/usr/bin/java -ea -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-sorted-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:31:53,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:31:53,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:31:53,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:31:53,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:31:53,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:31:53,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:31:53,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:31:53,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:31:53,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:31:53,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:31:53,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:31:53,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:31:53,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:31:53,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:31:53,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:31:53,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:31:53,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:31:53,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:31:53,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:31:53,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:31:53,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:31:53,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:31:53,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:31:53,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 22:31:53,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 22:31:53,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 22:31:53,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 22:31:53,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 22:31:53,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 22:31:53,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 22:31:53,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 22:31:53,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 22:31:53,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 22:31:53,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 22:31:53,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 22:31:53,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 22:31:53,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 22:31:53,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:31:53,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:31:53,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:31:53,928 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 [2020-07-17 22:31:53,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:31:53,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:31:53,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:31:53,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:31:53,945 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:31:53,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:31:53,945 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:31:53,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:31:53,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:31:53,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:31:53,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:31:53,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:31:53,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:31:53,947 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:31:53,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:31:53,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:31:53,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:31:53,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:31:53,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:31:53,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:31:53,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:31:53,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:31:53,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:31:53,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:31:53,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:31:53,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:31:53,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:31:53,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:31:53,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:31:53,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:31:54,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:31:54,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:31:54,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:31:54,273 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:31:54,273 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:31:54,274 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-sorted-1.i [2020-07-17 22:31:54,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8281dcc0c/d1c3be2ae091433f9b0d427e8040f3f1/FLAGf364c854e [2020-07-17 22:31:54,875 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:31:54,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-sorted-1.i [2020-07-17 22:31:54,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8281dcc0c/d1c3be2ae091433f9b0d427e8040f3f1/FLAGf364c854e [2020-07-17 22:31:55,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8281dcc0c/d1c3be2ae091433f9b0d427e8040f3f1 [2020-07-17 22:31:55,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:31:55,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:31:55,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:31:55,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:31:55,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:31:55,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7464ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55, skipping insertion in model container [2020-07-17 22:31:55,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:31:55,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:31:55,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:31:55,787 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:31:55,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:31:55,910 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:31:55,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55 WrapperNode [2020-07-17 22:31:55,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:31:55,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:31:55,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:31:55,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:31:55,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:55,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (1/1) ... [2020-07-17 22:31:56,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:31:56,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:31:56,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:31:56,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:31:56,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (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 [2020-07-17 22:31:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:31:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:31:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:31:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-17 22:31:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-17 22:31:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-17 22:31:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-17 22:31:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-17 22:31:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-17 22:31:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-17 22:31:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-17 