java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default-Const.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 19:11:27,168 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 19:11:27,170 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 19:11:27,186 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 19:11:27,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 19:11:27,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 19:11:27,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 19:11:27,191 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 19:11:27,192 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 19:11:27,193 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 19:11:27,194 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 19:11:27,194 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 19:11:27,195 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 19:11:27,196 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 19:11:27,197 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 19:11:27,198 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 19:11:27,199 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 19:11:27,201 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 19:11:27,203 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 19:11:27,205 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 19:11:27,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 19:11:27,208 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 19:11:27,210 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-14 19:11:27,211 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-14 19:11:27,211 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-14 19:11:27,212 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-14 19:11:27,213 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-14 19:11:27,214 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-14 19:11:27,215 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-14 19:11:27,216 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-14 19:11:27,216 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-14 19:11:27,217 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-14 19:11:27,217 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-14 19:11:27,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-14 19:11:27,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-14 19:11:27,220 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-14 19:11:27,220 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default-Const.epf [2018-11-14 19:11:27,249 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 19:11:27,249 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 19:11:27,252 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 19:11:27,252 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 19:11:27,255 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 19:11:27,255 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 19:11:27,256 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 19:11:27,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 19:11:27,256 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 19:11:27,256 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 19:11:27,256 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 19:11:27,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 19:11:27,258 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 19:11:27,258 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 19:11:27,258 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 19:11:27,258 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 19:11:27,259 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 19:11:27,259 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 19:11:27,259 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 19:11:27,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 19:11:27,259 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 19:11:27,261 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 19:11:27,261 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 19:11:27,261 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 19:11:27,261 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 19:11:27,261 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 19:11:27,261 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 19:11:27,262 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 19:11:27,262 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 19:11:27,262 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 19:11:27,262 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 19:11:27,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 19:11:27,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 19:11:27,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 19:11:27,329 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 19:11:27,330 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 19:11:27,331 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-14 19:11:27,393 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e1922f8/fe4b511aec034af4906ebfbf00b930bd/FLAG7f6b5e1ad [2018-11-14 19:11:27,894 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 19:11:27,895 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-14 19:11:27,908 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e1922f8/fe4b511aec034af4906ebfbf00b930bd/FLAG7f6b5e1ad [2018-11-14 19:11:27,922 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e1922f8/fe4b511aec034af4906ebfbf00b930bd [2018-11-14 19:11:27,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 19:11:27,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 19:11:27,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 19:11:27,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 19:11:27,938 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 19:11:27,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:11:27" (1/1) ... [2018-11-14 19:11:27,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f854ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:27, skipping insertion in model container [2018-11-14 19:11:27,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:11:27" (1/1) ... [2018-11-14 19:11:27,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 19:11:28,009 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 19:11:28,454 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:11:28,471 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 19:11:28,560 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:11:28,729 INFO L195 MainTranslator]: Completed translation [2018-11-14 19:11:28,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28 WrapperNode [2018-11-14 19:11:28,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 19:11:28,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 19:11:28,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 19:11:28,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 19:11:28,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... [2018-11-14 19:11:28,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... [2018-11-14 19:11:28,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... [2018-11-14 19:11:28,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... [2018-11-14 19:11:28,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... [2018-11-14 