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-manipulation/bubble_sort_linux-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 22:18:41,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 22:18:41,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 22:18:41,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 22:18:41,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 22:18:41,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 22:18:41,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 22:18:41,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 22:18:41,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 22:18:41,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 22:18:41,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 22:18:41,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 22:18:41,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 22:18:41,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 22:18:41,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 22:18:41,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 22:18:41,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 22:18:41,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 22:18:41,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 22:18:41,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 22:18:41,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 22:18:41,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 22:18:41,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 22:18:41,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 22:18:41,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 22:18:41,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 22:18:41,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 22:18:41,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 22:18:41,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 22:18:41,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 22:18:41,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 22:18:41,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 22:18:41,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 22:18:41,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 22:18:41,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 22:18:41,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 22:18:41,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 22:18:41,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 22:18:41,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 22:18:41,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 22:18:41,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 22:18:41,747 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 [2019-10-02 22:18:41,766 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 22:18:41,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 22:18:41,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 22:18:41,767 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 22:18:41,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 22:18:41,768 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 22:18:41,768 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 22:18:41,769 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 22:18:41,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 22:18:41,769 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 22:18:41,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 22:18:41,770 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 22:18:41,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 22:18:41,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 22:18:41,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 22:18:41,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 22:18:41,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 22:18:41,771 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 22:18:41,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 22:18:41,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 22:18:41,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 22:18:41,772 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 22:18:41,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 22:18:41,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 22:18:41,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 22:18:41,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 22:18:41,773 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 22:18:41,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 22:18:41,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 22:18:41,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 22:18:41,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 22:18:41,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 22:18:41,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 22:18:41,835 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 22:18:41,835 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 22:18:41,836 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2019-10-02 22:18:41,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43481e0fd/48aaec2a5a934d57934d28a10a37631d/FLAGa29a30598 [2019-10-02 22:18:42,477 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 22:18:42,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2019-10-02 22:18:42,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43481e0fd/48aaec2a5a934d57934d28a10a37631d/FLAGa29a30598 [2019-10-02 22:18:42,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43481e0fd/48aaec2a5a934d57934d28a10a37631d [2019-10-02 22:18:42,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 22:18:42,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 22:18:42,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 22:18:42,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 22:18:42,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 22:18:42,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:42" (1/1) ... [2019-10-02 22:18:42,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6561a44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:42, skipping insertion in model container [2019-10-02 22:18:42,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:42" (1/1) ... [2019-10-02 22:18:42,786 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 22:18:42,865 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 22:18:43,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:18:43,498 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 22:18:43,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:18:43,743 INFO L192 MainTranslator]: Completed translation [2019-10-02 22:18:43,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43 WrapperNode [2019-10-02 22:18:43,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 22:18:43,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 22:18:43,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 22:18:43,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 22:18:43,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (1/1) ... [2019-10-02 22:18:43,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (1/1) ... [2019-10-02 22:18:43,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (1/1) ... [2019-10-02 22:18:43,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (1/1) ... [2019-10-02 22:18:43,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (1/1) ... [2019-10-02 22:18:43,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (1/1) ... [2019-10-02 22:18:43,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (1/1) ... [2019-10-02 22:18:43,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 22:18:43,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 22:18:43,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 22:18:43,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 22:18:43,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (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 [2019-10-02 22:18:43,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 22:18:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 22:18:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-02 22:18:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-02 22:18:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-10-02 22:18:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2019-10-02 22:18:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-02 22:18:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-10-02 22:18:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-02 22:18:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2019-10-02 22:18:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2019-10-02 22:18:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2019-10-02 22:18:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2019-10-02 22:18:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2019-10-02 22:18:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2019-10-02 22:18:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2019-10-02 22:18:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 