/usr/bin/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/dll2n_insert_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:31:33,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:31:33,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:31:33,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:31:33,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:31:33,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:31:33,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:31:33,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:31:33,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:31:33,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:31:33,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:31:33,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:31:33,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:31:33,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:31:33,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:31:33,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:31:33,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:31:33,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:31:33,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:31:33,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:31:33,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:31:33,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:31:33,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:31:33,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:31:33,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:31:33,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:31:33,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:31:33,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:31:33,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:31:33,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:31:33,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:31:33,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:31:33,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:31:33,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:31:33,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:31:33,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:31:33,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:31:33,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:31:33,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:31:33,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:31:33,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:31:33,877 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 [2019-11-07 00:31:33,897 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:31:33,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:31:33,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:31:33,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:31:33,899 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:31:33,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:31:33,900 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:31:33,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:31:33,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:31:33,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:31:33,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:31:33,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:31:33,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:31:33,902 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:31:33,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:31:33,903 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:31:33,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:31:33,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:31:33,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:31:33,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:31:33,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:31:33,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:33,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:31:33,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:31:33,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:31:33,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:31:33,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:31:33,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:31:33,905 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 [2019-11-07 00:31:34,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:31:34,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:31:34,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:31:34,175 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:31:34,176 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:31:34,176 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_insert_equal.i [2019-11-07 00:31:34,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff992a6c/0aee162877fa455f871b7e6b9ef5647c/FLAG646a38fb2 [2019-11-07 00:31:34,797 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:31:34,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_insert_equal.i [2019-11-07 00:31:34,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff992a6c/0aee162877fa455f871b7e6b9ef5647c/FLAG646a38fb2 [2019-11-07 00:31:35,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff992a6c/0aee162877fa455f871b7e6b9ef5647c [2019-11-07 00:31:35,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:31:35,137 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:31:35,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:35,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:31:35,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:31:35,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9cbec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35, skipping insertion in model container [2019-11-07 00:31:35,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,154 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:31:35,195 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:31:35,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:35,644 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:31:35,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:35,759 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:31:35,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35 WrapperNode [2019-11-07 00:31:35,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:35,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:31:35,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:31:35,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:31:35,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (1/1) ... [2019-11-07 00:31:35,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:31:35,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:31:35,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:31:35,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:31:35,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (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 [2019-11-07 00:31:35,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:31:35,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:31:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:31:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:31:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 00:31:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 00:31:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-11-07 00:31:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-11-07 00:31:35,918 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert [2019-11-07 00:31:35,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:31:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:31:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:31:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:31:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:31:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:31:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:31:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:31:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:31:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:31:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:31:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:31:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:31:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:31:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:31:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:31:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:31:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:31:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:31:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:31:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:31:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:31:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:31:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:31:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:31:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:31:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:31:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:31:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:31:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:31:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:31:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:31:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:31:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:31:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:31:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:31:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:31:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:31:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:31:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:31:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:31:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:31:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:31:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:31:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:31:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:31:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:31:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:31:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:31:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:31:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:31:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:31:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:31:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:31:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:31:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:31:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:31:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:31:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 