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/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 12:56:35,865 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:56:35,867 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:56:35,885 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:56:35,885 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:56:35,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:56:35,888 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:56:35,890 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:56:35,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:56:35,893 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:56:35,895 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:56:35,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:56:35,897 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:56:35,898 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:56:35,901 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:56:35,909 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:56:35,910 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:56:35,913 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:56:35,916 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:56:35,917 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:56:35,918 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:56:35,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:56:35,924 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-23 12:56:35,930 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:56:35,930 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:56:35,934 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:56:35,935 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:56:35,936 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 12:56:35,966 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:56:35,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:56:35,967 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:56:35,968 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:56:35,968 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:56:35,968 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:56:35,968 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:56:35,969 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:56:35,969 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:56:35,969 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:56:35,969 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:56:35,970 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:56:35,970 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:56:35,970 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:56:35,970 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:56:35,970 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:56:35,970 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:56:35,971 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:56:35,971 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:56:35,971 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:56:35,971 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:56:35,971 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:56:35,972 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:56:35,972 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:56:35,972 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:56:35,972 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:56:35,972 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:56:35,973 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:56:35,973 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:56:35,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:56:35,973 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:56:36,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:56:36,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:56:36,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:56:36,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:56:36,038 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:56:36,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 12:56:36,111 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bc22a98/476138a0be49440796c5a513756b7654/FLAGdabe073e7 [2018-11-23 12:56:36,637 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:56:36,638 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 12:56:36,653 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bc22a98/476138a0be49440796c5a513756b7654/FLAGdabe073e7 [2018-11-23 12:56:36,914 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bc22a98/476138a0be49440796c5a513756b7654 [2018-11-23 12:56:36,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:56:36,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:56:36,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:56:36,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:56:36,930 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:56:36,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:56:36" (1/1) ... [2018-11-23 12:56:36,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d21da5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:36, skipping insertion in model container [2018-11-23 12:56:36,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:56:36" (1/1) ... [2018-11-23 12:56:36,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:56:37,004 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:56:37,472 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:56:37,484 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:56:37,548 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:56:37,621 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:56:37,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37 WrapperNode [2018-11-23 12:56:37,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:56:37,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:56:37,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:56:37,623 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:56:37,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:56:37,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:56:37,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:56:37,734 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:56:37,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... [2018-11-23 12:56:37,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:56:37,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:56:37,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:56:37,782 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:56:37,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:56:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2018-11-23 12:56:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2018-11-23 12:56:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:56:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 12:56:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-23 12:56:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 12:56:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-23 12:56:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-23 12:56:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:56:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:56:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:56:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:56:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 12:56:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 12:56:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 12:56:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 12:56:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_remove_first [2018-11-23 12:56:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_remove_first [2018-11-23 12:56:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:56:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:56:38,788 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:56:38,791 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 12:56:38,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:56:38 BoogieIcfgContainer [2018-11-23 12:56:38,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:56:38,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:56:38,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:56:38,797 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:56:38,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:56:36" (1/3) ... [2018-11-23 12:56:38,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7735e4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:56:38, skipping insertion in model container [2018-11-23 12:56:38,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:37" (2/3) ... [2018-11-23 12:56:38,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7735e4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:56:38, skipping insertion in model container [2018-11-23 12:56:38,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:56:38" (3/3) ... [2018-11-23 12:56:38,802 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 12:56:38,813 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:56:38,824 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:56:38,843 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:56:38,877 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:56:38,877 