java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2c_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:35,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:35,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:35,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:35,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:35,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:35,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:35,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:35,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:35,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:35,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:35,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:35,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:35,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:35,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:35,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:35,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:35,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:35,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:35,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:35,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:35,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:35,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:35,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:35,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:35,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:35,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:35,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:35,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:35,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:35,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:35,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:35,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:35,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:35,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:35,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:35,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:35,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:35,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:35,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:35,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:35,823 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 01:03:35,838 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:35,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:35,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:35,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:35,840 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:35,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:35,840 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:35,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:35,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:35,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:35,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:35,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:35,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:35,841 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:35,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:35,842 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:35,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:35,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:35,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:35,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:35,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:35,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:35,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:35,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:35,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:35,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:35,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:35,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:35,845 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 01:03:36,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:36,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:36,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:36,135 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:36,136 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:36,136 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_remove_all.i [2019-10-15 01:03:36,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9c617b7b/0026234684c54f09be3e58be6d9bcb2c/FLAG50dc8d4f7 [2019-10-15 01:03:36,766 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:36,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_remove_all.i [2019-10-15 01:03:36,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9c617b7b/0026234684c54f09be3e58be6d9bcb2c/FLAG50dc8d4f7 [2019-10-15 01:03:37,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9c617b7b/0026234684c54f09be3e58be6d9bcb2c [2019-10-15 01:03:37,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:37,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:37,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:37,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:37,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:37,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e8d564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37, skipping insertion in model container [2019-10-15 01:03:37,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,097 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:37,133 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:37,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:37,598 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:37,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:37,720 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:37,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37 WrapperNode [2019-10-15 01:03:37,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:37,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:37,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:37,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:37,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:37,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:37,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:37,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:37,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:37,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 01:03:37,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-15 01:03:37,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_remove_first [2019-10-15 01:03:37,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:37,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:37,875 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:37,878 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:37,878 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 01:03:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-15 01:03:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_remove_first [2019-10-15 01:03:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:38,413 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:38,566 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:38,566 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 01:03:38,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:38 BoogieIcfgContainer [2019-10-15 01:03:38,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:38,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:38,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:38,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:38,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:37" (1/3) ... [2019-10-15 01:03:38,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342911ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:38, skipping insertion in model container [2019-10-15 01:03:38,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37" (2/3) ... [2019-10-15 01:03:38,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342911ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:38, skipping insertion in model container [2019-10-15 01:03:38,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:38" (3/3) ... [2019-10-15 01:03:38,576 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all.i [2019-10-15 01:03:38,585 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:38,594 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:38,605 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:38,630 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:38,630 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:38,630 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:38,631 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:38,631 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:38,631 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:38,631 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:38,631 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:38,649 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-15 01:03:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 01:03:38,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:38,657 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:38,659 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:38,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:38,665 INFO L82 PathProgramCache]: Analyzing trace with hash -2117552574, now seen corresponding path program 1 times [2019-10-15 01:03:38,674 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:38,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775216021] [2019-10-15 01:03:38,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:38,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:38,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:38,873 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 