22:31:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-17 22:31:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-17 22:31:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-17 22:31:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-17 22:31:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-17 22:31:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-17 22:31:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-17 22:31:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-17 22:31:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-17 22:31:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-17 22:31:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-17 22:31:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-17 22:31:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-17 22:31:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-17 22:31:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-17 22:31:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-17 22:31:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-17 22:31:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-17 22:31:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-17 22:31:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-17 22:31:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-17 22:31:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-17 22:31:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-17 22:31:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-17 22:31:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-17 22:31:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-17 22:31:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-17 22:31:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-17 22:31:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-17 22:31:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-17 22:31:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-17 22:31:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-17 22:31:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-17 22:31:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-17 22:31:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-17 22:31:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-17 22:31:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-17 22:31:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-17 22:31:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-17 22:31:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-17 22:31:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-17 22:31:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-17 22:31:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:31:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-17 22:31:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-17 22:31:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 22:31:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-17 22:31:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-17 22:31:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-17 22:31:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-17 22:31:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-17 22:31:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:31:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-17 22:31:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-17 22:31:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-17 22:31:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 22:31:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-17 22:31:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-17 22:31:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-17 22:31:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-17 22:31:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-17 22:31:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-17 22:31:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-17 22:31:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-17 22:31:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-17 22:31:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-17 22:31:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-17 22:31:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-17 22:31:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-17 22:31:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-17 22:31:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-17 22:31:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-17 22:31:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:31:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:31:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:31:56,997 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:31:56,997 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-07-17 22:31:57,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:31:57 BoogieIcfgContainer [2020-07-17 22:31:57,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:31:57,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:31:57,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:31:57,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:31:57,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:31:55" (1/3) ... [2020-07-17 22:31:57,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5ebf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:31:57, skipping insertion in model container [2020-07-17 22:31:57,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:31:55" (2/3) ... [2020-07-17 22:31:57,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5ebf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:31:57, skipping insertion in model container [2020-07-17 22:31:57,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:31:57" (3/3) ... [2020-07-17 22:31:57,012 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-sorted-1.i [2020-07-17 22:31:57,024 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:31:57,032 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-07-17 22:31:57,047 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-07-17 22:31:57,074 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:31:57,075 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:31:57,075 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:31:57,075 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:31:57,075 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:31:57,076 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:31:57,076 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:31:57,076 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:31:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-07-17 22:31:57,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-17 22:31:57,123 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:31:57,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:31:57,125 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:31:57,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:31:57,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1780468538, now seen corresponding path program 1 times [2020-07-17 22:31:57,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:31:57,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656938537] [2020-07-17 22:31:57,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:31:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:31:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:31:57,366 INFO L280 TraceCheckUtils]: 0: Hoare triple {69#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {64#true} is VALID [2020-07-17 22:31:57,367 INFO L280 TraceCheckUtils]: 1: Hoare triple {64#true} assume true; {64#true} is VALID [2020-07-17 22:31:57,367 