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:56:38,878 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:56:38,878 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:56:38,878 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:56:38,879 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:56:38,879 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:56:38,879 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:56:38,879 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:56:38,899 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-23 12:56:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 12:56:38,907 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:56:38,908 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 12:56:38,911 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:56:38,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:56:38,918 INFO L82 PathProgramCache]: Analyzing trace with hash 455427356, now seen corresponding path program 1 times [2018-11-23 12:56:38,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:56:38,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:56:38,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:38,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:38,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:39,154 INFO L256 TraceCheckUtils]: 0: Hoare triple {45#true} call ULTIMATE.init(); {45#true} is VALID [2018-11-23 12:56:39,158 INFO L273 TraceCheckUtils]: 1: Hoare triple {45#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {45#true} is VALID [2018-11-23 12:56:39,159 INFO L273 TraceCheckUtils]: 2: Hoare triple {45#true} assume true; {45#true} is VALID [2018-11-23 12:56:39,159 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {45#true} {45#true} #89#return; {45#true} is VALID [2018-11-23 12:56:39,159 INFO L256 TraceCheckUtils]: 4: Hoare triple {45#true} call #t~ret16 := main(); {45#true} is VALID [2018-11-23 12:56:39,160 INFO L273 TraceCheckUtils]: 5: Hoare triple {45#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {45#true} is VALID [2018-11-23 12:56:39,160 INFO L256 TraceCheckUtils]: 6: Hoare triple {45#true} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {45#true} is VALID [2018-11-23 12:56:39,160 INFO L273 TraceCheckUtils]: 7: Hoare triple {45#true} ~len := #in~len;~data := #in~data; {45#true} is VALID [2018-11-23 12:56:39,161 INFO L256 TraceCheckUtils]: 8: Hoare triple {45#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {45#true} is VALID [2018-11-23 12:56:39,161 INFO L273 TraceCheckUtils]: 9: Hoare triple {45#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {45#true} is VALID [2018-11-23 12:56:39,161 INFO L273 TraceCheckUtils]: 10: Hoare triple {45#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {45#true} is VALID [2018-11-23 12:56:39,162 INFO L273 TraceCheckUtils]: 11: Hoare triple {45#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {45#true} is VALID [2018-11-23 12:56:39,162 INFO L273 TraceCheckUtils]: 12: Hoare triple {45#true} assume true; {45#true} is VALID [2018-11-23 12:56:39,163 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {45#true} {45#true} #85#return; {45#true} is VALID [2018-11-23 12:56:39,163 INFO L273 TraceCheckUtils]: 14: Hoare triple {45#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; {45#true} is VALID [2018-11-23 12:56:39,176 INFO L273 TraceCheckUtils]: 15: Hoare triple {45#true} assume !true; {46#false} is VALID [2018-11-23 12:56:39,177 INFO L273 TraceCheckUtils]: 16: Hoare triple {46#false} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {46#false} is VALID [2018-11-23 12:56:39,177 INFO L273 TraceCheckUtils]: 17: Hoare triple {46#false} assume true; {46#false} is VALID [2018-11-23 12:56:39,177 INFO L268 TraceCheckUtils]: 18: Hoare quadruple {46#false} {45#true} #81#return; {46#false} is VALID [2018-11-23 12:56:39,178 INFO L273 TraceCheckUtils]: 19: Hoare triple {46#false} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {46#false} is VALID [2018-11-23 12:56:39,178 INFO L273 TraceCheckUtils]: 20: Hoare triple {46#false} assume !(~i~0 < ~len~0); {46#false} is VALID [2018-11-23 12:56:39,178 INFO L273 TraceCheckUtils]: 21: Hoare triple {46#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {46#false} is VALID [2018-11-23 12:56:39,179 INFO L273 TraceCheckUtils]: 22: Hoare triple {46#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {46#false} is VALID [2018-11-23 12:56:39,179 INFO L273 TraceCheckUtils]: 23: Hoare triple {46#false} assume !false; {46#false} is VALID [2018-11-23 12:56:39,184 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 12:56:39,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:56:39,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 12:56:39,193 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-23 12:56:39,196 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:56:39,200 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 12:56:39,272 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 12:56:39,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 12:56:39,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 12:56:39,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 12:56:39,283 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-23 12:56:39,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:39,679 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2018-11-23 12:56:39,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 12:56:39,679 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-23 12:56:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:56:39,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 12:56:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2018-11-23 12:56:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 12:56:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2018-11-23 12:56:39,700 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 72 transitions. [2018-11-23 12:56:40,017 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:40,043 INFO L225 Difference]: With dead ends: 61 [2018-11-23 12:56:40,043 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 12:56:40,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 12:56:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 12:56:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-23 12:56:40,239 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:56:40,240 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2018-11-23 12:56:40,240 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2018-11-23 12:56:40,241 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2018-11-23 12:56:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:40,247 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2018-11-23 12:56:40,248 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-11-23 12:56:40,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:40,249 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:40,249 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2018-11-23 12:56:40,249 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2018-11-23 12:56:40,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:40,255 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2018-11-23 12:56:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-11-23 12:56:40,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:40,256 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:40,257 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:56:40,257 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:56:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 12:56:40,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-11-23 12:56:40,263 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2018-11-23 12:56:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:56:40,264 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-11-23 12:56:40,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 12:56:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-11-23 12:56:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 12:56:40,266 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:56:40,266 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 12:56:40,266 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:56:40,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:56:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1817468401, now seen corresponding path program 1 times [2018-11-23 12:56:40,267 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:56:40,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:56:40,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:40,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:40,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:40,465 INFO L256 TraceCheckUtils]: 0: Hoare triple {250#true} call ULTIMATE.init(); {250#true} is VALID [2018-11-23 12:56:40,466 INFO L273 TraceCheckUtils]: 1: Hoare triple {250#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {250#true} is VALID [2018-11-23 12:56:40,467 INFO L273 TraceCheckUtils]: 2: Hoare triple {250#true} assume true; {250#true} is VALID [2018-11-23 12:56:40,467 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {250#true} {250#true} #89#return; {250#true} is VALID [2018-11-23 12:56:40,467 INFO L256 TraceCheckUtils]: 4: Hoare triple {250#true} call #t~ret16 := main(); {250#true} is VALID [2018-11-23 12:56:40,470 INFO L273 TraceCheckUtils]: 5: Hoare triple {250#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {252#(<= 2 main_~len~0)} is VALID [2018-11-23 12:56:40,470 INFO L256 TraceCheckUtils]: 6: Hoare triple {252#(<= 2 main_~len~0)} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {250#true} is VALID [2018-11-23 12:56:40,476 INFO L273 TraceCheckUtils]: 7: Hoare triple {250#true} ~len := #in~len;~data := #in~data; {253#(<= |dll_circular_create_#in~len| dll_circular_create_~len)} is VALID [2018-11-23 12:56:40,477 INFO L256 TraceCheckUtils]: 8: Hoare triple {253#(<= |dll_circular_create_#in~len| dll_circular_create_~len)} call #t~ret3.base, #t~ret3.offset := node_create(~data); {250#true} is VALID [2018-11-23 12:56:40,477 INFO L273 TraceCheckUtils]: 9: Hoare triple {250#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {250#true} is VALID [2018-11-23 12:56:40,477 INFO L273 TraceCheckUtils]: 10: Hoare triple {250#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {250#true} is VALID [2018-11-23 12:56:40,477 INFO L273 TraceCheckUtils]: 11: Hoare triple {250#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {250#true} is VALID [2018-11-23 12:56:40,478 INFO L273 TraceCheckUtils]: 12: Hoare triple {250#true} assume true; {250#true} is VALID [2018-11-23 12:56:40,480 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {250#true} {253#(<= |dll_circular_create_#in~len| dll_circular_create_~len)} #85#return; {253#(<= |dll_circular_create_#in~len| dll_circular_create_~len)} is VALID [2018-11-23 12:56:40,480 INFO L273 TraceCheckUtils]: 14: Hoare triple {253#(<= |dll_circular_create_#in~len| dll_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; {253#(<= |dll_circular_create_#in~len| dll_circular_create_~len)} is VALID [2018-11-23 12:56:40,482 INFO L273 TraceCheckUtils]: 15: Hoare triple {253#(<= |dll_circular_create_#in~len| dll_circular_create_~len)} assume !(~len > 1); {254#(<= |dll_circular_create_#in~len| 1)} is VALID [2018-11-23 12:56:40,484 INFO L273 TraceCheckUtils]: 16: Hoare triple {254#(<= |dll_circular_create_#in~len| 1)} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {254#(<= |dll_circular_create_#in~len| 1)} is VALID [2018-11-23 12:56:40,485 INFO L273 TraceCheckUtils]: 17: Hoare triple {254#(<= |dll_circular_create_#in~len| 1)} assume true; {254#(<= |dll_circular_create_#in~len| 1)} is VALID [2018-11-23 12:56:40,487 INFO L268 TraceCheckUtils]: 18: Hoare quadruple {254#(<= |dll_circular_create_#in~len| 1)} {252#(<= 2 main_~len~0)} #81#return; {251#false} is VALID [2018-11-23 12:56:40,488 INFO L273 TraceCheckUtils]: 19: Hoare triple {251#false} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {251#false} is VALID [2018-11-23 12:56:40,488 INFO L273 TraceCheckUtils]: 20: Hoare triple {251#false} assume !(~i~0 < ~len~0); {251#false} is VALID [2018-11-23 12:56:40,488 INFO L273 TraceCheckUtils]: 21: Hoare triple {251#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {251#false} is VALID [2018-11-23 12:56:40,489 INFO L273 TraceCheckUtils]: 22: Hoare triple {251#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {251#false} is VALID [2018-11-23 12:56:40,489 INFO L273 TraceCheckUtils]: 23: Hoare triple {251#false} assume !false; {251#false} is VALID [2018-11-23 12:56:40,491 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 12:56:40,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:56:40,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 12:56:40,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-23 12:56:40,494 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:56:40,494 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 12:56:40,576 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 12:56:40,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 12:56:40,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:56:40,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:56:40,578 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2018-11-23 12:56:41,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:41,103 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2018-11-23 12:56:41,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 12:56:41,104 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-23 12:56:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:56:41,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 12:56:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2018-11-23 12:56:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 12:56:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2018-11-23 12:56:41,114 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 63 transitions. [2018-11-23 12:56:41,280 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:41,285 INFO L225 Difference]: With dead ends: 55 [2018-11-23 12:56:41,285 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 12:56:41,287 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:56:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 12:56:41,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2018-11-23 12:56:41,324 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:56:41,324 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand 36 states. [2018-11-23 12:56:41,324 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 36 states. [2018-11-23 12:56:41,325 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 36 states. [2018-11-23 12:56:41,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:41,329 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-11-23 12:56:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-11-23 12:56:41,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:41,330 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:41,330 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 40 states. [2018-11-23 12:56:41,331 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 40 states. [2018-11-23 12:56:41,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:41,335 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-11-23 12:56:41,335 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-11-23 12:56:41,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:41,336 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:41,336 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:56:41,337 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:56:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 12:56:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-11-23 12:56:41,340 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2018-11-23 12:56:41,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:56:41,341 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-11-23 12:56:41,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 12:56:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-11-23 12:56:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 12:56:41,342 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:56:41,343 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] [2018-11-23 12:56:41,343 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:56:41,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:56:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1351512963, now seen corresponding path program 1 times [2018-11-23 12:56:41,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:56:41,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:56:41,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:41,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:41,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:41,579 INFO L256 TraceCheckUtils]: 0: Hoare triple {465#true} call ULTIMATE.init(); {465#true} is VALID [2018-11-23 12:56:41,579 INFO L273 TraceCheckUtils]: 1: Hoare triple {465#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {465#true} is VALID [2018-11-23 12:56:41,579 INFO L273 TraceCheckUtils]: 2: Hoare triple {465#true} assume true; {465#true} is VALID [2018-11-23 12:56:41,580 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {465#true} {465#true} #89#return; {465#true} is VALID [2018-11-23 12:56:41,580 INFO L256 TraceCheckUtils]: 4: Hoare triple {465#true} call #t~ret16 := main(); {465#true} is VALID [2018-11-23 12:56:41,584 INFO L273 TraceCheckUtils]: 5: Hoare triple {465#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {467#(<= 2 main_~len~0)} is VALID [2018-11-23 12:56:41,585 INFO L256 TraceCheckUtils]: 6: Hoare triple {467#(<= 2 main_~len~0)} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {465#true} is VALID [2018-11-23 12:56:41,585 INFO L273 TraceCheckUtils]: 7: Hoare triple {465#true} ~len := #in~len;~data := #in~data; {465#true} is VALID [2018-11-23 12:56:41,585 INFO L256 TraceCheckUtils]: 8: Hoare triple {465#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {465#true} is VALID [2018-11-23 12:56:41,586 INFO L273 TraceCheckUtils]: 9: Hoare triple {465#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {465#true} is VALID [2018-11-23 12:56:41,586 INFO L273 TraceCheckUtils]: 10: Hoare triple {465#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {465#true} is VALID [2018-11-23 12:56:41,586 INFO L273 TraceCheckUtils]: 11: Hoare triple {465#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {465#true} is VALID [2018-11-23 12:56:41,587 INFO L273 TraceCheckUtils]: 12: Hoare triple {465#true} assume true; {465#true} is VALID [2018-11-23 12:56:41,587 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {465#true} {465#true} #85#return; {465#true} is VALID [2018-11-23 12:56:41,587 INFO L273 TraceCheckUtils]: 14: Hoare triple {465#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; {465#true} is VALID [2018-11-23 12:56:41,588 INFO L273 TraceCheckUtils]: 15: Hoare triple {465#true} assume !!