01:03:38,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775216021] [2019-10-15 01:03:38,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:38,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:38,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015472495] [2019-10-15 01:03:38,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:38,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:38,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:38,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:38,910 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-15 01:03:38,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:38,935 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2019-10-15 01:03:38,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:38,937 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-15 01:03:38,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:38,947 INFO L225 Difference]: With dead ends: 61 [2019-10-15 01:03:38,947 INFO L226 Difference]: Without dead ends: 35 [2019-10-15 01:03:38,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-15 01:03:38,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-15 01:03:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-15 01:03:38,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-10-15 01:03:38,995 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-10-15 01:03:38,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:38,996 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-10-15 01:03:38,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:38,997 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-10-15 01:03:38,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 01:03:38,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:38,999 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:39,000 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:39,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:39,001 INFO L82 PathProgramCache]: Analyzing trace with hash -95481035, now seen corresponding path program 1 times [2019-10-15 01:03:39,001 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:39,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878491365] [2019-10-15 01:03:39,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:39,165 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 01:03:39,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878491365] [2019-10-15 01:03:39,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:39,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:39,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712420725] [2019-10-15 01:03:39,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:39,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:39,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:39,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:39,187 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2019-10-15 01:03:39,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:39,278 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-10-15 01:03:39,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:39,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-15 01:03:39,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:39,280 INFO L225 Difference]: With dead ends: 55 [2019-10-15 01:03:39,280 INFO L226 Difference]: Without dead ends: 40 [2019-10-15 01:03:39,281 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 01:03:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-15 01:03:39,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2019-10-15 01:03:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-15 01:03:39,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-10-15 01:03:39,290 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2019-10-15 01:03:39,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:39,291 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-10-15 01:03:39,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:39,291 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-10-15 01:03:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-15 01:03:39,292 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:39,292 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:39,292 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:39,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:39,293 INFO L82 PathProgramCache]: Analyzing trace with hash -151973975, now seen corresponding path program 1 times [2019-10-15 01:03:39,293 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:39,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220734692] [2019-10-15 01:03:39,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:39,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:39,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220734692] [2019-10-15 01:03:39,382 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:39,382 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:03:39,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022208345] [2019-10-15 01:03:39,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:03:39,383 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:39,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:03:39,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:39,383 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2019-10-15 01:03:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:39,425 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2019-10-15 01:03:39,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:03:39,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-10-15 01:03:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:39,428 INFO L225 Difference]: With dead ends: 43 [2019-10-15 01:03:39,428 INFO L226 Difference]: Without dead ends: 39 [2019-10-15 01:03:39,430 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-15 01:03:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-10-15 01:03:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-15 01:03:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-10-15 01:03:39,440 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 34 [2019-10-15 01:03:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:39,441 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-10-15 01:03:39,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:03:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2019-10-15 01:03:39,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-15 01:03:39,443 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:39,443 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:39,444 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:39,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:39,444 INFO L82 PathProgramCache]: Analyzing trace with hash 582499475, now seen corresponding path program 1 times [2019-10-15 01:03:39,444 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:39,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017829476] [2019-10-15 01:03:39,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:39,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017829476] [2019-10-15 01:03:39,624 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:39,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:03:39,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917494467] [2019-10-15 01:03:39,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:03:39,626 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:39,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:03:39,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:39,626 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2019-10-15 01:03:39,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:39,826 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2019-10-15 01:03:39,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:03:39,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-10-15 01:03:39,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:39,833 INFO L225 Difference]: With dead ends: 48 [2019-10-15 01:03:39,833 INFO L226 Difference]: Without dead ends: 44 [2019-10-15 01:03:39,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:03:39,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-15 01:03:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2019-10-15 01:03:39,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-15 01:03:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2019-10-15 01:03:39,854 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 41 [2019-10-15 01:03:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:39,855 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2019-10-15 01:03:39,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:03:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-10-15 01:03:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-15 01:03:39,859 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:39,859 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:39,860 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:39,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:39,860 INFO L82 PathProgramCache]: Analyzing trace with hash -226847151, now seen corresponding path program 1 times [2019-10-15 01:03:39,861 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:39,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802192902] [2019-10-15 01:03:39,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:40,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802192902] [2019-10-15 01:03:40,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954958487] [2019-10-15 01:03:40,014 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 01:03:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:40,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:03:40,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:40,292 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:40,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1181962886] [2019-10-15 01:03:40,359 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 42 [2019-10-15 01:03:40,402 