java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/sll2c_remove_all_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 12:58:36,787 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:58:36,789 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:58:36,809 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:58:36,809 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:58:36,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:58:36,813 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:58:36,815 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:58:36,817 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:58:36,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:58:36,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:58:36,819 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:58:36,820 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:58:36,821 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:58:36,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:58:36,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:58:36,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:58:36,826 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:58:36,832 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:58:36,837 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:58:36,838 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:58:36,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:58:36,846 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:58:36,846 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:58:36,847 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:58:36,850 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:58:36,851 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:58:36,855 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:58:36,856 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:58:36,857 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:58:36,857 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:58:36,860 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:58:36,860 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:58:36,860 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:58:36,863 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:58:36,866 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:58:36,866 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 12:58:36,901 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:58:36,901 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:58:36,902 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:58:36,902 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:58:36,903 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:58:36,904 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:58:36,904 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:58:36,904 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:58:36,904 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:58:36,904 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:58:36,906 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:58:36,906 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:58:36,906 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:58:36,906 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:58:36,906 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:58:36,907 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:58:36,907 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:58:36,907 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:58:36,907 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:58:36,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:58:36,909 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:58:36,909 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:58:36,909 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:58:36,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:58:36,910 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:58:36,910 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:58:36,910 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:58:36,910 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:58:36,911 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:58:36,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:58:36,911 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:58:36,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:58:36,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:58:36,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:58:36,984 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:58:36,984 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:58:36,985 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 12:58:37,048 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b2088e2/4fb4b05389cf497f99961cc66718521d/FLAG6bdd6f211 [2018-11-23 12:58:37,603 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:58:37,603 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 12:58:37,616 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b2088e2/4fb4b05389cf497f99961cc66718521d/FLAG6bdd6f211 [2018-11-23 12:58:37,897 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b2088e2/4fb4b05389cf497f99961cc66718521d [2018-11-23 12:58:37,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:58:37,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:58:37,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:58:37,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:58:37,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:58:37,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:58:37" (1/1) ... [2018-11-23 12:58:37,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b68c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:37, skipping insertion in model container [2018-11-23 12:58:37,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:58:37" (1/1) ... [2018-11-23 12:58:37,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:58:37,995 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:58:38,402 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:58:38,419 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:58:38,503 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:58:38,571 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:58:38,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38 WrapperNode [2018-11-23 12:58:38,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:58:38,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:58:38,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:58:38,573 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:58:38,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:58:38,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:58:38,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:58:38,697 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:58:38,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (1/1) ... [2018-11-23 12:58:38,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:58:38,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:58:38,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:58:38,746 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:58:38,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (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 [2018-11-23 12:58:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:58:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 12:58:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-23 12:58:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 12:58:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-23 12:58:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-23 12:58:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:58:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:58:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:58:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:58:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 12:58:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 12:58:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 12:58:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 12:58:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2018-11-23 12:58:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2018-11-23 12:58:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_remove_first [2018-11-23 12:58:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_remove_first [2018-11-23 12:58:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:58:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:58:39,846 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:58:39,846 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-11-23 12:58:39,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:39 BoogieIcfgContainer [2018-11-23 12:58:39,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:58:39,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:58:39,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:58:39,852 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:58:39,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:58:37" (1/3) ... [2018-11-23 12:58:39,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd0a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:58:39, skipping insertion in model container [2018-11-23 12:58:39,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:38" (2/3) ... [2018-11-23 12:58:39,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd0a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:58:39, skipping insertion in model container [2018-11-23 12:58:39,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:39" (3/3) ... [2018-11-23 12:58:39,856 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 12:58:39,867 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:58:39,876 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:58:39,894 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:58:39,931 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:58:39,932 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:58:39,932 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:58:39,932 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:58:39,932 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:58:39,933 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:58:39,933 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:58:39,933 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:58:39,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:58:39,950 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-23 12:58:39,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 12:58:39,958 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:58:39,959 INFO L402 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] [2018-11-23 12:58:39,966 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:58:39,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:58:39,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2011520041, now seen corresponding path program 1 times [2018-11-23 12:58:39,977 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:58:39,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:58:40,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:40,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:40,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:40,602 INFO L256 TraceCheckUtils]: 0: Hoare triple {46#true} call ULTIMATE.init(); {46#true} is VALID [2018-11-23 12:58:40,606 INFO L273 TraceCheckUtils]: 1: Hoare triple {46#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {46#true} is VALID [2018-11-23 12:58:40,606 INFO L273 TraceCheckUtils]: 2: Hoare triple {46#true} assume true; {46#true} is VALID [2018-11-23 12:58:40,606 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {46#true} {46#true} #96#return; {46#true} is VALID [2018-11-23 12:58:40,607 INFO L256 TraceCheckUtils]: 4: Hoare triple {46#true} call #t~ret18 := main(); {46#true} is VALID [2018-11-23 12:58:40,609 INFO L273 TraceCheckUtils]: 5: Hoare triple {46#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {48#(<= 2 main_~len~0)} is VALID [2018-11-23 12:58:40,609 INFO L256 TraceCheckUtils]: 6: Hoare triple {48#(<= 2 main_~len~0)} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {46#true} is VALID [2018-11-23 12:58:40,611 INFO L273 TraceCheckUtils]: 7: Hoare triple {46#true} ~len := #in~len;~data := #in~data; {49#(<= |sll_circular_create_#in~len| sll_circular_create_~len)} is VALID [2018-11-23 12:58:40,612 INFO L256 TraceCheckUtils]: 8: Hoare triple {49#(<= |sll_circular_create_#in~len| sll_circular_create_~len)} call #t~ret3.base, #t~ret3.offset := node_create(~data); {46#true} is VALID [2018-11-23 12:58:40,612 INFO L273 TraceCheckUtils]: 9: Hoare triple {46#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {46#true} is VALID [2018-11-23 12:58:40,612 INFO L273 TraceCheckUtils]: 10: Hoare triple {46#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {46#true} is VALID [2018-11-23 12:58:40,613 INFO L273 TraceCheckUtils]: 11: Hoare triple {46#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {46#true} is VALID [2018-11-23 12:58:40,613 INFO L273 TraceCheckUtils]: 12: Hoare triple {46#true} assume true; {46#true} is VALID [2018-11-23 12:58:40,625 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {46#true} {49#(<= |sll_circular_create_#in~len| sll_circular_create_~len)} #92#return; {49#(<= |sll_circular_create_#in~len| sll_circular_create_~len)} is VALID [2018-11-23 12:58:40,634 INFO L273 TraceCheckUtils]: 14: Hoare triple {49#(<= |sll_circular_create_#in~len| sll_circular_create_~len)} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {49#(<= |sll_circular_create_#in~len| sll_circular_create_~len)} is VALID [2018-11-23 12:58:40,647 INFO L273 TraceCheckUtils]: 15: Hoare triple {49#(<= |sll_circular_create_#in~len| sll_circular_create_~len)} assume !(~len > 1); {50#(<= |sll_circular_create_#in~len| 1)} is VALID [2018-11-23 12:58:40,656 INFO L273 TraceCheckUtils]: 16: Hoare triple {50#(<= |sll_circular_create_#in~len| 1)} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {50#(<= |sll_circular_create_#in~len| 1)} is VALID [2018-11-23 12:58:40,665 INFO L273 TraceCheckUtils]: 17: Hoare triple {50#(<= |sll_circular_create_#in~len| 1)} assume true; {50#(<= |sll_circular_create_#in~len| 1)} is VALID [2018-11-23 12:58:40,672 INFO L268 TraceCheckUtils]: 18: Hoare quadruple {50#(<= |sll_circular_create_#in~len| 1)} {48#(<= 2 main_~len~0)} #88#return; {47#false} is VALID [2018-11-23 12:58:40,672 INFO L273 TraceCheckUtils]: 19: Hoare triple {47#false} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {47#false} is VALID [2018-11-23 12:58:40,673 INFO L273 TraceCheckUtils]: 20: Hoare triple {47#false} assume !