19:11:28,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... [2018-11-14 19:11:28,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... [2018-11-14 19:11:28,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 19:11:28,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 19:11:28,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 19:11:28,850 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 19:11:28,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 19:11:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 19:11:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 19:11:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 19:11:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-14 19:11:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-14 19:11:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-14 19:11:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-14 19:11:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-14 19:11:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-14 19:11:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-14 19:11:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-14 19:11:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-14 19:11:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-14 19:11:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-14 19:11:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-14 19:11:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-14 19:11:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-14 19:11:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-14 19:11:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-14 19:11:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-14 19:11:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-14 19:11:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-14 19:11:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-14 19:11:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-14 19:11:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-14 19:11:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-14 19:11:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-14 19:11:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-14 19:11:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-14 19:11:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-14 19:11:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-14 19:11:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-14 19:11:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-14 19:11:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-14 19:11:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-14 19:11:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-14 19:11:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-14 19:11:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-14 19:11:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-14 19:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-14 19:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-14 19:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-14 19:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-14 19:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-14 19:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-14 19:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-14 19:11:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-14 19:11:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-14 19:11:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-14 19:11:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-14 19:11:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-14 19:11:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-14 19:11:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-14 19:11:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-14 19:11:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-14 19:11:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-14 19:11:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-14 19:11:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-14 19:11:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-14 19:11:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-14 19:11:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-14 19:11:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-14 19:11:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-14 19:11:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-14 19:11:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-14 19:11:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-14 19:11:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-14 19:11:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-14 19:11:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-14 19:11:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-14 19:11:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-14 19:11:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-14 19:11:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-14 19:11:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-14 19:11:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-14 19:11:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-14 19:11:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-14 19:11:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-14 19:11:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-14 19:11:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-14 19:11:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-14 19:11:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-14 19:11:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-14 19:11:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-14 19:11:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-14 19:11:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-14 19:11:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-14 19:11:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-14 19:11:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-14 19:11:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-14 19:11:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-14 19:11:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-14 19:11:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-14 19:11:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-14 19:11:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-14 19:11:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-14 19:11:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-14 19:11:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-14 19:11:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-14 19:11:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-14 19:11:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-14 19:11:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-14 19:11:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-14 19:11:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-14 19:11:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-14 19:11:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-14 19:11:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 19:11:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 19:11:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 19:11:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 19:11:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-14 19:11:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-14 19:11:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-14 19:11:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-14 19:11:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 19:11:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 19:11:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 19:11:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-14 19:11:29,956 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 19:11:29,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:11:29 BoogieIcfgContainer [2018-11-14 19:11:29,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 19:11:29,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 19:11:29,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 19:11:29,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 19:11:29,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 07:11:27" (1/3) ... [2018-11-14 19:11:29,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56267590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:11:29, skipping insertion in model container [2018-11-14 19:11:29,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:28" (2/3) ... [2018-11-14 19:11:29,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56267590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:11:29, skipping insertion in model container [2018-11-14 19:11:29,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:11:29" (3/3) ... [2018-11-14 19:11:29,967 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-14 19:11:29,977 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 19:11:29,984 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-14 19:11:30,000 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-14 19:11:30,033 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 19:11:30,034 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 19:11:30,034 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 19:11:30,034 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 19:11:30,034 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 19:11:30,035 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 19:11:30,035 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 19:11:30,035 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 19:11:30,035 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 19:11:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-14 19:11:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-14 19:11:30,061 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:11:30,062 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:11:30,065 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:11:30,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:11:30,072 INFO L82 PathProgramCache]: Analyzing trace with hash -679447583, now seen corresponding path program 1 times [2018-11-14 19:11:30,074 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:11:30,074 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:11:30,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:30,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:11:30,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 19:11:30,242 INFO L256 TraceCheckUtils]: 0: Hoare triple {46#true} call ULTIMATE.init(); {46#true} is VALID [2018-11-14 19:11:30,247 INFO L273 TraceCheckUtils]: 1: Hoare triple {46#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {46#true} is VALID [2018-11-14 19:11:30,247 INFO L273 TraceCheckUtils]: 2: Hoare triple {46#true} assume true; {46#true} is VALID [2018-11-14 19:11:30,248 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {46#true} {46#true} #137#return; {46#true} is VALID [2018-11-14 19:11:30,248 INFO L256 TraceCheckUtils]: 4: Hoare triple {46#true} call #t~ret17 := main(); {46#true} is VALID [2018-11-14 19:11:30,248 INFO L273 TraceCheckUtils]: 5: Hoare triple {46#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~head~0.base, ~head~0.offset + 0, 4);call write~int(0, ~head~0.base, ~head~0.offset + 4, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset;~state~0 := 1; {46#true} is VALID [2018-11-14 19:11:30,263 INFO L273 TraceCheckUtils]: 6: Hoare triple {46#true} assume !true; {47#false} is VALID [2018-11-14 19:11:30,264 INFO L273 TraceCheckUtils]: 7: Hoare triple {47#false} call write~int(~state~0, ~x~0.base, ~x~0.offset + 4, 4);call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~head~0.base, ~head~0.offset + 0, 4);~x~0.base, ~x~0.offset := #t~mem5.base, #t~mem5.offset;havoc #t~mem5.base, #t~mem5.offset; {47#false} is VALID [2018-11-14 19:11:30,264 INFO L273 TraceCheckUtils]: 8: Hoare triple {47#false} assume true; {47#false} is VALID [2018-11-14 19:11:30,264 INFO L273 TraceCheckUtils]: 9: Hoare triple {47#false} assume !(0 != ~x~0.base || 0 != ~x~0.offset); {47#false} is VALID [2018-11-14 19:11:30,265 INFO L273 TraceCheckUtils]: 10: Hoare triple {47#false} assume !false; {47#false} is VALID [2018-11-14 19:11:30,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 19:11:30,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 19:11:30,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-14 19:11:30,276 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-14 19:11:30,279 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 19:11:30,283 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-14 19:11:30,419 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:30,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-14 19:11:30,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-14 19:11:30,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 19:11:30,432 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-14 19:11:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:30,568 INFO L93 Difference]: Finished difference Result 80 states and 116 transitions. [2018-11-14 19:11:30,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-14 19:11:30,568 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-14 19:11:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 19:11:30,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 19:11:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 116 transitions. [2018-11-14 19:11:30,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 19:11:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 116 transitions. [2018-11-14 19:11:30,591 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 116 transitions. [2018-11-14 19:11:31,138 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 116 edges. 