(~len > 1); {465#true} is VALID [2018-11-23 12:56:41,588 INFO L256 TraceCheckUtils]: 16: Hoare triple {465#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {465#true} is VALID [2018-11-23 12:56:41,588 INFO L273 TraceCheckUtils]: 17: Hoare triple {465#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {465#true} is VALID [2018-11-23 12:56:41,589 INFO L273 TraceCheckUtils]: 18: Hoare triple {465#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {465#true} is VALID [2018-11-23 12:56:41,589 INFO L273 TraceCheckUtils]: 19: Hoare triple {465#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {465#true} is VALID [2018-11-23 12:56:41,589 INFO L273 TraceCheckUtils]: 20: Hoare triple {465#true} assume true; {465#true} is VALID [2018-11-23 12:56:41,590 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {465#true} {465#true} #87#return; {465#true} is VALID [2018-11-23 12:56:41,590 INFO L273 TraceCheckUtils]: 22: Hoare triple {465#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); {465#true} is VALID [2018-11-23 12:56:41,591 INFO L273 TraceCheckUtils]: 23: Hoare triple {465#true} assume ~head~0.base != 0 || ~head~0.offset != 0;call write~$Pointer$(~new_head~0.base, ~new_head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); {465#true} is VALID [2018-11-23 12:56:41,591 INFO L273 TraceCheckUtils]: 24: Hoare triple {465#true} ~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {465#true} is VALID [2018-11-23 12:56:41,591 INFO L273 TraceCheckUtils]: 25: Hoare triple {465#true} assume !(~len > 1); {465#true} is VALID [2018-11-23 12:56:41,593 INFO L273 TraceCheckUtils]: 26: Hoare triple {465#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {465#true} is VALID [2018-11-23 12:56:41,593 INFO L273 TraceCheckUtils]: 27: Hoare triple {465#true} assume true; {465#true} is VALID [2018-11-23 12:56:41,597 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {465#true} {467#(<= 2 main_~len~0)} #81#return; {467#(<= 2 main_~len~0)} is VALID [2018-11-23 12:56:41,601 INFO L273 TraceCheckUtils]: 29: Hoare triple {467#(<= 2 main_~len~0)} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {468#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:56:41,602 INFO L273 TraceCheckUtils]: 30: Hoare triple {468#(and (<= 2 main_~len~0) (= main_~i~0 0))} assume !(~i~0 < ~len~0); {466#false} is VALID [2018-11-23 12:56:41,602 INFO L273 TraceCheckUtils]: 31: Hoare triple {466#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {466#false} is VALID [2018-11-23 12:56:41,602 INFO L273 TraceCheckUtils]: 32: Hoare triple {466#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {466#false} is VALID [2018-11-23 12:56:41,603 INFO L273 TraceCheckUtils]: 33: Hoare triple {466#false} assume !false; {466#false} is VALID [2018-11-23 12:56:41,605 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 12:56:41,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:56:41,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 12:56:41,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-23 12:56:41,607 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:56:41,607 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 12:56:41,691 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:41,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:56:41,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:56:41,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:56:41,692 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2018-11-23 12:56:41,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:41,864 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2018-11-23 12:56:41,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:56:41,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-23 12:56:41,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:56:41,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 12:56:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2018-11-23 12:56:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 12:56:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2018-11-23 12:56:41,872 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 47 transitions. [2018-11-23 12:56:41,971 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:41,973 INFO L225 Difference]: With dead ends: 43 [2018-11-23 12:56:41,975 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 12:56:41,975 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 12:56:41,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 12:56:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-23 12:56:42,028 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:56:42,028 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 37 states. [2018-11-23 12:56:42,028 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 37 states. [2018-11-23 12:56:42,028 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 37 states. [2018-11-23 12:56:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:42,032 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-23 12:56:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-23 12:56:42,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:42,033 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:42,033 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 39 states. [2018-11-23 12:56:42,034 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 39 states. [2018-11-23 12:56:42,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:42,037 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-23 12:56:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-23 12:56:42,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:42,038 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:42,038 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:56:42,039 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:56:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-23 12:56:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-11-23 12:56:42,041 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 34 [2018-11-23 12:56:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:56:42,042 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-11-23 12:56:42,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:56:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-11-23 12:56:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 12:56:42,044 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:56:42,044 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, 1, 1] [2018-11-23 12:56:42,044 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:56:42,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:56:42,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1470377022, now seen corresponding path program 1 times [2018-11-23 12:56:42,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:56:42,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:56:42,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:42,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:42,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:42,291 INFO L256 TraceCheckUtils]: 0: Hoare triple {663#true} call ULTIMATE.init(); {663#true} is VALID [2018-11-23 12:56:42,291 INFO L273 TraceCheckUtils]: 1: Hoare triple {663#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {663#true} is VALID [2018-11-23 12:56:42,292 INFO L273 TraceCheckUtils]: 2: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,292 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {663#true} {663#true} #89#return; {663#true} is VALID [2018-11-23 12:56:42,292 INFO L256 TraceCheckUtils]: 4: Hoare triple {663#true} call #t~ret16 := main(); {663#true} is VALID [2018-11-23 12:56:42,294 INFO L273 TraceCheckUtils]: 5: Hoare triple {663#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {665#(<= 2 main_~len~0)} is VALID [2018-11-23 12:56:42,294 INFO L256 TraceCheckUtils]: 6: Hoare triple {665#(<= 2 main_~len~0)} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {663#true} is VALID [2018-11-23 12:56:42,295 INFO L273 TraceCheckUtils]: 7: Hoare triple {663#true} ~len := #in~len;~data := #in~data; {663#true} is VALID [2018-11-23 12:56:42,295 INFO L256 TraceCheckUtils]: 8: Hoare triple {663#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {663#true} is VALID [2018-11-23 12:56:42,295 INFO L273 TraceCheckUtils]: 9: Hoare triple {663#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {663#true} is VALID [2018-11-23 12:56:42,296 INFO L273 TraceCheckUtils]: 10: Hoare triple {663#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {663#true} is VALID [2018-11-23 12:56:42,296 INFO L273 TraceCheckUtils]: 11: Hoare triple {663#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {663#true} is VALID [2018-11-23 12:56:42,297 INFO L273 TraceCheckUtils]: 12: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,297 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {663#true} {663#true} #85#return; {663#true} is VALID [2018-11-23 12:56:42,297 INFO L273 TraceCheckUtils]: 14: Hoare triple {663#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; {663#true} is VALID [2018-11-23 12:56:42,298 INFO L273 TraceCheckUtils]: 15: Hoare triple {663#true} assume !!