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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2c_remove_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:35,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:35,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:35,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:35,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:35,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:35,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:35,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:35,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:35,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:35,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:35,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:35,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:35,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:35,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:35,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:35,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:35,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:35,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:35,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:35,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:35,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:35,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:35,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:35,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:35,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:35,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:35,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:35,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:35,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:35,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:35,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:35,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:35,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:35,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:35,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:35,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:35,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:35,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:35,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:35,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:35,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:04:35,965 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:35,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:35,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:35,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:35,968 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:35,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:35,968 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:35,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:35,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:35,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:35,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:35,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:35,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:35,971 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:35,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:35,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:35,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:35,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:35,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:35,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:35,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:35,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:35,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:35,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:35,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:35,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:35,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:35,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:35,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:04:36,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:36,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:36,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:36,270 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:36,270 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:36,271 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_remove_all_reverse.i [2019-10-13 21:04:36,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/090e8692b/7dd27ff5f0bd4617a8af8c28170b2f78/FLAG21fe7bf23 [2019-10-13 21:04:36,901 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:36,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_remove_all_reverse.i [2019-10-13 21:04:36,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/090e8692b/7dd27ff5f0bd4617a8af8c28170b2f78/FLAG21fe7bf23 [2019-10-13 21:04:37,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/090e8692b/7dd27ff5f0bd4617a8af8c28170b2f78 [2019-10-13 21:04:37,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:37,212 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:37,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:37,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:37,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:37,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8f9260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37, skipping insertion in model container [2019-10-13 21:04:37,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,229 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:37,278 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:37,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:37,742 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:37,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:37,851 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:37,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37 WrapperNode [2019-10-13 21:04:37,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:37,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:37,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:37,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:37,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:37,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:37,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:37,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:37,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (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 [2019-10-13 21:04:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:37,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 21:04:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-13 21:04:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_remove_last [2019-10-13 21:04:37,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:37,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:37,981 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:37,981 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:37,994 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:37,994 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:37,994 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:37,994 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:37,994 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:37,994 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:37,996 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:37,996 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:37,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:37,996 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 21:04:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-13 21:04:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_remove_last [2019-10-13 21:04:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:04:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 21:04:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:38,500 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:38,650 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:38,650 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 21:04:38,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:38 BoogieIcfgContainer [2019-10-13 21:04:38,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:38,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:38,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:38,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:38,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:37" (1/3) ... [2019-10-13 21:04:38,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5361593a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:38, skipping insertion in model container [2019-10-13 21:04:38,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37" (2/3) ... [2019-10-13 21:04:38,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5361593a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:38, skipping insertion in model container [2019-10-13 21:04:38,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:38" (3/3) ... [2019-10-13 21:04:38,663 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all_reverse.i [2019-10-13 21:04:38,682 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:38,691 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:38,699 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:38,721 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:38,721 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:38,722 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:38,722 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:38,722 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:38,722 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:38,722 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:38,722 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-13 21:04:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 21:04:38,749 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:38,749 