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-ext3-properties/dll_nullified-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:21,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:21,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:21,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:21,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:21,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:21,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:21,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:21,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:21,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:21,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:21,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:21,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:21,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:21,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:21,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:21,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:21,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:21,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:21,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:21,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:21,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:21,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:21,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:21,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:21,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:21,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:21,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:21,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:21,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:21,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:21,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:21,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:21,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:21,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:21,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:21,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:21,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:21,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:21,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:21,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:21,904 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 [2019-10-15 01:03:21,918 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:21,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:21,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:21,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:21,920 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:21,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:21,920 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:21,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:21,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:21,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:21,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:21,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:21,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:21,922 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:21,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:21,922 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:21,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:21,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:21,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:21,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:21,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:21,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:21,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:21,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:21,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:21,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:21,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:21,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:21,925 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 [2019-10-15 01:03:22,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:22,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:22,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:22,298 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:22,299 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:22,299 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/dll_nullified-2.i [2019-10-15 01:03:22,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a4b5753/bea26885ff4f4c26ae76d64975d5da6e/FLAG700857a44 [2019-10-15 01:03:22,841 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:22,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/dll_nullified-2.i [2019-10-15 01:03:22,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a4b5753/bea26885ff4f4c26ae76d64975d5da6e/FLAG700857a44 [2019-10-15 01:03:23,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a4b5753/bea26885ff4f4c26ae76d64975d5da6e [2019-10-15 01:03:23,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:23,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:23,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:23,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:23,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:23,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3272c0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23, skipping insertion in model container [2019-10-15 01:03:23,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,222 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:23,276 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:23,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:23,794 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:23,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:23,893 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:23,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23 WrapperNode [2019-10-15 01:03:23,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:23,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:23,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:23,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:23,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (1/1) ... [2019-10-15 01:03:23,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:23,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:23,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:23,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:23,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (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 [2019-10-15 01:03:24,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:24,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:24,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:24,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:24,024 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:24,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-15 01:03:24,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:24,031 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-15 01:03:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:24,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:24,413 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:24,601 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:24,602 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 01:03:24,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:24 BoogieIcfgContainer [2019-10-15 01:03:24,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:24,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:24,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:24,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:24,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:23" (1/3) ... [2019-10-15 01:03:24,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7f7c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:24, skipping insertion in model container [2019-10-15 01:03:24,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:23" (2/3) ... [2019-10-15 01:03:24,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7f7c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:24, skipping insertion in model container [2019-10-15 01:03:24,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:24" (3/3) ... [2019-10-15 01:03:24,612 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_nullified-2.i [2019-10-15 01:03:24,622 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:24,630 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:24,642 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:24,667 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:24,667 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:24,667 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:24,668 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:24,668 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:24,668 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:24,668 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:24,668 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-10-15 01:03:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:03:24,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:24,695 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] [2019-10-15 01:03:24,696 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:24,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:24,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1586150655, now seen corresponding path program 1 times [2019-10-15 01:03:24,712 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:24,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251703268] [2019-10-15 01:03:24,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:24,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:24,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:24,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251703268] [2019-10-15 01:03:24,909 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:24,909 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:03:24,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954509588] [2019-10-15 01:03:24,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:03:24,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:24,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:03:24,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:24,934 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-10-15 01:03:25,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:25,013 INFO L93 Difference]: Finished difference Result 64 states and 89 transitions. [2019-10-15 01:03:25,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:25,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-15 01:03:25,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:25,024 INFO L225 Difference]: With dead ends: 64 [2019-10-15 01:03:25,024 INFO L226 Difference]: Without dead ends: 34 [2019-10-15 01:03:25,027 INFO L600 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 [2019-10-15 01:03:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-15 01:03:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-10-15 01:03:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-15 01:03:25,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2019-10-15 01:03:25,070 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 20 [2019-10-15 01:03:25,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:25,070 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2019-10-15 01:03:25,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:03:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2019-10-15 01:03:25,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:03:25,072 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:25,072 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] [2019-10-15 01:03:25,072 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:25,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:25,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1586148733, now seen corresponding path program 1 times [2019-10-15 01:03:25,073 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:25,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185061368] [2019-10-15 01:03:25,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:25,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185061368] [2019-10-15 01:03:25,179 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:25,179 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:25,179 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278268531] [2019-10-15 01:03:25,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:25,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:25,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:25,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:25,183 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand 5 states. [2019-10-15 01:03:25,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:25,237 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2019-10-15 01:03:25,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:25,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-10-15 01:03:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:25,241 INFO L225 Difference]: With dead ends: 58 [2019-10-15 01:03:25,241 INFO L226 Difference]: Without dead ends: 38 [2019-10-15 01:03:25,245 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 [2019-10-15 01:03:25,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-15 01:03:25,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2019-10-15 01:03:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-15 01:03:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-10-15 01:03:25,260 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 20 [2019-10-15 01:03:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:25,260 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-10-15 01:03:25,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:25,260 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-10-15 01:03:25,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 01:03:25,263 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:25,263 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, 1] [2019-10-15 01:03:25,264 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:25,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:25,265 INFO L82 PathProgramCache]: Analyzing trace with hash -796981742, now seen corresponding path program 1 times [2019-10-15 01:03:25,265 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:25,265 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039625613] [2019-10-15 01:03:25,266 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,266 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:25,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039625613] [2019-10-15 01:03:25,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:25,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:03:25,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469748096] [2019-10-15 01:03:25,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:03:25,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:25,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:03:25,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:03:25,405 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 3 states. [2019-10-15 01:03:25,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:25,445 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2019-10-15 01:03:25,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:03:25,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-15 01:03:25,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:25,447 INFO L225 Difference]: With dead ends: 63 [2019-10-15 01:03:25,447 INFO L226 Difference]: Without dead ends: 38 [2019-10-15 01:03:25,448 INFO L600 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 [2019-10-15 01:03:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-15 01:03:25,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-10-15 01:03:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-15 01:03:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2019-10-15 01:03:25,454 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 25 [2019-10-15 01:03:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:25,455 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2019-10-15 01:03:25,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:03:25,455 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2019-10-15 01:03:25,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 01:03:25,456 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:25,456 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, 1] [2019-10-15 01:03:25,456 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:25,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1808098992, now seen corresponding path program 1 times [2019-10-15 01:03:25,457 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:25,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712527433] [2019-10-15 01:03:25,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,458 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:25,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712527433] [2019-10-15 01:03:25,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:25,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:03:25,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966388775] [2019-10-15 01:03:25,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:03:25,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:25,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:03:25,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:03:25,585 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 8 states. [2019-10-15 01:03:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:25,866 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2019-10-15 01:03:25,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:03:25,866 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-10-15 01:03:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:25,868 INFO L225 Difference]: With dead ends: 64 [2019-10-15 01:03:25,868 INFO L226 Difference]: Without dead ends: 59 [2019-10-15 01:03:25,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:03:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-15 01:03:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 46. [2019-10-15 01:03:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-15 01:03:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2019-10-15 01:03:25,878 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 25 [2019-10-15 01:03:25,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:25,879 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2019-10-15 01:03:25,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:03:25,879 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2019-10-15 01:03:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 01:03:25,881 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:25,881 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, 1] [2019-10-15 01:03:25,882 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:25,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:25,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1806250028, now seen corresponding path program 1 times [2019-10-15 01:03:25,883 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:25,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304748404] [2019-10-15 01:03:25,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:25,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:25,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304748404] [2019-10-15 01:03:25,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566225685] [2019-10-15 01:03:25,988 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 [2019-10-15 01:03:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:26,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 01:03:26,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:26,173 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:26,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1768351347] [2019-10-15 01:03:26,281 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 26 [2019-10-15 01:03:26,329 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:26,329 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:26,405 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:26,406 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 34 root evaluator evaluations with a maximum evaluation depth of 4. Performed 34 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 28 variables. [2019-10-15 01:03:26,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:26,411 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:26,475 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 85.62% of their original sizes. [2019-10-15 01:03:26,475 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:26,489 INFO L553 sIntCurrentIteration]: We unified 24 AI predicates to 24 [2019-10-15 01:03:26,489 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:26,490 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:26,490 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6, 6] total 12 [2019-10-15 01:03:26,490 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050599525] [2019-10-15 01:03:26,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:26,491 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:26,492 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:26,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:26,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:26,492 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 5 states. [2019-10-15 01:03:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:26,509 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2019-10-15 01:03:26,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:26,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-15 01:03:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:26,509 INFO L225 Difference]: With dead ends: 46 [2019-10-15 01:03:26,510 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:26,510 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:26,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:26,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-10-15 01:03:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:26,512 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:26,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:26,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:26,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:26,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:26,830 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:26,830 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:26,830 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:26,830 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 563 565) the Hoare annotation is: true [2019-10-15 01:03:26,830 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 