(~i~0 < ~len~0); {47#false} is VALID [2018-11-23 12:58:40,673 INFO L273 TraceCheckUtils]: 21: Hoare triple {47#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {47#false} is VALID [2018-11-23 12:58:40,674 INFO L273 TraceCheckUtils]: 22: Hoare triple {47#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {47#false} is VALID [2018-11-23 12:58:40,674 INFO L273 TraceCheckUtils]: 23: Hoare triple {47#false} assume !false; {47#false} is VALID [2018-11-23 12:58:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:58:40,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:58:40,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 12:58:40,688 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-23 12:58:40,691 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:58:40,695 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 12:58:40,890 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:40,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 12:58:40,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:58:40,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:58:40,901 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2018-11-23 12:58:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:41,916 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2018-11-23 12:58:41,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 12:58:41,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-23 12:58:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:58:41,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 12:58:41,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2018-11-23 12:58:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 12:58:41,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2018-11-23 12:58:41,938 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 89 transitions. [2018-11-23 12:58:42,122 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:42,136 INFO L225 Difference]: With dead ends: 71 [2018-11-23 12:58:42,136 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 12:58:42,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:58:42,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 12:58:42,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-23 12:58:42,198 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:58:42,199 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 37 states. [2018-11-23 12:58:42,199 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 37 states. [2018-11-23 12:58:42,199 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 37 states. [2018-11-23 12:58:42,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:42,206 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-23 12:58:42,206 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-23 12:58:42,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:42,207 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:42,207 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 39 states. [2018-11-23 12:58:42,208 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 39 states. [2018-11-23 12:58:42,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:42,213 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-23 12:58:42,213 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-23 12:58:42,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:42,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:42,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:58:42,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:58:42,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-23 12:58:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-11-23 12:58:42,221 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 24 [2018-11-23 12:58:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:58:42,221 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-11-23 12:58:42,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 12:58:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-11-23 12:58:42,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 12:58:42,223 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:58:42,224 INFO L402 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] [2018-11-23 12:58:42,224 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:58:42,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:58:42,225 INFO L82 PathProgramCache]: Analyzing trace with hash -463887601, now seen corresponding path program 1 times [2018-11-23 12:58:42,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:58:42,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:58:42,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:42,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:42,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:42,443 INFO L256 TraceCheckUtils]: 0: Hoare triple {282#true} call ULTIMATE.init(); {282#true} is VALID [2018-11-23 12:58:42,443 INFO L273 TraceCheckUtils]: 1: Hoare triple {282#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {282#true} is VALID [2018-11-23 12:58:42,444 INFO L273 TraceCheckUtils]: 2: Hoare triple {282#true} assume true; {282#true} is VALID [2018-11-23 12:58:42,444 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {282#true} {282#true} #96#return; {282#true} is VALID [2018-11-23 12:58:42,444 INFO L256 TraceCheckUtils]: 4: Hoare triple {282#true} call #t~ret18 := main(); {282#true} is VALID [2018-11-23 12:58:42,445 INFO L273 TraceCheckUtils]: 5: Hoare triple {282#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {284#(<= 2 main_~len~0)} is VALID [2018-11-23 12:58:42,445 INFO L256 TraceCheckUtils]: 6: Hoare triple {284#(<= 2 main_~len~0)} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {282#true} is VALID [2018-11-23 12:58:42,446 INFO L273 TraceCheckUtils]: 7: Hoare triple {282#true} ~len := #in~len;~data := #in~data; {282#true} is VALID [2018-11-23 12:58:42,446 INFO L256 TraceCheckUtils]: 8: Hoare triple {282#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {282#true} is VALID [2018-11-23 12:58:42,446 INFO L273 TraceCheckUtils]: 9: Hoare triple {282#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {282#true} is VALID [2018-11-23 12:58:42,446 INFO L273 TraceCheckUtils]: 10: Hoare triple {282#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {282#true} is VALID [2018-11-23 12:58:42,447 INFO L273 TraceCheckUtils]: 11: Hoare triple {282#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {282#true} is VALID [2018-11-23 12:58:42,447 INFO L273 TraceCheckUtils]: 12: Hoare triple {282#true} assume true; {282#true} is VALID [2018-11-23 12:58:42,447 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {282#true} {282#true} #92#return; {282#true} is VALID [2018-11-23 12:58:42,447 INFO L273 TraceCheckUtils]: 14: Hoare triple {282#true} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {282#true} is VALID [2018-11-23 12:58:42,448 INFO L273 TraceCheckUtils]: 15: Hoare triple {282#true} assume !!(~len > 1); {282#true} is VALID [2018-11-23 12:58:42,448 INFO L256 TraceCheckUtils]: 16: Hoare triple {282#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {282#true} is VALID [2018-11-23 12:58:42,448 INFO L273 TraceCheckUtils]: 17: Hoare triple {282#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {282#true} is VALID [2018-11-23 12:58:42,448 INFO L273 TraceCheckUtils]: 18: Hoare triple {282#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {282#true} is VALID [2018-11-23 12:58:42,449 INFO L273 TraceCheckUtils]: 19: Hoare triple {282#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {282#true} is VALID [2018-11-23 12:58:42,449 INFO L273 TraceCheckUtils]: 20: Hoare triple {282#true} assume true; {282#true} is VALID [2018-11-23 12:58:42,449 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {282#true} {282#true} #94#return; {282#true} is VALID [2018-11-23 12:58:42,450 INFO L273 TraceCheckUtils]: 22: Hoare triple {282#true} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {282#true} is VALID [2018-11-23 12:58:42,450 INFO L273 TraceCheckUtils]: 23: Hoare triple {282#true} assume !(~len > 1); {282#true} is VALID [2018-11-23 12:58:42,450 INFO L273 TraceCheckUtils]: 24: Hoare triple {282#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {282#true} is VALID [2018-11-23 12:58:42,450 INFO L273 TraceCheckUtils]: 25: Hoare triple {282#true} assume true; {282#true} is VALID [2018-11-23 12:58:42,458 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {282#true} {284#(<= 2 main_~len~0)} #88#return; {284#(<= 2 main_~len~0)} is VALID [2018-11-23 12:58:42,459 INFO L273 TraceCheckUtils]: 27: Hoare triple {284#(<= 2 main_~len~0)} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {285#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:58:42,460 INFO L273 TraceCheckUtils]: 28: Hoare triple {285#(and (<= 2 main_~len~0) (= main_~i~0 0))} assume !(~i~0 < ~len~0); {283#false} is VALID [2018-11-23 12:58:42,460 INFO L273 TraceCheckUtils]: 29: Hoare triple {283#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {283#false} is VALID [2018-11-23 12:58:42,461 INFO L273 TraceCheckUtils]: 30: Hoare triple {283#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {283#false} is VALID [2018-11-23 12:58:42,461 INFO L273 TraceCheckUtils]: 31: Hoare triple {283#false} assume !false; {283#false} is VALID [2018-11-23 12:58:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:58:42,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:58:42,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 12:58:42,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-11-23 12:58:42,467 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:58:42,467 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 12:58:42,562 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:42,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:58:42,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:58:42,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:58:42,564 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 4 states. [2018-11-23 12:58:42,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:42,757 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2018-11-23 12:58:42,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:58:42,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-11-23 12:58:42,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:58:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 12:58:42,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2018-11-23 12:58:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 12:58:42,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2018-11-23 12:58:42,765 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 48 transitions. [2018-11-23 12:58:42,833 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:42,836 INFO L225 Difference]: With dead ends: 44 [2018-11-23 12:58:42,836 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 12:58:42,837 INFO L631 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 [2018-11-23 12:58:42,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 12:58:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-11-23 12:58:42,872 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:58:42,872 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand 38 states. [2018-11-23 12:58:42,872 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 38 states. [2018-11-23 12:58:42,873 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 38 states. [2018-11-23 12:58:42,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:42,877 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-11-23 12:58:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-11-23 12:58:42,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:42,878 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:42,878 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 40 states. [2018-11-23 12:58:42,878 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 40 states. [2018-11-23 12:58:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:42,882 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-11-23 12:58:42,882 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-11-23 12:58:42,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:42,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:42,884 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:58:42,884 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:58:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-23 12:58:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-11-23 12:58:42,888 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 32 [2018-11-23 12:58:42,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:58:42,888 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-11-23 12:58:42,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:58:42,889 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-11-23 12:58:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 12:58:42,890 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:58:42,890 INFO L402 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] [2018-11-23 12:58:42,891 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:58:42,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:58:42,891 INFO L82 PathProgramCache]: Analyzing trace with hash 444920191, now seen corresponding path program 1 times [2018-11-23 12:58:42,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:58:42,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:58:42,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:42,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:42,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:43,050 INFO L256 TraceCheckUtils]: 0: Hoare triple {486#true} call ULTIMATE.init(); {486#true} is VALID [2018-11-23 12:58:43,050 INFO L273 TraceCheckUtils]: 1: Hoare triple {486#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {486#true} is VALID [2018-11-23 12:58:43,051 INFO L273 TraceCheckUtils]: 2: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,051 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {486#true} {486#true} #96#return; {486#true} is VALID [2018-11-23 12:58:43,052 INFO L256 TraceCheckUtils]: 4: Hoare triple {486#true} call #t~ret18 := main(); {486#true} is VALID [2018-11-23 12:58:43,053 INFO L273 TraceCheckUtils]: 5: Hoare triple {486#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {488#(<= 2 main_~len~0)} is VALID [2018-11-23 12:58:43,054 INFO L256 TraceCheckUtils]: 6: Hoare triple {488#(<= 2 main_~len~0)} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {486#true} is VALID [2018-11-23 12:58:43,054 INFO L273 TraceCheckUtils]: 7: Hoare triple {486#true} ~len := #in~len;~data := #in~data; {486#true} is VALID [2018-11-23 12:58:43,054 INFO L256 TraceCheckUtils]: 8: Hoare triple {486#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {486#true} is VALID [2018-11-23 12:58:43,055 INFO L273 TraceCheckUtils]: 9: Hoare triple {486#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {486#true} is VALID [2018-11-23 12:58:43,055 INFO L273 TraceCheckUtils]: 10: Hoare triple {486#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {486#true} is VALID [2018-11-23 12:58:43,055 INFO L273 TraceCheckUtils]: 11: Hoare triple {486#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {486#true} is VALID [2018-11-23 12:58:43,056 INFO L273 TraceCheckUtils]: 12: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,056 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {486#true} {486#true} #92#return; {486#true} is VALID [2018-11-23 12:58:43,056 INFO L273 TraceCheckUtils]: 14: Hoare triple {486#true} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {486#true} is VALID [2018-11-23 12:58:43,056 INFO L273 TraceCheckUtils]: 15: Hoare triple {486#true} assume !!