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/forester-heap/sll-buckets-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 22:17:41,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 22:17:41,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 22:17:41,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 22:17:41,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 22:17:41,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 22:17:41,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 22:17:41,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 22:17:41,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 22:17:41,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 22:17:41,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 22:17:41,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 22:17:41,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 22:17:41,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 22:17:41,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 22:17:41,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 22:17:41,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 22:17:41,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 22:17:41,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 22:17:41,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 22:17:41,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 22:17:41,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 22:17:41,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 22:17:41,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 22:17:41,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 22:17:41,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 22:17:41,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 22:17:41,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 22:17:41,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 22:17:41,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 22:17:41,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 22:17:41,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 22:17:41,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 22:17:41,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 22:17:41,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 22:17:41,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 22:17:41,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 22:17:41,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 22:17:41,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 22:17:41,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 22:17:41,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 22:17:41,974 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 22:17:41,998 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 22:17:41,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 22:17:41,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 22:17:41,999 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 22:17:41,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 22:17:42,000 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 22:17:42,000 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 22:17:42,000 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 22:17:42,000 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 22:17:42,001 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 22:17:42,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 22:17:42,002 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 22:17:42,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 22:17:42,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 22:17:42,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 22:17:42,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 22:17:42,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 22:17:42,004 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 22:17:42,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 22:17:42,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 22:17:42,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 22:17:42,005 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 22:17:42,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 22:17:42,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 22:17:42,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 22:17:42,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 22:17:42,006 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 22:17:42,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 22:17:42,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 22:17:42,006 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 22:17:42,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 22:17:42,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 22:17:42,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 22:17:42,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 22:17:42,061 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 22:17:42,062 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-10-02 22:17:42,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc3791687/2f9c7f0a87c74b0badd5d165e30ffcdf/FLAGfaacb9506 [2019-10-02 22:17:42,645 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 22:17:42,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-10-02 22:17:42,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc3791687/2f9c7f0a87c74b0badd5d165e30ffcdf/FLAGfaacb9506 [2019-10-02 22:17:42,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc3791687/2f9c7f0a87c74b0badd5d165e30ffcdf [2019-10-02 22:17:42,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 22:17:42,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 22:17:42,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 22:17:42,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 22:17:42,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 22:17:42,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:42" (1/1) ... [2019-10-02 22:17:42,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:42, skipping insertion in model container [2019-10-02 22:17:42,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:42" (1/1) ... [2019-10-02 22:17:42,974 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 22:17:43,029 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 22:17:43,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:17:43,474 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 22:17:43,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:17:43,603 INFO L192 MainTranslator]: Completed translation [2019-10-02 22:17:43,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43 WrapperNode [2019-10-02 22:17:43,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 22:17:43,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 22:17:43,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 22:17:43,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 22:17:43,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (1/1) ... [2019-10-02 22:17:43,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (1/1) ... [2019-10-02 22:17:43,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (1/1) ... [2019-10-02 22:17:43,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (1/1) ... [2019-10-02 22:17:43,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (1/1) ... [2019-10-02 22:17:43,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (1/1) ... [2019-10-02 22:17:43,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (1/1) ... [2019-10-02 22:17:43,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 22:17:43,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 22:17:43,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 22:17:43,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 22:17:43,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (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 22:17:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 22:17:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 22:17:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 22:17:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-02 22:17:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-02 22:17:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-02 22:17:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-02 22:17:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-02 22:17:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-02 22:17:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-02 22:17:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-02 22:17:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-02 22:17:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-02 22:17:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-02 22:17:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-02 22:17:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-02 22:17:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-02 22:17:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-02 22:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-02 22:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-02 22:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-02 22:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-02 22:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-02 22:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-02 22:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-02 22:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-02 22:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-02 22:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-02 22:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-02 22:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-02 22:17:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-02 22:17:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-02 22:17:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-02 22:17:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-02 22:17:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-02 22:17:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-02 22:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-02 22:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-02 22:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-02 22:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-02 22:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-02 22:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-02 22:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-02 22:17:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-02 22:17:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-02 22:17:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-02 22:17:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-02 22:17:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-02 22:17:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-02 22:17:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-02 