22:18:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 22:18:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-02 22:18:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-02 22:18:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-02 22:18:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-02 22:18:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-02 22:18:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-02 22:18:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-02 22:18:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-02 22:18:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-02 22:18:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-02 22:18:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-02 22:18:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-02 22:18:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-02 22:18:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-02 22:18:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-02 22:18:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-02 22:18:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-02 22:18:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-02 22:18:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-02 22:18:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-02 22:18:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-02 22:18:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-02 22:18:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-02 22:18:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-02 22:18:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-02 22:18:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-02 22:18:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-02 22:18:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-02 22:18:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-02 22:18:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-02 22:18:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-02 22:18:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-02 22:18:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-02 22:18:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-02 22:18:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-02 22:18:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-02 22:18:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-02 22:18:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-02 22:18:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-02 22:18:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-02 22:18:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-02 22:18:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-02 22:18:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-02 22:18:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-02 22:18:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-02 22:18:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 22:18:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 22:18:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-02 22:18:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 22:18:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-02 22:18:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-02 22:18:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-02 22:18:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-02 22:18:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-02 22:18:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-02 22:18:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-02 22:18:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 22:18:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-02 22:18:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-02 22:18:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-02 22:18:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-02 22:18:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-02 22:18:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-02 22:18:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-02 22:18:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-02 22:18:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-02 22:18:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-02 22:18:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-02 22:18:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-02 22:18:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-02 22:18:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-02 22:18:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-02 22:18:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-02 22:18:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-02 22:18:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-02 22:18:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-02 22:18:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-02 22:18:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-02 22:18:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-02 22:18:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-02 22:18:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-02 22:18:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-02 22:18:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-02 22:18:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-02 22:18:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-02 22:18:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-02 22:18:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-02 22:18:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-02 22:18:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-02 22:18:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-02 22:18:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-02 22:18:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-02 22:18:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-02 22:18:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-02 22:18:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-02 22:18:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-10-02 22:18:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-10-02 22:18:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-10-02 22:18:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-10-02 22:18:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-10-02 22:18:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-10-02 22:18:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-10-02 22:18:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-10-02 22:18:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-10-02 22:18:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-10-02 22:18:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-10-02 22:18:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-10-02 22:18:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-10-02 22:18:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-10-02 22:18:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-10-02 22:18:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-10-02 22:18:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-10-02 22:18:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-10-02 22:18:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-10-02 22:18:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-10-02 22:18:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-10-02 22:18:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-10-02 22:18:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-10-02 22:18:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-10-02 22:18:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-10-02 22:18:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-10-02 22:18:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-10-02 22:18:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-10-02 22:18:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-02 22:18:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-10-02 22:18:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-10-02 22:18:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-10-02 22:18:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-10-02 22:18:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-10-02 22:18:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-10-02 22:18:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-10-02 22:18:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-10-02 22:18:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-10-02 22:18:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 22:18:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-02 22:18:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-10-02 22:18:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-10-02 22:18:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-10-02 22:18:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-02 22:18:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-02 22:18:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-10-02 22:18:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-10-02 