(~len > 1); {486#true} is VALID [2018-11-23 12:58:43,057 INFO L256 TraceCheckUtils]: 16: Hoare triple {486#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {486#true} is VALID [2018-11-23 12:58:43,057 INFO L273 TraceCheckUtils]: 17: Hoare triple {486#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {486#true} is VALID [2018-11-23 12:58:43,057 INFO L273 TraceCheckUtils]: 18: Hoare triple {486#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {486#true} is VALID [2018-11-23 12:58:43,057 INFO L273 TraceCheckUtils]: 19: Hoare triple {486#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {486#true} is VALID [2018-11-23 12:58:43,058 INFO L273 TraceCheckUtils]: 20: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,058 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {486#true} {486#true} #94#return; {486#true} is VALID [2018-11-23 12:58:43,058 INFO L273 TraceCheckUtils]: 22: Hoare triple {486#true} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {486#true} is VALID [2018-11-23 12:58:43,058 INFO L273 TraceCheckUtils]: 23: Hoare triple {486#true} assume !(~len > 1); {486#true} is VALID [2018-11-23 12:58:43,059 INFO L273 TraceCheckUtils]: 24: Hoare triple {486#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {486#true} is VALID [2018-11-23 12:58:43,059 INFO L273 TraceCheckUtils]: 25: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,064 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {486#true} {488#(<= 2 main_~len~0)} #88#return; {488#(<= 2 main_~len~0)} is VALID [2018-11-23 12:58:43,072 INFO L273 TraceCheckUtils]: 27: Hoare triple {488#(<= 2 main_~len~0)} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {489#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:58:43,074 INFO L273 TraceCheckUtils]: 28: Hoare triple {489#(and (<= 2 main_~len~0) (= main_~i~0 0))} assume !!(~i~0 < ~len~0); {489#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:58:43,074 INFO L256 TraceCheckUtils]: 29: Hoare triple {489#(and (<= 2 main_~len~0) (= main_~i~0 0))} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {486#true} is VALID [2018-11-23 12:58:43,074 INFO L273 TraceCheckUtils]: 30: Hoare triple {486#true} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {486#true} is VALID [2018-11-23 12:58:43,075 INFO L273 TraceCheckUtils]: 31: Hoare triple {486#true} assume ~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset;havoc #t~mem8.base, #t~mem8.offset;call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem9.base, #t~mem9.offset);havoc #t~mem9.base, #t~mem9.offset;call write~$Pointer$(0, 0, ~head.base, ~head.offset, 4); {486#true} is VALID [2018-11-23 12:58:43,075 INFO L273 TraceCheckUtils]: 32: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,077 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {486#true} {489#(and (<= 2 main_~len~0) (= main_~i~0 0))} #90#return; {489#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:58:43,078 INFO L273 TraceCheckUtils]: 34: Hoare triple {489#(and (<= 2 main_~len~0) (= main_~i~0 0))} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {490#(<= (+ main_~i~0 1) main_~len~0)} is VALID [2018-11-23 12:58:43,080 INFO L273 TraceCheckUtils]: 35: Hoare triple {490#(<= (+ main_~i~0 1) main_~len~0)} assume !(~i~0 < ~len~0); {487#false} is VALID [2018-11-23 12:58:43,080 INFO L273 TraceCheckUtils]: 36: Hoare triple {487#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {487#false} is VALID [2018-11-23 12:58:43,080 INFO L273 TraceCheckUtils]: 37: Hoare triple {487#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {487#false} is VALID [2018-11-23 12:58:43,081 INFO L273 TraceCheckUtils]: 38: Hoare triple {487#false} assume !false; {487#false} is VALID [2018-11-23 12:58:43,084 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:58:43,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:58:43,084 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:58:43,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:43,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:58:43,669 INFO L256 TraceCheckUtils]: 0: Hoare triple {486#true} call ULTIMATE.init(); {486#true} is VALID [2018-11-23 12:58:43,670 INFO L273 TraceCheckUtils]: 1: Hoare triple {486#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {486#true} is VALID [2018-11-23 12:58:43,670 INFO L273 TraceCheckUtils]: 2: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,670 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {486#true} {486#true} #96#return; {486#true} is VALID [2018-11-23 12:58:43,671 INFO L256 TraceCheckUtils]: 4: Hoare triple {486#true} call #t~ret18 := main(); {486#true} is VALID [2018-11-23 12:58:43,684 INFO L273 TraceCheckUtils]: 5: Hoare triple {486#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {488#(<= 2 main_~len~0)} is VALID [2018-11-23 12:58:43,684 INFO L256 TraceCheckUtils]: 6: Hoare triple {488#(<= 2 main_~len~0)} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {486#true} is VALID [2018-11-23 12:58:43,685 INFO L273 TraceCheckUtils]: 7: Hoare triple {486#true} ~len := #in~len;~data := #in~data; {486#true} is VALID [2018-11-23 12:58:43,685 INFO L256 TraceCheckUtils]: 8: Hoare triple {486#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {486#true} is VALID [2018-11-23 12:58:43,686 INFO L273 TraceCheckUtils]: 9: Hoare triple {486#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {486#true} is VALID [2018-11-23 12:58:43,686 INFO L273 TraceCheckUtils]: 10: Hoare triple {486#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {486#true} is VALID [2018-11-23 12:58:43,686 INFO L273 TraceCheckUtils]: 11: Hoare triple {486#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {486#true} is VALID [2018-11-23 12:58:43,687 INFO L273 TraceCheckUtils]: 12: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,688 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {486#true} {486#true} #92#return; {486#true} is VALID [2018-11-23 12:58:43,688 INFO L273 TraceCheckUtils]: 14: Hoare triple {486#true} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {486#true} is VALID [2018-11-23 12:58:43,688 INFO L273 TraceCheckUtils]: 15: Hoare triple {486#true} assume !!(~len > 1); {486#true} is VALID [2018-11-23 12:58:43,689 INFO L256 TraceCheckUtils]: 16: Hoare triple {486#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {486#true} is VALID [2018-11-23 12:58:43,689 INFO L273 TraceCheckUtils]: 17: Hoare triple {486#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {486#true} is VALID [2018-11-23 12:58:43,689 INFO L273 TraceCheckUtils]: 18: Hoare triple {486#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {486#true} is VALID [2018-11-23 12:58:43,690 INFO L273 TraceCheckUtils]: 19: Hoare triple {486#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {486#true} is VALID [2018-11-23 12:58:43,690 INFO L273 TraceCheckUtils]: 20: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,690 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {486#true} {486#true} #94#return; {486#true} is VALID [2018-11-23 12:58:43,691 INFO L273 TraceCheckUtils]: 22: Hoare triple {486#true} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {486#true} is VALID [2018-11-23 12:58:43,691 INFO L273 TraceCheckUtils]: 23: Hoare triple {486#true} assume !(~len > 1); {486#true} is VALID [2018-11-23 12:58:43,691 INFO L273 TraceCheckUtils]: 24: Hoare triple {486#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {486#true} is VALID [2018-11-23 12:58:43,691 INFO L273 TraceCheckUtils]: 25: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,711 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {486#true} {488#(<= 2 main_~len~0)} #88#return; {488#(<= 2 main_~len~0)} is VALID [2018-11-23 12:58:43,721 INFO L273 TraceCheckUtils]: 27: Hoare triple {488#(<= 2 main_~len~0)} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {575#(and (<= main_~i~0 0) (<= 2 main_~len~0))} is VALID [2018-11-23 12:58:43,722 INFO L273 TraceCheckUtils]: 28: Hoare triple {575#(and (<= main_~i~0 0) (<= 2 main_~len~0))} assume !!(~i~0 < ~len~0); {575#(and (<= main_~i~0 0) (<= 2 main_~len~0))} is VALID [2018-11-23 12:58:43,722 INFO L256 TraceCheckUtils]: 29: Hoare triple {575#(and (<= main_~i~0 0) (<= 2 main_~len~0))} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {486#true} is VALID [2018-11-23 12:58:43,722 INFO L273 TraceCheckUtils]: 30: Hoare triple {486#true} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {486#true} is VALID [2018-11-23 12:58:43,723 INFO L273 TraceCheckUtils]: 31: Hoare triple {486#true} assume ~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset;havoc #t~mem8.base, #t~mem8.offset;call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem9.base, #t~mem9.offset);havoc #t~mem9.base, #t~mem9.offset;call write~$Pointer$(0, 0, ~head.base, ~head.offset, 4); {486#true} is VALID [2018-11-23 12:58:43,723 INFO L273 TraceCheckUtils]: 32: Hoare triple {486#true} assume true; {486#true} is VALID [2018-11-23 12:58:43,728 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {486#true} {575#(and (<= main_~i~0 0) (<= 2 main_~len~0))} #90#return; {575#(and (<= main_~i~0 0) (<= 2 main_~len~0))} is VALID [2018-11-23 12:58:43,729 INFO L273 TraceCheckUtils]: 34: Hoare triple {575#(and (<= main_~i~0 0) (<= 2 main_~len~0))} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {597#(and (<= main_~i~0 1) (<= 2 main_~len~0))} is VALID [2018-11-23 12:58:43,729 INFO L273 TraceCheckUtils]: 35: Hoare triple {597#(and (<= main_~i~0 1) (<= 2 main_~len~0))} assume !(~i~0 < ~len~0); {487#false} is VALID [2018-11-23 12:58:43,730 INFO L273 TraceCheckUtils]: 36: Hoare triple {487#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {487#false} is VALID [2018-11-23 12:58:43,730 INFO L273 TraceCheckUtils]: 37: Hoare triple {487#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {487#false} is VALID [2018-11-23 12:58:43,730 INFO L273 TraceCheckUtils]: 38: Hoare triple {487#false} assume !false; {487#false} is VALID [2018-11-23 12:58:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:58:43,766 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:58:43,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-23 12:58:43,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-11-23 12:58:43,767 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:58:43,768 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-23 12:58:43,871 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:43,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:58:43,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:58:43,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:58:43,872 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2018-11-23 12:58:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:44,283 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2018-11-23 12:58:44,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:58:44,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-11-23 12:58:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:58:44,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 12:58:44,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 52 transitions. [2018-11-23 12:58:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 12:58:44,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 52 transitions. [2018-11-23 12:58:44,290 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 52 transitions. [2018-11-23 12:58:44,378 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:44,382 INFO L225 Difference]: With dead ends: 47 [2018-11-23 12:58:44,382 INFO L226 Difference]: Without dead ends: 43 [2018-11-23 12:58:44,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2018-11-23 12:58:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-23 12:58:44,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-11-23 12:58:44,438 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:58:44,439 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 41 states. [2018-11-23 12:58:44,439 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 41 states. [2018-11-23 12:58:44,439 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 41 states. [2018-11-23 12:58:44,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:44,444 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-11-23 12:58:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-23 12:58:44,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:44,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:44,445 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 43 states. [2018-11-23 12:58:44,445 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 43 states. [2018-11-23 12:58:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:44,449 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-11-23 12:58:44,450 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-23 12:58:44,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:44,451 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:44,451 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:58:44,451 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:58:44,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-23 12:58:44,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-11-23 12:58:44,454 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 39 [2018-11-23 12:58:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:58:44,455 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-11-23 12:58:44,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:58:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-11-23 12:58:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 12:58:44,460 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:58:44,461 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 12:58:44,461 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:58:44,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:58:44,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1138129649, now seen corresponding path program 2 times [2018-11-23 12:58:44,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:58:44,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:58:44,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:44,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:44,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:44,749 INFO L256 TraceCheckUtils]: 0: Hoare triple {825#true} call ULTIMATE.init(); {825#true} is VALID [2018-11-23 12:58:44,750 INFO L273 TraceCheckUtils]: 1: Hoare triple {825#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {825#true} is VALID [2018-11-23 12:58:44,750 INFO L273 TraceCheckUtils]: 2: Hoare triple {825#true} assume true; {825#true} is VALID [2018-11-23 12:58:44,751 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {825#true} {825#true} #96#return; {825#true} is VALID [2018-11-23 12:58:44,751 INFO L256 TraceCheckUtils]: 4: Hoare triple {825#true} call #t~ret18 := main(); {825#true} is VALID [2018-11-23 12:58:44,752 INFO L273 TraceCheckUtils]: 5: Hoare triple {825#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {825#true} is VALID [2018-11-23 12:58:44,752 INFO L256 TraceCheckUtils]: 6: Hoare triple {825#true} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {825#true} is VALID [2018-11-23 12:58:44,753 INFO L273 TraceCheckUtils]: 7: Hoare triple {825#true} ~len := #in~len;~data := #in~data; {825#true} is VALID [2018-11-23 12:58:44,753 INFO L256 TraceCheckUtils]: 8: Hoare triple {825#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {825#true} is VALID [2018-11-23 12:58:44,753 INFO L273 TraceCheckUtils]: 9: Hoare triple {825#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {825#true} is VALID [2018-11-23 12:58:44,754 INFO L273 TraceCheckUtils]: 10: Hoare triple {825#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {825#true} is VALID [2018-11-23 12:58:44,754 INFO L273 TraceCheckUtils]: 11: Hoare triple {825#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {825#true} is VALID [2018-11-23 12:58:44,754 INFO L273 TraceCheckUtils]: 12: Hoare triple {825#true} assume true; {825#true} is VALID [2018-11-23 12:58:44,755 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {825#true} {825#true} #92#return; {825#true} is VALID [2018-11-23 12:58:44,755 INFO L273 TraceCheckUtils]: 14: Hoare triple {825#true} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {825#true} is VALID [2018-11-23 12:58:44,755 INFO L273 TraceCheckUtils]: 15: Hoare triple {825#true} assume !!