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/dll-sorted-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 22:17:30,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 22:17:30,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 22:17:30,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 22:17:30,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 22:17:30,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 22:17:30,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 22:17:30,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 22:17:30,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 22:17:30,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 22:17:30,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 22:17:30,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 22:17:30,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 22:17:30,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 22:17:30,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 22:17:30,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 22:17:30,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 22:17:30,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 22:17:30,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 22:17:30,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 22:17:30,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 22:17:30,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 22:17:31,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 22:17:31,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 22:17:31,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 22:17:31,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 22:17:31,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 22:17:31,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 22:17:31,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 22:17:31,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 22:17:31,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 22:17:31,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 22:17:31,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 22:17:31,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 22:17:31,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 22:17:31,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 22:17:31,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 22:17:31,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 22:17:31,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 22:17:31,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 22:17:31,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 22:17:31,017 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 22:17:31,036 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 22:17:31,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 22:17:31,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 22:17:31,038 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 22:17:31,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 22:17:31,040 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 22:17:31,040 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 22:17:31,040 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 22:17:31,040 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 22:17:31,040 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 22:17:31,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 22:17:31,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 22:17:31,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 22:17:31,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 22:17:31,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 22:17:31,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 22:17:31,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 22:17:31,042 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 22:17:31,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 22:17:31,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 22:17:31,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 22:17:31,043 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 22:17:31,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 22:17:31,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 22:17:31,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 22:17:31,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 22:17:31,044 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 22:17:31,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 22:17:31,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 22:17:31,045 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 22:17:31,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 22:17:31,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 22:17:31,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 22:17:31,096 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 22:17:31,096 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 22:17:31,097 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-sorted-2.i [2019-10-02 22:17:31,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0179f1e7a/6f2ce61e973c4993893517843187e63c/FLAG5a2e3b3ab [2019-10-02 22:17:31,699 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 22:17:31,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-sorted-2.i [2019-10-02 22:17:31,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0179f1e7a/6f2ce61e973c4993893517843187e63c/FLAG5a2e3b3ab [2019-10-02 22:17:31,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0179f1e7a/6f2ce61e973c4993893517843187e63c [2019-10-02 22:17:31,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 22:17:31,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 22:17:31,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 22:17:31,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 22:17:31,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 22:17:31,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:31" (1/1) ... [2019-10-02 22:17:31,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a9dc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:31, skipping insertion in model container [2019-10-02 22:17:31,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:31" (1/1) ... [2019-10-02 22:17:31,980 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 22:17:32,045 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 22:17:32,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:17:32,514 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 22:17:32,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:17:32,631 INFO L192 MainTranslator]: Completed translation [2019-10-02 22:17:32,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32 WrapperNode [2019-10-02 22:17:32,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 22:17:32,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 22:17:32,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 22:17:32,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 22:17:32,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (1/1) ... [2019-10-02 22:17:32,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (1/1) ... [2019-10-02 22:17:32,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (1/1) ... [2019-10-02 22:17:32,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (1/1) ... [2019-10-02 22:17:32,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (1/1) ... [2019-10-02 22:17:32,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (1/1) ... [2019-10-02 22:17:32,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (1/1) ... [2019-10-02 22:17:32,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 22:17:32,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 22:17:32,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 22:17:32,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 22:17:32,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (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 22:17:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 22:17:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 22:17:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 22:17:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-02 22:17:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-02 22:17:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-02 22:17:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-02 22:17:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-02 22:17:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-02 22:17:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-02 22:17:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-02 22:17:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-02 22:17:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-02 22:17:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-02 22:17:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-02 22:17:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-02 22:17:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-02 22:17:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-02 22:17:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-02 22:17:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-02 22:17:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-02 22:17:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-02 22:17:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-02 22:17:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-02 22:17:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-02 22:17:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-02 22:17:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-02 22:17:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-02 22:17:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-02 22:17:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-02 22:17:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-02 22:17:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-02 22:17:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-02 22:17:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-02 