(~len > 1); {663#true} is VALID [2018-11-23 12:56:42,299 INFO L256 TraceCheckUtils]: 16: Hoare triple {663#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {663#true} is VALID [2018-11-23 12:56:42,299 INFO L273 TraceCheckUtils]: 17: Hoare triple {663#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {663#true} is VALID [2018-11-23 12:56:42,299 INFO L273 TraceCheckUtils]: 18: Hoare triple {663#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {663#true} is VALID [2018-11-23 12:56:42,300 INFO L273 TraceCheckUtils]: 19: Hoare triple {663#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {663#true} is VALID [2018-11-23 12:56:42,300 INFO L273 TraceCheckUtils]: 20: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,300 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {663#true} {663#true} #87#return; {663#true} is VALID [2018-11-23 12:56:42,301 INFO L273 TraceCheckUtils]: 22: Hoare triple {663#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); {663#true} is VALID [2018-11-23 12:56:42,301 INFO L273 TraceCheckUtils]: 23: Hoare triple {663#true} assume ~head~0.base != 0 || ~head~0.offset != 0;call write~$Pointer$(~new_head~0.base, ~new_head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); {663#true} is VALID [2018-11-23 12:56:42,301 INFO L273 TraceCheckUtils]: 24: Hoare triple {663#true} ~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {663#true} is VALID [2018-11-23 12:56:42,302 INFO L273 TraceCheckUtils]: 25: Hoare triple {663#true} assume !(~len > 1); {663#true} is VALID [2018-11-23 12:56:42,302 INFO L273 TraceCheckUtils]: 26: Hoare triple {663#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {663#true} is VALID [2018-11-23 12:56:42,302 INFO L273 TraceCheckUtils]: 27: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,306 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {663#true} {665#(<= 2 main_~len~0)} #81#return; {665#(<= 2 main_~len~0)} is VALID [2018-11-23 12:56:42,307 INFO L273 TraceCheckUtils]: 29: Hoare triple {665#(<= 2 main_~len~0)} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {666#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:56:42,308 INFO L273 TraceCheckUtils]: 30: Hoare triple {666#(and (<= 2 main_~len~0) (= main_~i~0 0))} assume !!(~i~0 < ~len~0); {666#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:56:42,308 INFO L256 TraceCheckUtils]: 31: Hoare triple {666#(and (<= 2 main_~len~0) (= main_~i~0 0))} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {663#true} is VALID [2018-11-23 12:56:42,308 INFO L273 TraceCheckUtils]: 32: Hoare triple {663#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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {663#true} is VALID [2018-11-23 12:56:42,309 INFO L273 TraceCheckUtils]: 33: Hoare triple {663#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); {663#true} is VALID [2018-11-23 12:56:42,309 INFO L273 TraceCheckUtils]: 34: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,311 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {663#true} {666#(and (<= 2 main_~len~0) (= main_~i~0 0))} #83#return; {666#(and (<= 2 main_~len~0) (= main_~i~0 0))} is VALID [2018-11-23 12:56:42,312 INFO L273 TraceCheckUtils]: 36: Hoare triple {666#(and (<= 2 main_~len~0) (= main_~i~0 0))} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {667#(<= (+ main_~i~0 1) main_~len~0)} is VALID [2018-11-23 12:56:42,313 INFO L273 TraceCheckUtils]: 37: Hoare triple {667#(<= (+ main_~i~0 1) main_~len~0)} assume !(~i~0 < ~len~0); {664#false} is VALID [2018-11-23 12:56:42,313 INFO L273 TraceCheckUtils]: 38: Hoare triple {664#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {664#false} is VALID [2018-11-23 12:56:42,314 INFO L273 TraceCheckUtils]: 39: Hoare triple {664#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {664#false} is VALID [2018-11-23 12:56:42,314 INFO L273 TraceCheckUtils]: 40: Hoare triple {664#false} assume !false; {664#false} is VALID [2018-11-23 12:56:42,318 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 12:56:42,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:56:42,319 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 12:56:42,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:42,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:56:42,924 INFO L256 TraceCheckUtils]: 0: Hoare triple {663#true} call ULTIMATE.init(); {663#true} is VALID [2018-11-23 12:56:42,925 INFO L273 TraceCheckUtils]: 1: Hoare triple {663#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {663#true} is VALID [2018-11-23 12:56:42,925 INFO L273 TraceCheckUtils]: 2: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,926 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {663#true} {663#true} #89#return; {663#true} is VALID [2018-11-23 12:56:42,926 INFO L256 TraceCheckUtils]: 4: Hoare triple {663#true} call #t~ret16 := main(); {663#true} is VALID [2018-11-23 12:56:42,941 INFO L273 TraceCheckUtils]: 5: Hoare triple {663#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {665#(<= 2 main_~len~0)} is VALID [2018-11-23 12:56:42,941 INFO L256 TraceCheckUtils]: 6: Hoare triple {665#(<= 2 main_~len~0)} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {663#true} is VALID [2018-11-23 12:56:42,942 INFO L273 TraceCheckUtils]: 7: Hoare triple {663#true} ~len := #in~len;~data := #in~data; {663#true} is VALID [2018-11-23 12:56:42,942 INFO L256 TraceCheckUtils]: 8: Hoare triple {663#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {663#true} is VALID [2018-11-23 12:56:42,942 INFO L273 TraceCheckUtils]: 9: Hoare triple {663#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {663#true} is VALID [2018-11-23 12:56:42,943 INFO L273 TraceCheckUtils]: 10: Hoare triple {663#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {663#true} is VALID [2018-11-23 12:56:42,943 INFO L273 TraceCheckUtils]: 11: Hoare triple {663#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {663#true} is VALID [2018-11-23 12:56:42,943 INFO L273 TraceCheckUtils]: 12: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,944 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {663#true} {663#true} #85#return; {663#true} is VALID [2018-11-23 12:56:42,944 INFO L273 TraceCheckUtils]: 14: Hoare triple {663#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; {663#true} is VALID [2018-11-23 12:56:42,944 INFO L273 TraceCheckUtils]: 15: Hoare triple {663#true} assume !!(~len > 1); {663#true} is VALID [2018-11-23 12:56:42,945 INFO L256 TraceCheckUtils]: 16: Hoare triple {663#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {663#true} is VALID [2018-11-23 12:56:42,945 INFO L273 TraceCheckUtils]: 17: Hoare triple {663#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {663#true} is VALID [2018-11-23 12:56:42,945 INFO L273 TraceCheckUtils]: 18: Hoare triple {663#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {663#true} is VALID [2018-11-23 12:56:42,946 INFO L273 TraceCheckUtils]: 19: Hoare triple {663#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {663#true} is VALID [2018-11-23 12:56:42,946 INFO L273 TraceCheckUtils]: 20: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,946 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {663#true} {663#true} #87#return; {663#true} is VALID [2018-11-23 12:56:42,946 INFO L273 TraceCheckUtils]: 22: Hoare triple {663#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); {663#true} is VALID [2018-11-23 12:56:42,947 INFO L273 TraceCheckUtils]: 23: Hoare triple {663#true} assume ~head~0.base != 0 || ~head~0.offset != 0;call write~$Pointer$(~new_head~0.base, ~new_head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); {663#true} is VALID [2018-11-23 12:56:42,947 INFO L273 TraceCheckUtils]: 24: Hoare triple {663#true} ~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {663#true} is VALID [2018-11-23 12:56:42,947 INFO L273 TraceCheckUtils]: 25: Hoare triple {663#true} assume !(~len > 1); {663#true} is VALID [2018-11-23 12:56:42,948 INFO L273 TraceCheckUtils]: 26: Hoare triple {663#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {663#true} is VALID [2018-11-23 12:56:42,948 INFO L273 TraceCheckUtils]: 27: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:42,961 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {663#true} {665#(<= 2 main_~len~0)} #81#return; {665#(<= 2 main_~len~0)} is VALID [2018-11-23 12:56:42,975 INFO L273 TraceCheckUtils]: 29: Hoare triple {665#(<= 2 main_~len~0)} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {758#(and (<= main_~i~0 0) (<= 2 main_~len~0))} is VALID [2018-11-23 12:56:42,988 INFO L273 TraceCheckUtils]: 30: Hoare triple {758#(and (<= main_~i~0 0) (<= 2 main_~len~0))} assume !!(~i~0 < ~len~0); {758#(and (<= main_~i~0 0) (<= 2 main_~len~0))} is VALID [2018-11-23 12:56:42,988 INFO L256 TraceCheckUtils]: 31: Hoare triple {758#(and (<= main_~i~0 0) (<= 2 main_~len~0))} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {663#true} is VALID [2018-11-23 12:56:42,988 INFO L273 TraceCheckUtils]: 32: Hoare triple {663#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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {663#true} is VALID [2018-11-23 12:56:42,989 INFO L273 TraceCheckUtils]: 33: Hoare triple {663#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); {663#true} is VALID [2018-11-23 12:56:42,989 INFO L273 TraceCheckUtils]: 34: Hoare triple {663#true} assume true; {663#true} is VALID [2018-11-23 12:56:43,009 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {663#true} {758#(and (<= main_~i~0 0) (<= 2 main_~len~0))} #83#return; {758#(and (<= main_~i~0 0) (<= 2 main_~len~0))} is VALID [2018-11-23 12:56:43,018 INFO L273 TraceCheckUtils]: 36: Hoare triple {758#(and (<= main_~i~0 0) (<= 2 main_~len~0))} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {780#(and (<= main_~i~0 1) (<= 2 main_~len~0))} is VALID [2018-11-23 12:56:43,031 INFO L273 TraceCheckUtils]: 37: Hoare triple {780#(and (<= main_~i~0 1) (<= 2 main_~len~0))} assume !