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 ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid AlwaysFluid --sifa.intern.fluid AlwaysFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/list-simple/dll2n_remove_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 22:27:26,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 22:27:26,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 22:27:26,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 22:27:26,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 22:27:26,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 22:27:26,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 22:27:26,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 22:27:26,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 22:27:26,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 22:27:26,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 22:27:26,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 22:27:26,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 22:27:26,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 22:27:26,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 22:27:26,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 22:27:26,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 22:27:26,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 22:27:26,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 22:27:26,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 22:27:26,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 22:27:26,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 22:27:26,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 22:27:26,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 22:27:26,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 22:27:26,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 22:27:26,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 22:27:26,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 22:27:26,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 22:27:26,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 22:27:26,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 22:27:26,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 22:27:26,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 22:27:26,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 22:27:26,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 22:27:26,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 22:27:26,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 22:27:26,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 22:27:26,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 22:27:26,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 22:27:26,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 22:27:26,804 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 [2019-09-20 22:27:26,824 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 22:27:26,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 22:27:26,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 22:27:26,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 22:27:26,826 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 22:27:26,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 22:27:26,827 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 22:27:26,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 22:27:26,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 22:27:26,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 22:27:26,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 22:27:26,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 22:27:26,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 22:27:26,828 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 22:27:26,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 22:27:26,829 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 22:27:26,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 22:27:26,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 22:27:26,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 22:27:26,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 22:27:26,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 22:27:26,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 22:27:26,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 22:27:26,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 22:27:26,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 22:27:26,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 22:27:26,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 22:27:26,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 22:27:26,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain 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 -> AlwaysFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> AlwaysFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 22:27:26,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 22:27:26,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 22:27:26,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 22:27:26,916 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 22:27:26,916 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 22:27:26,917 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_remove_all_reverse.i [2019-09-20 22:27:26,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9737d345f/29671481d4ee45cb96a49cdc510d1a51/FLAG725f10088 [2019-09-20 22:27:27,472 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 22:27:27,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_remove_all_reverse.i [2019-09-20 22:27:27,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9737d345f/29671481d4ee45cb96a49cdc510d1a51/FLAG725f10088 [2019-09-20 22:27:27,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9737d345f/29671481d4ee45cb96a49cdc510d1a51 [2019-09-20 22:27:27,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 22:27:27,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 22:27:27,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 22:27:27,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 22:27:27,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 22:27:27,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:27:27" (1/1) ... [2019-09-20 22:27:27,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1a5e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:27, skipping insertion in model container [2019-09-20 22:27:27,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:27:27" (1/1) ... [2019-09-20 22:27:27,776 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 22:27:27,824 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 22:27:28,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 22:27:28,278 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 22:27:28,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 22:27:28,428 INFO L192 MainTranslator]: Completed translation [2019-09-20 22:27:28,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28 WrapperNode [2019-09-20 22:27:28,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 22:27:28,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 22:27:28,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 22:27:28,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 22:27:28,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (1/1) ... [2019-09-20 22:27:28,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (1/1) ... [2019-09-20 22:27:28,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (1/1) ... [2019-09-20 22:27:28,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (1/1) ... [2019-09-20 22:27:28,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (1/1) ... [2019-09-20 22:27:28,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (1/1) ... [2019-09-20 22:27:28,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (1/1) ... [2019-09-20 22:27:28,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 22:27:28,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 22:27:28,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 22:27:28,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 22:27:28,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:27:28" (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 [2019-09-20 22:27:28,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 22:27:28,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 22:27:28,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 22:27:28,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 22:27:28,549 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-20 22:27:28,549 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-20 22:27:28,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-09-20 22:27:28,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_remove_last [2019-09-20 22:27:28,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 22:27:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 22:27:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 22:27:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 22:27:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 22:27:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 22:27:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 22:27:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 22:27:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 22:27:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 22:27:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 22:27:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 22:27:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 22:27:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 22:27:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 22:27:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 22:27:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 22:27:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 22:27:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 22:27:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 22:27:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 22:27:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 22:27:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 22:27:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 22:27:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 22:27:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 22:27:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 22:27:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 22:27:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 22:27:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 22:27:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 22:27:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 22:27:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 22:27:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 22:27:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 22:27:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 22:27:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 22:27:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 22:27:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 22:27:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 22:27:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 22:27:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 22:27:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 22:27:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 22:27:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 22:27:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 22:27:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 22:27:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 22:27:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 22:27:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 22:27:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 22:27:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 22:27:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 22:27:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 22:27:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 22:27:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 22:27:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 22:27:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 22:27:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 22:27:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 22:27:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 22:27:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 22:27:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 22:27:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 22:27:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 22:27:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 22:27:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 22:27:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 22:27:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 22:27:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 22:27:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 22:27:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 22:27:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 22:27:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 22:27:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 22:27:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 22:27:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 22:27:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 22:27:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 22:27:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 22:27:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 22:27:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 22:27:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 22:27:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 22:27:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 22:27:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 22:27:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 22:27:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 22:27:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 22:27:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 22:27:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 22:27:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 22:27:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 22:27:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 22:27:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 22:27:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 22:27:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 22:27:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 22:27:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 22:27:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 22:27:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 22:27:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 22:27:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 22:27:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 22:27:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 22:27:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 22:27:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 22:27:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-20 22:27:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-20 22:27:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 22:27:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 22:27:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 22:27:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-09-20 22:27:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure dll_remove_last [2019-09-20 22:27:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 22:27:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 22:27:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 22:27:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 22:27:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 22:27:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 22:27:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 22:27:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 22:27:28,943 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-20 22:27:29,317 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 22:27:29,318 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-20 22:27:29,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:27:29 BoogieIcfgContainer [2019-09-20 22:27:29,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 22:27:29,320 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 22:27:29,320 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 22:27:29,321 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 22:27:29,322 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:27:29" (1/1) ... [2019-09-20 22:27:29,323 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=AlwaysFluid ♦ 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=AlwaysFluid [2019-09-20 22:27:29,346 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 22:27:29,346 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 22:27:29,355 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 22:27:29,364 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 22:27:29,366 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 22:27:29,503 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 16 for LOIs [2019-09-20 22:27:30,396 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-20 22:27:31,143 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-20 22:27:31,485 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 22:27:31,921 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 22:27:32,498 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-20 22:27:33,188 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-20 22:27:33,663 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-20 22:27:34,018 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-20 22:27:34,088 WARN L98 DagInterpreter]: A function never reaches its return [2019-09-20 22:27:34,569 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-20 22:27:35,074 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 22:27:35,633 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 22:27:36,055 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 22:27:36,532 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2019-09-20 22:27:37,127 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-20 22:27:37,583 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-20 22:27:38,270 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-20 22:27:38,696 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 22:27:39,230 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 22:27:39,843 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 22:27:40,317 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-20 22:27:40,885 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-20 22:27:41,317 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-20 22:27:41,722 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2019-09-20 22:27:42,364 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-20 22:27:42,877 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 22:27:43,362 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 22:27:43,738 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 22:27:44,167 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-20 22:27:44,807 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-20 22:27:45,276 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-20 22:27:46,045 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 22:27:46,526 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-20 22:27:46,839 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 22:27:47,170 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 22:27:47,616 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-20 22:27:48,236 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-20 22:27:48,696 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-20 22:27:49,074 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-20 22:27:49,312 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 22:27:49,313 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 22:27:49,314 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 186#true [2019-09-20 22:27:49,324 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 22:27:49,325 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 22:27:49,326 INFO L168 Benchmark]: Toolchain (without parser) took 21564.90 ms. Allocated memory was 134.7 MB in the beginning and 331.9 MB in the end (delta: 197.1 MB). Free memory was 89.6 MB in the beginning and 212.8 MB in the end (delta: -123.3 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2019-09-20 22:27:49,326 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 134.7 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 22:27:49,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.72 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 89.1 MB in the beginning and 163.6 MB in the end (delta: -74.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-20 22:27:49,328 INFO L168 Benchmark]: Boogie Preprocessor took 64.27 ms. Allocated memory is still 202.4 MB. Free memory was 163.6 MB in the beginning and 160.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-20 22:27:49,328 INFO L168 Benchmark]: RCFGBuilder took 824.82 ms. Allocated memory is still 202.4 MB. Free memory was 160.0 MB in the beginning and 105.3 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. [2019-09-20 22:27:49,329 INFO L168 Benchmark]: Sifa took 20004.56 ms. Allocated memory was 202.4 MB in the beginning and 331.9 MB in the end (delta: 129.5 MB). Free memory was 105.3 MB in the beginning and 212.8 MB in the end (delta: -107.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-09-20 22:27:49,330 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 134.7 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 667.72 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 89.1 MB in the beginning and 163.6 MB in the end (delta: -74.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.27 ms. Allocated memory is still 202.4 MB. Free memory was 163.6 MB in the beginning and 160.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 824.82 ms. Allocated memory is still 202.4 MB. Free memory was 160.0 MB in the beginning and 105.3 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. * Sifa took 20004.56 ms. Allocated memory was 202.4 MB in the beginning and 331.9 MB in the end (delta: 129.5 MB). Free memory was 105.3 MB in the beginning and 212.8 MB in the end (delta: -107.5 MB). Peak memory consumption was 22.0 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]: 19968, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 48, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 36, TOOLS_POST_TIME[ms]: 18569, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME[ms]: 21, TOOLS_POST_RETURN_APPLICATIONS: 5, TOOLS_POST_RETURN_TIME[ms]: 5, TOOLS_QUANTIFIERELIM_APPLICATIONS: 47, TOOLS_QUANTIFIERELIM_TIME[ms]: 18573, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 3965, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 54, FLUID_YES_ANSWERS: 54, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME[ms]: 1216, DOMAIN_ALPHA_APPLICATIONS: 54, DOMAIN_ALPHA_TIME[ms]: 69, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 3, DOMAIN_ISBOTTOM_APPLICATIONS: 4, DOMAIN_ISBOTTOM_TIME[ms]: 6, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 16119, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 16119, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 5, CALL_SUMMARIZER_CACHE_MISSES: 4, CALL_SUMMARIZER_OVERALL_TIME[ms]: 19774, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 19773, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 19, DAG_COMPRESSION_PROCESSED_NODES: 96, DAG_COMPRESSION_RETAINED_NODES: 58 - UnprovableResult [Line: 619]: 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 186#true. Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...