22:18:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-10-02 22:18:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-10-02 22:18:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-02 22:18:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-10-02 22:18:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-10-02 22:18:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-10-02 22:18:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-10-02 22:18:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-02 22:18:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-10-02 22:18:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-10-02 22:18:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-10-02 22:18:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-10-02 22:18:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-10-02 22:18:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-10-02 22:18:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-10-02 22:18:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-10-02 22:18:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-10-02 22:18:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-10-02 22:18:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-10-02 22:18:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-10-02 22:18:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-10-02 22:18:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2019-10-02 22:18:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-10-02 22:18:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-10-02 22:18:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-10-02 22:18:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-10-02 22:18:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-10-02 22:18:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-10-02 22:18:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-10-02 22:18:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-10-02 22:18:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-10-02 22:18:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-10-02 22:18:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-10-02 22:18:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-10-02 22:18:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-10-02 22:18:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-10-02 22:18:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-10-02 22:18:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-10-02 22:18:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-10-02 22:18:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-10-02 22:18:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 22:18:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-10-02 22:18:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2019-10-02 22:18:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 22:18:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-02 22:18:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 22:18:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-10-02 22:18:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-02 22:18:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2019-10-02 22:18:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 22:18:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2019-10-02 22:18:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2019-10-02 22:18:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 22:18:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 22:18:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 22:18:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 22:18:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 22:18:44,910 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 22:18:44,910 INFO L283 CfgBuilder]: Removed 41 assume(true) statements. [2019-10-02 22:18:44,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:44 BoogieIcfgContainer [2019-10-02 22:18:44,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 22:18:44,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 22:18:44,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 22:18:44,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 22:18:44,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:18:42" (1/3) ... [2019-10-02 22:18:44,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db91c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:44, skipping insertion in model container [2019-10-02 22:18:44,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:43" (2/3) ... [2019-10-02 22:18:44,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db91c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:44, skipping insertion in model container [2019-10-02 22:18:44,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:44" (3/3) ... [2019-10-02 22:18:44,920 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2019-10-02 22:18:44,930 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 22:18:44,940 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 22:18:44,957 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 22:18:44,983 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 22:18:44,983 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 22:18:44,983 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 22:18:44,983 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 22:18:44,984 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 22:18:44,984 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 22:18:44,984 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 22:18:44,984 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 22:18:45,013 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-10-02 22:18:45,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-02 22:18:45,033 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:45,035 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:45,037 INFO L418 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:45,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:45,043 INFO L82 PathProgramCache]: Analyzing trace with hash 354263945, now seen corresponding path program 1 times [2019-10-02 22:18:45,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:45,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:45,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:45,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:45,115 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:45,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:45,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 22:18:45,207 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:45,212 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:18:45,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:18:45,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:18:45,230 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2019-10-02 22:18:45,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:45,259 INFO L93 Difference]: Finished difference Result 123 states and 145 transitions. [2019-10-02 22:18:45,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:18:45,260 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-02 22:18:45,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:45,269 INFO L225 Difference]: With dead ends: 123 [2019-10-02 22:18:45,270 INFO L226 Difference]: Without dead ends: 112 [2019-10-02 22:18:45,271 INFO L640 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 [2019-10-02 22:18:45,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-10-02 22:18:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2019-10-02 22:18:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-10-02 22:18:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 133 transitions. [2019-10-02 22:18:45,318 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 133 transitions. Word has length 14 [2019-10-02 22:18:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:45,319 INFO L475 AbstractCegarLoop]: Abstraction has 112 states and 133 transitions. [2019-10-02 22:18:45,319 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:18:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 133 transitions. [2019-10-02 22:18:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-02 22:18:45,321 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:45,321 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:45,321 INFO L418 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:45,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:45,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1969852311, now seen corresponding path program 1 times [2019-10-02 22:18:45,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:45,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:45,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:45,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:45,328 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:45,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:45,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 22:18:45,519 