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {64#true} {64#true} #235#return; {64#true} is VALID [2020-07-17 22:31:57,371 INFO L263 TraceCheckUtils]: 0: Hoare triple {64#true} call ULTIMATE.init(); {69#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:31:57,372 INFO L280 TraceCheckUtils]: 1: Hoare triple {69#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {64#true} is VALID [2020-07-17 22:31:57,372 INFO L280 TraceCheckUtils]: 2: Hoare triple {64#true} assume true; {64#true} is VALID [2020-07-17 22:31:57,373 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {64#true} {64#true} #235#return; {64#true} is VALID [2020-07-17 22:31:57,373 INFO L263 TraceCheckUtils]: 4: Hoare triple {64#true} call #t~ret29 := main(); {64#true} is VALID [2020-07-17 22:31:57,373 INFO L280 TraceCheckUtils]: 5: Hoare triple {64#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4);call write~$Pointer$(0, 0, ~head~0.base, 4 + ~head~0.offset, 4);call write~int(0, ~head~0.base, 8 + ~head~0.offset, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset;~marked~0 := 0; {64#true} is VALID [2020-07-17 22:31:57,376 INFO L280 TraceCheckUtils]: 6: Hoare triple {64#true} assume !true; {65#false} is VALID [2020-07-17 22:31:57,376 INFO L280 TraceCheckUtils]: 7: Hoare triple {65#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {65#false} is VALID [2020-07-17 22:31:57,376 INFO L280 TraceCheckUtils]: 8: Hoare triple {65#false} assume !(0 != ~x~0.base || 0 != ~x~0.offset); {65#false} is VALID [2020-07-17 22:31:57,377 INFO L280 TraceCheckUtils]: 9: Hoare triple {65#false} assume !false; {65#false} is VALID [2020-07-17 22:31:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:31:57,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656938537] [2020-07-17 22:31:57,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:31:57,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:31:57,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320587473] [2020-07-17 22:31:57,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-17 22:31:57,391 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:31:57,396 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:31:57,419 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:31:57,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:31:57,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:31:57,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:31:57,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:31:57,433 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 3 states. [2020-07-17 22:31:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:31:57,818 INFO L93 Difference]: Finished difference Result 112 states and 178 transitions. [2020-07-17 22:31:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:31:57,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-17 22:31:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:31:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:31:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2020-07-17 22:31:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:31:57,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2020-07-17 22:31:57,843 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 178 transitions. [2020-07-17 22:31:58,090 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 178 edges. 178 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:31:58,122 INFO L225 Difference]: With dead ends: 112 [2020-07-17 22:31:58,122 INFO L226 Difference]: Without dead ends: 54 [2020-07-17 22:31:58,130 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 [2020-07-17 22:31:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-17 22:31:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-07-17 22:31:58,192 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:31:58,193 INFO L82 GeneralOperation]: Start isEquivalent. First operand 54 states. Second operand 54 states. [2020-07-17 22:31:58,193 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-17 22:31:58,193 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-17 22:31:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:31:58,204 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-07-17 22:31:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-07-17 22:31:58,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:31:58,206 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:31:58,206 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-17 22:31:58,207 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-17 22:31:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:31:58,217 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-07-17 22:31:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-07-17 22:31:58,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:31:58,218 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:31:58,218 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:31:58,218 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:31:58,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-17 22:31:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-07-17 22:31:58,236 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 10 [2020-07-17 22:31:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:31:58,236 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-07-17 22:31:58,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:31:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-07-17 22:31:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-17 22:31:58,238 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:31:58,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:31:58,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:31:58,240 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:31:58,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:31:58,241 INFO L82 PathProgramCache]: Analyzing trace with hash -658139069, now seen corresponding path program 1 times [2020-07-17 22:31:58,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:31:58,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864865763] [2020-07-17 22:31:58,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:31:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:31:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:31:58,416 INFO L280 TraceCheckUtils]: 0: Hoare triple {382#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {376#true} is VALID [2020-07-17 22:31:58,417 INFO L280 TraceCheckUtils]: 1: Hoare triple {376#true} assume true; {376#true} is VALID [2020-07-17 22:31:58,417 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {376#true} {376#true} #235#return; {376#true} is VALID [2020-07-17 22:31:58,420 INFO L263 TraceCheckUtils]: 0: Hoare triple {376#true} call ULTIMATE.init(); {382#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:31:58,420 INFO L280 TraceCheckUtils]: 1: Hoare triple {382#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {376#true} is VALID [2020-07-17 22:31:58,421 INFO L280 TraceCheckUtils]: 2: Hoare triple {376#true} assume true; {376#true} is VALID [2020-07-17 22:31:58,421 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {376#true} {376#true} #235#return; {376#true} is VALID [2020-07-17 22:31:58,421 INFO L263 TraceCheckUtils]: 4: Hoare triple {376#true} call #t~ret29 := main(); {376#true} is VALID [2020-07-17 22:31:58,424 INFO L280 TraceCheckUtils]: 5: Hoare triple {376#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4);call write~$Pointer$(0, 0, ~head~0.base, 4 + ~head~0.offset, 4);call write~int(0, ~head~0.base, 8 + ~head~0.offset, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset;~marked~0 := 0; {381#(= 0 main_~marked~0)} is VALID [2020-07-17 22:31:58,425 INFO L280 TraceCheckUtils]: 6: Hoare triple {381#(= 0 main_~marked~0)} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {381#(= 0 main_~marked~0)} is VALID [2020-07-17 22:31:58,425 INFO L280 TraceCheckUtils]: 7: Hoare triple {381#(= 0 main_~marked~0)} assume !