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/heap-data/min_max.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:08,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:08,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:08,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:08,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:08,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:08,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:08,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:08,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:08,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:08,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:08,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:08,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:08,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:08,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:08,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:08,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:08,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:08,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:08,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:08,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:08,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:08,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:08,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:08,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:08,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:08,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:08,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:08,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:08,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:08,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:08,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:08,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:08,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:08,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:08,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:08,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:08,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:08,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:08,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:08,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:08,870 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 [2019-09-20 13:29:08,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:08,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:08,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:08,893 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:08,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:08,894 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:08,894 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:08,895 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:08,895 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:08,895 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:08,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:08,898 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:08,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:08,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:08,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:08,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:08,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:08,899 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:08,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:08,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:08,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:08,900 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:08,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:08,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:08,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:08,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:08,901 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:08,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:08,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:08,902 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:08,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:08,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:08,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:08,984 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:08,984 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:08,985 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/min_max.i [2019-09-20 13:29:09,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b1d8849/9a79f505ccb64a3683ebbeae78575cc4/FLAG1ebc99613 [2019-09-20 13:29:09,602 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:09,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/min_max.i [2019-09-20 13:29:09,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b1d8849/9a79f505ccb64a3683ebbeae78575cc4/FLAG1ebc99613 [2019-09-20 13:29:09,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b1d8849/9a79f505ccb64a3683ebbeae78575cc4 [2019-09-20 13:29:09,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:09,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:09,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:09,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:09,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:09,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:09" (1/1) ... [2019-09-20 13:29:09,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cde93ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:09, skipping insertion in model container [2019-09-20 13:29:09,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:09" (1/1) ... [2019-09-20 13:29:09,918 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:09,974 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:10,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:10,418 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:10,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:10,534 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:10,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10 WrapperNode [2019-09-20 13:29:10,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:10,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:10,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:10,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:10,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (1/1) ... [2019-09-20 13:29:10,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (1/1) ... [2019-09-20 13:29:10,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (1/1) ... [2019-09-20 13:29:10,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (1/1) ... [2019-09-20 13:29:10,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (1/1) ... [2019-09-20 13:29:10,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (1/1) ... [2019-09-20 13:29:10,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (1/1) ... [2019-09-20 13:29:10,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:10,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:10,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:10,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:10,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (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 [2019-09-20 13:29:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:29:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:29:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:29:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:29:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:29:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:29:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:29:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:29:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:29:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:29:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:29:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:29:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:29:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:29:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:29:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:29:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:29:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:29:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:29:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:29:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:29:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:29:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:29:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:29:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:29:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:29:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:29:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:29:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:29:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:29:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:29:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:29:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:29:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:29:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:29:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:29:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:29:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:29:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:29:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:29:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:29:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:29:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:29:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:29:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:29:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:29:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:29:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:29:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:29:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:29:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:29:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:29:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:29:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:29:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:29:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:29:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:29:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:29:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:29:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:29:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:29:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:29:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:29:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:29:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:29:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:29:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:11,205 