(~len > 1); {825#true} is VALID [2018-11-23 12:58:44,755 INFO L256 TraceCheckUtils]: 16: Hoare triple {825#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {825#true} is VALID [2018-11-23 12:58:44,756 INFO L273 TraceCheckUtils]: 17: Hoare triple {825#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {825#true} is VALID [2018-11-23 12:58:44,756 INFO L273 TraceCheckUtils]: 18: Hoare triple {825#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {825#true} is VALID [2018-11-23 12:58:44,756 INFO L273 TraceCheckUtils]: 19: Hoare triple {825#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {825#true} is VALID [2018-11-23 12:58:44,756 INFO L273 TraceCheckUtils]: 20: Hoare triple {825#true} assume true; {825#true} is VALID [2018-11-23 12:58:44,756 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {825#true} {825#true} #94#return; {825#true} is VALID [2018-11-23 12:58:44,757 INFO L273 TraceCheckUtils]: 22: Hoare triple {825#true} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {825#true} is VALID [2018-11-23 12:58:44,757 INFO L273 TraceCheckUtils]: 23: Hoare triple {825#true} assume !(~len > 1); {825#true} is VALID [2018-11-23 12:58:44,757 INFO L273 TraceCheckUtils]: 24: Hoare triple {825#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {825#true} is VALID [2018-11-23 12:58:44,757 INFO L273 TraceCheckUtils]: 25: Hoare triple {825#true} assume true; {825#true} is VALID [2018-11-23 12:58:44,758 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {825#true} {825#true} #88#return; {825#true} is VALID [2018-11-23 12:58:44,758 INFO L273 TraceCheckUtils]: 27: Hoare triple {825#true} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {825#true} is VALID [2018-11-23 12:58:44,758 INFO L273 TraceCheckUtils]: 28: Hoare triple {825#true} assume !!(~i~0 < ~len~0); {825#true} is VALID [2018-11-23 12:58:44,758 INFO L256 TraceCheckUtils]: 29: Hoare triple {825#true} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {825#true} is VALID [2018-11-23 12:58:44,758 INFO L273 TraceCheckUtils]: 30: Hoare triple {825#true} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {825#true} is VALID [2018-11-23 12:58:44,759 INFO L273 TraceCheckUtils]: 31: Hoare triple {825#true} assume ~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset;havoc #t~mem8.base, #t~mem8.offset;call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem9.base, #t~mem9.offset);havoc #t~mem9.base, #t~mem9.offset;call write~$Pointer$(0, 0, ~head.base, ~head.offset, 4); {825#true} is VALID [2018-11-23 12:58:44,759 INFO L273 TraceCheckUtils]: 32: Hoare triple {825#true} assume true; {825#true} is VALID [2018-11-23 12:58:44,759 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {825#true} {825#true} #90#return; {825#true} is VALID [2018-11-23 12:58:44,759 INFO L273 TraceCheckUtils]: 34: Hoare triple {825#true} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {825#true} is VALID [2018-11-23 12:58:44,759 INFO L273 TraceCheckUtils]: 35: Hoare triple {825#true} assume !!(~i~0 < ~len~0); {825#true} is VALID [2018-11-23 12:58:44,760 INFO L256 TraceCheckUtils]: 36: Hoare triple {825#true} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {825#true} is VALID [2018-11-23 12:58:44,760 INFO L273 TraceCheckUtils]: 37: Hoare triple {825#true} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {827#(and (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:44,765 INFO L273 TraceCheckUtils]: 38: Hoare triple {827#(and (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} assume ~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset;havoc #t~mem8.base, #t~mem8.offset;call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem9.base, #t~mem9.offset);havoc #t~mem9.base, #t~mem9.offset;call write~$Pointer$(0, 0, ~head.base, ~head.offset, 4); {828#(and (= 0 (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))} is VALID [2018-11-23 12:58:44,766 INFO L273 TraceCheckUtils]: 39: Hoare triple {828#(and (= 0 (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))} assume true; {828#(and (= 0 (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))} is VALID [2018-11-23 12:58:44,767 INFO L268 TraceCheckUtils]: 40: Hoare quadruple {828#(and (= 0 (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))} {825#true} #90#return; {829#(and (= 0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)))} is VALID [2018-11-23 12:58:44,768 INFO L273 TraceCheckUtils]: 41: Hoare triple {829#(and (= 0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)))} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {829#(and (= 0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)))} is VALID [2018-11-23 12:58:44,771 INFO L273 TraceCheckUtils]: 42: Hoare triple {829#(and (= 0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)))} assume !(~i~0 < ~len~0); {829#(and (= 0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)))} is VALID [2018-11-23 12:58:44,773 INFO L273 TraceCheckUtils]: 43: Hoare triple {829#(and (= 0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)))} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {830#(and (= 0 |main_#t~mem17.base|) (= |main_#t~mem17.offset| 0))} is VALID [2018-11-23 12:58:44,775 INFO L273 TraceCheckUtils]: 44: Hoare triple {830#(and (= 0 |main_#t~mem17.base|) (= |main_#t~mem17.offset| 0))} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {826#false} is VALID [2018-11-23 12:58:44,775 INFO L273 TraceCheckUtils]: 45: Hoare triple {826#false} assume !false; {826#false} is VALID [2018-11-23 12:58:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 12:58:44,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:58:44,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:58:44,782 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-11-23 12:58:44,782 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:58:44,783 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-23 12:58:44,910 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:44,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:58:44,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:58:44,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:58:44,912 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 6 states. [2018-11-23 12:58:45,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:45,592 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-11-23 12:58:45,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:58:45,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-11-23 12:58:45,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:58:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 12:58:45,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 58 transitions. [2018-11-23 12:58:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 12:58:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 58 transitions. [2018-11-23 12:58:45,599 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 58 transitions. [2018-11-23 12:58:45,686 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:45,690 INFO L225 Difference]: With dead ends: 57 [2018-11-23 12:58:45,690 INFO L226 Difference]: Without dead ends: 53 [2018-11-23 12:58:45,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-23 12:58:45,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-23 12:58:45,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2018-11-23 12:58:45,729 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:58:45,729 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand 43 states. [2018-11-23 12:58:45,729 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 43 states. [2018-11-23 12:58:45,730 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 43 states. [2018-11-23 12:58:45,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:45,734 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2018-11-23 12:58:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2018-11-23 12:58:45,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:45,735 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:45,736 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 53 states. [2018-11-23 12:58:45,736 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 53 states. [2018-11-23 12:58:45,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:45,740 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2018-11-23 12:58:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2018-11-23 12:58:45,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:45,741 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:45,741 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:58:45,742 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:58:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-23 12:58:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-11-23 12:58:45,745 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 46 [2018-11-23 12:58:45,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:58:45,745 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-11-23 12:58:45,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:58:45,746 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-23 12:58:45,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 12:58:45,747 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:58:45,747 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2018-11-23 12:58:45,748 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:58:45,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:58:45,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1853941738, now seen corresponding path program 1 times [2018-11-23 12:58:45,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:58:45,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:58:45,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:45,750 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 12:58:45,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:46,250 INFO L256 TraceCheckUtils]: 0: Hoare triple {1088#true} call ULTIMATE.init(); {1088#true} is VALID [2018-11-23 12:58:46,251 INFO L273 TraceCheckUtils]: 1: Hoare triple {1088#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1088#true} is VALID [2018-11-23 12:58:46,251 INFO L273 TraceCheckUtils]: 2: Hoare triple {1088#true} assume true; {1088#true} is VALID [2018-11-23 12:58:46,251 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1088#true} {1088#true} #96#return; {1088#true} is VALID [2018-11-23 12:58:46,252 INFO L256 TraceCheckUtils]: 4: Hoare triple {1088#true} call #t~ret18 := main(); {1088#true} is VALID [2018-11-23 12:58:46,252 INFO L273 TraceCheckUtils]: 5: Hoare triple {1088#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1088#true} is VALID [2018-11-23 12:58:46,252 INFO L256 TraceCheckUtils]: 6: Hoare triple {1088#true} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {1088#true} is VALID [2018-11-23 12:58:46,253 INFO L273 TraceCheckUtils]: 7: Hoare triple {1088#true} ~len := #in~len;~data := #in~data; {1088#true} is VALID [2018-11-23 12:58:46,253 INFO L256 TraceCheckUtils]: 8: Hoare triple {1088#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1088#true} is VALID [2018-11-23 12:58:46,253 INFO L273 TraceCheckUtils]: 9: Hoare triple {1088#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1088#true} is VALID [2018-11-23 12:58:46,254 INFO L273 TraceCheckUtils]: 10: Hoare triple {1088#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1088#true} is VALID [2018-11-23 12:58:46,254 INFO L273 TraceCheckUtils]: 11: Hoare triple {1088#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1088#true} is VALID [2018-11-23 12:58:46,254 INFO L273 TraceCheckUtils]: 12: Hoare triple {1088#true} assume true; {1088#true} is VALID [2018-11-23 12:58:46,254 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1088#true} {1088#true} #92#return; {1088#true} is VALID [2018-11-23 12:58:46,254 INFO L273 TraceCheckUtils]: 14: Hoare triple {1088#true} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {1088#true} is VALID [2018-11-23 12:58:46,255 INFO L273 TraceCheckUtils]: 15: Hoare triple {1088#true} assume !!(~len > 1); {1088#true} is VALID [2018-11-23 12:58:46,255 INFO L256 TraceCheckUtils]: 16: Hoare triple {1088#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1088#true} is VALID [2018-11-23 12:58:46,255 INFO L273 TraceCheckUtils]: 17: Hoare triple {1088#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1088#true} is VALID [2018-11-23 12:58:46,255 INFO L273 TraceCheckUtils]: 18: Hoare triple {1088#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1088#true} is VALID [2018-11-23 12:58:46,256 INFO L273 TraceCheckUtils]: 19: Hoare triple {1088#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1088#true} is VALID [2018-11-23 12:58:46,256 INFO L273 TraceCheckUtils]: 20: Hoare triple {1088#true} assume true; {1088#true} is VALID [2018-11-23 12:58:46,256 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1088#true} {1088#true} #94#return; {1088#true} is VALID [2018-11-23 12:58:46,256 INFO L273 TraceCheckUtils]: 22: Hoare triple {1088#true} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1088#true} is VALID [2018-11-23 12:58:46,257 INFO L273 TraceCheckUtils]: 23: Hoare triple {1088#true} assume !(~len > 1); {1088#true} is VALID [2018-11-23 12:58:46,257 INFO L273 TraceCheckUtils]: 24: Hoare triple {1088#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1088#true} is VALID [2018-11-23 12:58:46,257 INFO L273 TraceCheckUtils]: 25: Hoare triple {1088#true} assume true; {1088#true} is VALID [2018-11-23 12:58:46,257 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {1088#true} {1088#true} #88#return; {1088#true} is VALID [2018-11-23 12:58:46,258 INFO L273 TraceCheckUtils]: 27: Hoare triple {1088#true} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {1088#true} is VALID [2018-11-23 12:58:46,258 INFO L273 TraceCheckUtils]: 28: Hoare triple {1088#true} assume !!