/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:31:35,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:31:35,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:31:35,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:31:35,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:31:35,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:31:35,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:31:35,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:31:35,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:31:35,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:31:35,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:31:35,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:31:35,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:31:35,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:31:35,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:31:35,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:31:35,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:31:35,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:31:35,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:31:35,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:31:35,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:31:35,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:31:35,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:31:35,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:31:35,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 22:31:35,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 22:31:35,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 22:31:35,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 22:31:35,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 22:31:35,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 22:31:35,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 22:31:35,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 22:31:35,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 22:31:35,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 22:31:35,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 22:31:35,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 22:31:35,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 22:31:35,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 22:31:35,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:31:35,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:31:35,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:31:35,774 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 [2020-11-06 22:31:35,807 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:31:35,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:31:35,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:31:35,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:31:35,809 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:31:35,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:31:35,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:31:35,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:31:35,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:31:35,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:31:35,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:31:35,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:31:35,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:31:35,812 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:31:35,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:31:35,813 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:31:35,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:31:35,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:31:35,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:31:35,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:31:35,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:31:35,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:31:35,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:31:35,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:31:35,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:31:35,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:31:35,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:31:35,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:31:35,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:31:35,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:31:36,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:31:36,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:31:36,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:31:36,234 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:31:36,235 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:31:36,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-11-06 22:31:36,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908cdd2ef/7a7a3e9e5218429483dda1455a9b92e8/FLAG9905ef83e [2020-11-06 22:31:37,013 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:31:37,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-11-06 22:31:37,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908cdd2ef/7a7a3e9e5218429483dda1455a9b92e8/FLAG9905ef83e [2020-11-06 22:31:37,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908cdd2ef/7a7a3e9e5218429483dda1455a9b92e8 [2020-11-06 22:31:37,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:31:37,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:31:37,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:37,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:31:37,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:31:37,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f74255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37, skipping insertion in model container [2020-11-06 22:31:37,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:31:37,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:31:37,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:37,672 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:31:37,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:37,785 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:31:37,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37 WrapperNode [2020-11-06 22:31:37,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:37,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:31:37,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:31:37,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:31:37,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (1/1) ... [2020-11-06 22:31:37,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:31:37,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:31:37,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:31:37,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:31:37,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (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 [2020-11-06 22:31:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:31:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:31:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:31:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-06 22:31:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-06 22:31:37,948 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2020-11-06 22:31:37,948 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2020-11-06 22:31:37,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:31:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:31:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:31:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:31:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-06 22:31:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-06 22:31:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:31:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:31:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-06 22:31:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-06 22:31:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-06 22:31:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-06 22:31:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-06 22:31:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-06 