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:45,521 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 22:18:45,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 22:18:45,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 22:18:45,522 INFO L87 Difference]: Start difference. First operand 112 states and 133 transitions. Second operand 5 states. [2019-10-02 22:18:45,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:45,678 INFO L93 Difference]: Finished difference Result 111 states and 131 transitions. [2019-10-02 22:18:45,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 22:18:45,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-02 22:18:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:45,680 INFO L225 Difference]: With dead ends: 111 [2019-10-02 22:18:45,680 INFO L226 Difference]: Without dead ends: 111 [2019-10-02 22:18:45,681 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-02 22:18:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-10-02 22:18:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-10-02 22:18:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-02 22:18:45,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2019-10-02 22:18:45,694 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 33 [2019-10-02 22:18:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:45,696 INFO L475 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2019-10-02 22:18:45,696 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 22:18:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2019-10-02 22:18:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-02 22:18:45,697 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:45,697 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:45,697 INFO L418 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:45,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:45,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1042118061, now seen corresponding path program 1 times [2019-10-02 22:18:45,698 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:45,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:45,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:45,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:45,707 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:46,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:46,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-02 22:18:46,007 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:46,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-02 22:18:46,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-02 22:18:46,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-02 22:18:46,008 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 13 states. [2019-10-02 22:18:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:47,176 INFO L93 Difference]: Finished difference Result 194 states and 236 transitions. [2019-10-02 22:18:47,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-02 22:18:47,179 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2019-10-02 22:18:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:47,189 INFO L225 Difference]: With dead ends: 194 [2019-10-02 22:18:47,189 INFO L226 Difference]: Without dead ends: 192 [2019-10-02 22:18:47,192 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2019-10-02 22:18:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-10-02 22:18:47,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 164. [2019-10-02 22:18:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-10-02 22:18:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 202 transitions. [2019-10-02 22:18:47,227 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 202 transitions. Word has length 35 [2019-10-02 22:18:47,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:47,230 INFO L475 AbstractCegarLoop]: Abstraction has 164 states and 202 transitions. [2019-10-02 22:18:47,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-02 22:18:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 202 transitions. [2019-10-02 22:18:47,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-02 22:18:47,232 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:47,232 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:47,232 INFO L418 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:47,233 INFO L82 PathProgramCache]: Analyzing trace with hash 738151313, now seen corresponding path program 1 times [2019-10-02 22:18:47,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:47,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:47,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:47,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:47,240 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:47,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:47,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-02 22:18:47,900 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:47,901 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-02 22:18:47,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-02 22:18:47,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-10-02 22:18:47,902 INFO L87 Difference]: Start difference. First operand 164 states and 202 transitions. Second operand 16 states. [2019-10-02 22:18:50,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:50,624 INFO L93 Difference]: Finished difference Result 275 states and 345 transitions. [2019-10-02 22:18:50,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 22:18:50,624 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2019-10-02 22:18:50,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:50,627 INFO L225 Difference]: With dead ends: 275 [2019-10-02 22:18:50,628 INFO L226 Difference]: Without dead ends: 275 [2019-10-02 22:18:50,628 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2019-10-02 22:18:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-10-02 22:18:50,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 239. [2019-10-02 22:18:50,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-02 22:18:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 302 transitions. [2019-10-02 22:18:50,668 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 302 transitions. Word has length 37 [2019-10-02 22:18:50,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:50,669 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 302 transitions. [2019-10-02 22:18:50,669 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-02 22:18:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 302 transitions. [2019-10-02 22:18:50,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-02 22:18:50,670 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:50,670 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:50,670 INFO L418 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:50,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:50,671 INFO L82 PathProgramCache]: Analyzing trace with hash 692003125, now seen corresponding path program 1 times [2019-10-02 22:18:50,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:50,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:50,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:50,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:50,680 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:51,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:51,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-02 22:18:51,231 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:51,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-02 22:18:51,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-02 22:18:51,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-10-02 22:18:51,232 INFO L87 Difference]: Start difference. First operand 239 states and 302 transitions. Second operand 16 states. [2019-10-02 22:18:53,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:53,973 INFO L93 Difference]: Finished difference Result 274 states and 343 transitions. [2019-10-02 22:18:53,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 22:18:53,974 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 39 [2019-10-02 22:18:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:53,977 INFO L225 Difference]: With dead ends: 274 [2019-10-02 22:18:53,977 INFO L226 Difference]: Without dead ends: 274 [2019-10-02 22:18:53,978 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=172, Invalid=758, Unknown=0, NotChecked=0, Total=930 [2019-10-02 22:18:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-10-02 22:18:53,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 239. [2019-10-02 22:18:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-02 22:18:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 301 transitions. [2019-10-02 22:18:53,994 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 301 transitions. Word has length 39 [2019-10-02 22:18:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:53,994 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 301 transitions. [2019-10-02 22:18:53,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-02 22:18:53,994 