00:31:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:31:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:31:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:31:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:31:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:31:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:31:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:31:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:31:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:31:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:31:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:31:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:31:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:31:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:31:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:31:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:31:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:31:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:31:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:31:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:31:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:31:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:31:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:31:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:31:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:31:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:31:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:31:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:31:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:31:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:31:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:31:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:31:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:31:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:31:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:31:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:31:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:31:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:31:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:31:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:31:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:31:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:31:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:31:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:31:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:31:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:31:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:31:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:31:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 00:31:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 00:31:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:31:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:31:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:31:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-11-07 00:31:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-11-07 00:31:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:31:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:31:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert [2019-11-07 00:31:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:31:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:31:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:31:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:31:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:31:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:31:36,441 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 00:31:36,669 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:31:36,670 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:31:36,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:36 BoogieIcfgContainer [2019-11-07 00:31:36,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:31:36,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:31:36,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:31:36,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:31:36,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:31:35" (1/3) ... [2019-11-07 00:31:36,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2920576c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:36, skipping insertion in model container [2019-11-07 00:31:36,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:35" (2/3) ... [2019-11-07 00:31:36,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2920576c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:36, skipping insertion in model container [2019-11-07 00:31:36,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:36" (3/3) ... [2019-11-07 00:31:36,680 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_insert_equal.i [2019-11-07 00:31:36,689 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:31:36,698 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:31:36,706 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:31:36,727 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:31:36,727 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:31:36,728 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:31:36,728 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:31:36,728 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:31:36,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:31:36,728 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:31:36,729 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:31:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-07 00:31:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 00:31:36,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:36,758 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:36,760 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:36,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:36,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1788681453, now seen corresponding path program 1 times [2019-11-07 00:31:36,777 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:36,778 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345365099] [2019-11-07 00:31:36,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:36,970 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345365099] [2019-11-07 00:31:36,971 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:36,973 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:31:36,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590313308] [2019-11-07 00:31:36,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:36,982 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:36,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:31:36,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:37,001 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2019-11-07 00:31:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:37,031 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2019-11-07 00:31:37,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:37,032 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2019-11-07 00:31:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:37,039 INFO L225 Difference]: With dead ends: 92 [2019-11-07 00:31:37,039 INFO L226 Difference]: Without dead ends: 39 [2019-11-07 00:31:37,043 INFO L630 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 [2019-11-07 00:31:37,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-07 00:31:37,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-07 00:31:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-07 00:31:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2019-11-07 00:31:37,094 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 31 [2019-11-07 00:31:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:37,095 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-11-07 00:31:37,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:37,095 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2019-11-07 00:31:37,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 00:31:37,097 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:37,097 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:37,097 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:37,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:37,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1747123946, now seen corresponding path program 1 times [2019-11-07 00:31:37,098 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:37,098 