22:31:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-06 22:31:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-06 22:31:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-06 22:31:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-06 22:31:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-06 22:31:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-06 22:31:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-06 22:31:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-06 22:31:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-06 22:31:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-06 22:31:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-06 22:31:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-06 22:31:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-06 22:31:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-06 22:31:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-06 22:31:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-06 22:31:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-06 22:31:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-06 22:31:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-06 22:31:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-06 22:31:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-06 22:31:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-06 22:31:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-06 22:31:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-06 22:31:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-06 22:31:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-06 22:31:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-06 22:31:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-06 22:31:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-06 22:31:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-06 22:31:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-06 22:31:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-06 22:31:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-06 22:31:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-06 22:31:37,956 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-06 22:31:37,956 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-06 22:31:37,956 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-06 22:31:37,956 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-06 22:31:37,956 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-06 22:31:37,956 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-06 22:31:37,957 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-06 22:31:37,957 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-06 22:31:37,957 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-06 22:31:37,957 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-06 22:31:37,957 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-06 22:31:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-06 22:31:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 22:31:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-06 22:31:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-06 22:31:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 22:31:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-06 22:31:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-06 22:31:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-06 22:31:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-06 22:31:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-06 22:31:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-06 22:31:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-06 22:31:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-06 22:31:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:31:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-06 22:31:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-06 22:31:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-06 22:31:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-06 22:31:37,961 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-06 22:31:37,961 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-06 22:31:37,961 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-06 22:31:37,961 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-06 22:31:37,961 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-06 22:31:37,962 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-06 22:31:37,962 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-06 22:31:37,962 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-06 22:31:37,962 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-06 22:31:37,962 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-06 22:31:37,962 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-06 22:31:37,963 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-06 22:31:37,963 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-06 22:31:37,963 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-06 22:31:37,963 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-06 22:31:37,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-06 22:31:37,963 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-06 22:31:37,964 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-06 22:31:37,964 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-06 22:31:37,964 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-06 22:31:37,964 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-06 22:31:37,964 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-06 22:31:37,964 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-06 22:31:37,964 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-06 22:31:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-06 22:31:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-06 22:31:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-06 22:31:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-06 22:31:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-06 22:31:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-06 22:31:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-06 22:31:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-06 22:31:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-06 22:31:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-06 22:31:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-06 22:31:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2020-11-06 22:31:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 22:31:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 22:31:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 22:31:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:31:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2020-11-06 22:31:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-06 22:31:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:31:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:31:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:31:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:31:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:31:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:31:38,490 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:31:38,490 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-06 22:31:38,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:38 BoogieIcfgContainer [2020-11-06 22:31:38,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:31:38,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:31:38,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:31:38,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:31:38,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:31:37" (1/3) ... [2020-11-06 22:31:38,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2537ed98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:38, skipping insertion in model container [2020-11-06 22:31:38,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:37" (2/3) ... [2020-11-06 22:31:38,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2537ed98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:38, skipping insertion in model container [2020-11-06 