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-efa34d5 [2019-09-16 17:07:22,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:22,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:22,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:22,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:22,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:22,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:22,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:22,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:22,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:22,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:22,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:22,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:22,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:22,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:22,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:22,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:22,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:22,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:22,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:22,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:22,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:22,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:22,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:22,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:22,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:22,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:22,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:22,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:22,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:22,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:22,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:22,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:22,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:22,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:22,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:22,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:22,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:22,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:22,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:22,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:22,989 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 [2019-09-16 17:07:23,007 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:23,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:23,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:23,009 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:23,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:23,010 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:23,010 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:23,010 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:23,010 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:23,011 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:23,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:23,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:23,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:23,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:23,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:23,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:23,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:23,015 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:23,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:23,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:23,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:23,016 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:23,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:23,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:23,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:23,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:23,017 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:23,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:23,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:23,017 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:23,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:23,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:23,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:23,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:23,080 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:23,080 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/min_max.i [2019-09-16 17:07:23,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0a462a61/c7878653f7d24e92a8c3ca271c916f79/FLAGd7ea915d4 [2019-09-16 17:07:23,632 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:23,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/min_max.i [2019-09-16 17:07:23,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0a462a61/c7878653f7d24e92a8c3ca271c916f79/FLAGd7ea915d4 [2019-09-16 17:07:23,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0a462a61/c7878653f7d24e92a8c3ca271c916f79 [2019-09-16 17:07:23,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:23,981 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:23,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:23,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:23,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:23,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:23" (1/1) ... [2019-09-16 17:07:23,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f462b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:23, skipping insertion in model container [2019-09-16 17:07:23,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:23" (1/1) ... [2019-09-16 17:07:23,994 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:24,032 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:24,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:24,484 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:24,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:24,593 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:24,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24 WrapperNode [2019-09-16 17:07:24,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:24,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:24,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:24,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:24,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (1/1) ... [2019-09-16 17:07:24,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (1/1) ... [2019-09-16 17:07:24,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (1/1) ... [2019-09-16 17:07:24,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (1/1) ... [2019-09-16 17:07:24,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (1/1) ... [2019-09-16 17:07:24,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (1/1) ... [2019-09-16 17:07:24,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (1/1) ... [2019-09-16 17:07:24,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:24,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:24,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:24,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:24,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (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 [2019-09-16 17:07:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-16 17:07:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-16 17:07:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-16 17:07:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-16 17:07:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:25,199 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:25,200 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-16 17:07:25,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:25 BoogieIcfgContainer [2019-09-16 17:07:25,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:25,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:25,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:25,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:25,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:23" (1/3) ... [2019-09-16 17:07:25,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e9915e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:25, skipping insertion in model container [2019-09-16 17:07:25,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:24" (2/3) ... [2019-09-16 17:07:25,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e9915e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:25, skipping insertion in model container [2019-09-16 17:07:25,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:25" (3/3) ... [2019-09-16 17:07:25,212 INFO L109 eAbstractionObserver]: Analyzing ICFG min_max.i [2019-09-16 17:07:25,222 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:25,233 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-16 17:07:25,247 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-16 17:07:25,271 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:25,271 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:25,272 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:25,272 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:25,272 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:25,273 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:25,273 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:25,273 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-09-16 17:07:25,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-16 17:07:25,297 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:25,298 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:25,300 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:25,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:25,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1192142104, now seen corresponding path program 1 times [2019-09-16 17:07:25,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:25,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:25,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:25,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:25,380 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:25,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:25,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:25,456 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:25,460 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:25,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:25,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:25,473 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-09-16 17:07:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:25,488 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-09-16 17:07:25,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:25,489 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-09-16 17:07:25,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:25,497 INFO L225 Difference]: With dead ends: 25 [2019-09-16 17:07:25,497 INFO L226 Difference]: Without dead ends: 21 [2019-09-16 17:07:25,499 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 [2019-09-16 17:07:25,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-16 17:07:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-16 17:07:25,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-16 17:07:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-09-16 17:07:25,534 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-09-16 17:07:25,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:25,534 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-09-16 17:07:25,535 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:25,535 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-09-16 17:07:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 17:07:25,536 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:25,536 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:25,536 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:25,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:25,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1107899532, now seen corresponding path program 1 times [2019-09-16 17:07:25,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:25,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:25,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:25,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:25,543 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:25,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:25,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:07:25,656 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:25,658 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:07:25,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:07:25,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:07:25,659 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 4 states. [2019-09-16 17:07:25,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:25,709 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-09-16 17:07:25,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:07:25,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-16 17:07:25,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:25,711 INFO L225 Difference]: With dead