(~i~0 < ~len~0); {1088#true} is VALID [2018-11-23 12:58:46,258 INFO L256 TraceCheckUtils]: 29: Hoare triple {1088#true} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1088#true} is VALID [2018-11-23 12:58:46,258 INFO L273 TraceCheckUtils]: 30: Hoare triple {1088#true} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1088#true} is VALID [2018-11-23 12:58:46,259 INFO L273 TraceCheckUtils]: 31: Hoare triple {1088#true} assume ~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset;havoc #t~mem8.base, #t~mem8.offset;call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem9.base, #t~mem9.offset);havoc #t~mem9.base, #t~mem9.offset;call write~$Pointer$(0, 0, ~head.base, ~head.offset, 4); {1088#true} is VALID [2018-11-23 12:58:46,259 INFO L273 TraceCheckUtils]: 32: Hoare triple {1088#true} assume true; {1088#true} is VALID [2018-11-23 12:58:46,259 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {1088#true} {1088#true} #90#return; {1088#true} is VALID [2018-11-23 12:58:46,259 INFO L273 TraceCheckUtils]: 34: Hoare triple {1088#true} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1088#true} is VALID [2018-11-23 12:58:46,260 INFO L273 TraceCheckUtils]: 35: Hoare triple {1088#true} assume !!(~i~0 < ~len~0); {1088#true} is VALID [2018-11-23 12:58:46,260 INFO L256 TraceCheckUtils]: 36: Hoare triple {1088#true} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1088#true} is VALID [2018-11-23 12:58:46,267 INFO L273 TraceCheckUtils]: 37: Hoare triple {1088#true} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1090#(and (= |sll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= sll_circular_remove_first_~temp~1.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |sll_circular_remove_first_#t~mem8.offset| (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= sll_circular_remove_first_~temp~1.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))))} is VALID [2018-11-23 12:58:46,269 INFO L273 TraceCheckUtils]: 38: Hoare triple {1090#(and (= |sll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= sll_circular_remove_first_~temp~1.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |sll_circular_remove_first_#t~mem8.offset| (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= sll_circular_remove_first_~temp~1.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))))} assume !(~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset);havoc #t~mem8.base, #t~mem8.offset;call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~head.base, ~head.offset, 4);~last~1.base, ~last~1.offset := #t~mem10.base, #t~mem10.offset;havoc #t~mem10.base, #t~mem10.offset; {1091#(or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))))} is VALID [2018-11-23 12:58:46,270 INFO L273 TraceCheckUtils]: 39: Hoare triple {1091#(or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))))} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1092#(or (and (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (not (= |sll_circular_remove_first_#t~mem12.base| |sll_circular_remove_first_#t~mem11.base|)) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (and (not (= |sll_circular_remove_first_#t~mem12.offset| |sll_circular_remove_first_#t~mem11.offset|)) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))))} is VALID [2018-11-23 12:58:46,271 INFO L273 TraceCheckUtils]: 40: Hoare triple {1092#(or (and (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (not (= |sll_circular_remove_first_#t~mem12.base| |sll_circular_remove_first_#t~mem11.base|)) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (and (not (= |sll_circular_remove_first_#t~mem12.offset| |sll_circular_remove_first_#t~mem11.offset|)) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))))} assume !(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset; {1089#false} is VALID [2018-11-23 12:58:46,271 INFO L273 TraceCheckUtils]: 41: Hoare triple {1089#false} call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem14.base, #t~mem14.offset);havoc #t~mem14.base, #t~mem14.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1089#false} is VALID [2018-11-23 12:58:46,271 INFO L273 TraceCheckUtils]: 42: Hoare triple {1089#false} assume true; {1089#false} is VALID [2018-11-23 12:58:46,271 INFO L268 TraceCheckUtils]: 43: Hoare quadruple {1089#false} {1088#true} #90#return; {1089#false} is VALID [2018-11-23 12:58:46,272 INFO L273 TraceCheckUtils]: 44: Hoare triple {1089#false} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1089#false} is VALID [2018-11-23 12:58:46,272 INFO L273 TraceCheckUtils]: 45: Hoare triple {1089#false} assume !(~i~0 < ~len~0); {1089#false} is VALID [2018-11-23 12:58:46,272 INFO L273 TraceCheckUtils]: 46: Hoare triple {1089#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1089#false} is VALID [2018-11-23 12:58:46,272 INFO L273 TraceCheckUtils]: 47: Hoare triple {1089#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {1089#false} is VALID [2018-11-23 12:58:46,272 INFO L273 TraceCheckUtils]: 48: Hoare triple {1089#false} assume !false; {1089#false} is VALID [2018-11-23 12:58:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 12:58:46,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:58:46,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 12:58:46,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-11-23 12:58:46,277 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:58:46,277 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 12:58:46,368 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:46,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 12:58:46,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:58:46,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:58:46,369 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 5 states. [2018-11-23 12:58:46,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:46,876 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2018-11-23 12:58:46,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 12:58:46,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-11-23 12:58:46,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:58:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 12:58:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2018-11-23 12:58:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 12:58:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2018-11-23 12:58:46,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 60 transitions. [2018-11-23 12:58:47,019 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:47,021 INFO L225 Difference]: With dead ends: 63 [2018-11-23 12:58:47,021 INFO L226 Difference]: Without dead ends: 45 [2018-11-23 12:58:47,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:58:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-23 12:58:47,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-23 12:58:47,117 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:58:47,117 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2018-11-23 12:58:47,118 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2018-11-23 12:58:47,118 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2018-11-23 12:58:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:47,121 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-23 12:58:47,121 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2018-11-23 12:58:47,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:47,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:47,122 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2018-11-23 12:58:47,122 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2018-11-23 12:58:47,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:47,125 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-23 12:58:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2018-11-23 12:58:47,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:47,126 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:47,126 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:58:47,127 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:58:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-23 12:58:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2018-11-23 12:58:47,129 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 49 [2018-11-23 12:58:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:58:47,130 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2018-11-23 12:58:47,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 12:58:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2018-11-23 12:58:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 12:58:47,132 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:58:47,132 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 12:58:47,132 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:58:47,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:58:47,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1516598607, now seen corresponding path program 1 times [2018-11-23 12:58:47,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:58:47,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:58:47,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:47,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:47,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:47,837 INFO L256 TraceCheckUtils]: 0: Hoare triple {1341#true} call ULTIMATE.init(); {1341#true} is VALID [2018-11-23 12:58:47,837 INFO L273 TraceCheckUtils]: 1: Hoare triple {1341#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1341#true} is VALID [2018-11-23 12:58:47,838 INFO L273 TraceCheckUtils]: 2: Hoare triple {1341#true} assume true; {1341#true} is VALID [2018-11-23 12:58:47,839 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1341#true} {1341#true} #96#return; {1341#true} is VALID [2018-11-23 12:58:47,839 INFO L256 TraceCheckUtils]: 4: Hoare triple {1341#true} call #t~ret18 := main(); {1341#true} is VALID [2018-11-23 12:58:47,839 INFO L273 TraceCheckUtils]: 5: Hoare triple {1341#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1341#true} is VALID [2018-11-23 12:58:47,840 INFO L256 TraceCheckUtils]: 6: Hoare triple {1341#true} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {1341#true} is VALID [2018-11-23 12:58:47,840 INFO L273 TraceCheckUtils]: 7: Hoare triple {1341#true} ~len := #in~len;~data := #in~data; {1341#true} is VALID [2018-11-23 12:58:47,840 INFO L256 TraceCheckUtils]: 8: Hoare triple {1341#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1341#true} is VALID [2018-11-23 12:58:47,842 INFO L273 TraceCheckUtils]: 9: Hoare triple {1341#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1343#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:58:47,842 INFO L273 TraceCheckUtils]: 10: Hoare triple {1343#(= (select |#valid| node_create_~temp~0.base) 1)} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1343#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:58:47,843 INFO L273 TraceCheckUtils]: 11: Hoare triple {1343#(= (select |#valid| node_create_~temp~0.base) 1)} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1344#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:58:47,843 INFO L273 TraceCheckUtils]: 12: Hoare triple {1344#(= (select |#valid| |node_create_#res.base|) 1)} assume true; {1344#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:58:47,844 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1344#(= (select |#valid| |node_create_#res.base|) 1)} {1341#true} #92#return; {1345#(= (select |#valid| |sll_circular_create_#t~ret3.base|) 1)} is VALID [2018-11-23 12:58:47,845 INFO L273 TraceCheckUtils]: 14: Hoare triple {1345#(= (select |#valid| |sll_circular_create_#t~ret3.base|) 1)} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:58:47,846 INFO L273 TraceCheckUtils]: 15: Hoare triple {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} assume !!(~len > 1); {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:58:47,847 INFO L256 TraceCheckUtils]: 16: Hoare triple {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1347#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:58:47,848 INFO L273 TraceCheckUtils]: 17: Hoare triple {1347#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:58:47,849 INFO L273 TraceCheckUtils]: 18: Hoare triple {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:58:47,850 INFO L273 TraceCheckUtils]: 19: Hoare triple {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:58:47,852 INFO L273 TraceCheckUtils]: 20: Hoare triple {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} assume true; {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:58:47,854 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} #94#return; {1350#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (not (= sll_circular_create_~last~0.base |sll_circular_create_#t~ret4.base|)))} is VALID [2018-11-23 12:58:47,855 INFO L273 TraceCheckUtils]: 22: Hoare triple {1350#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (not (= sll_circular_create_~last~0.base |sll_circular_create_#t~ret4.base|)))} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1351#(not (= sll_circular_create_~head~0.base (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} is VALID [2018-11-23 12:58:47,856 INFO L273 TraceCheckUtils]: 23: Hoare triple {1351#(not (= sll_circular_create_~head~0.base (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} assume !(~len > 1); {1351#(not (= sll_circular_create_~head~0.base (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} is VALID [2018-11-23 12:58:47,858 INFO L273 TraceCheckUtils]: 24: Hoare triple {1351#(not (= sll_circular_create_~head~0.base (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1352#(not (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:58:47,862 INFO L273 TraceCheckUtils]: 25: Hoare triple {1352#(not (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} assume true; {1352#(not (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:58:47,866 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {1352#(not (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} {1341#true} #88#return; {1353#(not (= |main_#t~ret15.base| (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|)))} is VALID [2018-11-23 12:58:47,872 INFO L273 TraceCheckUtils]: 27: Hoare triple {1353#(not (= |main_#t~ret15.base| (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|)))} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {1354#(not (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} is VALID [2018-11-23 12:58:47,874 INFO L273 TraceCheckUtils]: 28: Hoare triple {1354#(not (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} assume !!(~i~0 < ~len~0); {1354#(not (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} is VALID [2018-11-23 12:58:47,874 INFO L256 TraceCheckUtils]: 29: Hoare triple {1354#(not (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1355#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:58:47,876 INFO L273 TraceCheckUtils]: 30: Hoare triple {1355#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1356#(and (= |sll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:47,877 INFO L273 TraceCheckUtils]: 31: Hoare triple {1356#(and (= |sll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} assume ~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset;havoc #t~mem8.base, #t~mem8.offset;call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem9.base, #t~mem9.offset);havoc #t~mem9.base, #t~mem9.offset;call write~$Pointer$(0, 0, ~head.base, ~head.offset, 4); {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:47,878 INFO L273 TraceCheckUtils]: 32: Hoare triple {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} assume true; {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:47,880 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} {1354#(not (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} #90#return; {1342#false} is VALID [2018-11-23 12:58:47,880 INFO L273 TraceCheckUtils]: 34: Hoare triple {1342#false} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1342#false} is VALID [2018-11-23 12:58:47,880 INFO L273 TraceCheckUtils]: 35: Hoare triple {1342#false} assume !!