#t~string20.offset| 0) (<= |#t~string8.offset| 0))) [2019-09-21 09:13:41,773 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 09:13:41,773 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 09:13:41,775 INFO L168 Benchmark]: Toolchain (without parser) took 19146.35 ms. Allocated memory was 131.6 MB in the beginning and 539.0 MB in the end (delta: 407.4 MB). Free memory was 86.0 MB in the beginning and 212.3 MB in the end (delta: -126.3 MB). Peak memory consumption was 281.1 MB. Max. memory is 7.1 GB. [2019-09-21 09:13:41,776 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-21 09:13:41,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.18 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 85.8 MB in the beginning and 164.4 MB in the end (delta: -78.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-21 09:13:41,778 INFO L168 Benchmark]: Boogie Preprocessor took 82.33 ms. Allocated memory is still 198.7 MB. Free memory was 164.4 MB in the beginning and 160.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-21 09:13:41,779 INFO L168 Benchmark]: RCFGBuilder took 1504.23 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 160.5 MB in the beginning and 151.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 94.0 MB. Max. memory is 7.1 GB. [2019-09-21 09:13:41,780 INFO L168 Benchmark]: Sifa took 16890.84 ms. Allocated memory was 220.2 MB in the beginning and 539.0 MB in the end (delta: 318.8 MB). Free memory was 149.8 MB in the beginning and 212.3 MB in the end (delta: -62.5 MB). Peak memory consumption was 256.2 MB. Max. memory is 7.1 GB. [2019-09-21 09:13:41,784 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.18 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 85.8 MB in the beginning and 164.4 MB in the end (delta: -78.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.33 ms. Allocated memory is still 198.7 MB. Free memory was 164.4 MB in the beginning and 160.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1504.23 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 160.5 MB in the beginning and 151.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 94.0 MB. Max. memory is 7.1 GB. * Sifa took 16890.84 ms. Allocated memory was 220.2 MB in the beginning and 539.0 MB in the end (delta: 318.8 MB). Free memory was 149.8 MB in the beginning and 212.3 MB in the end (delta: -62.5 MB). Peak memory consumption was 256.2 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]: 16848, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 446, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 315, TOOLS_POST_TIME[ms]: 11938, TOOLS_POST_CALL_APPLICATIONS: 108, TOOLS_POST_CALL_TIME[ms]: 248, TOOLS_POST_RETURN_APPLICATIONS: 101, TOOLS_POST_RETURN_TIME[ms]: 151, TOOLS_QUANTIFIERELIM_APPLICATIONS: 523, TOOLS_QUANTIFIERELIM_TIME[ms]: 12158, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 11713, FLUID_QUERY_TIME[ms]: 21, FLUID_QUERIES: 460, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 185, DOMAIN_JOIN_TIME[ms]: 3941, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 9, DOMAIN_ISSUBSETEQ_APPLICATIONS: 14, DOMAIN_ISSUBSETEQ_TIME[ms]: 47, DOMAIN_ISBOTTOM_APPLICATIONS: 105, DOMAIN_ISBOTTOM_TIME[ms]: 324, LOOP_SUMMARIZER_APPLICATIONS: 12, LOOP_SUMMARIZER_CACHE_MISSES: 12, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 3015, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3015, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 14, CALL_SUMMARIZER_APPLICATIONS: 101, CALL_SUMMARIZER_CACHE_MISSES: 19, CALL_SUMMARIZER_OVERALL_TIME[ms]: 11830, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 11828, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 