22:31:38,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:38" (3/3) ... [2020-11-06 22:31:38,500 INFO L111 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2020-11-06 22:31:38,516 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:31:38,520 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:31:38,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:31:38,562 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:31:38,562 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:31:38,562 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:31:38,562 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:31:38,562 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:31:38,563 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:31:38,563 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:31:38,563 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:31:38,579 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-06 22:31:38,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-06 22:31:38,586 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:38,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:38,587 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:38,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:38,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1050377751, now seen corresponding path program 1 times [2020-11-06 22:31:38,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:38,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455758022] [2020-11-06 22:31:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:38,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:38,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:31:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:38,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455758022] [2020-11-06 22:31:38,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:38,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 22:31:38,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028415037] [2020-11-06 22:31:38,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:31:38,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:38,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:31:38,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:31:38,964 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2020-11-06 22:31:39,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:39,148 INFO L93 Difference]: Finished difference Result 61 states and 86 transitions. [2020-11-06 22:31:39,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:31:39,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-06 22:31:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:39,162 INFO L225 Difference]: With dead ends: 61 [2020-11-06 22:31:39,162 INFO L226 Difference]: Without dead ends: 33 [2020-11-06 22:31:39,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:31:39,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-06 22:31:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-06 22:31:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-06 22:31:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-11-06 22:31:39,214 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 18 [2020-11-06 22:31:39,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:39,214 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-11-06 22:31:39,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:31:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-11-06 22:31:39,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-06 22:31:39,217 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:39,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:39,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:31:39,218 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:39,219 INFO L82 PathProgramCache]: Analyzing trace with hash -458401008, now seen corresponding path program 1 times [2020-11-06 22:31:39,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:39,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711460043] [2020-11-06 22:31:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:39,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:39,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:31:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:39,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711460043] [2020-11-06 22:31:39,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:39,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:31:39,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186947344] [2020-11-06 22:31:39,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:31:39,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:39,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:31:39,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:31:39,412 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 5 states. [2020-11-06 22:31:39,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:39,600 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2020-11-06 22:31:39,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-06 22:31:39,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-06 22:31:39,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:39,602 INFO L225 Difference]: With dead ends: 41 [2020-11-06 22:31:39,602 INFO L226 Difference]: Without dead ends: 30 [2020-11-06 22:31:39,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:31:39,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-06 22:31:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-06 22:31:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-06 22:31:39,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2020-11-06 22:31:39,622 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2020-11-06 22:31:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:39,623 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2020-11-06 22:31:39,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:31:39,624 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2020-11-06 22:31:39,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-06 22:31:39,625 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:39,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:39,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:31:39,626 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:39,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:39,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1369192421, now seen corresponding path program 1 times [2020-11-06 22:31:39,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:39,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454606981] [2020-11-06 22:31:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:39,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:39,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:31:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:39,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:39,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454606981] [2020-11-06 22:31:39,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:39,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:31:39,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547086990] [2020-11-06 22:31:39,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:31:39,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:39,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:31:39,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:31:39,758 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 5 states. [2020-11-06 22:31:39,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:39,881 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-11-06 22:31:39,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-06 22:31:39,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-06 22:31:39,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:39,882 INFO L225 Difference]: With dead ends: 31 [2020-11-06 22:31:39,882 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:31:39,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:31:39,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:31:39,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:31:39,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:31:39,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:31:39,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-06 