java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:59:47,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:59:47,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:59:47,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:59:47,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:59:47,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:59:47,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:59:47,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:59:47,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:59:47,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:59:47,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:59:47,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:59:47,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:59:47,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:59:47,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:59:47,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:59:47,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:59:47,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:59:47,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:59:47,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:59:47,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:59:47,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:59:47,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:59:47,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:59:47,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:59:47,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:59:47,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:59:47,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:59:47,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:59:47,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:59:47,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:59:47,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:59:47,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:59:47,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:59:47,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:59:47,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:59:47,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:59:47,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:59:47,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:59:47,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:59:47,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:59:47,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:59:47,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:59:47,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:59:47,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:59:47,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:59:47,955 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:59:47,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:59:47,956 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:59:47,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:59:47,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:59:47,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:59:47,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:59:47,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:59:47,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:59:47,958 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:59:47,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:59:47,958 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:59:47,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:59:47,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:59:47,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:59:47,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:59:47,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:59:47,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:59:47,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:59:47,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:59:47,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:59:47,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:59:47,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:59:47,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:59:47,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:59:48,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:59:48,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:59:48,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:59:48,275 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:59:48,275 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:59:48,276 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2019-10-15 01:59:48,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b3359247/02f8d5daf2e240119a77a76830b005d1/FLAG802f0595b [2019-10-15 01:59:48,925 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:59:48,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i [2019-10-15 01:59:48,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b3359247/02f8d5daf2e240119a77a76830b005d1/FLAG802f0595b [2019-10-15 01:59:49,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b3359247/02f8d5daf2e240119a77a76830b005d1 [2019-10-15 01:59:49,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:59:49,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:59:49,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:59:49,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:59:49,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:59:49,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149b388c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49, skipping insertion in model container [2019-10-15 01:59:49,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,232 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:59:49,280 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:59:49,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:59:49,752 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:59:49,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:59:49,868 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:59:49,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49 WrapperNode [2019-10-15 01:59:49,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:59:49,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:59:49,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:59:49,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:59:49,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... [2019-10-15 01:59:49,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:59:49,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:59:49,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:59:49,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:59:49,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:59:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:59:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:59:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:59:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:59:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2019-10-15 01:59:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2019-10-15 01:59:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:59:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:59:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:59:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:59:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:59:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:59:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:59:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:59:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:59:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:59:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:59:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:59:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:59:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:59:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:59:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:59:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:59:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:59:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:59:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:59:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:59:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:59:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:59:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:59:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:59:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:59:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:59:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:59:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:59:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:59:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:59:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:59:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:59:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:59:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:59:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:59:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:59:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:59:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:59:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:59:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:59:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:59:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:59:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:59:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:59:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:59:