22:17:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-02 22:17:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-02 22:17:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-02 22:17:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-02 22:17:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-02 22:17:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-02 22:17:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-02 22:17:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-02 22:17:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-02 22:17:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-02 22:17:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-02 22:17:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-02 22:17:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-02 22:17:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-02 22:17:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-02 22:17:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-02 22:17:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-02 22:17:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-02 22:17:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-02 22:17:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 22:17:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 22:17:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-02 22:17:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 22:17:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-02 22:17:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-02 22:17:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-02 22:17:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-02 22:17:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-02 22:17:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-02 22:17:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-02 22:17:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-02 22:17:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-02 22:17:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 22:17:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-02 22:17:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-02 22:17:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-02 22:17:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-02 22:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-02 22:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-02 22:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-02 22:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-02 22:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-02 22:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-02 22:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-02 22:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-02 22:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-02 22:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-02 22:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-02 22:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-02 22:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-02 22:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-02 22:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-02 22:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-02 22:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-02 22:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-02 22:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-02 22:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-02 22:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-02 22:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-02 22:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-02 22:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-02 22:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-02 22:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-02 22:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-02 22:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-02 22:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 22:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 22:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 22:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 22:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 22:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 22:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 22:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 22:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 22:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 22:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 22:17:33,499 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 22:17:33,500 INFO L283 CfgBuilder]: Removed 18 assume(true) statements. [2019-10-02 22:17:33,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:33 BoogieIcfgContainer [2019-10-02 22:17:33,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 22:17:33,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 22:17:33,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 22:17:33,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 22:17:33,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:17:31" (1/3) ... [2019-10-02 22:17:33,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c7b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:33, skipping insertion in model container [2019-10-02 22:17:33,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:32" (2/3) ... [2019-10-02 22:17:33,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c7b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:33, skipping insertion in model container [2019-10-02 22:17:33,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:33" (3/3) ... [2019-10-02 22:17:33,511 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-sorted-2.i [2019-10-02 22:17:33,521 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 22:17:33,536 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-10-02 22:17:33,554 INFO L252 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-10-02 22:17:33,590 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 22:17:33,590 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 22:17:33,590 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 22:17:33,591 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 22:17:33,591 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 22:17:33,592 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 22:17:33,596 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 22:17:33,597 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 22:17:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-10-02 22:17:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-02 22:17:33,640 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:33,642 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:33,646 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:33,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:33,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1007014106, now seen corresponding path program 1 times [2019-10-02 22:17:33,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:33,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:33,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:33,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:33,713 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:33,810 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 22:17:33,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:33,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 22:17:33,813 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:33,818 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:17:33,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:17:33,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:17:33,837 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2019-10-02 22:17:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:33,858 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2019-10-02 22:17:33,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:17:33,859 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-02 22:17:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:33,869 INFO L225 Difference]: With dead ends: 56 [2019-10-02 22:17:33,870 INFO L226 Difference]: Without dead ends: 49 [2019-10-02 22:17:33,872 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 22:17:33,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-02 22:17:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-10-02 22:17:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-02 22:17:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2019-10-02 22:17:33,914 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 10 [2019-10-02 22:17:33,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:33,915 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2019-10-02 22:17:33,915 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:17:33,915 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2019-10-02 22:17:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-02 22:17:33,916 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:33,916 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:33,917 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:33,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1170755113, now seen corresponding path program 1 times [2019-10-02 22:17:33,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:33,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:33,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:33,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:33,923 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:34,000 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 22:17:34,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:34,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 22:17:34,001 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:34,003 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 22:17:34,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 22:17:34,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 