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:40,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:40,461 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:40,462 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-15 01:03:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:40,467 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:40,506 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:03:40,506 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:40,508 INFO L553 sIntCurrentIteration]: We unified 40 AI predicates to 40 [2019-10-15 01:03:40,509 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:40,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:40,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 8 [2019-10-15 01:03:40,510 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077000149] [2019-10-15 01:03:40,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:40,511 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:40,512 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:40,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:40,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:40,512 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 2 states. [2019-10-15 01:03:40,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:40,515 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-10-15 01:03:40,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:40,515 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 41 [2019-10-15 01:03:40,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:40,516 INFO L225 Difference]: With dead ends: 40 [2019-10-15 01:03:40,516 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:40,517 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:40,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:40,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:40,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:40,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-10-15 01:03:40,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:40,518 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:40,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:40,519 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:40,519 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:40,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:40,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:40,777 INFO L443 ceAbstractionStarter]: For program point L592(lines 592 601) no Hoare annotation was computed. [2019-10-15 01:03:40,777 INFO L443 ceAbstractionStarter]: For program point L592-2(lines 590 602) no Hoare annotation was computed. [2019-10-15 01:03:40,777 INFO L443 ceAbstractionStarter]: For program point dll_circular_remove_firstEXIT(lines 590 602) no Hoare annotation was computed. [2019-10-15 01:03:40,778 INFO L446 ceAbstractionStarter]: At program point dll_circular_remove_firstENTRY(lines 590 602) the Hoare annotation is: true [2019-10-15 01:03:40,778 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:40,778 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:40,778 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:40,778 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-15 01:03:40,778 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-15 01:03:40,778 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-15 01:03:40,778 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:40,779 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:40,779 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:40,779 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:40,779 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:40,779 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:40,779 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:40,779 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:40,780 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:40,780 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:40,780 INFO L439 ceAbstractionStarter]: At program point L609(line 609) the Hoare annotation is: false [2019-10-15 01:03:40,780 INFO L443 ceAbstractionStarter]: For program point L609-1(line 609) no Hoare annotation was computed. [2019-10-15 01:03:40,780 INFO L439 ceAbstractionStarter]: At program point L606(line 606) the Hoare annotation is: false [2019-10-15 01:03:40,780 INFO L439 ceAbstractionStarter]: At program point L608-2(lines 608 611) the Hoare annotation is: false [2019-10-15 01:03:40,780 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 603 618) the Hoare annotation is: true [2019-10-15 01:03:40,781 INFO L443 ceAbstractionStarter]: For program point L606-1(line 606) no Hoare annotation was computed. [2019-10-15 01:03:40,781 INFO L443 ceAbstractionStarter]: For program point L608-3(lines 608 611) no Hoare annotation was computed. [2019-10-15 01:03:40,781 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 603 618) no Hoare annotation was computed. [2019-10-15 01:03:40,781 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 603 618) no Hoare annotation was computed. [2019-10-15 01:03:40,781 INFO L439 ceAbstractionStarter]: At program point L613(lines 603 618) the Hoare annotation is: false [2019-10-15 01:03:40,781 INFO L443 ceAbstractionStarter]: For program point L612(lines 612 614) no Hoare annotation was computed. [2019-10-15 01:03:40,781 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 616) no Hoare annotation was computed. [2019-10-15 01:03:40,782 INFO L443 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2019-10-15 01:03:40,782 INFO L446 ceAbstractionStarter]: At program point L575(line 575) the Hoare annotation is: true [2019-10-15 01:03:40,782 INFO L446 ceAbstractionStarter]: At program point L577-2(lines 577 585) the Hoare annotation is: true [2019-10-15 01:03:40,782 INFO L443 ceAbstractionStarter]: For program point dll_circular_createEXIT(lines 574 589) no Hoare annotation was computed. [2019-10-15 01:03:40,782 INFO L443 ceAbstractionStarter]: For program point L575-1(line 575) no Hoare annotation was computed. [2019-10-15 01:03:40,782 INFO L443 ceAbstractionStarter]: For program point L577-3(lines 577 585) no Hoare annotation was computed. [2019-10-15 01:03:40,782 INFO L443 ceAbstractionStarter]: For program point dll_circular_createFINAL(lines 574 589) no Hoare annotation was computed. [2019-10-15 01:03:40,782 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:40,783 INFO L446 ceAbstractionStarter]: At program point dll_circular_createENTRY(lines 574 589) the Hoare annotation is: true [2019-10-15 01:03:40,783 INFO L446 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: true [2019-10-15 01:03:40,783 INFO L443 ceAbstractionStarter]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:40,783 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-10-15 01:03:40,783 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:40,783 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-10-15 01:03:40,783 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:40,784 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:40,784 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:40,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:40 BoogieIcfgContainer [2019-10-15 01:03:40,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:40,800 INFO L168 Benchmark]: Toolchain (without parser) took 3717.22 ms. Allocated memory was 137.4 MB in the beginning and 251.7 MB in the end (delta: 114.3 MB). Free memory was 100.7 MB in the beginning and 207.4 MB in the end (delta: -106.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:40,800 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory is still 120.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:03:40,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.43 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 167.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:40,810 INFO L168 Benchmark]: Boogie Preprocessor took 83.72 ms. Allocated memory is still 201.9 MB. Free memory was 167.4 MB in the beginning and 164.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:40,812 INFO L168 Benchmark]: RCFGBuilder took 762.50 ms. Allocated memory is still 201.9 MB. Free memory was 164.2 MB in the beginning and 116.9 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:40,813 INFO L168 Benchmark]: TraceAbstraction took 2227.08 ms. Allocated memory was 201.9 MB in the beginning and 251.7 MB in the end (delta: 49.8 MB). Free memory was 116.9 MB in the beginning and 207.4 MB in the end (delta: -90.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:03:40,816 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory is still 120.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 639.43 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 167.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.72 ms. Allocated memory is still 201.9 MB. Free memory was 167.4 MB in the beginning and 164.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 762.50 ms. Allocated memory is still 201.9 MB. Free memory was 164.2 MB in the beginning and 116.9 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2227.08 ms. Allocated memory was 201.9 MB in the beginning and 251.7 MB in the end (delta: 49.8 MB). Free memory was 116.9 MB in the beginning and 207.4 MB in the end (delta: -90.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 616]: 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: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 49 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 30 SDslu, 247 SDs, 0 SdLazy, 81 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 21 PreInvPairs, 21 NumberOfFragments, 17 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 15439 SizeOfPredicates, 2 NumberOfNonLiveVariables, 236 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 31/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 109, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.975, AVG_VARS_REMOVED_DURING_WEAKENING: 1.675, AVG_WEAKENED_CONJUNCTS: 0.15, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...