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:59:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:59:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:59:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:59:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:59:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:59:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:59:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:59:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:59:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:59:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:59:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:59:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:59:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:59:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:59:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:59:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:59:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:59:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:59:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:59:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:59:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:59:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:59:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:59:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:59:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:59:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:59:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:59:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:59:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:59:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:59:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:59:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:59:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:59:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:59:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:59:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:59:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:59:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:59:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:59:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:59:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:59:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:59:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:59:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:59:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:59:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:59:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:59:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:59:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:59:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:59:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:59:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:59:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:59:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:59:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:59:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:59:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:59:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:59:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:59:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:59:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:59:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2019-10-15 01:59:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:59:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:59:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:59:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:59:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2019-10-15 01:59:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:59:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:59:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:59:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:59:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:59:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:59:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:59:50,704 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:59:50,704 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:59:50,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:50 BoogieIcfgContainer [2019-10-15 01:59:50,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:59:50,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:59:50,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:59:50,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:59:50,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:59:49" (1/3) ... [2019-10-15 01:59:50,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbe3553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:50, skipping insertion in model container [2019-10-15 01:59:50,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:49" (2/3) ... [2019-10-15 01:59:50,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbe3553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:50, skipping insertion in model container [2019-10-15 01:59:50,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:50" (3/3) ... [2019-10-15 01:59:50,717 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2019-10-15 01:59:50,728 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:59:50,737 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-15 01:59:50,749 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-15 01:59:50,770 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:59:50,771 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:59:50,771 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:59:50,771 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:59:50,772 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:59:50,772 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:59:50,772 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:59:50,772 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:59:50,788 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-15 01:59:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 01:59:50,794 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:50,795 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:50,797 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:50,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1668985138, now seen corresponding path program 1 times [2019-10-15 01:59:50,812 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:50,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543357073] [2019-10-15 01:59:50,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:50,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:50,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:50,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543357073] [2019-10-15 01:59:50,962 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:50,963 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:59:50,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741366805] [2019-10-15 01:59:50,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:59:50,969 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:50,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:59:50,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:59:50,987 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-10-15 01:59:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:51,011 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-10-15 01:59:51,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:59:51,013 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-15 01:59:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:51,026 INFO L225 Difference]: With dead ends: 47 [2019-10-15 01:59:51,027 INFO L226 Difference]: Without dead ends: 27 [2019-10-15 01:59:51,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:59:51,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-15 01:59:51,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-15 01:59:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-15 01:59:51,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2019-10-15 01:59:51,076 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 14 [2019-10-15 01:59:51,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:51,076 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2019-10-15 01:59:51,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:59:51,076 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2019-10-15 01:59:51,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:59:51,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:51,078 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:51,079 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:51,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:51,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1596562153, now seen corresponding path program 1 times [2019-10-15 01:59:51,080 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:51,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510533651] [2019-10-15 01:59:51,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:51,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:51,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:51,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510533651] [2019-10-15 01:59:51,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:51,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:59:51,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428635033] [2019-10-15 01:59:51,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:59:51,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:51,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:59:51,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:59:51,193 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 3 states. [2019-10-15 01:59:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:51,206 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-10-15 01:59:51,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:59:51,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-15 01:59:51,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:51,208 INFO L225 Difference]: With dead ends: 33 [2019-10-15 01:59:51,208 INFO L226 Difference]: Without dead ends: 23 [2019-10-15 01:59:51,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:59:51,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-15 01:59:51,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-15 01:59:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-15 01:59:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-10-15 01:59:51,215 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2019-10-15 01:59:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:51,215 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-10-15 01:59:51,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:59:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-10-15 01:59:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 01:59:51,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:51,217 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:51,217 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:51,217 INFO L82 PathProgramCache]: Analyzing trace with hash 2048670444, now seen corresponding path program 1 times [2019-10-15 01:59:51,218 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:51,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809359295] [2019-10-15 01:59:51,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:51,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:51,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:51,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:51,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809359295] [2019-10-15 01:59:51,276 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:51,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:59:51,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399283332] [2019-10-15 01:59:51,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:59:51,277 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:51,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:59:51,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:59:51,278 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 3 states. [2019-10-15 01:59:51,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:51,284 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2019-10-15 01:59:51,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:59:51,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-15 01:59:51,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:51,286 INFO L225 Difference]: With dead ends: 24 [2019-10-15 01:59:51,286 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:59:51,288 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:59:51,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:59:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:59:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:59:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:59:51,293 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-15 01:59:51,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:51,294 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:59:51,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:59:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:59:51,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:59:51,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:59:51,349 INFO L446 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2019-10-15 01:59:51,349 INFO L446 ceAbstractionStarter]: At program point L576-1(lines 571 577) the Hoare annotation is: true [2019-10-15 01:59:51,350 INFO L446 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: true [2019-10-15 01:59:51,350 INFO L443 ceAbstractionStarter]: For program point L573(lines 573 576) no Hoare annotation was computed. [2019-10-15 01:59:51,350 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2019-10-15 01:59:51,350 INFO L443 ceAbstractionStarter]: For program point L571-3(lines 571 577) no Hoare annotation was computed. [2019-10-15 01:59:51,350 INFO L443 ceAbstractionStarter]: For program point create_listEXIT(lines 569 579) no Hoare annotation was computed. [2019-10-15 01:59:51,351 INFO L446 ceAbstractionStarter]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: true [2019-10-15 01:59:51,351 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:59:51,352 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:59:51,352 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-15 01:59:51,352 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-15 01:59:51,352 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-15 01:59:51,352 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-15 01:59:51,352 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:59:51,352 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:59:51,352 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:59:51,352 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:59:51,353 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 580 602) no Hoare annotation was computed. [2019-10-15 01:59:51,353 INFO L443 ceAbstractionStarter]: For program point L597-1(lines 580 602) no Hoare annotation was computed. [2019-10-15 01:59:51,353 INFO L443 ceAbstractionStarter]: For program point L593(lines 593 594) no Hoare annotation was computed. [2019-10-15 01:59:51,353 INFO L443 ceAbstractionStarter]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2019-10-15 01:59:51,353 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2019-10-15 01:59:51,353 INFO L439 ceAbstractionStarter]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= main_~low~0.offset 0) (= 0 main_~low~0.base) (= main_~high~0.base 0) (= 0 main_~high~0.offset)) [2019-10-15 01:59:51,354 INFO L443 ceAbstractionStarter]: For program point L581(line 581) no Hoare annotation was computed. [2019-10-15 01:59:51,354 INFO L443 ceAbstractionStarter]: For program point L598(lines 598 599) no Hoare annotation was computed. [2019-10-15 01:59:51,354 INFO L443 ceAbstractionStarter]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2019-10-15 01:59:51,354 INFO L443 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2019-10-15 01:59:51,354 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2019-10-15 01:59:51,354 INFO L443 ceAbstractionStarter]: For program point L599(line 599) no Hoare annotation was computed. [2019-10-15 01:59:51,354 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 580 602) the Hoare annotation is: true [2019-10-15 01:59:51,355 INFO L443 ceAbstractionStarter]: For program point L592-1(lines 580 602) no Hoare annotation was computed. [2019-10-15 01:59:51,355 INFO L443 ceAbstractionStarter]: For program point append_to_listEXIT(lines 562 568) no Hoare annotation was computed. [2019-10-15 01:59:51,355 INFO L446 ceAbstractionStarter]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: true [2019-10-15 01:59:51,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:59:51 BoogieIcfgContainer [2019-10-15 01:59:51,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:59:51,373 INFO L168 Benchmark]: Toolchain (without parser) took 2154.86 ms. Allocated memory was 138.4 MB in the beginning and 236.5 MB in the end (delta: 98.0 MB). Free memory was 101.9 MB in the beginning and 184.3 MB in the end (delta: -82.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:51,374 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:59:51,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.23 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 101.5 MB in the beginning and 169.8 MB in the end (delta: -68.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:51,375 INFO L168 Benchmark]: Boogie Preprocessor took 73.78 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 166.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:51,376 INFO L168 Benchmark]: RCFGBuilder took 762.56 ms. Allocated memory is still 203.9 MB. Free memory was 166.5 MB in the beginning and 113.2 MB in the end (delta: 53.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:51,377 INFO L168 Benchmark]: TraceAbstraction took 662.79 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 113.2 MB in the beginning and 184.3 MB in the end (delta: -71.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:59:51,381 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 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.23 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 101.5 MB in the beginning and 169.8 MB in the end (delta: -68.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.78 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 166.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 762.56 ms. Allocated memory is still 203.9 MB. Free memory was 166.5 MB in the beginning and 113.2 MB in the end (delta: 53.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 662.79 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 113.2 MB in the beginning and 184.3 MB in the end (delta: -71.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((low == 0 && 0 == low) && high == 0) && 0 == high - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 34 locations, 2 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 8 SDslu, 36 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 22 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...