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:38,752 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:38,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:38,757 INFO L82 PathProgramCache]: Analyzing trace with hash -2117582365, now seen corresponding path program 1 times [2019-10-13 21:04:38,767 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:38,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677421570] [2019-10-13 21:04:38,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:38,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:38,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:38,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677421570] [2019-10-13 21:04:38,984 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:38,985 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:38,985 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445568180] [2019-10-13 21:04:38,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:39,005 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:39,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:39,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:39,029 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-13 21:04:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:39,063 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2019-10-13 21:04:39,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:39,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-13 21:04:39,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:39,078 INFO L225 Difference]: With dead ends: 61 [2019-10-13 21:04:39,079 INFO L226 Difference]: Without dead ends: 35 [2019-10-13 21:04:39,083 INFO L600 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 [2019-10-13 21:04:39,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-13 21:04:39,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-13 21:04:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-13 21:04:39,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-10-13 21:04:39,150 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-10-13 21:04:39,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:39,153 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-10-13 21:04:39,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-10-13 21:04:39,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 21:04:39,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:39,157 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:39,158 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:39,159 INFO L82 PathProgramCache]: Analyzing trace with hash -95510826, now seen corresponding path program 1 times [2019-10-13 21:04:39,160 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:39,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162778100] [2019-10-13 21:04:39,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:39,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162778100] [2019-10-13 21:04:39,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:39,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:04:39,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147547535] [2019-10-13 21:04:39,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:04:39,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:39,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:04:39,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:39,423 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2019-10-13 21:04:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:39,495 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-10-13 21:04:39,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:04:39,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-13 21:04:39,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:39,500 INFO L225 Difference]: With dead ends: 55 [2019-10-13 21:04:39,500 INFO L226 Difference]: Without dead ends: 40 [2019-10-13 21:04:39,501 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:04:39,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-13 21:04:39,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2019-10-13 21:04:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-13 21:04:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-10-13 21:04:39,522 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2019-10-13 21:04:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:39,523 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-10-13 21:04:39,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:04:39,523 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-10-13 21:04:39,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-13 21:04:39,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:39,525 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:39,525 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:39,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:39,526 INFO L82 PathProgramCache]: Analyzing trace with hash -152003766, now seen corresponding path program 1 times [2019-10-13 21:04:39,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:39,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179585873] [2019-10-13 21:04:39,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:39,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179585873] [2019-10-13 21:04:39,622 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:39,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:04:39,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676324527] [2019-10-13 21:04:39,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:04:39,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:39,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:04:39,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:39,624 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2019-10-13 21:04:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:39,663 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2019-10-13 21:04:39,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:04:39,664 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-10-13 21:04:39,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:39,666 INFO L225 Difference]: With dead ends: 43 [2019-10-13 21:04:39,666 INFO L226 Difference]: Without dead ends: 39 [2019-10-13 21:04:39,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:39,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-13 21:04:39,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-10-13 21:04:39,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-13 21:04:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-10-13 21:04:39,674 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 34 [2019-10-13 21:04:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:39,674 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-10-13 21:04:39,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:04:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2019-10-13 21:04:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-13 21:04:39,676 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:39,676 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:39,677 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:39,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:39,677 INFO L82 PathProgramCache]: Analyzing trace with hash 733701937, now seen corresponding path program 1 times [2019-10-13 21:04:39,677 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:39,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859198736] [2019-10-13 21:04:39,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:39,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859198736] [2019-10-13 21:04:39,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:39,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:04:39,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102387155] [2019-10-13 21:04:39,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:39,818 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:39,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:39,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:04:39,821 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2019-10-13 21:04:39,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:39,985 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2019-10-13 21:04:39,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:04:39,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-10-13 21:04:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:39,990 INFO L225 Difference]: With dead ends: 48 [2019-10-13 21:04:39,990 INFO L226 Difference]: Without dead ends: 44 [2019-10-13 21:04:39,991 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:04:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-13 21:04:39,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2019-10-13 21:04:39,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 21:04:39,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2019-10-13 21:04:39,999 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 41 [2019-10-13 21:04:39,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:39,999 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2019-10-13 21:04:40,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-10-13 21:04:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-13 21:04:40,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:40,001 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:40,002 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:40,002 INFO L82 PathProgramCache]: Analyzing trace with hash -75644689, now seen corresponding path program 1 times [2019-10-13 21:04:40,002 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:40,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12218861] [2019-10-13 21:04:40,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:40,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:40,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:40,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12218861] [2019-10-13 21:04:40,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009429716] [2019-10-13 