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 301 transitions. [2019-10-02 22:18:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-02 22:18:53,996 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:53,996 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:53,996 INFO L418 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:53,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:53,996 INFO L82 PathProgramCache]: Analyzing trace with hash -713895815, now seen corresponding path program 1 times [2019-10-02 22:18:53,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:54,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:54,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:54,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:54,001 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:54,535 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-10-02 22:18:54,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:54,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:54,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-02 22:18:54,853 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:54,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-02 22:18:54,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-02 22:18:54,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-02 22:18:54,855 INFO L87 Difference]: Start difference. First operand 239 states and 301 transitions. Second operand 19 states. [2019-10-02 22:18:55,584 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-10-02 22:18:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:58,486 INFO L93 Difference]: Finished difference Result 273 states and 341 transitions. [2019-10-02 22:18:58,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-02 22:18:58,490 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 41 [2019-10-02 22:18:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:58,492 INFO L225 Difference]: With dead ends: 273 [2019-10-02 22:18:58,492 INFO L226 Difference]: Without dead ends: 273 [2019-10-02 22:18:58,496 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=182, Invalid=1008, Unknown=0, NotChecked=0, Total=1190 [2019-10-02 22:18:58,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-10-02 22:18:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239. [2019-10-02 22:18:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-02 22:18:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 300 transitions. [2019-10-02 22:18:58,514 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 300 transitions. Word has length 41 [2019-10-02 22:18:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:58,514 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 300 transitions. [2019-10-02 22:18:58,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-02 22:18:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 300 transitions. [2019-10-02 22:18:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-02 22:18:58,516 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:58,516 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:58,516 INFO L418 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:58,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1132384349, now seen corresponding path program 1 times [2019-10-02 22:18:58,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:58,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:58,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:58,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:58,522 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:59,116 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-10-02 22:18:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:59,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:59,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-02 22:18:59,530 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:59,531 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-02 22:18:59,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-02 22:18:59,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2019-10-02 22:18:59,531 INFO L87 Difference]: Start difference. First operand 239 states and 300 transitions. Second operand 19 states. [2019-10-02 22:19:00,256 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-10-02 22:19:00,926 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-10-02 22:19:03,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:19:03,504 INFO L93 Difference]: Finished difference Result 272 states and 339 transitions. [2019-10-02 22:19:03,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-02 22:19:03,504 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 43 [2019-10-02 22:19:03,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:19:03,507 INFO L225 Difference]: With dead ends: 272 [2019-10-02 22:19:03,507 INFO L226 Difference]: Without dead ends: 272 [2019-10-02 22:19:03,508 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=177, Invalid=1013, Unknown=0, NotChecked=0, Total=1190 [2019-10-02 22:19:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-10-02 22:19:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 239. [2019-10-02 22:19:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-02 22:19:03,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 299 transitions. [2019-10-02 22:19:03,518 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 299 transitions. Word has length 43 [2019-10-02 22:19:03,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:19:03,519 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 299 transitions. [2019-10-02 22:19:03,519 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-02 22:19:03,519 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 299 transitions. [2019-10-02 22:19:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-02 22:19:03,520 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:19:03,520 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:19:03,520 INFO L418 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:19:03,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:19:03,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1592968204, now seen corresponding path program 1 times [2019-10-02 22:19:03,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:19:03,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:19:03,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:19:03,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:19:03,525 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:19:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:19:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:19:03,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:19:03,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-02 22:19:03,972 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:19:03,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-02 22:19:03,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-02 22:19:03,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2019-10-02 22:19:03,974 INFO L87 Difference]: Start difference. First operand 239 states and 299 transitions. Second operand 17 states. [2019-10-02 22:19:06,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:19:06,788 INFO L93 Difference]: Finished difference Result 271 states and 337 transitions. [2019-10-02 22:19:06,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-02 22:19:06,789 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2019-10-02 22:19:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:19:06,792 INFO L225 Difference]: With dead ends: 271 [2019-10-02 22:19:06,792 INFO L226 Difference]: Without dead ends: 271 [2019-10-02 22:19:06,793 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=222, Invalid=1110, Unknown=0, NotChecked=0, Total=1332 [2019-10-02 22:19:06,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-10-02 22:19:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 239. [2019-10-02 22:19:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-02 22:19:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 298 transitions. [2019-10-02 22:19:06,803 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 298 transitions. Word has length 45 [2019-10-02 22:19:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:19:06,803 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 298 transitions. [2019-10-02 22:19:06,804 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-02 22:19:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 298 transitions. [2019-10-02 22:19:06,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-02 22:19:06,805 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:19:06,805 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:19:06,805 INFO L418 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:19:06,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:19:06,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1826539152, now seen corresponding path program 1 times [2019-10-02 