(~i~0 < ~len~0); {1342#false} is VALID [2018-11-23 12:58:47,881 INFO L256 TraceCheckUtils]: 36: Hoare triple {1342#false} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1341#true} is VALID [2018-11-23 12:58:47,881 INFO L273 TraceCheckUtils]: 37: Hoare triple {1341#true} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1341#true} is VALID [2018-11-23 12:58:47,881 INFO L273 TraceCheckUtils]: 38: Hoare triple {1341#true} assume !(~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset);havoc #t~mem8.base, #t~mem8.offset;call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~head.base, ~head.offset, 4);~last~1.base, ~last~1.offset := #t~mem10.base, #t~mem10.offset;havoc #t~mem10.base, #t~mem10.offset; {1341#true} is VALID [2018-11-23 12:58:47,881 INFO L273 TraceCheckUtils]: 39: Hoare triple {1341#true} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1341#true} is VALID [2018-11-23 12:58:47,882 INFO L273 TraceCheckUtils]: 40: Hoare triple {1341#true} assume !!(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset;call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);~last~1.base, ~last~1.offset := #t~mem13.base, #t~mem13.offset;havoc #t~mem13.base, #t~mem13.offset; {1341#true} is VALID [2018-11-23 12:58:47,882 INFO L273 TraceCheckUtils]: 41: Hoare triple {1341#true} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1341#true} is VALID [2018-11-23 12:58:47,882 INFO L273 TraceCheckUtils]: 42: Hoare triple {1341#true} assume !(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset; {1341#true} is VALID [2018-11-23 12:58:47,882 INFO L273 TraceCheckUtils]: 43: Hoare triple {1341#true} call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem14.base, #t~mem14.offset);havoc #t~mem14.base, #t~mem14.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1341#true} is VALID [2018-11-23 12:58:47,883 INFO L273 TraceCheckUtils]: 44: Hoare triple {1341#true} assume true; {1341#true} is VALID [2018-11-23 12:58:47,883 INFO L268 TraceCheckUtils]: 45: Hoare quadruple {1341#true} {1342#false} #90#return; {1342#false} is VALID [2018-11-23 12:58:47,883 INFO L273 TraceCheckUtils]: 46: Hoare triple {1342#false} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1342#false} is VALID [2018-11-23 12:58:47,883 INFO L273 TraceCheckUtils]: 47: Hoare triple {1342#false} assume !(~i~0 < ~len~0); {1342#false} is VALID [2018-11-23 12:58:47,883 INFO L273 TraceCheckUtils]: 48: Hoare triple {1342#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1342#false} is VALID [2018-11-23 12:58:47,884 INFO L273 TraceCheckUtils]: 49: Hoare triple {1342#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {1342#false} is VALID [2018-11-23 12:58:47,884 INFO L273 TraceCheckUtils]: 50: Hoare triple {1342#false} assume !false; {1342#false} is VALID [2018-11-23 12:58:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 12:58:47,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:58:47,887 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:58:47,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:47,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:58:48,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 12:58:48,144 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,148 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-23 12:58:48,150 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 12:58:48,150 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#valid_27|]. (= |#valid| (store |v_#valid_27| node_create_~temp~0.base 1)) [2018-11-23 12:58:48,150 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (= (select |#valid| node_create_~temp~0.base) 1) [2018-11-23 12:58:48,217 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:58:48,218 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:58:48,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 12:58:48,222 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,228 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-11-23 12:58:48,379 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 12:58:48,427 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 12:58:48,439 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,449 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,449 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:16, output treesize:12 [2018-11-23 12:58:48,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-11-23 12:58:48,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 12:58:48,565 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,571 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:58:48,577 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 12:58:48,577 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:20 [2018-11-23 12:58:48,582 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 12:58:48,583 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_$Pointer$.base_30|, sll_circular_create_~last~0.offset]. (let ((.cse0 (select (select |v_#memory_$Pointer$.base_30| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|))) (and (not (= |sll_circular_create_#res.base| .cse0)) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_30| .cse0 (store (select |v_#memory_$Pointer$.base_30| .cse0) sll_circular_create_~last~0.offset |sll_circular_create_#res.base|))))) [2018-11-23 12:58:48,583 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ [sll_circular_create_~last~0.offset]. (let ((.cse0 (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|))) (and (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| .cse0) sll_circular_create_~last~0.offset)) (not (= .cse0 |sll_circular_create_#res.base|)))) [2018-11-23 12:58:48,878 INFO L256 TraceCheckUtils]: 0: Hoare triple {1341#true} call ULTIMATE.init(); {1341#true} is VALID [2018-11-23 12:58:48,878 INFO L273 TraceCheckUtils]: 1: Hoare triple {1341#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1341#true} is VALID [2018-11-23 12:58:48,878 INFO L273 TraceCheckUtils]: 2: Hoare triple {1341#true} assume true; {1341#true} is VALID [2018-11-23 12:58:48,878 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1341#true} {1341#true} #96#return; {1341#true} is VALID [2018-11-23 12:58:48,878 INFO L256 TraceCheckUtils]: 4: Hoare triple {1341#true} call #t~ret18 := main(); {1341#true} is VALID [2018-11-23 12:58:48,879 INFO L273 TraceCheckUtils]: 5: Hoare triple {1341#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1376#(= |main_~#s~0.offset| 0)} is VALID [2018-11-23 12:58:48,879 INFO L256 TraceCheckUtils]: 6: Hoare triple {1376#(= |main_~#s~0.offset| 0)} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {1341#true} is VALID [2018-11-23 12:58:48,879 INFO L273 TraceCheckUtils]: 7: Hoare triple {1341#true} ~len := #in~len;~data := #in~data; {1341#true} is VALID [2018-11-23 12:58:48,879 INFO L256 TraceCheckUtils]: 8: Hoare triple {1341#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1341#true} is VALID [2018-11-23 12:58:48,880 INFO L273 TraceCheckUtils]: 9: Hoare triple {1341#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1343#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:58:48,881 INFO L273 TraceCheckUtils]: 10: Hoare triple {1343#(= (select |#valid| node_create_~temp~0.base) 1)} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1343#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:58:48,881 INFO L273 TraceCheckUtils]: 11: Hoare triple {1343#(= (select |#valid| node_create_~temp~0.base) 1)} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1344#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:58:48,882 INFO L273 TraceCheckUtils]: 12: Hoare triple {1344#(= (select |#valid| |node_create_#res.base|) 1)} assume true; {1344#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:58:48,882 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1344#(= (select |#valid| |node_create_#res.base|) 1)} {1341#true} #92#return; {1345#(= (select |#valid| |sll_circular_create_#t~ret3.base|) 1)} is VALID [2018-11-23 12:58:48,883 INFO L273 TraceCheckUtils]: 14: Hoare triple {1345#(= (select |#valid| |sll_circular_create_#t~ret3.base|) 1)} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:58:48,884 INFO L273 TraceCheckUtils]: 15: Hoare triple {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} assume !!(~len > 1); {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:58:48,885 INFO L256 TraceCheckUtils]: 16: Hoare triple {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1347#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:58:48,886 INFO L273 TraceCheckUtils]: 17: Hoare triple {1347#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:58:48,887 INFO L273 TraceCheckUtils]: 18: Hoare triple {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:58:48,888 INFO L273 TraceCheckUtils]: 19: Hoare triple {1348#(= 0 (select |old(#valid)| node_create_~temp~0.base))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:58:48,888 INFO L273 TraceCheckUtils]: 20: Hoare triple {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} assume true; {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:58:48,891 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1349#(= 0 (select |old(#valid)| |node_create_#res.base|))} {1346#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (= (select |#valid| sll_circular_create_~last~0.base) 1))} #94#return; {1350#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (not (= sll_circular_create_~last~0.base |sll_circular_create_#t~ret4.base|)))} is VALID [2018-11-23 12:58:48,893 INFO L273 TraceCheckUtils]: 22: Hoare triple {1350#(and (= sll_circular_create_~last~0.base sll_circular_create_~head~0.base) (not (= sll_circular_create_~last~0.base |sll_circular_create_#t~ret4.base|)))} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1428#(and (not (= sll_circular_create_~head~0.base sll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset) sll_circular_create_~last~0.base))} is VALID [2018-11-23 12:58:48,894 INFO L273 TraceCheckUtils]: 23: Hoare triple {1428#(and (not (= sll_circular_create_~head~0.base sll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset) sll_circular_create_~last~0.base))} assume !(~len > 1); {1428#(and (not (= sll_circular_create_~head~0.base sll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset) sll_circular_create_~last~0.base))} is VALID [2018-11-23 12:58:48,895 INFO L273 TraceCheckUtils]: 24: Hoare triple {1428#(and (not (= sll_circular_create_~head~0.base sll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset) sll_circular_create_~last~0.base))} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1435#(and (exists ((sll_circular_create_~last~0.offset Int)) (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)) sll_circular_create_~last~0.offset))) (not (= (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|) |sll_circular_create_#res.base|)))} is VALID [2018-11-23 12:58:48,896 INFO L273 TraceCheckUtils]: 25: Hoare triple {1435#(and (exists ((sll_circular_create_~last~0.offset Int)) (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)) sll_circular_create_~last~0.offset))) (not (= (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|) |sll_circular_create_#res.base|)))} assume true; {1435#(and (exists ((sll_circular_create_~last~0.offset Int)) (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)) sll_circular_create_~last~0.offset))) (not (= (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|) |sll_circular_create_#res.base|)))} is VALID [2018-11-23 12:58:48,899 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {1435#(and (exists ((sll_circular_create_~last~0.offset Int)) (= |sll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)) sll_circular_create_~last~0.offset))) (not (= (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|) |sll_circular_create_#res.base|)))} {1376#(= |main_~#s~0.offset| 0)} #88#return; {1442#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|) |main_#t~ret15.base|)) (exists ((sll_circular_create_~last~0.offset Int)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|)) sll_circular_create_~last~0.offset) |main_#t~ret15.base|)) (= |main_~#s~0.offset| 0))} is VALID [2018-11-23 12:58:48,900 INFO L273 TraceCheckUtils]: 27: Hoare triple {1442#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|) |main_#t~ret15.base|)) (exists ((sll_circular_create_~last~0.offset Int)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|)) sll_circular_create_~last~0.offset) |main_#t~ret15.base|)) (= |main_~#s~0.offset| 0))} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {1446#(and (= |main_~#s~0.offset| 0) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (exists ((sll_circular_create_~last~0.offset Int)) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))) sll_circular_create_~last~0.offset))))} is VALID [2018-11-23 12:58:48,901 INFO L273 TraceCheckUtils]: 28: Hoare triple {1446#(and (= |main_~#s~0.offset| 0) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (exists ((sll_circular_create_~last~0.offset Int)) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))) sll_circular_create_~last~0.offset))))} assume !!(~i~0 < ~len~0); {1446#(and (= |main_~#s~0.offset| 0) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (exists ((sll_circular_create_~last~0.offset Int)) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))) sll_circular_create_~last~0.offset))))} is VALID [2018-11-23 12:58:48,902 INFO L256 TraceCheckUtils]: 29: Hoare triple {1446#(and (= |main_~#s~0.offset| 0) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (exists ((sll_circular_create_~last~0.offset Int)) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))) sll_circular_create_~last~0.offset))))} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1355#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:58:48,903 INFO L273 TraceCheckUtils]: 30: Hoare triple {1355#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1456#(and (= |sll_circular_remove_first_#t~mem8.base| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) sll_circular_remove_first_~temp~1.base))} is VALID [2018-11-23 12:58:48,904 INFO L273 TraceCheckUtils]: 31: Hoare triple {1456#(and (= |sll_circular_remove_first_#t~mem8.base| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) sll_circular_remove_first_~temp~1.base))} assume ~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset;havoc #t~mem8.base, #t~mem8.offset;call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem9.base, #t~mem9.offset);havoc #t~mem9.base, #t~mem9.offset;call write~$Pointer$(0, 0, ~head.base, ~head.offset, 4); {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:48,906 INFO L273 TraceCheckUtils]: 32: Hoare triple {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} assume true; {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:48,926 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {1357#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))} {1446#(and (= |main_~#s~0.offset| 0) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (exists ((sll_circular_create_~last~0.offset Int)) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))) sll_circular_create_~last~0.offset))))} #90#return; {1342#false} is VALID [2018-11-23 12:58:48,926 INFO L273 TraceCheckUtils]: 34: Hoare triple {1342#false} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1342#false} is VALID [2018-11-23 12:58:48,926 INFO L273 TraceCheckUtils]: 35: Hoare triple {1342#false} assume !!