21:04:40,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:40,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:04:40,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:40,417 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:40,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1765152210] [2019-10-13 21:04:40,498 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 42 [2019-10-13 21:04:40,550 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:40,550 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:40,641 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:40,643 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-13 21:04:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:40,649 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:40,726 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 21:04:40,727 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:40,732 INFO L553 sIntCurrentIteration]: We unified 40 AI predicates to 40 [2019-10-13 21:04:40,732 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:40,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:40,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 8 [2019-10-13 21:04:40,733 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885397838] [2019-10-13 21:04:40,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:40,757 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:40,758 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:40,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:40,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:40,759 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 2 states. [2019-10-13 21:04:40,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:40,769 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-10-13 21:04:40,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:40,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 41 [2019-10-13 21:04:40,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:40,769 INFO L225 Difference]: With dead ends: 40 [2019-10-13 21:04:40,770 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:40,771 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:40,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:40,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-10-13 21:04:40,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:40,773 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:40,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:40,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:04:40,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:40,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:04:41,021 INFO L443 ceAbstractionStarter]: For program point L592(lines 592 600) no Hoare annotation was computed. [2019-10-13 21:04:41,021 INFO L443 ceAbstractionStarter]: For program point L592-2(lines 590 601) no Hoare annotation was computed. [2019-10-13 21:04:41,021 INFO L443 ceAbstractionStarter]: For program point dll_circular_remove_lastEXIT(lines 590 601) no Hoare annotation was computed. [2019-10-13 21:04:41,021 INFO L446 ceAbstractionStarter]: At program point dll_circular_remove_lastENTRY(lines 590 601) the Hoare annotation is: true [2019-10-13 21:04:41,022 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:41,022 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:41,022 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:41,022 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-13 21:04:41,022 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-13 21:04:41,022 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-13 21:04:41,022 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:41,023 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:41,023 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:41,023 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:41,023 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:41,025 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:41,025 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:41,025 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:04:41,026 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:41,026 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:41,026 INFO L439 ceAbstractionStarter]: At program point L608(line 608) the Hoare annotation is: false [2019-10-13 21:04:41,026 INFO L443 ceAbstractionStarter]: For program point L608-1(lines 607 609) no Hoare annotation was computed. [2019-10-13 21:04:41,026 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 602 616) the Hoare annotation is: true [2019-10-13 21:04:41,026 INFO L439 ceAbstractionStarter]: At program point L605(line 605) the Hoare annotation is: false [2019-10-13 21:04:41,026 INFO L439 ceAbstractionStarter]: At program point L607-2(lines 607 609) the Hoare annotation is: false [2019-10-13 21:04:41,027 INFO L443 ceAbstractionStarter]: For program point L605-1(line 605) no Hoare annotation was computed. [2019-10-13 21:04:41,027 INFO L443 ceAbstractionStarter]: For program point L607-3(lines 607 609) no Hoare annotation was computed. [2019-10-13 21:04:41,027 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 602 616) no Hoare annotation was computed. [2019-10-13 21:04:41,030 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 614) no Hoare annotation was computed. [2019-10-13 21:04:41,030 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 602 616) no Hoare annotation was computed. [2019-10-13 21:04:41,030 INFO L439 ceAbstractionStarter]: At program point L611(lines 602 616) the Hoare annotation is: false [2019-10-13 21:04:41,030 INFO L443 ceAbstractionStarter]: For program point L610(lines 610 612) no Hoare annotation was computed. [2019-10-13 21:04:41,030 INFO L443 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2019-10-13 21:04:41,031 INFO L446 ceAbstractionStarter]: At program point L575(line 575) the Hoare annotation is: true [2019-10-13 21:04:41,031 INFO L446 ceAbstractionStarter]: At program point L577-2(lines 577 585) the Hoare annotation is: true [2019-10-13 21:04:41,031 INFO L443 ceAbstractionStarter]: For program point dll_circular_createEXIT(lines 574 589) no Hoare annotation was computed. [2019-10-13 21:04:41,031 INFO L443 ceAbstractionStarter]: For program point L575-1(line 575) no Hoare annotation was computed. [2019-10-13 21:04:41,031 INFO L443 ceAbstractionStarter]: For program point L577-3(lines 577 585) no Hoare annotation was computed. [2019-10-13 21:04:41,032 INFO L443 ceAbstractionStarter]: For program point dll_circular_createFINAL(lines 574 589) no Hoare annotation was computed. [2019-10-13 21:04:41,032 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 582) no Hoare annotation was computed. [2019-10-13 21:04:41,032 INFO L446 ceAbstractionStarter]: At program point dll_circular_createENTRY(lines 574 589) the Hoare annotation is: true [2019-10-13 21:04:41,033 INFO L446 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: true [2019-10-13 21:04:41,033 INFO L443 ceAbstractionStarter]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2019-10-13 21:04:41,034 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-10-13 21:04:41,034 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:41,034 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-10-13 21:04:41,034 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:41,034 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:41,034 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:41,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:04:41 BoogieIcfgContainer [2019-10-13 21:04:41,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:04:41,053 INFO L168 Benchmark]: Toolchain (without parser) took 3838.55 ms. Allocated memory was 137.9 MB in the beginning and 252.7 MB in the end (delta: 114.8 MB). Free memory was 99.9 MB in the beginning and 206.5 MB in the end (delta: -106.6 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:41,056 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 21:04:41,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.47 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.7 MB in the beginning and 168.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:41,066 INFO L168 Benchmark]: Boogie Preprocessor took 65.70 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 164.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:41,067 INFO L168 Benchmark]: RCFGBuilder took 732.77 ms. Allocated memory is still 202.4 MB. Free memory was 164.5 MB in the beginning and 117.4 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:41,067 INFO L168 Benchmark]: TraceAbstraction took 2395.76 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 117.4 MB in the beginning and 206.5 MB in the end (delta: -89.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:04:41,076 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 639.47 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.7 MB in the beginning and 168.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.70 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 164.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 732.77 ms. Allocated memory is still 202.4 MB. Free memory was 164.5 MB in the beginning and 117.4 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2395.76 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 117.4 MB in the beginning and 206.5 MB in the end (delta: -89.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 614]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 49 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 30 SDslu, 247 SDs, 0 SdLazy, 81 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 21 PreInvPairs, 21 NumberOfFragments, 17 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 15439 SizeOfPredicates, 2 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 31/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 151, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.975, AVG_VARS_REMOVED_DURING_WEAKENING: 1.675, AVG_WEAKENED_CONJUNCTS: 0.15, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...