ends: 25 [2019-09-16 17:07:25,712 INFO L226 Difference]: Without dead ends: 23 [2019-09-16 17:07:25,713 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 [2019-09-16 17:07:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-09-16 17:07:25,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-09-16 17:07:25,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-16 17:07:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-09-16 17:07:25,721 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 12 [2019-09-16 17:07:25,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:25,722 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-09-16 17:07:25,723 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:07:25,723 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-09-16 17:07:25,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-16 17:07:25,724 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:25,724 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:25,724 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:25,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:25,725 INFO L82 PathProgramCache]: Analyzing trace with hash 897845277, now seen corresponding path program 1 times [2019-09-16 17:07:25,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:25,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:25,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:25,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:25,736 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:25,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:25,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:25,984 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:25,984 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:25,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:25,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:25,985 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-09-16 17:07:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:26,144 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-09-16 17:07:26,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:07:26,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-09-16 17:07:26,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:26,146 INFO L225 Difference]: With dead ends: 30 [2019-09-16 17:07:26,146 INFO L226 Difference]: Without dead ends: 30 [2019-09-16 17:07:26,147 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 [2019-09-16 17:07:26,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-09-16 17:07:26,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2019-09-16 17:07:26,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-16 17:07:26,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-09-16 17:07:26,151 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2019-09-16 17:07:26,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:26,152 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-09-16 17:07:26,152 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:26,152 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-09-16 17:07:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-16 17:07:26,153 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:26,153 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:26,153 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:26,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:26,154 INFO L82 PathProgramCache]: Analyzing trace with hash -458989665, now seen corresponding path program 1 times [2019-09-16 17:07:26,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:26,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:26,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:26,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:26,158 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:26,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:26,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:07:26,340 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:26,340 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:07:26,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:07:26,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:07:26,341 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 8 states. [2019-09-16 17:07:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:26,539 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2019-09-16 17:07:26,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:26,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-09-16 17:07:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:26,540 INFO L225 Difference]: With dead ends: 42 [2019-09-16 17:07:26,540 INFO L226 Difference]: Without dead ends: 42 [2019-09-16 17:07:26,541 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 [2019-09-16 17:07:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-16 17:07:26,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2019-09-16 17:07:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-16 17:07:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-09-16 17:07:26,546 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 19 [2019-09-16 17:07:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:26,546 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-09-16 17:07:26,547 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:07:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-09-16 17:07:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-16 17:07:26,548 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:26,548 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:26,548 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:26,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:26,549 INFO L82 PathProgramCache]: Analyzing trace with hash 221068705, now seen corresponding path program 1 times [2019-09-16 17:07:26,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:26,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:26,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:26,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:26,553 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:26,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:26,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:07:26,751 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:26,752 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:07:26,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:07:26,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:07:26,753 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 9 states. [2019-09-16 17:07:26,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:26,966 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-09-16 17:07:26,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:07:26,966 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-09-16 17:07:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:26,967 INFO L225 Difference]: With dead ends: 35 [2019-09-16 17:07:26,968 INFO L226 Difference]: Without dead ends: 35 [2019-09-16 17:07:26,968 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 [2019-09-16 17:07:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-16 17:07:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2019-09-16 17:07:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-16 17:07:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-09-16 17:07:26,972 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 19 [2019-09-16 17:07:26,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:26,973 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-09-16 17:07:26,973 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:07:26,973 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-09-16 17:07:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-16 17:07:26,974 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:26,974 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] [2019-09-16 17:07:26,974 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:26,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:26,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1418643305, now seen corresponding path program 1 times [2019-09-16 17:07:26,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:26,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:26,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:26,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:26,979 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:27,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:07:27,074 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:07:27,075 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2019-09-16 17:07:27,077 INFO L207 CegarAbsIntRunner]: [2], [3], [4], [9], [12], [14], [17], [21], [24], [31], [40], [43], [44], [47], [49], [56], [58], [68], [69], [70] [2019-09-16 17:07:27,130 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:07:27,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:07:27,244 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:07:27,246 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. [2019-09-16 17:07:27,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:27,251 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:07:27,312 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 69.9% of their original sizes. [2019-09-16 17:07:27,312 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:07:27,339 INFO L420 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-09-16 17:07:27,339 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:07:27,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:07:27,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2019-09-16 17:07:27,340 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:27,341 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:27,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:27,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:27,343 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 6 states. [2019-09-16 17:07:27,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:27,361 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-09-16 17:07:27,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:07:27,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-09-16 17:07:27,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:27,362 INFO L225 Difference]: With dead ends: 8 [2019-09-16 17:07:27,362 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:27,363 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 [2019-09-16 17:07:27,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:27,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-09-16 17:07:27,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:27,364 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:27,365 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:27,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:27,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:27 BoogieIcfgContainer [2019-09-16 17:07:27,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:27,377 INFO L168 Benchmark]: Toolchain (without parser) took 3393.68 ms. Allocated memory was 130.0 MB in the beginning and 216.5 MB in the end (delta: 86.5 MB). Free memory was 84.6 MB in the beginning and 67.3 MB in the end (delta: 17.3 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:27,378 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:27,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.02 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 84.4 MB in the beginning and 161.6 MB in the end (delta: -77.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:27,382 INFO L168 Benchmark]: Boogie Preprocessor took 59.13 ms. Allocated memory is still 197.7 MB. Free memory was 161.6 MB in the beginning and 159.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:27,383 INFO L168 Benchmark]: RCFGBuilder took 548.18 ms. Allocated memory is still 197.7 MB. Free memory was 159.0 MB in the beginning and 120.0 MB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:27,384 INFO L168 Benchmark]: TraceAbstraction took 2170.44 ms. Allocated memory was 197.7 MB in the beginning and 216.5 MB in the end (delta: 18.9 MB). Free memory was 119.4 MB in the beginning and 67.3 MB in the end (delta: 52.1 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:27,390 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 612.02 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 84.4 MB in the beginning and 161.6 MB in the end (delta: -77.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.13 ms. Allocated memory is still 197.7 MB. Free memory was 161.6 MB in the beginning and 159.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 548.18 ms. Allocated memory is still 197.7 MB. Free memory was 159.0 MB in the beginning and 120.0 MB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2170.44 ms. Allocated memory was 197.7 MB in the beginning and 216.5 MB in the end (delta: 18.9 MB). Free memory was 119.4 MB in the beginning and 67.3 MB in the end (delta: 52.1 MB). Peak memory consumption was 71.0 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, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 91 SDslu, 232 SDs, 0 SdLazy, 214 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s 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...