(~i~0 < ~len~0); {664#false} is VALID [2018-11-23 12:56:43,032 INFO L273 TraceCheckUtils]: 38: Hoare triple {664#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {664#false} is VALID [2018-11-23 12:56:43,032 INFO L273 TraceCheckUtils]: 39: Hoare triple {664#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {664#false} is VALID [2018-11-23 12:56:43,033 INFO L273 TraceCheckUtils]: 40: Hoare triple {664#false} assume !false; {664#false} is VALID [2018-11-23 12:56:43,037 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 12:56:43,068 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:56:43,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-23 12:56:43,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-23 12:56:43,069 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:56:43,069 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-23 12:56:43,220 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 12:56:43,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:56:43,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:56:43,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:56:43,222 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 7 states. [2018-11-23 12:56:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:43,617 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2018-11-23 12:56:43,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:56:43,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-23 12:56:43,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:56:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 12:56:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2018-11-23 12:56:43,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 12:56:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2018-11-23 12:56:43,623 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 51 transitions. [2018-11-23 12:56:43,831 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:43,833 INFO L225 Difference]: With dead ends: 46 [2018-11-23 12:56:43,834 INFO L226 Difference]: Without dead ends: 42 [2018-11-23 12:56:43,834 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2018-11-23 12:56:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-23 12:56:43,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-23 12:56:43,888 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:56:43,888 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 40 states. [2018-11-23 12:56:43,889 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 40 states. [2018-11-23 12:56:43,889 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 40 states. [2018-11-23 12:56:43,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:43,893 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-23 12:56:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-11-23 12:56:43,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:43,894 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:43,895 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 42 states. [2018-11-23 12:56:43,895 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 42 states. [2018-11-23 12:56:43,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:43,899 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-23 12:56:43,899 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-11-23 12:56:43,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:43,900 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:43,900 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:56:43,900 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:56:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 12:56:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2018-11-23 12:56:43,903 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 41 [2018-11-23 12:56:43,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:56:43,904 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2018-11-23 12:56:43,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:56:43,904 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-11-23 12:56:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-23 12:56:43,906 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:56:43,906 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] [2018-11-23 12:56:43,906 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:56:43,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:56:43,907 INFO L82 PathProgramCache]: Analyzing trace with hash -659866845, now seen corresponding path program 2 times [2018-11-23 12:56:43,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:56:43,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:56:43,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:43,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:43,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:44,205 INFO L256 TraceCheckUtils]: 0: Hoare triple {1002#true} call ULTIMATE.init(); {1002#true} is VALID [2018-11-23 12:56:44,205 INFO L273 TraceCheckUtils]: 1: Hoare triple {1002#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1002#true} is VALID [2018-11-23 12:56:44,205 INFO L273 TraceCheckUtils]: 2: Hoare triple {1002#true} assume true; {1002#true} is VALID [2018-11-23 12:56:44,206 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1002#true} {1002#true} #89#return; {1002#true} is VALID [2018-11-23 12:56:44,206 INFO L256 TraceCheckUtils]: 4: Hoare triple {1002#true} call #t~ret16 := main(); {1002#true} is VALID [2018-11-23 12:56:44,206 INFO L273 TraceCheckUtils]: 5: Hoare triple {1002#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1002#true} is VALID [2018-11-23 12:56:44,206 INFO L256 TraceCheckUtils]: 6: Hoare triple {1002#true} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {1002#true} is VALID [2018-11-23 12:56:44,207 INFO L273 TraceCheckUtils]: 7: Hoare triple {1002#true} ~len := #in~len;~data := #in~data; {1002#true} is VALID [2018-11-23 12:56:44,207 INFO L256 TraceCheckUtils]: 8: Hoare triple {1002#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1002#true} is VALID [2018-11-23 12:56:44,207 INFO L273 TraceCheckUtils]: 9: Hoare triple {1002#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1002#true} is VALID [2018-11-23 12:56:44,208 INFO L273 TraceCheckUtils]: 10: Hoare triple {1002#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1002#true} is VALID [2018-11-23 12:56:44,208 INFO L273 TraceCheckUtils]: 11: Hoare triple {1002#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1002#true} is VALID [2018-11-23 12:56:44,208 INFO L273 TraceCheckUtils]: 12: Hoare triple {1002#true} assume true; {1002#true} is VALID [2018-11-23 12:56:44,208 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1002#true} {1002#true} #85#return; {1002#true} is VALID [2018-11-23 12:56:44,209 INFO L273 TraceCheckUtils]: 14: Hoare triple {1002#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; {1002#true} is VALID [2018-11-23 12:56:44,209 INFO L273 TraceCheckUtils]: 15: Hoare triple {1002#true} assume !!(~len > 1); {1002#true} is VALID [2018-11-23 12:56:44,209 INFO L256 TraceCheckUtils]: 16: Hoare triple {1002#true} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1002#true} is VALID [2018-11-23 12:56:44,210 INFO L273 TraceCheckUtils]: 17: Hoare triple {1002#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1002#true} is VALID [2018-11-23 12:56:44,210 INFO L273 TraceCheckUtils]: 18: Hoare triple {1002#true} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1002#true} is VALID [2018-11-23 12:56:44,210 INFO L273 TraceCheckUtils]: 19: Hoare triple {1002#true} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1002#true} is VALID [2018-11-23 12:56:44,210 INFO L273 TraceCheckUtils]: 20: Hoare triple {1002#true} assume true; {1002#true} is VALID [2018-11-23 12:56:44,210 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1002#true} {1002#true} #87#return; {1002#true} is VALID [2018-11-23 12:56:44,211 INFO L273 TraceCheckUtils]: 22: Hoare triple {1002#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); {1002#true} is VALID [2018-11-23 12:56:44,211 INFO L273 TraceCheckUtils]: 23: Hoare triple {1002#true} assume ~head~0.base != 0 || ~head~0.offset != 0;call write~$Pointer$(~new_head~0.base, ~new_head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); {1002#true} is VALID [2018-11-23 12:56:44,211 INFO L273 TraceCheckUtils]: 24: Hoare triple {1002#true} ~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1002#true} is VALID [2018-11-23 12:56:44,211 INFO L273 TraceCheckUtils]: 25: Hoare triple {1002#true} assume !