(0 != #t~nondet1 || 0 == ~marked~0);havoc #t~nondet1; {377#false} is VALID [2020-07-17 22:31:58,426 INFO L280 TraceCheckUtils]: 8: Hoare triple {377#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {377#false} is VALID [2020-07-17 22:31:58,426 INFO L280 TraceCheckUtils]: 9: Hoare triple {377#false} assume !(0 != ~x~0.base || 0 != ~x~0.offset); {377#false} is VALID [2020-07-17 22:31:58,427 INFO L280 TraceCheckUtils]: 10: Hoare triple {377#false} assume !false; {377#false} is VALID [2020-07-17 22:31:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:31:58,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864865763] [2020-07-17 22:31:58,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:31:58,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:31:58,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449222560] [2020-07-17 22:31:58,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-17 22:31:58,433 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:31:58,433 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:31:58,452 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:31:58,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:31:58,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:31:58,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:31:58,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:31:58,454 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 4 states. [2020-07-17 22:31:58,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:31:58,833 INFO L93 Difference]: Finished difference Result 107 states and 130 transitions. [2020-07-17 22:31:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:31:58,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-17 22:31:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:31:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:31:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2020-07-17 22:31:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:31:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2020-07-17 22:31:58,841 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 130 transitions. [2020-07-17 22:31:59,036 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 130 edges. 130 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:31:59,039 INFO L225 Difference]: With dead ends: 107 [2020-07-17 22:31:59,040 INFO L226 Difference]: Without dead ends: 59 [2020-07-17 22:31:59,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:31:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-07-17 22:31:59,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2020-07-17 22:31:59,073 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:31:59,074 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 58 states. [2020-07-17 22:31:59,074 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 58 states. [2020-07-17 22:31:59,074 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 58 states. [2020-07-17 22:31:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:31:59,078 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2020-07-17 22:31:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2020-07-17 22:31:59,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:31:59,082 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:31:59,082 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 59 states. [2020-07-17 22:31:59,082 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 59 states. [2020-07-17 22:31:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:31:59,087 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2020-07-17 22:31:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2020-07-17 22:31:59,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:31:59,093 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:31:59,093 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:31:59,094 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:31:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-17 22:31:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-07-17 22:31:59,097 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 11 [2020-07-17 22:31:59,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:31:59,098 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-07-17 22:31:59,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:31:59,098 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-07-17 22:31:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-17 22:31:59,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:31:59,105 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:31:59,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:31:59,106 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:31:59,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:31:59,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1481014552, now seen corresponding path program 1 times [2020-07-17 22:31:59,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:31:59,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953976309] [2020-07-17 22:31:59,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:31:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:31:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:31:59,274 INFO L280 TraceCheckUtils]: 0: Hoare triple {706#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {699#true} is VALID [2020-07-17 22:31:59,275 INFO L280 TraceCheckUtils]: 1: Hoare triple {699#true} assume true; {699#true} is VALID [2020-07-17 22:31:59,275 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {699#true} {699#true} #235#return; {699#true} is VALID [2020-07-17 22:31:59,276 INFO L263 TraceCheckUtils]: 0: Hoare triple {699#true} call ULTIMATE.init(); {706#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:31:59,277 INFO L280 TraceCheckUtils]: 1: Hoare triple {706#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {699#true} is VALID [2020-07-17 22:31:59,277 INFO L280 TraceCheckUtils]: 2: Hoare triple {699#true} assume true; {699#true} is VALID [2020-07-17 22:31:59,277 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {699#true} {699#true} #235#return; {699#true} is VALID [2020-07-17 22:31:59,278 INFO L263 TraceCheckUtils]: 4: Hoare triple {699#true} call #t~ret29 := main(); {699#true} is VALID [2020-07-17 22:31:59,279 INFO L280 TraceCheckUtils]: 5: Hoare triple {699#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4);call write~$Pointer$(0, 0, ~head~0.base, 4 + ~head~0.offset, 4);call write~int(0, ~head~0.base, 8 + ~head~0.offset, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset;~marked~0 := 0; {704#(not (= 0 main_~head~0.base))} is VALID [2020-07-17 22:31:59,281 INFO L280 TraceCheckUtils]: 6: Hoare triple {704#(not (= 0 main_~head~0.base))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {704#(not (= 0 main_~head~0.base))} is VALID [2020-07-17 22:31:59,283 INFO L280 TraceCheckUtils]: 7: Hoare triple {704#(not (= 0 main_~head~0.base))} assume !!