116 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:31,151 INFO L225 Difference]: With dead ends: 80 [2018-11-14 19:11:31,151 INFO L226 Difference]: Without dead ends: 34 [2018-11-14 19:11:31,155 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 19:11:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-14 19:11:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-14 19:11:31,199 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 19:11:31,200 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2018-11-14 19:11:31,200 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2018-11-14 19:11:31,201 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2018-11-14 19:11:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:31,205 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-14 19:11:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-14 19:11:31,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:31,206 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:31,206 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2018-11-14 19:11:31,207 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2018-11-14 19:11:31,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:31,211 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-14 19:11:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-14 19:11:31,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:31,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:31,212 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 19:11:31,213 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 19:11:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-14 19:11:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-14 19:11:31,217 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 11 [2018-11-14 19:11:31,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 19:11:31,218 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-14 19:11:31,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-14 19:11:31,218 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-14 19:11:31,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 19:11:31,219 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:11:31,219 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:11:31,220 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:11:31,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:11:31,220 INFO L82 PathProgramCache]: Analyzing trace with hash -267207819, now seen corresponding path program 1 times [2018-11-14 19:11:31,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:11:31,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:11:31,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:31,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:11:31,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 19:11:31,404 INFO L256 TraceCheckUtils]: 0: Hoare triple {254#true} call ULTIMATE.init(); {254#true} is VALID [2018-11-14 19:11:31,405 INFO L273 TraceCheckUtils]: 1: Hoare triple {254#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {254#true} is VALID [2018-11-14 19:11:31,405 INFO L273 TraceCheckUtils]: 2: Hoare triple {254#true} assume true; {254#true} is VALID [2018-11-14 19:11:31,405 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {254#true} {254#true} #137#return; {254#true} is VALID [2018-11-14 19:11:31,405 INFO L256 TraceCheckUtils]: 4: Hoare triple {254#true} call #t~ret17 := main(); {254#true} is VALID [2018-11-14 19:11:31,410 INFO L273 TraceCheckUtils]: 5: Hoare triple {254#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~head~0.base, ~head~0.offset + 0, 4);call write~int(0, ~head~0.base, ~head~0.offset + 4, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset;~state~0 := 1; {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} is VALID [2018-11-14 19:11:31,412 INFO L273 TraceCheckUtils]: 6: Hoare triple {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} assume true; {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} is VALID [2018-11-14 19:11:31,412 INFO L273 TraceCheckUtils]: 7: Hoare triple {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} is VALID [2018-11-14 19:11:31,413 INFO L273 TraceCheckUtils]: 8: Hoare triple {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} assume !(#t~nondet1 != 0);havoc #t~nondet1; {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} is VALID [2018-11-14 19:11:31,414 INFO L273 TraceCheckUtils]: 9: Hoare triple {256#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))} call write~int(~state~0, ~x~0.base, ~x~0.offset + 4, 4);call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~head~0.base, ~head~0.offset + 0, 4);~x~0.base, ~x~0.offset := #t~mem5.base, #t~mem5.offset;havoc #t~mem5.base, #t~mem5.offset; {257#(not (= 0 main_~x~0.base))} is VALID [2018-11-14 19:11:31,415 INFO L273 TraceCheckUtils]: 10: Hoare triple {257#(not (= 0 main_~x~0.base))} assume true; {257#(not (= 0 main_~x~0.base))} is VALID [2018-11-14 19:11:31,415 INFO L273 TraceCheckUtils]: 11: Hoare triple {257#(not (= 0 main_~x~0.base))} assume !(0 != ~x~0.base || 0 != ~x~0.offset); {255#false} is VALID [2018-11-14 19:11:31,416 INFO L273 TraceCheckUtils]: 12: Hoare triple {255#false} assume !false; {255#false} is VALID [2018-11-14 19:11:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 19:11:31,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 19:11:31,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-14 19:11:31,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-14 19:11:31,421 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 19:11:31,422 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-14 19:11:31,548 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:31,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-14 19:11:31,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-14 19:11:31,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-14 19:11:31,549 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 4 states. [2018-11-14 19:11:31,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:31,859 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2018-11-14 19:11:31,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-14 19:11:31,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-14 19:11:31,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 19:11:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 19:11:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2018-11-14 19:11:31,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 19:11:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2018-11-14 19:11:31,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 50 transitions. [2018-11-14 19:11:31,993 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:31,995 INFO L225 Difference]: With dead ends: 44 [2018-11-14 19:11:31,995 INFO L226 Difference]: Without dead ends: 40 [2018-11-14 19:11:31,996 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-14 19:11:31,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-14 19:11:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2018-11-14 19:11:32,022 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 19:11:32,022 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand 30 states. [2018-11-14 19:11:32,023 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 30 states. [2018-11-14 19:11:32,023 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 30 states. [2018-11-14 19:11:32,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:32,028 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-11-14 19:11:32,028 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-11-14 19:11:32,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:32,029 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:32,029 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 40 states. [2018-11-14 19:11:32,029 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 40 states. [2018-11-14 19:11:32,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:32,033 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-11-14 19:11:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-11-14 19:11:32,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:32,034 