(~len > 1); {1002#true} is VALID [2018-11-23 12:56:44,212 INFO L273 TraceCheckUtils]: 26: Hoare triple {1002#true} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1002#true} is VALID [2018-11-23 12:56:44,212 INFO L273 TraceCheckUtils]: 27: Hoare triple {1002#true} assume true; {1002#true} is VALID [2018-11-23 12:56:44,212 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {1002#true} {1002#true} #81#return; {1002#true} is VALID [2018-11-23 12:56:44,213 INFO L273 TraceCheckUtils]: 29: Hoare triple {1002#true} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {1002#true} is VALID [2018-11-23 12:56:44,213 INFO L273 TraceCheckUtils]: 30: Hoare triple {1002#true} assume !!(~i~0 < ~len~0); {1002#true} is VALID [2018-11-23 12:56:44,213 INFO L256 TraceCheckUtils]: 31: Hoare triple {1002#true} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1002#true} is VALID [2018-11-23 12:56:44,213 INFO L273 TraceCheckUtils]: 32: Hoare triple {1002#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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1002#true} is VALID [2018-11-23 12:56:44,214 INFO L273 TraceCheckUtils]: 33: Hoare triple {1002#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); {1002#true} is VALID [2018-11-23 12:56:44,214 INFO L273 TraceCheckUtils]: 34: Hoare triple {1002#true} assume true; {1002#true} is VALID [2018-11-23 12:56:44,214 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {1002#true} {1002#true} #83#return; {1002#true} is VALID [2018-11-23 12:56:44,215 INFO L273 TraceCheckUtils]: 36: Hoare triple {1002#true} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1002#true} is VALID [2018-11-23 12:56:44,215 INFO L273 TraceCheckUtils]: 37: Hoare triple {1002#true} assume !!(~i~0 < ~len~0); {1002#true} is VALID [2018-11-23 12:56:44,215 INFO L256 TraceCheckUtils]: 38: Hoare triple {1002#true} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1002#true} is VALID [2018-11-23 12:56:44,218 INFO L273 TraceCheckUtils]: 39: Hoare triple {1002#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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1004#(and (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.base|))} is VALID [2018-11-23 12:56:44,222 INFO L273 TraceCheckUtils]: 40: Hoare triple {1004#(and (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.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); {1005#(and (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))} is VALID [2018-11-23 12:56:44,224 INFO L273 TraceCheckUtils]: 41: Hoare triple {1005#(and (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))} assume true; {1005#(and (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))} is VALID [2018-11-23 12:56:44,225 INFO L268 TraceCheckUtils]: 42: Hoare quadruple {1005#(and (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))} {1002#true} #83#return; {1006#(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 12:56:44,227 INFO L273 TraceCheckUtils]: 43: Hoare triple {1006#(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~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1006#(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 12:56:44,228 INFO L273 TraceCheckUtils]: 44: Hoare triple {1006#(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); {1006#(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 12:56:44,233 INFO L273 TraceCheckUtils]: 45: Hoare triple {1006#(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~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1007#(and (= 0 |main_#t~mem15.base|) (= |main_#t~mem15.offset| 0))} is VALID [2018-11-23 12:56:44,237 INFO L273 TraceCheckUtils]: 46: Hoare triple {1007#(and (= 0 |main_#t~mem15.base|) (= |main_#t~mem15.offset| 0))} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {1003#false} is VALID [2018-11-23 12:56:44,237 INFO L273 TraceCheckUtils]: 47: Hoare triple {1003#false} assume !false; {1003#false} is VALID [2018-11-23 12:56:44,242 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 12:56:44,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:56:44,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:56:44,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-11-23 12:56:44,244 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:56:44,244 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-23 12:56:44,404 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:44,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:56:44,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:56:44,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:56:44,405 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 6 states. [2018-11-23 12:56:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:45,037 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-11-23 12:56:45,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:56:45,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-11-23 12:56:45,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:56:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 12:56:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 53 transitions. [2018-11-23 12:56:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 12:56:45,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 53 transitions. [2018-11-23 12:56:45,043 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 53 transitions. [2018-11-23 12:56:45,154 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:45,157 INFO L225 Difference]: With dead ends: 53 [2018-11-23 12:56:45,157 INFO L226 Difference]: Without dead ends: 49 [2018-11-23 12:56:45,158 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 12:56:45,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-23 12:56:45,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2018-11-23 12:56:45,203 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:56:45,204 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 42 states. [2018-11-23 12:56:45,204 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 42 states. [2018-11-23 12:56:45,204 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 42 states. [2018-11-23 12:56:45,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:45,208 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-23 12:56:45,208 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-11-23 12:56:45,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:45,209 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:45,209 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 49 states. [2018-11-23 12:56:45,209 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 49 states. [2018-11-23 12:56:45,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:45,213 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-23 12:56:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-11-23 12:56:45,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:45,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:45,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:56:45,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:56:45,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 12:56:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2018-11-23 12:56:45,218 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 48 [2018-11-23 12:56:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:56:45,219 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2018-11-23 12:56:45,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:56:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-11-23 12:56:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-23 12:56:45,220 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:56:45,220 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] [2018-11-23 12:56:45,221 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:56:45,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:56:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1469213471, now seen corresponding path program 1 times [2018-11-23 12:56:45,221 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:56:45,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:56:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:45,223 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 12:56:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:45,980 INFO L256 TraceCheckUtils]: 0: Hoare triple {1248#true} call ULTIMATE.init(); {1248#true} is VALID [2018-11-23 12:56:45,980 INFO L273 TraceCheckUtils]: 1: Hoare triple {1248#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1248#true} is VALID [2018-11-23 12:56:45,980 INFO L273 TraceCheckUtils]: 2: Hoare triple {1248#true} assume true; {1248#true} is VALID [2018-11-23 12:56:45,981 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1248#true} {1248#true} #89#return; {1248#true} is VALID [2018-11-23 12:56:45,981 INFO L256 TraceCheckUtils]: 4: Hoare triple {1248#true} call #t~ret16 := main(); {1248#true} is VALID [2018-11-23 12:56:45,981 INFO L273 TraceCheckUtils]: 5: Hoare triple {1248#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1248#true} is VALID [2018-11-23 12:56:45,981 INFO L256 TraceCheckUtils]: 6: Hoare triple {1248#true} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {1248#true} is VALID [2018-11-23 12:56:45,982 INFO L273 TraceCheckUtils]: 7: Hoare triple {1248#true} ~len := #in~len;~data := #in~data; {1248#true} is VALID [2018-11-23 12:56:45,982 INFO L256 TraceCheckUtils]: 8: Hoare triple {1248#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1248#true} is VALID [2018-11-23 12:56:45,996 INFO L273 TraceCheckUtils]: 9: Hoare triple {1248#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1250#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:56:46,012 INFO L273 TraceCheckUtils]: 10: Hoare triple {1250#(= (select |#valid| node_create_~temp~0.base) 1)} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1250#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:56:46,022 INFO L273 TraceCheckUtils]: 11: Hoare triple {1250#(= (select |#valid| node_create_~temp~0.base) 1)} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1251#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:56:46,034 INFO L273 TraceCheckUtils]: 12: Hoare triple {1251#(= (select |#valid| |node_create_#res.base|) 1)} assume true; {1251#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:56:46,051 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1251#(= (select |#valid| |node_create_#res.base|) 1)} {1248#true} #85#return; {1252#(= (select |#valid| |dll_circular_create_#t~ret3.base|) 1)} is VALID [2018-11-23 12:56:46,060 INFO L273 TraceCheckUtils]: 14: Hoare triple {1252#(= (select |#valid| |dll_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; {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:56:46,079 INFO L273 TraceCheckUtils]: 15: Hoare triple {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} assume !!