563 565) no Hoare annotation was computed. [2019-10-15 01:03:26,831 INFO L446 ceAbstractionStarter]: At program point L564(line 564) the Hoare annotation is: true [2019-10-15 01:03:26,831 INFO L443 ceAbstractionStarter]: For program point L578-2(lines 578 580) no Hoare annotation was computed. [2019-10-15 01:03:26,831 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 566 585) the Hoare annotation is: true [2019-10-15 01:03:26,831 INFO L443 ceAbstractionStarter]: For program point L570(lines 570 572) no Hoare annotation was computed. [2019-10-15 01:03:26,831 INFO L443 ceAbstractionStarter]: For program point L570-1(lines 570 572) no Hoare annotation was computed. [2019-10-15 01:03:26,831 INFO L439 ceAbstractionStarter]: At program point L568-2(lines 568 583) the Hoare annotation is: (or (and (= dll_create_~len 5) (= 0 dll_create_~head~0.offset) (= 0 dll_create_~head~0.base)) (not (= |dll_create_#in~len| 5))) [2019-10-15 01:03:26,832 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 566 585) no Hoare annotation was computed. [2019-10-15 01:03:26,832 INFO L443 ceAbstractionStarter]: For program point L568-3(lines 568 583) no Hoare annotation was computed. [2019-10-15 01:03:26,832 INFO L446 ceAbstractionStarter]: At program point L571(line 571) the Hoare annotation is: true [2019-10-15 01:03:26,832 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 566 585) no Hoare annotation was computed. [2019-10-15 01:03:26,832 INFO L443 ceAbstractionStarter]: For program point L578(lines 578 580) no Hoare annotation was computed. [2019-10-15 01:03:26,832 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:26,832 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:26,832 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:26,833 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:26,833 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:26,835 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:26,835 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:26,835 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:26,835 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:26,835 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:26,836 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 604) no Hoare annotation was computed. [2019-10-15 01:03:26,836 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 586 606) no Hoare annotation was computed. [2019-10-15 01:03:26,836 INFO L443 ceAbstractionStarter]: For program point L597(line 597) no Hoare annotation was computed. [2019-10-15 01:03:26,840 INFO L443 ceAbstractionStarter]: For program point L597-2(line 597) no Hoare annotation was computed. [2019-10-15 01:03:26,840 INFO L443 ceAbstractionStarter]: For program point L597-3(line 597) no Hoare annotation was computed. [2019-10-15 01:03:26,840 INFO L443 ceAbstractionStarter]: For program point L597-5(lines 597 599) no Hoare annotation was computed. [2019-10-15 01:03:26,840 INFO L443 ceAbstractionStarter]: For program point L589-1(lines 589 594) no Hoare annotation was computed. [2019-10-15 01:03:26,840 INFO L439 ceAbstractionStarter]: At program point L589-3(lines 589 594) the Hoare annotation is: false [2019-10-15 01:03:26,841 INFO L439 ceAbstractionStarter]: At program point L598(lines 586 606) the Hoare annotation is: false [2019-10-15 01:03:26,841 INFO L443 ceAbstractionStarter]: For program point L590(line 590) no Hoare annotation was computed. [2019-10-15 01:03:26,841 INFO L443 ceAbstractionStarter]: For program point L590-2(line 590) no Hoare annotation was computed. [2019-10-15 01:03:26,841 INFO L443 ceAbstractionStarter]: For program point L590-3(line 590) no Hoare annotation was computed. [2019-10-15 01:03:26,843 INFO L443 ceAbstractionStarter]: For program point L590-5(lines 590 592) no Hoare annotation was computed. [2019-10-15 01:03:26,843 INFO L443 ceAbstractionStarter]: For program point L595-1(lines 586 606) no Hoare annotation was computed. [2019-10-15 01:03:26,843 INFO L443 ceAbstractionStarter]: For program point L595-2(lines 595 602) no Hoare annotation was computed. [2019-10-15 01:03:26,843 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 586 606) no Hoare annotation was computed. [2019-10-15 01:03:26,844 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 586 606) the Hoare annotation is: true [2019-10-15 01:03:26,844 INFO L439 ceAbstractionStarter]: At program point L588(line 588) the Hoare annotation is: (= main_~len~0 5) [2019-10-15 01:03:26,844 INFO L443 ceAbstractionStarter]: For program point L588-1(line 588) no Hoare annotation was computed. [2019-10-15 01:03:26,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:26 BoogieIcfgContainer [2019-10-15 01:03:26,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:26,863 INFO L168 Benchmark]: Toolchain (without parser) took 3653.48 ms. Allocated memory was 146.8 MB in the beginning and 246.9 MB in the end (delta: 100.1 MB). Free memory was 103.1 MB in the beginning and 207.5 MB in the end (delta: -104.4 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:26,865 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:26,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.66 ms. Allocated memory was 146.8 MB in the beginning and 200.3 MB in the end (delta: 53.5 MB). Free memory was 102.8 MB in the beginning and 166.0 MB in the end (delta: -63.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:26,870 INFO L168 Benchmark]: Boogie Preprocessor took 72.18 ms. Allocated memory is still 200.3 MB. Free memory was 166.0 MB in the beginning and 163.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:26,871 INFO L168 Benchmark]: RCFGBuilder took 636.79 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 118.3 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:26,872 INFO L168 Benchmark]: TraceAbstraction took 2253.62 ms. Allocated memory was 200.3 MB in the beginning and 246.9 MB in the end (delta: 46.7 MB). Free memory was 118.3 MB in the beginning and 207.5 MB in the end (delta: -89.2 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:26,879 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 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.66 ms. Allocated memory was 146.8 MB in the beginning and 200.3 MB in the end (delta: 53.5 MB). Free memory was 102.8 MB in the beginning and 166.0 MB in the end (delta: -63.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.18 ms. Allocated memory is still 200.3 MB. Free memory was 166.0 MB in the beginning and 163.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 636.79 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 118.3 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2253.62 ms. Allocated memory was 200.3 MB in the beginning and 246.9 MB in the end (delta: 46.7 MB). Free memory was 118.3 MB in the beginning and 207.5 MB in the end (delta: -89.2 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 604]: 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: 568]: Loop Invariant Derived loop invariant: ((len == 5 && 0 == head) && 0 == head) || !(\old(len) == 5) - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 149 SDtfs, 55 SDslu, 356 SDs, 0 SdLazy, 145 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=4, 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, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 13 NumberOfFragments, 28 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 7800 SizeOfPredicates, 2 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 2/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 130, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9354166666666667, AVG_VARS_REMOVED_DURING_WEAKENING: 1.2916666666666667, AVG_WEAKENED_CONJUNCTS: 1.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...