(~i~0 < ~len~0); {1342#false} is VALID [2018-11-23 12:58:48,927 INFO L256 TraceCheckUtils]: 36: Hoare triple {1342#false} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1342#false} is VALID [2018-11-23 12:58:48,927 INFO L273 TraceCheckUtils]: 37: Hoare triple {1342#false} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1342#false} is VALID [2018-11-23 12:58:48,927 INFO L273 TraceCheckUtils]: 38: Hoare triple {1342#false} assume !(~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset);havoc #t~mem8.base, #t~mem8.offset;call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~head.base, ~head.offset, 4);~last~1.base, ~last~1.offset := #t~mem10.base, #t~mem10.offset;havoc #t~mem10.base, #t~mem10.offset; {1342#false} is VALID [2018-11-23 12:58:48,927 INFO L273 TraceCheckUtils]: 39: Hoare triple {1342#false} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1342#false} is VALID [2018-11-23 12:58:48,928 INFO L273 TraceCheckUtils]: 40: Hoare triple {1342#false} assume !!(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset;call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);~last~1.base, ~last~1.offset := #t~mem13.base, #t~mem13.offset;havoc #t~mem13.base, #t~mem13.offset; {1342#false} is VALID [2018-11-23 12:58:48,928 INFO L273 TraceCheckUtils]: 41: Hoare triple {1342#false} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1342#false} is VALID [2018-11-23 12:58:48,928 INFO L273 TraceCheckUtils]: 42: Hoare triple {1342#false} assume !(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset; {1342#false} is VALID [2018-11-23 12:58:48,928 INFO L273 TraceCheckUtils]: 43: Hoare triple {1342#false} call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem14.base, #t~mem14.offset);havoc #t~mem14.base, #t~mem14.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1342#false} is VALID [2018-11-23 12:58:48,928 INFO L273 TraceCheckUtils]: 44: Hoare triple {1342#false} assume true; {1342#false} is VALID [2018-11-23 12:58:48,929 INFO L268 TraceCheckUtils]: 45: Hoare quadruple {1342#false} {1342#false} #90#return; {1342#false} is VALID [2018-11-23 12:58:48,929 INFO L273 TraceCheckUtils]: 46: Hoare triple {1342#false} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1342#false} is VALID [2018-11-23 12:58:48,929 INFO L273 TraceCheckUtils]: 47: Hoare triple {1342#false} assume !(~i~0 < ~len~0); {1342#false} is VALID [2018-11-23 12:58:48,929 INFO L273 TraceCheckUtils]: 48: Hoare triple {1342#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1342#false} is VALID [2018-11-23 12:58:48,929 INFO L273 TraceCheckUtils]: 49: Hoare triple {1342#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {1342#false} is VALID [2018-11-23 12:58:48,930 INFO L273 TraceCheckUtils]: 50: Hoare triple {1342#false} assume !false; {1342#false} is VALID [2018-11-23 12:58:48,935 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 12:58:48,961 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:58:48,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 23 [2018-11-23 12:58:48,962 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 51 [2018-11-23 12:58:48,963 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:58:48,963 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2018-11-23 12:58:49,069 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:49,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-23 12:58:49,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-23 12:58:49,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2018-11-23 12:58:49,070 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 23 states. [2018-11-23 12:58:51,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:51,414 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2018-11-23 12:58:51,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-23 12:58:51,414 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 51 [2018-11-23 12:58:51,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:58:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 12:58:51,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 74 transitions. [2018-11-23 12:58:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 12:58:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 74 transitions. [2018-11-23 12:58:51,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 74 transitions. [2018-11-23 12:58:51,525 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:58:51,530 INFO L225 Difference]: With dead ends: 75 [2018-11-23 12:58:51,530 INFO L226 Difference]: Without dead ends: 55 [2018-11-23 12:58:51,531 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2018-11-23 12:58:51,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-23 12:58:51,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2018-11-23 12:58:51,599 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:58:51,599 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 54 states. [2018-11-23 12:58:51,599 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 54 states. [2018-11-23 12:58:51,599 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 54 states. [2018-11-23 12:58:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:51,603 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-23 12:58:51,603 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2018-11-23 12:58:51,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:51,604 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:51,604 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 55 states. [2018-11-23 12:58:51,604 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 55 states. [2018-11-23 12:58:51,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:58:51,607 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-23 12:58:51,607 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2018-11-23 12:58:51,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:58:51,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:58:51,608 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:58:51,608 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:58:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-23 12:58:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2018-11-23 12:58:51,611 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 51 [2018-11-23 12:58:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:58:51,611 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2018-11-23 12:58:51,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-23 12:58:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2018-11-23 12:58:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-23 12:58:51,613 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:58:51,613 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 12:58:51,613 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:58:51,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:58:51,614 INFO L82 PathProgramCache]: Analyzing trace with hash -280247633, now seen corresponding path program 1 times [2018-11-23 12:58:51,614 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:58:51,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:58:51,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:51,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:51,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:58:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:52,698 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 33 [2018-11-23 12:58:53,413 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2018-11-23 12:58:53,684 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2018-11-23 12:58:53,775 INFO L256 TraceCheckUtils]: 0: Hoare triple {1824#true} call ULTIMATE.init(); {1824#true} is VALID [2018-11-23 12:58:53,776 INFO L273 TraceCheckUtils]: 1: Hoare triple {1824#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1824#true} is VALID [2018-11-23 12:58:53,776 INFO L273 TraceCheckUtils]: 2: Hoare triple {1824#true} assume true; {1824#true} is VALID [2018-11-23 12:58:53,777 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1824#true} {1824#true} #96#return; {1824#true} is VALID [2018-11-23 12:58:53,777 INFO L256 TraceCheckUtils]: 4: Hoare triple {1824#true} call #t~ret18 := main(); {1824#true} is VALID [2018-11-23 12:58:53,778 INFO L273 TraceCheckUtils]: 5: Hoare triple {1824#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1826#(= (select |#valid| |main_~#s~0.base|) 1)} is VALID [2018-11-23 12:58:53,780 INFO L256 TraceCheckUtils]: 6: Hoare triple {1826#(= (select |#valid| |main_~#s~0.base|) 1)} call #t~ret15.base, #t~ret15.offset := sll_circular_create(~len~0, ~data~0); {1827#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:58:53,780 INFO L273 TraceCheckUtils]: 7: Hoare triple {1827#(= |#valid| |old(#valid)|)} ~len := #in~len;~data := #in~data; {1827#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:58:53,781 INFO L256 TraceCheckUtils]: 8: Hoare triple {1827#(= |#valid| |old(#valid)|)} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1827#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:58:53,783 INFO L273 TraceCheckUtils]: 9: Hoare triple {1827#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1828#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)))} is VALID [2018-11-23 12:58:53,784 INFO L273 TraceCheckUtils]: 10: Hoare triple {1828#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1828#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)))} is VALID [2018-11-23 12:58:53,785 INFO L273 TraceCheckUtils]: 11: Hoare triple {1828#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1829#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)))} is VALID [2018-11-23 12:58:53,786 INFO L273 TraceCheckUtils]: 12: Hoare triple {1829#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)))} assume true; {1829#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)))} is VALID [2018-11-23 12:58:53,788 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1829#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)))} {1827#(= |#valid| |old(#valid)|)} #92#return; {1830#(and (= 0 (select |old(#valid)| |sll_circular_create_#t~ret3.base|)) (= (select |#valid| |sll_circular_create_#t~ret3.base|) 1))} is VALID [2018-11-23 12:58:53,789 INFO L273 TraceCheckUtils]: 14: Hoare triple {1830#(and (= 0 (select |old(#valid)| |sll_circular_create_#t~ret3.base|)) (= (select |#valid| |sll_circular_create_#t~ret3.base|) 1))} ~head~0.base, ~head~0.offset := #t~ret3.base, #t~ret3.offset;havoc #t~ret3.base, #t~ret3.offset;~last~0.base, ~last~0.offset := ~head~0.base, ~head~0.offset; {1831#(and (= 0 (select |old(#valid)| sll_circular_create_~head~0.base)) (= (select |#valid| sll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:58:53,790 INFO L273 TraceCheckUtils]: 15: Hoare triple {1831#(and (= 0 (select |old(#valid)| sll_circular_create_~head~0.base)) (= (select |#valid| sll_circular_create_~last~0.base) 1))} assume !!(~len > 1); {1831#(and (= 0 (select |old(#valid)| sll_circular_create_~head~0.base)) (= (select |#valid| sll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:58:53,791 INFO L256 TraceCheckUtils]: 16: Hoare triple {1831#(and (= 0 (select |old(#valid)| sll_circular_create_~head~0.base)) (= (select |#valid| sll_circular_create_~last~0.base) 1))} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1827#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:58:53,793 INFO L273 TraceCheckUtils]: 17: Hoare triple {1827#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1832#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:58:53,793 INFO L273 TraceCheckUtils]: 18: Hoare triple {1832#(= 0 (select |old(#valid)| node_create_~temp~0.base))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1832#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:58:53,795 INFO L273 TraceCheckUtils]: 19: Hoare triple {1832#(= 0 (select |old(#valid)| node_create_~temp~0.base))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 4 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1833#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:58:53,795 INFO L273 TraceCheckUtils]: 20: Hoare triple {1833#(= 0 (select |old(#valid)| |node_create_#res.base|))} assume true; {1833#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:58:53,797 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1833#(= 0 (select |old(#valid)| |node_create_#res.base|))} {1831#(and (= 0 (select |old(#valid)| sll_circular_create_~head~0.base)) (= (select |#valid| sll_circular_create_~last~0.base) 1))} #94#return; {1834#(and (= 0 (select |old(#valid)| sll_circular_create_~head~0.base)) (not (= sll_circular_create_~last~0.base |sll_circular_create_#t~ret4.base|)))} is VALID [2018-11-23 12:58:53,799 INFO L273 TraceCheckUtils]: 22: Hoare triple {1834#(and (= 0 (select |old(#valid)| sll_circular_create_~head~0.base)) (not (= sll_circular_create_~last~0.base |sll_circular_create_#t~ret4.base|)))} ~new_head~0.base, ~new_head~0.offset := #t~ret4.base, #t~ret4.offset;havoc #t~ret4.base, #t~ret4.offset;call write~$Pointer$(~head~0.base, ~head~0.offset, ~new_head~0.base, ~new_head~0.offset, 4);~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1835#(= 0 (select |old(#valid)| (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} is VALID [2018-11-23 12:58:53,802 INFO L273 TraceCheckUtils]: 23: Hoare triple {1835#(= 0 (select |old(#valid)| (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} assume !(~len > 1); {1835#(= 0 (select |old(#valid)| (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} is VALID [2018-11-23 12:58:53,804 INFO L273 TraceCheckUtils]: 24: Hoare triple {1835#(= 0 (select |old(#valid)| (select (select (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)) sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset)))} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1836#(= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:58:53,805 INFO L273 TraceCheckUtils]: 25: Hoare triple {1836#(= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} assume true; {1836#(= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:58:53,807 INFO L268 TraceCheckUtils]: 26: Hoare quadruple {1836#(= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |sll_circular_create_#res.base|) |sll_circular_create_#res.offset|)))} {1826#(= (select |#valid| |main_~#s~0.base|) 1)} #88#return; {1837#(not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|)))} is VALID [2018-11-23 12:58:53,808 INFO L273 TraceCheckUtils]: 27: Hoare triple {1837#(not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_#t~ret15.base|) |main_#t~ret15.offset|)))} call write~init~$Pointer$(#t~ret15.base, #t~ret15.