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:11,206 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 13:29:11,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:11 BoogieIcfgContainer [2019-09-20 13:29:11,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:11,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:11,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:11,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:11,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:09" (1/3) ... [2019-09-20 13:29:11,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302a8ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:11, skipping insertion in model container [2019-09-20 13:29:11,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:10" (2/3) ... [2019-09-20 13:29:11,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302a8ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:11, skipping insertion in model container [2019-09-20 13:29:11,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:11" (3/3) ... [2019-09-20 13:29:11,216 INFO L109 eAbstractionObserver]: Analyzing ICFG min_max.i [2019-09-20 13:29:11,227 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:11,236 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-20 13:29:11,253 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-20 13:29:11,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:11,283 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:11,283 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:11,284 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:11,285 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:11,285 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:11,285 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:11,285 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-09-20 13:29:11,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 13:29:11,309 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:11,309 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:11,311 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:11,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:11,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1192142104, now seen corresponding path program 1 times [2019-09-20 13:29:11,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:11,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:11,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:11,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:11,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:11,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:11,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:11,448 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:11,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:11,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:11,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:11,464 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-09-20 13:29:11,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:11,481 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-09-20 13:29:11,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:11,482 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-09-20 13:29:11,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:11,491 INFO L225 Difference]: With dead ends: 25 [2019-09-20 13:29:11,492 INFO L226 Difference]: Without dead ends: 21 [2019-09-20 13:29:11,494 INFO L636 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 [2019-09-20 13:29:11,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-20 13:29:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-20 13:29:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-20 13:29:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-09-20 13:29:11,529 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-09-20 13:29:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:11,530 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-09-20 13:29:11,530 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-09-20 13:29:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 13:29:11,531 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:11,531 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:11,531 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:11,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:11,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1107899532, now seen corresponding path program 1 times [2019-09-20 13:29:11,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:11,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:11,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:11,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:11,537 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:11,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:11,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:29:11,632 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:11,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:29:11,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:29:11,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:11,635 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 4 states. [2019-09-20 13:29:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:11,685 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-09-20 13:29:11,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:29:11,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-20 13:29:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:11,687 INFO L225 Difference]: With dead ends: 25 [2019-09-20 13:29:11,687 INFO L226 Difference]: Without dead ends: 23 [2019-09-20 13:29:11,688 INFO L636 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 [2019-09-20 13:29:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-09-20 13:29:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-09-20 13:29:11,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-20 13:29:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-09-20 13:29:11,693 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 12 [2019-09-20 13:29:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:11,693 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-09-20 13:29:11,694 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:29:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-09-20 13:29:11,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 13:29:11,695 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:11,695 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:11,695 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:11,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:11,696 INFO L82 PathProgramCache]: Analyzing trace with hash 897845277, now seen corresponding path program 1 times [2019-09-20 13:29:11,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:11,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:11,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:11,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:11,701 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:11,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:11,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:11,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:11,923 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:11,923 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:11,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:11,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:11,925 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-09-20 13:29:12,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:12,094 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-09-20 13:29:12,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:12,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-09-20 13:29:12,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:12,096 INFO L225 Difference]: With dead ends: 30 [2019-09-20 13:29:12,096 INFO L226 Difference]: Without dead ends: 30 [2019-09-20 13:29:12,097 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:12,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-09-20 13:29:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2019-09-20 13:29:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-20 13:29:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-09-20 13:29:12,101 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2019-09-20 13:29:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:12,101 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-09-20 13:29:12,102 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-09-20 13:29:12,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-20 13:29:12,102 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:12,103 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:12,103 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:12,103 INFO L82 PathProgramCache]: Analyzing trace with hash -458989665, now seen corresponding path program 1 times [2019-09-20 13:29:12,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:12,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:12,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:12,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:12,108 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:12,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:12,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:12,328 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:12,328 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:12,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:12,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:12,329 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 8 states. [2019-09-20 13:29:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:12,522 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2019-09-20 13:29:12,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:12,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-09-20 13:29:12,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:12,526 INFO L225 Difference]: With dead ends: 42 [2019-09-20 13:29:12,526 INFO L226 Difference]: Without dead ends: 42 [2019-09-20 13:29:12,527 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:29:12,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-20 13:29:12,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2019-09-20 13:29:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-20 13:29:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-09-20 13:29:12,533 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 19 [2019-09-20 13:29:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:12,534 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-09-20 13:29:12,534 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:12,534 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-09-20 13:29:12,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-20 13:29:12,535 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:12,535 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:12,535 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:12,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:12,536 INFO L82 PathProgramCache]: Analyzing trace with hash 221068705, now seen corresponding path program 1 times [2019-09-20 13:29:12,536 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:12,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:12,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:12,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:12,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:12,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:12,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:29:12,765 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:12,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:29:12,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:29:12,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:12,767 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 9 states. [2019-09-20 13:29:12,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:12,994 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-09-20 13:29:12,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:29:12,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-09-20 13:29:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:12,998 INFO L225 Difference]: With dead ends: 35 [2019-09-20 13:29:12,998 INFO L226 Difference]: Without dead ends: 35 [2019-09-20 13:29:12,998 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2019-09-20 13:29:12,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-20 13:29:13,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2019-09-20 13:29:13,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-20 13:29:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-09-20 13:29:13,005 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 19 [2019-09-20 13:29:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:13,006 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-09-20 13:29:13,006 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:29:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-09-20 13:29:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-20 13:29:13,007 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:13,007 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:13,007 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:13,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1418643305, now seen corresponding path program 1 times [2019-09-20 13:29:13,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:13,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:13,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:13,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:13,013 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:13,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:13,160 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:13,161 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2019-09-20 13:29:13,164 INFO L207 CegarAbsIntRunner]: [2], [3], [4], [9], [12], [14], [17], [21], [24], [31], [40], [43], [44], [47], [49], [56], [58], [68], [69], [70] [2019-09-20 13:29:13,207 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:13,208 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:13,311 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:13,313 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Performed 29 root evaluator evaluations with a maximum evaluation depth of 7. Performed 29 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Never found a fixpoint. Largest state had 36 variables. [2019-09-20 13:29:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:13,321 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:13,393 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 69.9% of their original sizes. [2019-09-20 13:29:13,393 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:13,413 INFO L420 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-09-20 13:29:13,414 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:13,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:13,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2019-09-20 13:29:13,415 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:13,415 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:13,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:13,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:13,416 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 6 states. [2019-09-20 13:29:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:13,426 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-09-20 13:29:13,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:29:13,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-09-20 13:29:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:13,427 INFO L225 Difference]: With dead ends: 8 [2019-09-20 13:29:13,427 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:13,428 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:13,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:13,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-09-20 13:29:13,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:13,429 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:13,429 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:13,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:13,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:13 BoogieIcfgContainer [2019-09-20 13:29:13,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:13,438 INFO L168 Benchmark]: Toolchain (without parser) took 3537.02 ms. Allocated memory was 132.1 MB in the beginning and 221.8 MB in the end (delta: 89.7 MB). Free memory was 85.1 MB in the beginning and 67.5 MB in the end (delta: 17.6 MB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,439 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.62 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 84.9 MB in the beginning and 163.9 MB in the end (delta: -79.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,441 INFO L168 Benchmark]: Boogie Preprocessor took 112.20 ms. Allocated memory is still 199.8 MB. Free memory was 163.9 MB in the beginning and 161.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,442 INFO L168 Benchmark]: RCFGBuilder took 558.24 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 121.0 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,443 INFO L168 Benchmark]: TraceAbstraction took 2226.84 ms. Allocated memory was 199.8 MB in the beginning and 221.8 MB in the end (delta: 22.0 MB). Free memory was 121.0 MB in the beginning and 67.5 MB in the end (delta: 53.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,448 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 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.62 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 84.9 MB in the beginning and 163.9 MB in the end (delta: -79.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.20 ms. Allocated memory is still 199.8 MB. Free memory was 163.9 MB in the beginning and 161.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 558.24 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 121.0 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2226.84 ms. Allocated memory was 199.8 MB in the beginning and 221.8 MB in the end (delta: 22.0 MB). Free memory was 121.0 MB in the beginning and 67.5 MB in the end (delta: 53.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 580]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 2 error locations. SAFE Result, 2.1s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 91 SDslu, 232 SDs, 0 SdLazy, 214 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=4, 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, 0.9044973544973546 AbsIntWeakeningRatio, 1.0 AbsIntAvgWeakeningVarsNumRemoved, 1.8571428571428572 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 10798 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 7/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...