22:19:06,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:19:06,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:19:06,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:19:06,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:19:06,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:19:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:19:07,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:19:07,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:19:07,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-02 22:19:07,418 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:19:07,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-02 22:19:07,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-02 22:19:07,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2019-10-02 22:19:07,419 INFO L87 Difference]: Start difference. First operand 239 states and 298 transitions. Second operand 18 states. [2019-10-02 22:19:10,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:19:10,442 INFO L93 Difference]: Finished difference Result 265 states and 328 transitions. [2019-10-02 22:19:10,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 22:19:10,442 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 47 [2019-10-02 22:19:10,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:19:10,444 INFO L225 Difference]: With dead ends: 265 [2019-10-02 22:19:10,445 INFO L226 Difference]: Without dead ends: 265 [2019-10-02 22:19:10,445 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2019-10-02 22:19:10,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-10-02 22:19:10,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 239. [2019-10-02 22:19:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-02 22:19:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 297 transitions. [2019-10-02 22:19:10,455 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 297 transitions. Word has length 47 [2019-10-02 22:19:10,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:19:10,455 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 297 transitions. [2019-10-02 22:19:10,455 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-02 22:19:10,455 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 297 transitions. [2019-10-02 22:19:10,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-02 22:19:10,457 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:19:10,457 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:19:10,457 INFO L418 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:19:10,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:19:10,458 INFO L82 PathProgramCache]: Analyzing trace with hash -517473303, now seen corresponding path program 1 times [2019-10-02 22:19:10,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:19:10,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:19:10,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:19:10,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:19:10,461 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:19:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:19:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 22:19:11,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 22:19:11,373 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 22:19:11,374 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 58 with the following transitions: [2019-10-02 22:19:11,375 INFO L207 CegarAbsIntRunner]: [2], [7], [9], [14], [24], [52], [53], [54], [63], [74], [80], [91], [94], [441], [443], [445], [448], [450], [454], [457], [475], [476], [484], [486], [487], [496], [497], [508], [540], [541], [542], [543], [544], [552], [553], [558], [559], [560] [2019-10-02 22:19:11,407 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 22:19:11,407 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 22:19:11,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 22:19:11,459 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 13 root evaluator evaluations with a maximum evaluation depth of 0. Performed 13 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 20 variables. [2019-10-02 22:19:11,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:19:11,463 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 22:19:11,494 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-02 22:19:11,495 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 22:19:11,497 INFO L420 sIntCurrentIteration]: We unified 56 AI predicates to 56 [2019-10-02 22:19:11,497 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 22:19:11,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 22:19:11,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [24] total 24 [2019-10-02 22:19:11,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:19:11,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:19:11,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:19:11,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:19:11,499 INFO L87 Difference]: Start difference. First operand 239 states and 297 transitions. Second operand 2 states. [2019-10-02 22:19:11,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:19:11,500 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-02 22:19:11,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:19:11,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 57 [2019-10-02 22:19:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:19:11,500 INFO L225 Difference]: With dead ends: 2 [2019-10-02 22:19:11,501 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 22:19:11,501 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:19:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 22:19:11,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 22:19:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 22:19:11,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 22:19:11,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2019-10-02 22:19:11,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:19:11,502 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 22:19:11,502 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:19:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 22:19:11,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 22:19:11,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:19:11 BoogieIcfgContainer [2019-10-02 22:19:11,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 22:19:11,510 INFO L168 Benchmark]: Toolchain (without parser) took 28742.90 ms. Allocated memory was 138.4 MB in the beginning and 515.9 MB in the end (delta: 377.5 MB). Free memory was 84.1 MB in the beginning and 145.5 MB in the end (delta: -61.4 MB). Peak memory consumption was 316.1 MB. Max. memory is 7.1 GB. [2019-10-02 22:19:11,510 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 22:19:11,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 975.23 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 83.9 MB in the beginning and 136.4 MB in the end (delta: -52.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-10-02 22:19:11,512 INFO L168 Benchmark]: Boogie Preprocessor took 157.42 ms. Allocated memory is still 199.8 MB. Free memory was 136.4 MB in the beginning and 132.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-10-02 22:19:11,513 INFO L168 Benchmark]: RCFGBuilder took 1006.99 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 131.3 MB in the beginning and 155.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2019-10-02 22:19:11,514 INFO L168 Benchmark]: TraceAbstraction took 26594.35 ms. Allocated memory was 221.2 MB in the beginning and 515.9 MB in the end (delta: 294.6 MB). Free memory was 153.7 MB in the beginning and 145.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 302.9 MB. Max. memory is 7.1 GB. [2019-10-02 22:19:11,518 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 975.23 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 83.9 MB in the beginning and 136.4 MB in the end (delta: -52.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.42 ms. Allocated memory is still 199.8 MB. Free memory was 136.4 MB in the beginning and 132.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1006.99 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 131.3 MB in the beginning and 155.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26594.35 ms. Allocated memory was 221.2 MB in the beginning and 515.9 MB in the end (delta: 294.6 MB). Free memory was 153.7 MB in the beginning and 145.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 302.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 829]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 151 locations, 1 error locations. SAFE Result, 26.5s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 20.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 902 SDtfs, 2739 SDslu, 3258 SDs, 0 SdLazy, 10269 SolverSat, 987 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.3214285714285714 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 224 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 381 ConstructedInterpolants, 0 QuantifiedInterpolants, 456187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 3/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...