(0 != #t~nondet1 || 0 == ~marked~0);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~x~0.base, ~x~0.offset, 4);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~x~0.base, ~x~0.offset, 4);call write~$Pointer$(~x~0.base, ~x~0.offset, #t~mem3.base, 4 + #t~mem3.offset, 4);havoc #t~mem3.base, #t~mem3.offset;call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~x~0.base, ~x~0.offset, 4);~x~0.base, ~x~0.offset := #t~mem4.base, #t~mem4.offset;havoc #t~mem4.base, #t~mem4.offset;call write~$Pointer$(0, 0, ~x~0.base, ~x~0.offset, 4);assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {704#(not (= 0 main_~head~0.base))} is VALID [2020-07-17 22:31:59,284 INFO L280 TraceCheckUtils]: 8: Hoare triple {704#(not (= 0 main_~head~0.base))} assume 0 != #t~nondet5;havoc #t~nondet5;~marked~0 := 1; {704#(not (= 0 main_~head~0.base))} is VALID [2020-07-17 22:31:59,285 INFO L280 TraceCheckUtils]: 9: Hoare triple {704#(not (= 0 main_~head~0.base))} assume 0 != ~marked~0;call write~int(1, ~x~0.base, 8 + ~x~0.offset, 4); {704#(not (= 0 main_~head~0.base))} is VALID [2020-07-17 22:31:59,287 INFO L280 TraceCheckUtils]: 10: Hoare triple {704#(not (= 0 main_~head~0.base))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {704#(not (= 0 main_~head~0.base))} is VALID [2020-07-17 22:31:59,288 INFO L280 TraceCheckUtils]: 11: Hoare triple {704#(not (= 0 main_~head~0.base))} assume !(0 != #t~nondet1 || 0 == ~marked~0);havoc #t~nondet1; {704#(not (= 0 main_~head~0.base))} is VALID [2020-07-17 22:31:59,289 INFO L280 TraceCheckUtils]: 12: Hoare triple {704#(not (= 0 main_~head~0.base))} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {705#(not (= 0 main_~x~0.base))} is VALID [2020-07-17 22:31:59,290 INFO L280 TraceCheckUtils]: 13: Hoare triple {705#(not (= 0 main_~x~0.base))} assume !(0 != ~x~0.base || 0 != ~x~0.offset); {700#false} is VALID [2020-07-17 22:31:59,290 INFO L280 TraceCheckUtils]: 14: Hoare triple {700#false} assume !false; {700#false} is VALID [2020-07-17 22:31:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 22:31:59,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953976309] [2020-07-17 22:31:59,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:31:59,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:31:59,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883269457] [2020-07-17 22:31:59,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-17 22:31:59,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:31:59,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:31:59,315 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:31:59,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:31:59,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:31:59,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:31:59,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:31:59,316 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 5 states. [2020-07-17 22:31:59,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:31:59,786 INFO L93 Difference]: Finished difference Result 91 states and 109 transitions. [2020-07-17 22:31:59,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:31:59,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-17 22:31:59,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:31:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:31:59,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2020-07-17 22:31:59,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:31:59,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2020-07-17 22:31:59,811 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 104 transitions. [2020-07-17 22:31:59,967 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 104 edges. 104 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:31:59,971 INFO L225 Difference]: With dead ends: 91 [2020-07-17 22:31:59,971 INFO L226 Difference]: Without dead ends: 89 [2020-07-17 22:31:59,972 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 [2020-07-17 22:31:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-17 22:32:00,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 56. [2020-07-17 22:32:00,004 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:32:00,004 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 56 states. [2020-07-17 22:32:00,004 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 56 states. [2020-07-17 22:32:00,004 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 56 states. [2020-07-17 22:32:00,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:32:00,010 INFO L93 Difference]: Finished difference Result 89 states and 107 transitions. [2020-07-17 22:32:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 107 transitions. [2020-07-17 22:32:00,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:32:00,012 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:32:00,012 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 89 states. [2020-07-17 22:32:00,012 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 89 states. [2020-07-17 22:32:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:32:00,020 INFO L93 Difference]: Finished difference Result 89 states and 107 transitions. [2020-07-17 22:32:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 107 transitions. [2020-07-17 22:32:00,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:32:00,022 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:32:00,022 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:32:00,022 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:32:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-17 22:32:00,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2020-07-17 22:32:00,029 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 15 [2020-07-17 22:32:00,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:32:00,029 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2020-07-17 22:32:00,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:32:00,029 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2020-07-17 22:32:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 22:32:00,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:32:00,030 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:32:00,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 22:32:00,031 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:32:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:32:00,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1774425742, now seen corresponding path program 1 times [2020-07-17 22:32:00,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:32:00,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440525282] [2020-07-17 22:32:00,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:32:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:32:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:32:00,217 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:32:00,217 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:32:00,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 22:32:00,296 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-17 22:32:00,297 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: L995-3 has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: L1016-4 has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: L1016-4 has no Hoare annotation [2020-07-17 22:32:00,298 WARN L170 areAnnotationChecker]: L1016-4 has no Hoare annotation [2020-07-17 22:32:00,299 WARN L170 areAnnotationChecker]: L1003 has no Hoare annotation [2020-07-17 22:32:00,299 WARN L170 areAnnotationChecker]: L1003 has no Hoare annotation [2020-07-17 22:32:00,299 WARN L170 areAnnotationChecker]: L1016-5 has no Hoare annotation [2020-07-17 22:32:00,301 WARN L170 areAnnotationChecker]: L1016-1 has no Hoare annotation [2020-07-17 22:32:00,301 WARN L170 areAnnotationChecker]: L1016-1 has no Hoare annotation [2020-07-17 22:32:00,301 WARN L170 areAnnotationChecker]: L1016-3 has no Hoare annotation [2020-07-17 22:32:00,301 WARN L170 areAnnotationChecker]: L1016-3 has no Hoare annotation [2020-07-17 22:32:00,301 WARN L170 areAnnotationChecker]: L1003-2 has no Hoare annotation [2020-07-17 22:32:00,301 WARN L170 areAnnotationChecker]: L1003-2 has no Hoare annotation [2020-07-17 22:32:00,301 WARN L170 areAnnotationChecker]: L1019-5 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1019-5 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1027-6 