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret15.base, #t~ret15.offset;~i~0 := 0; {1838#(not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} is VALID [2018-11-23 12:58:53,809 INFO L273 TraceCheckUtils]: 28: Hoare triple {1838#(not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} assume !!(~i~0 < ~len~0); {1838#(not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} is VALID [2018-11-23 12:58:53,810 INFO L256 TraceCheckUtils]: 29: Hoare triple {1838#(not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1839#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:58:53,812 INFO L273 TraceCheckUtils]: 30: Hoare triple {1839#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1840#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:53,814 INFO L273 TraceCheckUtils]: 31: Hoare triple {1840#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} assume !(~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset);havoc #t~mem8.base, #t~mem8.offset;call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~head.base, ~head.offset, 4);~last~1.base, ~last~1.offset := #t~mem10.base, #t~mem10.offset;havoc #t~mem10.base, #t~mem10.offset; {1841#(and (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) sll_circular_remove_first_~temp~1.offset) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= sll_circular_remove_first_~last~1.offset (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base))} is VALID [2018-11-23 12:58:53,815 INFO L273 TraceCheckUtils]: 32: Hoare triple {1841#(and (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) sll_circular_remove_first_~temp~1.offset) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= sll_circular_remove_first_~last~1.offset (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base))} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1841#(and (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) sll_circular_remove_first_~temp~1.offset) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= sll_circular_remove_first_~last~1.offset (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base))} is VALID [2018-11-23 12:58:53,817 INFO L273 TraceCheckUtils]: 33: Hoare triple {1841#(and (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) sll_circular_remove_first_~temp~1.offset) (= (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select |#memory_$Pointer$.offset| sll_circular_remove_first_~last~1.base)) (= sll_circular_remove_first_~last~1.offset (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base))} assume !!(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset;call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);~last~1.base, ~last~1.offset := #t~mem13.base, #t~mem13.offset;havoc #t~mem13.base, #t~mem13.offset; {1842#(and (= sll_circular_remove_first_~last~1.base sll_circular_remove_first_~temp~1.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~last~1.offset sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:53,819 INFO L273 TraceCheckUtils]: 34: Hoare triple {1842#(and (= sll_circular_remove_first_~last~1.base sll_circular_remove_first_~temp~1.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~last~1.offset sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1842#(and (= sll_circular_remove_first_~last~1.base sll_circular_remove_first_~temp~1.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~last~1.offset sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:53,820 INFO L273 TraceCheckUtils]: 35: Hoare triple {1842#(and (= sll_circular_remove_first_~last~1.base sll_circular_remove_first_~temp~1.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~last~1.offset sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} assume !(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset; {1842#(and (= sll_circular_remove_first_~last~1.base sll_circular_remove_first_~temp~1.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~last~1.offset sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:53,823 INFO L273 TraceCheckUtils]: 36: Hoare triple {1842#(and (= sll_circular_remove_first_~last~1.base sll_circular_remove_first_~temp~1.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~last~1.offset sll_circular_remove_first_~temp~1.offset) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem14.base, #t~mem14.offset);havoc #t~mem14.base, #t~mem14.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1843#(and (or (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (or (= (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))))} is VALID [2018-11-23 12:58:53,824 INFO L273 TraceCheckUtils]: 37: Hoare triple {1843#(and (or (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (or (= (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))))} assume true; {1843#(and (or (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (or (= (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))))} is VALID [2018-11-23 12:58:53,827 INFO L268 TraceCheckUtils]: 38: Hoare quadruple {1843#(and (or (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (or (= (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.offset| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|))))} {1838#(not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))))} #90#return; {1844#(and (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)))} is VALID [2018-11-23 12:58:53,828 INFO L273 TraceCheckUtils]: 39: Hoare triple {1844#(and (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)))} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1844#(and (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)))} is VALID [2018-11-23 12:58:53,829 INFO L273 TraceCheckUtils]: 40: Hoare triple {1844#(and (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)))} assume !!(~i~0 < ~len~0); {1844#(and (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)))} is VALID [2018-11-23 12:58:53,831 INFO L256 TraceCheckUtils]: 41: Hoare triple {1844#(and (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)))} call sll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1839#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:58:53,833 INFO L273 TraceCheckUtils]: 42: Hoare triple {1839#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~head.base, ~head.offset := #in~head.base, #in~head.offset;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~head.base, ~head.offset, 4);call #t~mem7.base, #t~mem7.offset := read~$Pointer$(#t~mem6.base, #t~mem6.offset, 4);~temp~1.base, ~temp~1.offset := #t~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;havoc #t~mem7.base, #t~mem7.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1845#(and (= |sll_circular_remove_first_#t~mem8.offset| (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#t~mem8.base|) (= sll_circular_remove_first_~temp~1.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:53,835 INFO L273 TraceCheckUtils]: 43: Hoare triple {1845#(and (= |sll_circular_remove_first_#t~mem8.offset| (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#t~mem8.base|) (= sll_circular_remove_first_~temp~1.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) sll_circular_remove_first_~temp~1.base) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} assume !(~temp~1.base == #t~mem8.base && ~temp~1.offset == #t~mem8.offset);havoc #t~mem8.base, #t~mem8.offset;call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~head.base, ~head.offset, 4);~last~1.base, ~last~1.offset := #t~mem10.base, #t~mem10.offset;havoc #t~mem10.base, #t~mem10.offset; {1846#(and (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))))) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:53,836 INFO L273 TraceCheckUtils]: 44: Hoare triple {1846#(and (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))))) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1846#(and (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))))) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:58:53,838 INFO L273 TraceCheckUtils]: 45: Hoare triple {1846#(and (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) sll_circular_remove_first_~last~1.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))))) (= (select |#memory_$Pointer$.base| sll_circular_remove_first_~last~1.base) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))} assume !!(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset;call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);~last~1.base, ~last~1.offset := #t~mem13.base, #t~mem13.offset;havoc #t~mem13.base, #t~mem13.offset; {1847#(and (or (not (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))) (or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= |sll_circular_remove_first_#in~head.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)))} is VALID [2018-11-23 12:58:53,842 INFO L273 TraceCheckUtils]: 46: Hoare triple {1847#(and (or (not (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))) (or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= |sll_circular_remove_first_#in~head.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)))} call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1847#(and (or (not (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))) (or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= |sll_circular_remove_first_#in~head.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)))} is VALID [2018-11-23 12:58:53,843 INFO L273 TraceCheckUtils]: 47: Hoare triple {1847#(and (or (not (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))) (or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= |sll_circular_remove_first_#in~head.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)))} assume !(#t~mem11.base != #t~mem12.base || #t~mem11.offset != #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;havoc #t~mem11.base, #t~mem11.offset; {1847#(and (or (not (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))) (or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= |sll_circular_remove_first_#in~head.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)))} is VALID [2018-11-23 12:58:53,845 INFO L273 TraceCheckUtils]: 48: Hoare triple {1847#(and (or (not (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) |sll_circular_remove_first_#in~head.base|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|))) (or (and (not (= (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (not (= |sll_circular_remove_first_#in~head.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (and (not (= (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| sll_circular_remove_first_~head.base) sll_circular_remove_first_~head.offset)))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_remove_first_~head.base |sll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= sll_circular_remove_first_~head.offset |sll_circular_remove_first_#in~head.offset|)) (= sll_circular_remove_first_~head.base sll_circular_remove_first_~last~1.base)))} call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem14.base, #t~mem14.offset);havoc #t~mem14.base, #t~mem14.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1848#(or (not (= (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|))} is VALID [2018-11-23 12:58:53,846 INFO L273 TraceCheckUtils]: 49: Hoare triple {1848#(or (not (= (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|))} assume true; {1848#(or (not (= (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|))} is VALID [2018-11-23 12:58:53,848 INFO L268 TraceCheckUtils]: 50: Hoare quadruple {1848#(or (not (= (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|)))) (= (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_first_#in~head.base|) |sll_circular_remove_first_#in~head.offset|) |sll_circular_remove_first_#in~head.base|))} {1844#(and (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)))} #90#return; {1825#false} is VALID [2018-11-23 12:58:53,848 INFO L273 TraceCheckUtils]: 51: Hoare triple {1825#false} #t~post16 := ~i~0;~i~0 := 1 + #t~post16;havoc #t~post16; {1825#false} is VALID [2018-11-23 12:58:53,849 INFO L273 TraceCheckUtils]: 52: Hoare triple {1825#false} assume !(~i~0 < ~len~0); {1825#false} is VALID [2018-11-23 12:58:53,849 INFO L273 TraceCheckUtils]: 53: Hoare triple {1825#false} call #t~mem17.base, #t~mem17.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1825#false} is VALID [2018-11-23 12:58:53,850 INFO L273 TraceCheckUtils]: 54: Hoare triple {1825#false} assume 0 != #t~mem17.base || 0 != #t~mem17.offset;havoc #t~mem17.base, #t~mem17.offset; {1825#false} is VALID [2018-11-23 12:58:53,850 INFO L273 TraceCheckUtils]: 55: Hoare triple {1825#false} assume !false; {1825#false} is VALID [2018-11-23 12:58:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 12:58:53,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:58:53,874 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:58:53,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:58:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:58:53,994 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:58:54,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 271 treesize of output 196 [2018-11-23 12:58:54,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 192 [2018-11-23 12:58:54,629 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 12:58:54,746 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 12:59:11,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 203 [2018-11-23 12:59:11,566 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 12:59:30,173 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 177 treesize of output 159 [2018-11-23 12:59:30,203 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 12:59:30,291 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 13:00:04,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 238 [2018-11-23 13:00:04,391 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 13:00:41,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 238 treesize of output 207 [2018-11-23 13:00:41,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 182 [2018-11-23 13:00:41,872 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:00:42,017 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:00:42,022 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 152 [2018-11-23 13:00:42,028 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:00:42,131 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 13:01:48,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 204 treesize of output 178 [2018-11-23 13:01:48,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 163 treesize of output 164 [2018-11-23 13:01:48,993 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:01:49,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 152 [2018-11-23 13:01:49,229 INFO L267 ElimStorePlain]: Start of recursive call 14: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 4 xjuncts. [2018-11-23 13:01:49,456 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts.