/usr/bin/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 -i ../../../trunk/examples/svcomp/forester-heap/dll-token-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:47:45,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:47:45,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:47:45,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:47:45,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:47:45,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:47:45,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:47:45,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:47:45,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:47:45,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:47:45,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:47:45,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:47:45,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:47:45,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:47:45,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:47:45,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:47:45,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:47:45,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:47:45,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:47:45,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:47:45,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:47:45,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:47:45,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:47:45,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:47:45,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:47:45,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:47:45,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:47:45,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:47:45,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:47:45,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:47:45,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:47:45,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:47:45,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:47:45,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:47:45,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:47:45,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:47:45,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:47:45,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:47:45,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:47:45,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:47:45,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:47:45,968 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 [2020-08-22 16:47:46,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:47:46,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:47:46,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:47:46,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:47:46,015 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:47:46,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:47:46,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:47:46,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:47:46,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:47:46,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:47:46,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:47:46,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:47:46,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:47:46,018 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:47:46,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:47:46,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:47:46,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:47:46,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:47:46,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:47:46,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:47:46,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:47:46,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:47:46,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:47:46,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:47:46,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:47:46,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:47:46,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:47:46,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:47:46,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:47:46,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:47:46,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:47:46,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:47:46,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:47:46,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:47:46,329 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:47:46,330 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token-2.i [2020-08-22 16:47:46,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e446faa/c8f53e745f444fc79bedb70aeb23dc86/FLAGe471d796e [2020-08-22 16:47:46,944 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:47:46,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-2.i [2020-08-22 16:47:46,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e446faa/c8f53e745f444fc79bedb70aeb23dc86/FLAGe471d796e [2020-08-22 16:47:47,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e446faa/c8f53e745f444fc79bedb70aeb23dc86 [2020-08-22 16:47:47,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:47:47,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:47:47,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:47:47,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:47:47,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:47:47,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1ee102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47, skipping insertion in model container [2020-08-22 16:47:47,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:47:47,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:47:47,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:47:47,648 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:47:47,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:47:47,777 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:47:47,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47 WrapperNode [2020-08-22 16:47:47,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:47:47,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:47:47,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:47:47,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:47:47,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (1/1) ... [2020-08-22 16:47:47,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:47:47,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:47:47,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:47:47,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:47:47,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (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 [2020-08-22 16:47:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:47:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:47:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:47:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 16:47:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 16:47:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 16:47:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 16:47:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 16:47:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 16:47:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 16:47:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 16:47:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 16:47:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 16:47:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 16:47:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 16:47:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 16:47:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 16:47:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 16:47:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 16:47:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 16:47:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 16:47:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 16:47:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 16:47:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 16:47:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 16:47:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 16:47:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 16:47:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 16:47:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 16:47:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 16:47:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 16:47:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 16:47:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 16:47:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 16:47:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 16:47:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 16:47:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 16:47:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 16:47:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 16:47:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 16:47:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 16:47:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 16:47:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 16:47:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 16:47:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 16:47:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 16:47:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 16:47:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 16:47:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 16:47:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 16:47:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 16:47:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 16:47:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 16:47:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 16:47:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 16:47:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 16:47:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 16:47:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 16:47:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 16:47:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 16:47:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 16:47:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-22 16:47:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 16:47:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 16:47:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-22 16:47:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 16:47:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:47:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-22 16:47:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 16:47:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 16:47:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 16:47:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 16:47:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 16:47:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 16:47:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 16:47:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 16:47:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 16:47:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 16:47:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 16:47:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 16:47:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 16:47:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 16:47:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 16:47:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 16:47:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 16:47:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 16:47:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 16:47:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 16:47:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 16:47:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 16:47:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 16:47:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 16:47:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 16:47:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 16:47:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 16:47:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 16:47:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 16:47:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 16:47:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 16:47:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 16:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:47:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:47:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:47:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:47:48,500 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:47:48,501 INFO L295 CfgBuilder]: Removed 15 assume(true) statements. [2020-08-22 16:47:48,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:47:48 BoogieIcfgContainer [2020-08-22 16:47:48,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:47:48,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:47:48,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:47:48,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:47:48,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:47:47" (1/3) ... [2020-08-22 16:47:48,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99f3e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:47:48, skipping insertion in model container [2020-08-22 16:47:48,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:47:47" (2/3) ... [2020-08-22 16:47:48,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99f3e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:47:48, skipping insertion in model container [2020-08-22 16:47:48,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:47:48" (3/3) ... [2020-08-22 16:47:48,514 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2020-08-22 16:47:48,525 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:47:48,533 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-08-22 16:47:48,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-08-22 16:47:48,570 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:47:48,570 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:47:48,570 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:47:48,570 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:47:48,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:47:48,571 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:47:48,571 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:47:48,571 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:47:48,592 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-08-22 16:47:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-22 16:47:48,599 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:47:48,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:47:48,601 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:47:48,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:47:48,608 INFO L82 PathProgramCache]: Analyzing trace with hash 68430596, now seen corresponding path program 1 times [2020-08-22 16:47:48,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:47:48,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466119222] [2020-08-22 16:47:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:47:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:48,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:47:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:48,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:47:48,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466119222] [2020-08-22 16:47:48,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:47:48,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:47:48,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625551408] [2020-08-22 16:47:48,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:47:48,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:47:48,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:47:48,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:47:48,830 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 3 states. [2020-08-22 16:47:48,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:47:48,997 INFO L93 Difference]: Finished difference Result 92 states and 138 transitions. [2020-08-22 16:47:48,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:47:48,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-08-22 16:47:49,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:47:49,010 INFO L225 Difference]: With dead ends: 92 [2020-08-22 16:47:49,010 INFO L226 Difference]: Without dead ends: 43 [2020-08-22 16:47:49,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:47:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-22 16:47:49,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-22 16:47:49,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-22 16:47:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-08-22 16:47:49,050 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 10 [2020-08-22 16:47:49,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:47:49,050 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-08-22 16:47:49,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:47:49,051 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-08-22 16:47:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-22 16:47:49,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:47:49,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:47:49,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:47:49,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:47:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:47:49,052 INFO L82 PathProgramCache]: Analyzing trace with hash 67663975, now seen corresponding path program 1 times [2020-08-22 16:47:49,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:47:49,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051600651] [2020-08-22 16:47:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:47:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:49,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:47:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:47:49,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051600651] [2020-08-22 16:47:49,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:47:49,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 16:47:49,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20325678] [2020-08-22 16:47:49,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:47:49,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:47:49,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:47:49,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:47:49,187 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 5 states. [2020-08-22 16:47:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:47:49,321 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2020-08-22 16:47:49,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 16:47:49,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-08-22 16:47:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:47:49,323 INFO L225 Difference]: With dead ends: 43 [2020-08-22 16:47:49,323 INFO L226 Difference]: Without dead ends: 41 [2020-08-22 16:47:49,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:47:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-08-22 16:47:49,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-08-22 16:47:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-08-22 16:47:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-08-22 16:47:49,332 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 10 [2020-08-22 16:47:49,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:47:49,332 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-08-22 16:47:49,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:47:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-08-22 16:47:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-22 16:47:49,333 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:47:49,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:47:49,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:47:49,334 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:47:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:47:49,334 INFO L82 PathProgramCache]: Analyzing trace with hash 2097539711, now seen corresponding path program 1 times [2020-08-22 16:47:49,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:47:49,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254561705] [2020-08-22 16:47:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:47:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:49,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:47:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:47:49,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254561705] [2020-08-22 16:47:49,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:47:49,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 16:47:49,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387077886] [2020-08-22 16:47:49,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:47:49,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:47:49,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:47:49,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:47:49,471 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 5 states. [2020-08-22 16:47:49,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:47:49,619 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2020-08-22 16:47:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:47:49,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-08-22 16:47:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:47:49,621 INFO L225 Difference]: With dead ends: 67 [2020-08-22 16:47:49,622 INFO L226 Difference]: Without dead ends: 65 [2020-08-22 16:47:49,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:47:49,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-22 16:47:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 39. [2020-08-22 16:47:49,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-22 16:47:49,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-08-22 16:47:49,630 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2020-08-22 16:47:49,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:47:49,631 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-08-22 16:47:49,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:47:49,631 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-08-22 16:47:49,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-22 16:47:49,632 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:47:49,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:47:49,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:47:49,633 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:47:49,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:47:49,633 INFO L82 PathProgramCache]: Analyzing trace with hash -409997773, now seen corresponding path program 1 times [2020-08-22 16:47:49,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:47:49,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909548174] [2020-08-22 16:47:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:47:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:47:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:47:49,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909548174] [2020-08-22 16:47:49,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:47:49,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:47:49,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482854077] [2020-08-22 16:47:49,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:47:49,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:47:49,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:47:49,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:47:49,707 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2020-08-22 16:47:49,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:47:49,839 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-08-22 16:47:49,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:47:49,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-22 16:47:49,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:47:49,841 INFO L225 Difference]: With dead ends: 39 [2020-08-22 16:47:49,841 INFO L226 Difference]: Without dead ends: 37 [2020-08-22 16:47:49,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:47:49,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-08-22 16:47:49,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-08-22 16:47:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-22 16:47:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-08-22 16:47:49,847 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 16 [2020-08-22 16:47:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:47:49,848 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-08-22 16:47:49,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:47:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-08-22 16:47:49,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-22 16:47:49,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:47:49,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:47:49,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:47:49,850 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:47:49,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:47:49,850 INFO L82 PathProgramCache]: Analyzing trace with hash -409960037, now seen corresponding path program 1 times [2020-08-22 16:47:49,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:47:49,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152324582] [2020-08-22 16:47:49,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:47:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:50,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:47:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:47:50,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:47:50,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152324582] [2020-08-22 16:47:50,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:47:50,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:47:50,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315763442] [2020-08-22 16:47:50,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:47:50,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:47:50,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:47:50,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:47:50,016 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 6 states. [2020-08-22 16:47:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:47:50,223 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2020-08-22 16:47:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:47:50,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-22 16:47:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:47:50,224 INFO L225 Difference]: With dead ends: 72 [2020-08-22 16:47:50,224 INFO L226 Difference]: Without dead ends: 48 [2020-08-22 16:47:50,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:47:50,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-22 16:47:50,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-22 16:47:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-22 16:47:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-08-22 16:47:50,233 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 16 [2020-08-22 16:47:50,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:47:50,233 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-08-22 16:47:50,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:47:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-08-22 16:47:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 16:47:50,234 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:47:50,234 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] [2020-08-22 16:47:50,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 16:47:50,237 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:47:50,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:47:50,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1407314597, now seen corresponding path program 1 times [2020-08-22 16:47:50,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:47:50,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800113592] [2020-08-22 16:47:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:47:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:47:50,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:47:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:47:50,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:47:50,368 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:47:50,368 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:47:50,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 16:47:50,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:47:50 BoogieIcfgContainer [2020-08-22 16:47:50,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:47:50,424 INFO L168 Benchmark]: Toolchain (without parser) took 3264.58 ms. Allocated memory was 141.6 MB in the beginning and 236.5 MB in the end (delta: 94.9 MB). Free memory was 102.9 MB in the beginning and 86.6 MB in the end (delta: 16.2 MB). Peak memory consumption was 111.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:47:50,426 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 16:47:50,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.65 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 172.7 MB in the end (delta: -70.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:47:50,434 INFO L168 Benchmark]: Boogie Preprocessor took 65.83 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 169.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-08-22 16:47:50,435 INFO L168 Benchmark]: RCFGBuilder took 659.53 ms. Allocated memory is still 205.5 MB. Free memory was 169.9 MB in the beginning and 122.2 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:47:50,436 INFO L168 Benchmark]: TraceAbstraction took 1913.69 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 122.2 MB in the beginning and 86.6 MB in the end (delta: 35.6 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:47:50,450 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 620.65 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 172.7 MB in the end (delta: -70.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.83 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 169.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 659.53 ms. Allocated memory is still 205.5 MB. Free memory was 169.9 MB in the beginning and 122.2 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1913.69 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 122.2 MB in the beginning and 86.6 MB in the end (delta: 35.6 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1026]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L993] SLL* head = malloc(sizeof(SLL)); [L994] head->next = ((void*)0) [L995] head->prev = ((void*)0) [L996] head->data = 0 [L998] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1010] x->data = 1 [L1011] x->next = malloc(sizeof(SLL)) [L1012] EXPR x->next [L1012] x->next->prev = x [L1013] EXPR x->next [L1013] x->next->data = 2 [L1015] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1017] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1019] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1019] COND FALSE !(1 != x->data) [L1024] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1024] COND FALSE !(!(1 == x->data)) [L1025] EXPR x->next [L1025] x = x->next [L1026] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=2] [L1026] COND TRUE !(2 != x->data) [L1026] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 175 SDtfs, 91 SDslu, 234 SDs, 0 SdLazy, 350 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 incorrect! Received shutdown request...