java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:36,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:36,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:36,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:36,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:36,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:36,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:36,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:36,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:36,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:36,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:36,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:36,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:36,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:36,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:36,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:36,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:36,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:36,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:36,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:36,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:36,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:36,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:36,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:36,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:36,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:36,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:36,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:36,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:36,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:36,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:36,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:36,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:36,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:36,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:36,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:36,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:36,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:36,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:36,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:36,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:36,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:47:36,939 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:36,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:36,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:36,940 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:36,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:36,941 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:36,941 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:36,941 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:36,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:36,941 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:36,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:36,942 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:36,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:36,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:36,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:36,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:36,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:36,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:36,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:36,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:36,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:36,944 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:36,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:36,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:36,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:36,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:36,945 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:36,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:36,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:36,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:36,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:37,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:37,005 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:37,006 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:37,007 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:37,008 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-09-10 01:47:37,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c8642f3/f19057493d50422c847767fbabf2ad57/FLAG1fe0b2f38 [2019-09-10 01:47:37,652 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:37,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-09-10 01:47:37,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c8642f3/f19057493d50422c847767fbabf2ad57/FLAG1fe0b2f38 [2019-09-10 01:47:37,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c8642f3/f19057493d50422c847767fbabf2ad57 [2019-09-10 01:47:37,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:37,952 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:37,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:37,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:37,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:37,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:37" (1/1) ... [2019-09-10 01:47:37,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a85c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:37, skipping insertion in model container [2019-09-10 01:47:37,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:37" (1/1) ... [2019-09-10 01:47:37,969 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:38,025 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:38,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:38,459 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:38,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:38,561 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:38,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38 WrapperNode [2019-09-10 01:47:38,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:38,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:38,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:38,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:38,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... [2019-09-10 01:47:38,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... [2019-09-10 01:47:38,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... [2019-09-10 01:47:38,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... [2019-09-10 01:47:38,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... [2019-09-10 01:47:38,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... [2019-09-10 01:47:38,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... [2019-09-10 01:47:38,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:38,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:38,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:38,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:38,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:47:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:47:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-10 01:47:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:47:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:47:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-10 01:47:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:47:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:47:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:39,035 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-10 01:47:39,270 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:39,271 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-10 01:47:39,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:39 BoogieIcfgContainer [2019-09-10 01:47:39,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:39,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:39,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:39,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:39,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:37" (1/3) ... [2019-09-10 01:47:39,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3945d8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:39, skipping insertion in model container [2019-09-10 01:47:39,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:38" (2/3) ... [2019-09-10 01:47:39,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3945d8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:39, skipping insertion in model container [2019-09-10 01:47:39,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:39" (3/3) ... [2019-09-10 01:47:39,280 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_search_value-1.i [2019-09-10 01:47:39,291 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:39,299 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:47:39,317 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:47:39,346 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:39,346 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:39,347 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:39,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:39,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:39,349 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:39,349 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:39,349 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:39,365 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-10 01:47:39,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-10 01:47:39,376 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:39,377 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:39,379 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:39,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:39,385 INFO L82 PathProgramCache]: Analyzing trace with hash -2052998842, now seen corresponding path program 1 times [2019-09-10 01:47:39,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:39,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:39,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,436 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:39,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:39,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:39,522 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:39,527 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:39,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:39,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:39,540 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-09-10 01:47:39,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:39,558 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2019-09-10 01:47:39,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:39,559 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-09-10 01:47:39,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:39,566 INFO L225 Difference]: With dead ends: 31 [2019-09-10 01:47:39,567 INFO L226 Difference]: Without dead ends: 22 [2019-09-10 01:47:39,568 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:39,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-10 01:47:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-10 01:47:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-10 01:47:39,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-09-10 01:47:39,600 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2019-09-10 01:47:39,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:39,601 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-09-10 01:47:39,601 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:39,601 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-09-10 01:47:39,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-10 01:47:39,602 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:39,602 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:39,602 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:39,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:39,603 INFO L82 PathProgramCache]: Analyzing trace with hash 702499287, now seen corresponding path program 1 times [2019-09-10 01:47:39,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:39,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:39,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,604 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:39,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:39,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:39,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:39,669 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:39,671 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:39,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:39,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:39,672 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2019-09-10 01:47:39,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:39,704 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2019-09-10 01:47:39,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:39,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-09-10 01:47:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:39,706 