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562820265] [2019-11-07 00:31:37,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:37,255 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562820265] [2019-11-07 00:31:37,255 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:37,255 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:37,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533688338] [2019-11-07 00:31:37,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:37,258 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:37,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:37,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:37,259 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 3 states. [2019-11-07 00:31:37,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:37,298 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2019-11-07 00:31:37,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:37,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-07 00:31:37,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:37,305 INFO L225 Difference]: With dead ends: 52 [2019-11-07 00:31:37,305 INFO L226 Difference]: Without dead ends: 43 [2019-11-07 00:31:37,306 INFO L630 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 [2019-11-07 00:31:37,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-07 00:31:37,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2019-11-07 00:31:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-07 00:31:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2019-11-07 00:31:37,315 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 31 [2019-11-07 00:31:37,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:37,316 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2019-11-07 00:31:37,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:37,316 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2019-11-07 00:31:37,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-07 00:31:37,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:37,318 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:37,318 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:37,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:37,318 INFO L82 PathProgramCache]: Analyzing trace with hash 383573529, now seen corresponding path program 1 times [2019-11-07 00:31:37,319 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:37,319 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095701017] [2019-11-07 00:31:37,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:37,516 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095701017] [2019-11-07 00:31:37,517 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:37,517 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:31:37,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422885985] [2019-11-07 00:31:37,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:31:37,518 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:37,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:31:37,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:31:37,519 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 8 states. [2019-11-07 00:31:37,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:37,650 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2019-11-07 00:31:37,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:31:37,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-11-07 00:31:37,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:37,652 INFO L225 Difference]: With dead ends: 78 [2019-11-07 00:31:37,652 INFO L226 Difference]: Without dead ends: 45 [2019-11-07 00:31:37,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:31:37,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-07 00:31:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2019-11-07 00:31:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-07 00:31:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2019-11-07 00:31:37,660 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 32 [2019-11-07 00:31:37,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:37,660 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2019-11-07 00:31:37,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:31:37,661 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2019-11-07 00:31:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:37,662 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:37,662 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:37,662 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:37,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:37,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1130860167, now seen corresponding path program 1 times [2019-11-07 00:31:37,663 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:37,663 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046763401] [2019-11-07 00:31:37,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:31:37,732 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046763401] [2019-11-07 00:31:37,732 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:37,733 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:37,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793438846] [2019-11-07 00:31:37,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:37,734 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:37,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:37,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:37,735 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 3 states. [2019-11-07 00:31:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:37,763 INFO L93 Difference]: Finished difference Result 77 states and 92 transitions. [2019-11-07 00:31:37,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:37,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-11-07 00:31:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:37,765 INFO L225 Difference]: With dead ends: 77 [2019-11-07 00:31:37,765 INFO L226 Difference]: Without dead ends: 45 [2019-11-07 00:31:37,766 INFO L630 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 [2019-11-07 00:31:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-07 00:31:37,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2019-11-07 00:31:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-07 00:31:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2019-11-07 00:31:37,773 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 37 [2019-11-07 00:31:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:37,773 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2019-11-07 00:31:37,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2019-11-07 00:31:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:37,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:37,775 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:37,775 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:37,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:37,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1192899781, now seen corresponding path program 1 times [2019-11-07 00:31:37,776 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:37,776 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907972763] [2019-11-07 00:31:37,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:31:37,888 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907972763] [2019-11-07 00:31:37,888 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444798248] [2019-11-07 00:31:37,888 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 [2019-11-07 00:31:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:38,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 00:31:38,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:31:38,133 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:38,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:31:38,265 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1296379644] [2019-11-07 00:31:38,286 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 38 [2019-11-07 00:31:38,347 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:31:38,348 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:31:38,431 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:31:38,433 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 32 variables. [2019-11-07 00:31:38,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:38,438 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:31:38,494 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:31:38,494 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:31:38,497 INFO L553 sIntCurrentIteration]: We unified 36 AI predicates to 36 [2019-11-07 00:31:38,498 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:31:38,498 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:31:38,499 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6, 6] total 8 [2019-11-07 00:31:38,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552198792] [2019-11-07 00:31:38,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:38,501 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:38,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:31:38,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:31:38,503 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 2 states. [2019-11-07 00:31:38,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:38,508 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2019-11-07 00:31:38,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:38,508 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-11-07 00:31:38,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:38,510 INFO L225 Difference]: With dead ends: 44 [2019-11-07 00:31:38,511 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:31:38,512 