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:32,034 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 19:11:32,034 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 19:11:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-14 19:11:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-11-14 19:11:32,045 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 13 [2018-11-14 19:11:32,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 19:11:32,046 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2018-11-14 19:11:32,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-14 19:11:32,046 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-11-14 19:11:32,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-14 19:11:32,047 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:11:32,047 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:11:32,047 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:11:32,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:11:32,048 INFO L82 PathProgramCache]: Analyzing trace with hash 18466047, now seen corresponding path program 1 times [2018-11-14 19:11:32,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:11:32,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:11:32,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:32,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:11:32,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 19:11:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 19:11:32,154 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-14 19:11:32,184 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: L1012-7 has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: L1012-7 has no Hoare annotation [2018-11-14 19:11:32,185 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L993-1 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L993-4 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L993-2 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L993-2 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L1017-6 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L1017-6 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L1000 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L1000 has no Hoare annotation [2018-11-14 19:11:32,186 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1019-3 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1019-3 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1002 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1002 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1000-1 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1017-2 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1017-2 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1017-4 has no Hoare annotation [2018-11-14 19:11:32,187 WARN L170 areAnnotationChecker]: L1017-4 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1019 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1019-4 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1004 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1004 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1012-6 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1012-6 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2018-11-14 19:11:32,188 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2018-11-14 19:11:32,189 WARN L170 areAnnotationChecker]: L1027-4 has no Hoare annotation [2018-11-14 19:11:32,189 WARN L170 areAnnotationChecker]: L1027-4 has no Hoare annotation [2018-11-14 19:11:32,189 WARN L170 areAnnotationChecker]: L1012-1 has no Hoare annotation [2018-11-14 19:11:32,189 WARN L170 areAnnotationChecker]: L1012-1 has no Hoare annotation [2018-11-14 19:11:32,189 WARN L170 areAnnotationChecker]: L1021-8 has no Hoare annotation [2018-11-14 19:11:32,189 WARN L170 areAnnotationChecker]: L1021-8 has no Hoare annotation [2018-11-14 19:11:32,189 WARN L170 areAnnotationChecker]: L1027-1 has no Hoare annotation [2018-11-14 19:11:32,190 WARN L170 areAnnotationChecker]: L1027-5 has no Hoare annotation [2018-11-14 19:11:32,190 WARN L170 areAnnotationChecker]: L1012-2 has no Hoare annotation [2018-11-14 19:11:32,190 WARN L170 areAnnotationChecker]: L1012-2 has no Hoare annotation [2018-11-14 19:11:32,190 WARN L170 areAnnotationChecker]: L1012-4 has no Hoare annotation [2018-11-14 19:11:32,190 WARN L170 areAnnotationChecker]: L1012-4 has no Hoare annotation [2018-11-14 19:11:32,190 WARN L170 areAnnotationChecker]: L1021-1 has no Hoare annotation [2018-11-14 19:11:32,190 WARN L170 areAnnotationChecker]: L1021-1 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1021-9 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1027-2 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1027-2 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1021-3 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1021-3 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1021-4 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1021-4 has no Hoare annotation [2018-11-14 19:11:32,191 WARN L170 areAnnotationChecker]: L1021-6 has no Hoare annotation [2018-11-14 19:11:32,192 WARN L170 areAnnotationChecker]: L1021-6 has no Hoare annotation [2018-11-14 19:11:32,192 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. [2018-11-14 19:11:32,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 07:11:32 BoogieIcfgContainer [2018-11-14 19:11:32,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 19:11:32,196 INFO L168 Benchmark]: Toolchain (without parser) took 4263.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -630.2 MB). Peak memory consumption was 128.9 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:32,198 INFO L168 Benchmark]: CDTParser took 1.33 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 19:11:32,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -820.1 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:32,199 INFO L168 Benchmark]: Boogie Preprocessor took 119.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:32,200 INFO L168 Benchmark]: RCFGBuilder took 1107.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:32,201 INFO L168 Benchmark]: TraceAbstraction took 2236.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:32,205 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -820.1 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1107.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2236.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1021]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] [L1017] COND FALSE !(0) VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] [L1019] EXPR, FCALL x->data VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}, x->data=1] [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data [L1021] EXPR, FCALL x->data [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}, x->data=1, x->next={11:0}, x->next={11:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=0] [L1021] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1021] __VERIFIER_error() VAL [head={11:0}, malloc(sizeof(SLL))={11:0}, state=1, x={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 43 locations, 3 error locations. UNSAFE Result, 2.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 SDtfs, 59 SDslu, 17 SDs, 0 SdLazy, 13 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...