22:17:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-02 22:17:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-02 22:17:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-02 22:17:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 22:17:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 22:17:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-02 22:17:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 22:17:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-02 22:17:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-02 22:17:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-02 22:17:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-02 22:17:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-02 22:17:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-02 22:17:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-02 22:17:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-02 22:17:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-02 22:17:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 22:17:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-02 22:17:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-02 22:17:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-02 22:17:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-02 22:17:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-02 22:17:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-02 22:17:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-02 22:17:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-02 22:17:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-02 22:17:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-02 22:17:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-02 22:17:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-02 22:17:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-02 22:17:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-02 22:17:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-02 22:17:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-02 22:17:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-02 22:17:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-02 22:17:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-02 22:17:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-02 22:17:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-02 22:17:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-02 22:17:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-02 22:17:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-02 22:17:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-02 22:17:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-02 22:17:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-02 22:17:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-02 22:17:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-02 22:17:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-02 22:17:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-02 22:17:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-02 22:17:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-02 22:17:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-02 22:17:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-02 22:17:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-02 22:17:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-02 22:17:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-02 22:17:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-02 22:17:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 22:17:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 22:17:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 22:17:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 22:17:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 22:17:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 22:17:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 22:17:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 22:17:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 22:17:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 22:17:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 22:17:44,438 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 22:17:44,438 INFO L283 CfgBuilder]: Removed 15 assume(true) statements. [2019-10-02 22:17:44,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:44 BoogieIcfgContainer [2019-10-02 22:17:44,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 22:17:44,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 22:17:44,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 22:17:44,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 22:17:44,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:17:42" (1/3) ... [2019-10-02 22:17:44,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7317c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:44, skipping insertion in model container [2019-10-02 22:17:44,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:43" (2/3) ... [2019-10-02 22:17:44,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7317c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:44, skipping insertion in model container [2019-10-02 22:17:44,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:44" (3/3) ... [2019-10-02 22:17:44,452 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2019-10-02 22:17:44,462 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 22:17:44,475 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-10-02 22:17:44,493 INFO L252 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-10-02 22:17:44,528 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 22:17:44,528 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 22:17:44,529 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 22:17:44,529 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 22:17:44,530 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 22:17:44,530 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 22:17:44,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 22:17:44,534 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 22:17:44,556 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-10-02 22:17:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-02 22:17:44,578 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:44,580 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:44,584 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:44,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:44,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1374691092, now seen corresponding path program 1 times [2019-10-02 22:17:44,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:44,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:44,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:44,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:44,673 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:44,901 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 22:17:44,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:44,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 22:17:44,905 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:44,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 22:17:44,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 22:17:44,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 22:17:44,928 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2019-10-02 22:17:45,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:45,044 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2019-10-02 22:17:45,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 22:17:45,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-02 22:17:45,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:45,057 INFO L225 Difference]: With dead ends: 67 [2019-10-02 22:17:45,057 INFO L226 Difference]: Without dead ends: 62 [2019-10-02 22:17:45,059 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 22:17:45,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-10-02 22:17:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 40. [2019-10-02 22:17:45,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-02 22:17:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-10-02 22:17:45,102 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 12 [2019-10-02 22:17:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:45,102 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-10-02 22:17:45,102 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 22:17:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-10-02 22:17:45,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-02 22:17:45,123 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:45,123 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:45,123 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:45,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:45,124 INFO L82 PathProgramCache]: Analyzing trace with hash 370514649, now seen corresponding path program 1 times [2019-10-02 22:17:45,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:45,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:45,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,129 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:45,194 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 22:17:45,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:45,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 22:17:45,195 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:45,197 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 22:17:45,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 22:17:45,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 22:17:45,198 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 3 states. [2019-10-02 22:17:45,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:45,246 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2019-10-02 22:17:45,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 22:17:45,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-02 22:17:45,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:45,247 INFO L225 Difference]: With dead ends: 42 [2019-10-02 22:17:45,248 INFO L226 Difference]: Without dead ends: 42 [2019-10-02 22:17:45,249 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 22:17:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-02 22:17:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2019-10-02 22:17:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-02 22:17:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2019-10-02 22:17:45,254 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 13 [2019-10-02 22:17:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:45,254 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2019-10-02 22:17:45,255 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 22:17:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2019-10-02 22:17:45,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-02 22:17:45,255 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:45,256 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:45,256 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:45,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:45,256 INFO L82 PathProgramCache]: Analyzing trace with hash 334257712, now seen corresponding path program 1 times [2019-10-02 22:17:45,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:45,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:45,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,261 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:45,336 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 22:17:45,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:45,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 22:17:45,337 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:45,337 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 22:17:45,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 22:17:45,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 22:17:45,338 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 3 states. [2019-10-02 22:17:45,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:45,430 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-10-02 22:17:45,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 22:17:45,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-02 22:17:45,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:45,431 INFO L225 Difference]: With dead ends: 40 [2019-10-02 22:17:45,431 INFO L226 Difference]: Without dead ends: 40 [2019-10-02 22:17:45,432 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 22:17:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-02 22:17:45,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2019-10-02 22:17:45,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-02 22:17:45,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-10-02 22:17:45,438 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 13 [2019-10-02 22:17:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:45,439 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-10-02 22:17:45,439 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 22:17:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-10-02 22:17:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-02 22:17:45,441 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:45,441 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:45,442 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:45,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:45,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1398911794, now seen corresponding path program 1 times [2019-10-02 22:17:45,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:45,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:45,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,450 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:45,608 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 22:17:45,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:45,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 22:17:45,609 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:45,609 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 22:17:45,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 22:17:45,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 22:17:45,610 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 5 states. [2019-10-02 22:17:45,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:45,795 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2019-10-02 22:17:45,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 22:17:45,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-02 22:17:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:45,798 INFO L225 Difference]: With dead ends: 46 [2019-10-02 22:17:45,798 INFO L226 Difference]: Without dead ends: 46 [2019-10-02 22:17:45,799 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-02 22:17:45,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-02 22:17:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2019-10-02 22:17:45,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-02 22:17:45,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2019-10-02 22:17:45,804 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 14 [2019-10-02 22:17:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:45,805 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2019-10-02 22:17:45,805 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 22:17:45,805 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2019-10-02 22:17:45,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-02 22:17:45,806 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:45,806 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:45,806 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:45,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1155909333, now seen corresponding path program 1 times [2019-10-02 22:17:45,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:45,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:45,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:45,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:46,165 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 22:17:46,165 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 22:17:46,166 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2019-10-02 22:17:46,168 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [113], [122], [129], [131], [135], [138], [139], [163], [191], [196], [197], [198] [2019-10-02 22:17:46,212 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 22:17:46,213 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 22:17:46,317 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 22:17:46,319 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 43 variables. [2019-10-02 22:17:46,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:46,324 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 22:17:46,373 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 22:17:46,373 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 22:17:46,375 INFO L420 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-10-02 22:17:46,375 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 22:17:46,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 22:17:46,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-02 22:17:46,376 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:46,377 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:17:46,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:17:46,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:17:46,378 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 2 states. [2019-10-02 22:17:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:46,380 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 22:17:46,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:17:46,380 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-02 22:17:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:46,381 INFO L225 Difference]: With dead ends: 6 [2019-10-02 22:17:46,381 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 22:17:46,381 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 22:17:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 22:17:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 22:17:46,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 22:17:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 22:17:46,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-02 22:17:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:46,383 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 22:17:46,383 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:17:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 22:17:46,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 22:17:46,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:17:46 BoogieIcfgContainer [2019-10-02 22:17:46,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 22:17:46,391 INFO L168 Benchmark]: Toolchain (without parser) took 3432.38 ms. Allocated memory was 131.1 MB in the beginning and 221.2 MB in the end (delta: 90.2 MB). Free memory was 83.9 MB in the beginning and 76.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 97.6 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:46,392 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 131.1 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 22:17:46,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.08 ms. Allocated memory was 131.1 MB in the beginning and 200.3 MB in the end (delta: 69.2 MB). Free memory was 83.7 MB in the beginning and 164.3 MB in the end (delta: -80.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:46,394 INFO L168 Benchmark]: Boogie Preprocessor took 79.57 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 161.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:46,394 INFO L168 Benchmark]: RCFGBuilder took 757.25 ms. Allocated memory is still 200.3 MB. Free memory was 161.0 MB in the beginning and 105.7 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:46,395 INFO L168 Benchmark]: TraceAbstraction took 1945.13 ms. Allocated memory was 200.3 MB in the beginning and 221.2 MB in the end (delta: 21.0 MB). Free memory was 105.7 MB in the beginning and 76.5 MB in the end (delta: 29.3 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:46,399 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 131.1 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.08 ms. Allocated memory was 131.1 MB in the beginning and 200.3 MB in the end (delta: 69.2 MB). Free memory was 83.7 MB in the beginning and 164.3 MB in the end (delta: -80.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.57 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 161.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 757.25 ms. Allocated memory is still 200.3 MB. Free memory was 161.0 MB in the beginning and 105.7 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1945.13 ms. Allocated memory was 200.3 MB in the beginning and 221.2 MB in the end (delta: 21.0 MB). Free memory was 105.7 MB in the beginning and 76.5 MB in the end (delta: 29.3 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1023]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1027]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1050]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1024]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1053]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 5 error locations. SAFE Result, 1.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 SDtfs, 128 SDslu, 151 SDs, 0 SdLazy, 110 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.7352941176470589 AbsIntWeakeningRatio, 2.3529411764705883 AbsIntAvgWeakeningVarsNumRemoved, 0.35294117647058826 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 11289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...