47, DAG_COMPRESSION_PROCESSED_NODES: 1188, DAG_COMPRESSION_RETAINED_NODES: 291 - 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 713#(or (and (<= ~head~0.base 0) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string63.offset|) (<= 0 |#t~string20.offset|) (<= 0 |#t~string52.offset|) (<= 0 |#t~string40.offset|) (<= ~head~0.offset 0) (<= |#t~string52.offset| 0) (<= |#t~string16.offset| 0) (<= 0 |#t~string18.offset|) (<= |#t~string51.offset| 0) (<= 0 |#t~string59.offset|) (<= |#t~string39.offset| 0) (<= 0 |#t~string51.offset|) (<= 0 |#t~string49.offset|) (<= |#t~string57.offset| 0) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= 0 |#t~string6.offset|) (<= 0 |#t~string8.offset|) (<= |#NULL.offset| 0) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string39.offset|) (<= 0 |#t~string44.offset|) (<= 0 |#t~string10.offset|) (<= |#t~string6.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string53.offset| 0) (<= |#t~string40.offset| 0) (<= 0 |#t~string41.offset|) (<= |#t~string18.offset| 0) (<= 0 |#t~string61.offset|) (<= |#t~string65.offset| 0) (<= 0 |#t~string43.offset|) (<= 0 |#t~string65.offset|) (<= |#t~string14.offset| 0) (<= 0 |#t~string53.offset|) (<= |#t~string41.offset| 0) (<= 0 |#t~string48.offset|) (<= |#t~string61.offset| 0) (<= |#t~string42.offset| 0) (<= |#t~string59.offset| 0) (<= 0 |#NULL.offset|) (<= ~cleanupTimeShifts~0 4) (<= 0 ~pumpRunning~0) (<= |#t~string43.offset| 0) (<= 0 ~systemActive~0) (<= ~systemActive~0 0) (<= 0 |#t~string16.offset|) (<= |#t~string50.offset| 0) (<= 0 |#t~string50.offset|) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (<= 0 |#t~string14.offset|) (<= 0 |#t~string12.offset|) (<= |#t~string48.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string10.offset| 0) (<= |#t~string12.offset| 0) (<= |#t~string49.offset| 0) (<= 0 |#t~string57.offset|) (<= |#t~string20.offset| 0) (<= |#t~string8.offset| 0)) (and (<= ~head~0.base 0) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string63.offset|) (<= 0 |#t~string20.offset|) (<= ~systemActive~0 1) (<= 0 |#t~string52.offset|) (<= 0 |#t~string40.offset|) (<= ~head~0.offset 0) (<= |#t~string52.offset| 0) (<= |#t~string16.offset| 0) (<= 0 |#t~string18.offset|) (<= |#t~string51.offset| 0) (<= 0 |#t~string59.offset|) (<= |#t~string39.offset| 0) (<= 0 |#t~string51.offset|) (<= 0 |#t~string49.offset|) (<= |#t~string57.offset| 0) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= 0 |#t~string6.offset|) (<= 0 |#t~string8.offset|) (<= |#NULL.offset| 0) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string39.offset|) (<= 0 |#t~string44.offset|) (<= 0 |#t~string10.offset|) (<= |#t~string6.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string53.offset| 0) (<= |#t~string40.offset| 0) (<= 0 |#t~string41.offset|) (<= |#t~string18.offset| 0) (<= 0 |#t~string61.offset|) (<= |#t~string65.offset| 0) (<= 0 |#t~string43.offset|) (<= 0 |#t~string65.offset|) (<= |#t~string14.offset| 0) (<= 0 |#t~string53.offset|) (<= |#t~string41.offset| 0) (<= 0 |#t~string48.offset|) (<= |#t~string61.offset| 0) (<= |#t~string42.offset| 0) (<= |#t~string59.offset| 0) (<= 0 |#NULL.offset|) (<= ~cleanupTimeShifts~0 4) (<= 0 ~pumpRunning~0) (<= |#t~string43.offset| 0) (<= 0 |#t~string16.offset|) (<= |#t~string50.offset| 0) (<= 0 |#t~string50.offset|) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (<= 0 |#t~string14.offset|) (<= 0 |#t~string12.offset|) (<= |#t~string48.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string10.offset| 0) (<= |#t~string12.offset| 0) (<= |#t~string49.offset| 0) (<= 0 |#t~string57.offset|) (<= |#t~string20.offset| 0) (<= |#t~string8.offset| 0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...