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1027-6 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1024-4 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1024 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1024 has no Hoare annotation [2020-07-17 22:32:00,302 WARN L170 areAnnotationChecker]: L1019-3 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1019-3 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1034 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1034 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1024-2 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1024-2 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1034-2 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1027-5 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1027-5 has no Hoare annotation [2020-07-17 22:32:00,303 WARN L170 areAnnotationChecker]: L1048-5 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1048-5 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1027-1 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1027-1 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1055-1 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1055-1 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1055-1 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1048-1 has no Hoare annotation [2020-07-17 22:32:00,304 WARN L170 areAnnotationChecker]: L1048-1 has no Hoare annotation [2020-07-17 22:32:00,306 WARN L170 areAnnotationChecker]: L1027-2 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1027-2 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1027-4 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1027-4 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1055-2 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1058-5 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1058-5 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1048-3 has no Hoare annotation [2020-07-17 22:32:00,307 WARN L170 areAnnotationChecker]: L1048-3 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1064-2 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1064-2 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1064-2 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1058-1 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1058-1 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1059-3 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1059-3 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1059-3 has no Hoare annotation [2020-07-17 22:32:00,308 WARN L170 areAnnotationChecker]: L1051-5 has no Hoare annotation [2020-07-17 22:32:00,309 WARN L170 areAnnotationChecker]: L1051-5 has no Hoare annotation [2020-07-17 22:32:00,309 WARN L170 areAnnotationChecker]: L1064-3 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1058-2 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1058-2 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1058-4 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1058-4 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1059-4 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1059 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1059 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1059-2 has no Hoare annotation [2020-07-17 22:32:00,310 WARN L170 areAnnotationChecker]: L1059-2 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1052-3 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1052-3 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1052-3 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1051-2 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1051-2 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1051-4 has no Hoare annotation [2020-07-17 22:32:00,311 WARN L170 areAnnotationChecker]: L1051-4 has no Hoare annotation [2020-07-17 22:32:00,312 WARN L170 areAnnotationChecker]: L1052-4 has no Hoare annotation [2020-07-17 22:32:00,312 WARN L170 areAnnotationChecker]: L1052 has no Hoare annotation [2020-07-17 22:32:00,312 WARN L170 areAnnotationChecker]: L1052 has no Hoare annotation [2020-07-17 22:32:00,312 WARN L170 areAnnotationChecker]: L1052-2 has no Hoare annotation [2020-07-17 22:32:00,312 WARN L170 areAnnotationChecker]: L1052-2 has no Hoare annotation [2020-07-17 22:32:00,312 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:32:00,312 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:32:00,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:32:00 BoogieIcfgContainer [2020-07-17 22:32:00,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:32:00,318 INFO L168 Benchmark]: Toolchain (without parser) took 5114.53 ms. Allocated memory was 143.1 MB in the beginning and 251.1 MB in the end (delta: 108.0 MB). Free memory was 100.4 MB in the beginning and 177.0 MB in the end (delta: -76.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:00,319 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 22:32:00,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.11 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 167.0 MB in the end (delta: -67.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:00,320 INFO L168 Benchmark]: Boogie Preprocessor took 90.55 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 162.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:00,321 INFO L168 Benchmark]: RCFGBuilder took 999.98 ms. Allocated memory is still 201.9 MB. Free memory was 162.8 MB in the beginning and 90.3 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:00,322 INFO L168 Benchmark]: TraceAbstraction took 3311.31 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 90.3 MB in the beginning and 177.0 MB in the end (delta: -86.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:32:00,326 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.11 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 167.0 MB in the end (delta: -67.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.55 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 162.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 999.98 ms. Allocated memory is still 201.9 MB. Free memory was 162.8 MB in the beginning and 90.3 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3311.31 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 90.3 MB in the beginning and 177.0 MB in the end (delta: -86.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, marked=0, x={-1:0}] [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] x->next = malloc(sizeof(SLL)) [L999] EXPR x->next [L999] x->next->prev = x [L1000] EXPR x->next [L1000] x = x->next [L1001] x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=1, x={-2:0}] [L1008] COND TRUE \read(marked) [L1009] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=1, x={-2:0}] [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=1, x={-1:0}] [L1016] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=1, x={-1:0}] [L1017] marked = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=0, x={-1:0}] [L1019] EXPR x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR x->next [L1019] EXPR x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=0, x={-1:0}, x->next={-2:0}, x->next={-2:0}, x->next != ((void*)0) && x->next->data == 0=0, x->next->data=1] [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=0, x={-1:0}, x->next={-2:0}, x->next != ((void*)0) && __VERIFIER_nondet_int()=1] [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR x->next [L1026] x = x->next [L1027] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=0, x={-2:0}, x->data=1] [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, marked=0, x={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 168 SDtfs, 156 SDslu, 68 SDs, 0 SdLazy, 243 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...