22:17:34,004 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 3 states. [2019-10-02 22:17:34,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:34,130 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2019-10-02 22:17:34,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 22:17:34,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-02 22:17:34,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:34,132 INFO L225 Difference]: With dead ends: 54 [2019-10-02 22:17:34,132 INFO L226 Difference]: Without dead ends: 54 [2019-10-02 22:17:34,135 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 22:17:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-02 22:17:34,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2019-10-02 22:17:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-02 22:17:34,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2019-10-02 22:17:34,146 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 11 [2019-10-02 22:17:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:34,146 INFO L475 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2019-10-02 22:17:34,146 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 22:17:34,147 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2019-10-02 22:17:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-02 22:17:34,148 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:34,148 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:34,148 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:34,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1725322068, now seen corresponding path program 1 times [2019-10-02 22:17:34,149 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:34,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:34,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:34,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:34,157 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 22:17:34,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:34,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 22:17:34,303 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:34,304 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 22:17:34,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 22:17:34,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 22:17:34,305 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand 4 states. [2019-10-02 22:17:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:34,435 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2019-10-02 22:17:34,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 22:17:34,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-02 22:17:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:34,437 INFO L225 Difference]: With dead ends: 80 [2019-10-02 22:17:34,437 INFO L226 Difference]: Without dead ends: 80 [2019-10-02 22:17:34,438 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 22:17:34,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-10-02 22:17:34,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 51. [2019-10-02 22:17:34,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-02 22:17:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2019-10-02 22:17:34,445 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 15 [2019-10-02 22:17:34,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:34,445 INFO L475 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2019-10-02 22:17:34,445 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 22:17:34,445 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2019-10-02 22:17:34,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-02 22:17:34,446 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:34,447 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:34,447 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:34,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:34,447 INFO L82 PathProgramCache]: Analyzing trace with hash -2189930, now seen corresponding path program 1 times [2019-10-02 22:17:34,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:34,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:34,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:34,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:34,452 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:34,792 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 22:17:34,793 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 22:17:34,793 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 22:17:34,794 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2019-10-02 22:17:34,796 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [12], [15], [21], [28], [38], [52], [55], [61], [70], [73], [81], [85], [88], [89], [231], [254], [255], [256] [2019-10-02 22:17:34,843 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 22:17:34,845 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 22:17:34,950 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 22:17:34,951 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 44 variables. [2019-10-02 22:17:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:34,956 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 22:17:35,006 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 22:17:35,007 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 22:17:35,011 INFO L420 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2019-10-02 22:17:35,011 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 22:17:35,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 22:17:35,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-10-02 22:17:35,012 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:35,013 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:17:35,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:17:35,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:17:35,014 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand 2 states. [2019-10-02 22:17:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:35,015 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 22:17:35,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:17:35,016 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-02 22:17:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:35,016 INFO L225 Difference]: With dead ends: 6 [2019-10-02 22:17:35,016 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 22:17:35,017 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 22:17:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 22:17:35,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 22:17:35,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 22:17:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 22:17:35,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-10-02 22:17:35,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:35,019 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 22:17:35,019 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:17:35,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 22:17:35,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 22:17:35,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:17:35 BoogieIcfgContainer [2019-10-02 22:17:35,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 22:17:35,028 INFO L168 Benchmark]: Toolchain (without parser) took 3067.69 ms. Allocated memory was 136.3 MB in the beginning and 228.6 MB in the end (delta: 92.3 MB). Free memory was 87.3 MB in the beginning and 127.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:35,030 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 136.3 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 22:17:35,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.17 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 87.1 MB in the beginning and 166.3 MB in the end (delta: -79.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:35,033 INFO L168 Benchmark]: Boogie Preprocessor took 78.39 ms. Allocated memory is still 201.3 MB. Free memory was 166.3 MB in the beginning and 163.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:35,035 INFO L168 Benchmark]: RCFGBuilder took 789.93 ms. Allocated memory is still 201.3 MB. Free memory was 163.2 MB in the beginning and 109.1 MB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:35,036 INFO L168 Benchmark]: TraceAbstraction took 1522.34 ms. Allocated memory was 201.3 MB in the beginning and 228.6 MB in the end (delta: 27.3 MB). Free memory was 109.1 MB in the beginning and 127.9 MB in the end (delta: -18.8 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:35,045 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 ms. Allocated memory is still 136.3 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.17 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 87.1 MB in the beginning and 166.3 MB in the end (delta: -79.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.39 ms. Allocated memory is still 201.3 MB. Free memory was 166.3 MB in the beginning and 163.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 789.93 ms. Allocated memory is still 201.3 MB. Free memory was 163.2 MB in the beginning and 109.1 MB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1522.34 ms. Allocated memory was 201.3 MB in the beginning and 228.6 MB in the end (delta: 27.3 MB). Free memory was 109.1 MB in the beginning and 127.9 MB in the end (delta: -18.8 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1058]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1016]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1052]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1059]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1051]: 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 6 error locations. SAFE Result, 1.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 164 SDtfs, 141 SDslu, 54 SDs, 0 SdLazy, 51 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 0.9239130434782609 AbsIntWeakeningRatio, 1.6956521739130435 AbsIntAvgWeakeningVarsNumRemoved, 0.2608695652173913 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 8343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...