22:31:39,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:39,884 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:31:39,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:31:39,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:31:39,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:31:39,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:31:39,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:31:40,048 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 13) no Hoare annotation was computed. [2020-11-06 22:31:40,048 INFO L266 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-11-06 22:31:40,048 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 13) the Hoare annotation is: true [2020-11-06 22:31:40,048 INFO L266 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-11-06 22:31:40,049 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-11-06 22:31:40,049 INFO L266 CegarLoopResult]: For program point create_listEXIT(lines 580 590) no Hoare annotation was computed. [2020-11-06 22:31:40,049 INFO L262 CegarLoopResult]: At program point create_listENTRY(lines 580 590) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:40,049 INFO L269 CegarLoopResult]: At program point L587(line 587) the Hoare annotation is: true [2020-11-06 22:31:40,049 INFO L269 CegarLoopResult]: At program point L587-1(lines 582 588) the Hoare annotation is: true [2020-11-06 22:31:40,049 INFO L269 CegarLoopResult]: At program point L585(line 585) the Hoare annotation is: true [2020-11-06 22:31:40,049 INFO L266 CegarLoopResult]: For program point L584(lines 584 587) no Hoare annotation was computed. [2020-11-06 22:31:40,049 INFO L266 CegarLoopResult]: For program point create_listFINAL(lines 580 590) no Hoare annotation was computed. [2020-11-06 22:31:40,050 INFO L266 CegarLoopResult]: For program point L582-1(lines 582 588) no Hoare annotation was computed. [2020-11-06 22:31:40,050 INFO L266 CegarLoopResult]: For program point L582-3(lines 582 588) no Hoare annotation was computed. [2020-11-06 22:31:40,050 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:31:40,050 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:40,050 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:31:40,050 INFO L266 CegarLoopResult]: For program point __bswap_32ENTRY(lines 75 79) no Hoare annotation was computed. [2020-11-06 22:31:40,050 INFO L266 CegarLoopResult]: For program point __bswap_32FINAL(lines 75 79) no Hoare annotation was computed. [2020-11-06 22:31:40,050 INFO L266 CegarLoopResult]: For program point __bswap_32EXIT(lines 75 79) no Hoare annotation was computed. [2020-11-06 22:31:40,051 INFO L266 CegarLoopResult]: For program point __bswap_64ENTRY(lines 80 84) no Hoare annotation was computed. [2020-11-06 22:31:40,051 INFO L266 CegarLoopResult]: For program point __bswap_64FINAL(lines 80 84) no Hoare annotation was computed. [2020-11-06 22:31:40,051 INFO L266 CegarLoopResult]: For program point __bswap_64EXIT(lines 80 84) no Hoare annotation was computed. [2020-11-06 22:31:40,051 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:31:40,051 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-06 22:31:40,051 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:31:40,051 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:31:40,051 INFO L266 CegarLoopResult]: For program point L609(lines 609 610) no Hoare annotation was computed. [2020-11-06 22:31:40,051 INFO L266 CegarLoopResult]: For program point L609-1(lines 609 610) no Hoare annotation was computed. [2020-11-06 22:31:40,052 INFO L262 CegarLoopResult]: At program point L605(line 605) the Hoare annotation is: false [2020-11-06 22:31:40,052 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 591 613) no Hoare annotation was computed. [2020-11-06 22:31:40,052 INFO L266 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-06 22:31:40,052 INFO L266 CegarLoopResult]: For program point L597-2(line 597) no Hoare annotation was computed. [2020-11-06 22:31:40,052 INFO L262 CegarLoopResult]: At program point L610(line 610) the Hoare annotation is: false [2020-11-06 22:31:40,052 INFO L266 CegarLoopResult]: For program point L603-1(lines 591 613) no Hoare annotation was computed. [2020-11-06 22:31:40,052 INFO L266 CegarLoopResult]: For program point L608-1(lines 591 613) no Hoare annotation was computed. [2020-11-06 22:31:40,052 INFO L266 CegarLoopResult]: For program point L608-2(lines 591 613) no Hoare annotation was computed. [2020-11-06 22:31:40,053 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 591 613) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:40,053 INFO L266 CegarLoopResult]: For program point L604(lines 604 605) no Hoare annotation was computed. [2020-11-06 22:31:40,053 INFO L266 CegarLoopResult]: For program point L604-1(lines 604 605) no Hoare annotation was computed. [2020-11-06 22:31:40,053 INFO L262 CegarLoopResult]: At program point L596-2(lines 596 602) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-11-06 22:31:40,053 INFO L266 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-11-06 22:31:40,053 INFO L266 CegarLoopResult]: For program point append_to_listEXIT(lines 573 579) no Hoare annotation was computed. [2020-11-06 22:31:40,054 INFO L262 CegarLoopResult]: At program point append_to_listENTRY(lines 573 579) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:40,054 INFO L266 CegarLoopResult]: For program point append_to_listFINAL(lines 573 579) no Hoare annotation was computed. [2020-11-06 22:31:40,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:31:40 BoogieIcfgContainer [2020-11-06 22:31:40,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:31:40,079 INFO L168 Benchmark]: Toolchain (without parser) took 2798.12 ms. Allocated memory was 151.0 MB in the beginning and 197.1 MB in the end (delta: 46.1 MB). Free memory was 125.1 MB in the beginning and 96.0 MB in the end (delta: 29.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:40,080 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.3 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:31:40,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.02 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 102.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:40,082 INFO L168 Benchmark]: Boogie Preprocessor took 72.78 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 99.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:40,083 INFO L168 Benchmark]: RCFGBuilder took 631.72 ms. Allocated memory is still 151.0 MB. Free memory was 99.6 MB in the beginning and 91.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.8 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:40,084 INFO L168 Benchmark]: TraceAbstraction took 1576.91 ms. Allocated memory was 151.0 MB in the beginning and 197.1 MB in the end (delta: 46.1 MB). Free memory was 91.0 MB in the beginning and 96.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:40,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.3 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 502.02 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 102.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 72.78 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 99.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 631.72 ms. Allocated memory is still 151.0 MB. Free memory was 99.6 MB in the beginning and 91.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1576.91 ms. Allocated memory was 151.0 MB in the beginning and 197.1 MB in the end (delta: 46.1 MB). Free memory was 91.0 MB in the beginning and 96.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: ((0 == high && low == 0) && high == 0) && low == 0 - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 21 SDslu, 103 SDs, 0 SdLazy, 124 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 13 LocationsWithAnnotation, 18 PreInvPairs, 19 NumberOfFragments, 94 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 63 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 3638 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...