INFO L225 Difference]: With dead ends: 23 [2019-09-10 01:47:39,706 INFO L226 Difference]: Without dead ends: 23 [2019-09-10 01:47:39,707 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-09-10 01:47:39,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-09-10 01:47:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-10 01:47:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-09-10 01:47:39,714 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2019-09-10 01:47:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:39,714 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-09-10 01:47:39,714 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-09-10 01:47:39,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-10 01:47:39,716 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:39,716 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:39,716 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:39,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:39,717 INFO L82 PathProgramCache]: Analyzing trace with hash 759757589, now seen corresponding path program 1 times [2019-09-10 01:47:39,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:39,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:39,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,718 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:39,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:39,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:39,767 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:39,767 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:39,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:39,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:39,768 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 4 states. [2019-09-10 01:47:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:39,821 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-09-10 01:47:39,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:47:39,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-09-10 01:47:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:39,823 INFO L225 Difference]: With dead ends: 28 [2019-09-10 01:47:39,824 INFO L226 Difference]: Without dead ends: 28 [2019-09-10 01:47:39,825 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-10 01:47:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2019-09-10 01:47:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-10 01:47:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-09-10 01:47:39,832 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 15 [2019-09-10 01:47:39,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:39,833 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-09-10 01:47:39,833 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2019-09-10 01:47:39,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-10 01:47:39,836 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:39,836 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:39,836 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:39,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:39,837 INFO L82 PathProgramCache]: Analyzing trace with hash 299645265, now seen corresponding path program 1 times [2019-09-10 01:47:39,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:39,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:39,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:39,841 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 01:47:39,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:39,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:39,964 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:39,965 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:39,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:39,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:39,966 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 4 states. [2019-09-10 01:47:40,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:40,036 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-09-10 01:47:40,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:40,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-09-10 01:47:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:40,038 INFO L225 Difference]: With dead ends: 33 [2019-09-10 01:47:40,038 INFO L226 Difference]: Without dead ends: 33 [2019-09-10 01:47:40,039 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-10 01:47:40,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2019-09-10 01:47:40,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-10 01:47:40,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-10 01:47:40,043 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2019-09-10 01:47:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:40,043 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-10 01:47:40,044 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:40,044 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-10 01:47:40,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-10 01:47:40,044 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:40,045 INFO L399 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] [2019-09-10 01:47:40,045 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:40,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:40,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1130545059, now seen corresponding path program 1 times [2019-09-10 01:47:40,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:40,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:40,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:40,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:40,047 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 01:47:40,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:40,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:47:40,102 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:40,102 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:47:40,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:47:40,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:40,103 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 5 states. [2019-09-10 01:47:40,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:40,170 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2019-09-10 01:47:40,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:47:40,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-09-10 01:47:40,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:40,172 INFO L225 Difference]: With dead ends: 29 [2019-09-10 01:47:40,172 INFO L226 Difference]: Without dead ends: 29 [2019-09-10 01:47:40,172 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:47:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-10 01:47:40,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-09-10 01:47:40,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-09-10 01:47:40,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-09-10 01:47:40,177 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 25 [2019-09-10 01:47:40,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:40,177 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-09-10 01:47:40,177 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:47:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-09-10 01:47:40,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-10 01:47:40,178 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:40,178 INFO L399 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] [2019-09-10 01:47:40,179 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:40,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:40,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1128698017, now seen corresponding path program 1 times [2019-09-10 01:47:40,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:40,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:40,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:40,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:40,181 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 01:47:40,239 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:47:40,239 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:47:40,240 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2019-09-10 01:47:40,243 INFO L207 CegarAbsIntRunner]: [7], [8], [9], [15], [17], [22], [25], [27], [31], [33], [39], [41], [45], [52], [54], [57], [61], [66], [68], [74], [76], [92], [93], [94] [2019-09-10 01:47:40,291 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:47:40,291 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:47:40,393 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:47:40,395 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 38 variables. [2019-09-10 01:47:40,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:40,400 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:47:40,433 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:47:40,433 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:47:40,435 INFO L420 sIntCurrentIteration]: We unified 24 AI predicates to 24 [2019-09-10 01:47:40,435 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:47:40,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:47:40,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-10 01:47:40,436 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:40,436 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:40,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:40,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:40,437 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 2 states. [2019-09-10 01:47:40,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:40,438 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:47:40,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:40,438 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-09-10 01:47:40,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:40,439 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:47:40,439 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:47:40,439 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:47:40,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:47:40,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:47:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:47:40,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-09-10 01:47:40,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:40,440 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:47:40,441 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:40,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:47:40,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:47:40,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:40 BoogieIcfgContainer [2019-09-10 01:47:40,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:40,449 INFO L168 Benchmark]: Toolchain (without parser) took 2496.30 ms. Allocated memory was 140.5 MB in the beginning and 228.1 MB in the end (delta: 87.6 MB). Free memory was 86.3 MB in the beginning and 165.6 MB in the end (delta: -79.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:40,450 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:47:40,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.28 ms. Allocated memory was 140.5 MB in the beginning and 201.3 MB in the end (delta: 60.8 MB). Free memory was 86.1 MB in the beginning and 167.4 MB in the end (delta: -81.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:40,452 INFO L168 Benchmark]: Boogie Preprocessor took 96.23 ms. Allocated memory is still 201.3 MB. Free memory was 167.4 MB in the beginning and 164.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:40,453 INFO L168 Benchmark]: RCFGBuilder took 612.75 ms. Allocated memory is still 201.3 MB. Free memory was 164.6 MB in the beginning and 123.9 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:40,454 INFO L168 Benchmark]: TraceAbstraction took 1173.19 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 123.3 MB in the beginning and 165.6 MB in the end (delta: -42.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:47:40,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 609.28 ms. Allocated memory was 140.5 MB in the beginning and 201.3 MB in the end (delta: 60.8 MB). Free memory was 86.1 MB in the beginning and 167.4 MB in the end (delta: -81.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.23 ms. Allocated memory is still 201.3 MB. Free memory was 167.4 MB in the beginning and 164.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 612.75 ms. Allocated memory is still 201.3 MB. Free memory was 164.6 MB in the beginning and 123.9 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1173.19 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 123.3 MB in the beginning and 165.6 MB in the end (delta: -42.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 565]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 32 SDslu, 135 SDs, 0 SdLazy, 63 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9583333333333334 AbsIntWeakeningRatio, 1.2083333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.25 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 3385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 9/11 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...