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:31:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:31:38,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:31:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:31:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:31:38,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-11-07 00:31:38,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:38,531 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:31:38,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:31:38,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:31:38,742 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:38,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:31:38,812 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:38,812 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:38,812 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:38,812 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-11-07 00:31:38,813 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-11-07 00:31:38,813 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-11-07 00:31:38,813 INFO L443 ceAbstractionStarter]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2019-11-07 00:31:38,813 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: true [2019-11-07 00:31:38,813 INFO L446 ceAbstractionStarter]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2019-11-07 00:31:38,813 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2019-11-07 00:31:38,813 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2019-11-07 00:31:38,814 INFO L446 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: true [2019-11-07 00:31:38,814 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2019-11-07 00:31:38,814 INFO L443 ceAbstractionStarter]: For program point L584(lines 584 586) no Hoare annotation was computed. [2019-11-07 00:31:38,814 INFO L443 ceAbstractionStarter]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2019-11-07 00:31:38,815 INFO L443 ceAbstractionStarter]: For program point L578(lines 578 580) no Hoare annotation was computed. [2019-11-07 00:31:38,815 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-11-07 00:31:38,815 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-11-07 00:31:38,816 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-11-07 00:31:38,816 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-11-07 00:31:38,816 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-11-07 00:31:38,816 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-11-07 00:31:38,816 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:38,816 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:31:38,818 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:38,818 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:38,818 INFO L446 ceAbstractionStarter]: At program point dll_insertENTRY(lines 599 622) the Hoare annotation is: true [2019-11-07 00:31:38,818 INFO L446 ceAbstractionStarter]: At program point L603-2(lines 603 607) the Hoare annotation is: true [2019-11-07 00:31:38,819 INFO L443 ceAbstractionStarter]: For program point L603-3(lines 599 622) no Hoare annotation was computed. [2019-11-07 00:31:38,819 INFO L443 ceAbstractionStarter]: For program point L612(lines 612 614) no Hoare annotation was computed. [2019-11-07 00:31:38,819 INFO L443 ceAbstractionStarter]: For program point L608(lines 599 622) no Hoare annotation was computed. [2019-11-07 00:31:38,819 INFO L443 ceAbstractionStarter]: For program point dll_insertEXIT(lines 599 622) no Hoare annotation was computed. [2019-11-07 00:31:38,819 INFO L446 ceAbstractionStarter]: At program point L600(line 600) the Hoare annotation is: true [2019-11-07 00:31:38,819 INFO L443 ceAbstractionStarter]: For program point L600-1(line 600) no Hoare annotation was computed. [2019-11-07 00:31:38,819 INFO L443 ceAbstractionStarter]: For program point L617(lines 617 619) no Hoare annotation was computed. [2019-11-07 00:31:38,820 INFO L443 ceAbstractionStarter]: For program point L617-2(lines 617 619) no Hoare annotation was computed. [2019-11-07 00:31:38,820 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 623 645) no Hoare annotation was computed. [2019-11-07 00:31:38,820 INFO L443 ceAbstractionStarter]: For program point L632(lines 632 634) no Hoare annotation was computed. [2019-11-07 00:31:38,820 INFO L439 ceAbstractionStarter]: At program point L630-2(lines 630 637) the Hoare annotation is: false [2019-11-07 00:31:38,820 INFO L443 ceAbstractionStarter]: For program point L630-3(lines 623 645) no Hoare annotation was computed. [2019-11-07 00:31:38,820 INFO L439 ceAbstractionStarter]: At program point L626(line 626) the Hoare annotation is: false [2019-11-07 00:31:38,820 INFO L443 ceAbstractionStarter]: For program point L626-1(line 626) no Hoare annotation was computed. [2019-11-07 00:31:38,821 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 623 645) no Hoare annotation was computed. [2019-11-07 00:31:38,828 INFO L446 ceAbstractionStarter]: At program point L641(line 641) the Hoare annotation is: true [2019-11-07 00:31:38,828 INFO L443 ceAbstractionStarter]: For program point L641-1(line 641) no Hoare annotation was computed. [2019-11-07 00:31:38,828 INFO L439 ceAbstractionStarter]: At program point L639(lines 623 645) the Hoare annotation is: false [2019-11-07 00:31:38,829 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 623 645) the Hoare annotation is: true [2019-11-07 00:31:38,829 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 643) no Hoare annotation was computed. [2019-11-07 00:31:38,829 INFO L439 ceAbstractionStarter]: At program point L627(line 627) the Hoare annotation is: false [2019-11-07 00:31:38,829 INFO L443 ceAbstractionStarter]: For program point L627-1(line 627) no Hoare annotation was computed. [2019-11-07 00:31:38,829 INFO L443 ceAbstractionStarter]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2019-11-07 00:31:38,829 INFO L446 ceAbstractionStarter]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: true [2019-11-07 00:31:38,829 INFO L446 ceAbstractionStarter]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2019-11-07 00:31:38,830 INFO L443 ceAbstractionStarter]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2019-11-07 00:31:38,832 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-11-07 00:31:38,833 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-11-07 00:31:38,833 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-11-07 00:31:38,833 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-11-07 00:31:38,833 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-11-07 00:31:38,833 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-11-07 00:31:38,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:31:38 BoogieIcfgContainer [2019-11-07 00:31:38,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:31:38,850 INFO L168 Benchmark]: Toolchain (without parser) took 3709.47 ms. Allocated memory was 138.9 MB in the beginning and 247.5 MB in the end (delta: 108.5 MB). Free memory was 102.4 MB in the beginning and 200.6 MB in the end (delta: -98.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:38,851 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:31:38,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.96 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.2 MB in the beginning and 168.0 MB in the end (delta: -65.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:38,856 INFO L168 Benchmark]: Boogie Preprocessor took 88.80 ms. Allocated memory is still 203.4 MB. Free memory was 168.0 MB in the beginning and 164.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:38,859 INFO L168 Benchmark]: RCFGBuilder took 821.52 ms. Allocated memory is still 203.4 MB. Free memory was 164.7 MB in the beginning and 113.5 MB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:38,861 INFO L168 Benchmark]: TraceAbstraction took 2172.53 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 112.8 MB in the beginning and 200.6 MB in the end (delta: -87.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 00:31:38,867 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 621.96 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.2 MB in the beginning and 168.0 MB in the end (delta: -65.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.80 ms. Allocated memory is still 203.4 MB. Free memory was 168.0 MB in the beginning and 164.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 821.52 ms. Allocated memory is still 203.4 MB. Free memory was 164.7 MB in the beginning and 113.5 MB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2172.53 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 112.8 MB in the beginning and 200.6 MB in the end (delta: -87.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 643]: 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: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 623]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 630]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 60 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 197 SDtfs, 29 SDslu, 297 SDs, 0 SdLazy, 58 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 42 PreInvPairs, 43 NumberOfFragments, 21 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 235 ConstructedInterpolants, 0 QuantifiedInterpolants, 13267 SizeOfPredicates, 2 NumberOfNonLiveVariables, 227 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 5/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 152, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9722222222222222, AVG_VARS_REMOVED_DURING_WEAKENING: 1.7777777777777777, AVG_WEAKENED_CONJUNCTS: 0.16666666666666666, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...