(~len > 1); {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:56:46,089 INFO L256 TraceCheckUtils]: 16: Hoare triple {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1254#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:56:46,102 INFO L273 TraceCheckUtils]: 17: Hoare triple {1254#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1255#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} is VALID [2018-11-23 12:56:46,115 INFO L273 TraceCheckUtils]: 18: Hoare triple {1255#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1255#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} is VALID [2018-11-23 12:56:46,128 INFO L273 TraceCheckUtils]: 19: Hoare triple {1255#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1256#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} is VALID [2018-11-23 12:56:46,145 INFO L273 TraceCheckUtils]: 20: Hoare triple {1256#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} assume true; {1256#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} is VALID [2018-11-23 12:56:46,155 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1256#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} #87#return; {1257#(and (not (= dll_circular_create_~last~0.base |dll_circular_create_#t~ret4.base|)) (= 0 |dll_circular_create_#t~ret4.offset|) (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base))} is VALID [2018-11-23 12:56:46,168 INFO L273 TraceCheckUtils]: 22: Hoare triple {1257#(and (not (= dll_circular_create_~last~0.base |dll_circular_create_#t~ret4.base|)) (= 0 |dll_circular_create_#t~ret4.offset|) (= dll_circular_create_~last~0.base dll_circular_create_~head~0.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); {1258#(and (not (= dll_circular_create_~new_head~0.base dll_circular_create_~head~0.base)) (= dll_circular_create_~last~0.base (select (select (store |#memory_$Pointer$.base| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.base)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~new_head~0.offset) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} is VALID [2018-11-23 12:56:46,181 INFO L273 TraceCheckUtils]: 23: Hoare triple {1258#(and (not (= dll_circular_create_~new_head~0.base dll_circular_create_~head~0.base)) (= dll_circular_create_~last~0.base (select (select (store |#memory_$Pointer$.base| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.base)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~new_head~0.offset) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} assume ~head~0.base != 0 || ~head~0.offset != 0;call write~$Pointer$(~new_head~0.base, ~new_head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); {1259#(and (= dll_circular_create_~last~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~new_head~0.offset) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} is VALID [2018-11-23 12:56:46,194 INFO L273 TraceCheckUtils]: 24: Hoare triple {1259#(and (= dll_circular_create_~last~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~new_head~0.offset) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} ~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1260#(and (not (= (+ dll_circular_create_~head~0.offset 4) 0)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} is VALID [2018-11-23 12:56:46,207 INFO L273 TraceCheckUtils]: 25: Hoare triple {1260#(and (not (= (+ dll_circular_create_~head~0.offset 4) 0)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} assume !(~len > 1); {1260#(and (not (= (+ dll_circular_create_~head~0.offset 4) 0)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} is VALID [2018-11-23 12:56:46,221 INFO L273 TraceCheckUtils]: 26: Hoare triple {1260#(and (not (= (+ dll_circular_create_~head~0.offset 4) 0)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1261#(not (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:56:46,234 INFO L273 TraceCheckUtils]: 27: Hoare triple {1261#(not (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} assume true; {1261#(not (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:56:46,247 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {1261#(not (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} {1248#true} #81#return; {1262#(not (= |main_#t~ret13.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)))} is VALID [2018-11-23 12:56:46,261 INFO L273 TraceCheckUtils]: 29: Hoare triple {1262#(not (= |main_#t~ret13.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)))} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {1263#(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 12:56:46,273 INFO L273 TraceCheckUtils]: 30: Hoare triple {1263#(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); {1263#(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 12:56:46,287 INFO L256 TraceCheckUtils]: 31: Hoare triple {1263#(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 dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1264#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:56:46,300 INFO L273 TraceCheckUtils]: 32: Hoare triple {1264#(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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1265#(and (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) dll_circular_remove_first_~temp~1.base) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.base|) (= |dll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:56:46,307 INFO L273 TraceCheckUtils]: 33: Hoare triple {1265#(and (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) dll_circular_remove_first_~temp~1.base) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.base|) (= |dll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.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); {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:56:46,308 INFO L273 TraceCheckUtils]: 34: Hoare triple {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} assume true; {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:56:46,310 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} {1263#(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|))))} #83#return; {1249#false} is VALID [2018-11-23 12:56:46,310 INFO L273 TraceCheckUtils]: 36: Hoare triple {1249#false} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1249#false} is VALID [2018-11-23 12:56:46,310 INFO L273 TraceCheckUtils]: 37: Hoare triple {1249#false} assume !!(~i~0 < ~len~0); {1249#false} is VALID [2018-11-23 12:56:46,311 INFO L256 TraceCheckUtils]: 38: Hoare triple {1249#false} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1248#true} is VALID [2018-11-23 12:56:46,311 INFO L273 TraceCheckUtils]: 39: Hoare triple {1248#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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1248#true} is VALID [2018-11-23 12:56:46,311 INFO L273 TraceCheckUtils]: 40: Hoare triple {1248#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);call #t~mem11.base, #t~mem11.offset := read~$Pointer$(#t~mem10.base, 4 + #t~mem10.offset, 4);~last~1.base, ~last~1.offset := #t~mem11.base, #t~mem11.offset;havoc #t~mem11.base, #t~mem11.offset;havoc #t~mem10.base, #t~mem10.offset;call write~$Pointer$(~last~1.base, ~last~1.offset, ~temp~1.base, 4 + ~temp~1.offset, 4);call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem12.base, #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1248#true} is VALID [2018-11-23 12:56:46,312 INFO L273 TraceCheckUtils]: 41: Hoare triple {1248#true} assume true; {1248#true} is VALID [2018-11-23 12:56:46,312 INFO L268 TraceCheckUtils]: 42: Hoare quadruple {1248#true} {1249#false} #83#return; {1249#false} is VALID [2018-11-23 12:56:46,313 INFO L273 TraceCheckUtils]: 43: Hoare triple {1249#false} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1249#false} is VALID [2018-11-23 12:56:46,313 INFO L273 TraceCheckUtils]: 44: Hoare triple {1249#false} assume !(~i~0 < ~len~0); {1249#false} is VALID [2018-11-23 12:56:46,313 INFO L273 TraceCheckUtils]: 45: Hoare triple {1249#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1249#false} is VALID [2018-11-23 12:56:46,314 INFO L273 TraceCheckUtils]: 46: Hoare triple {1249#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {1249#false} is VALID [2018-11-23 12:56:46,314 INFO L273 TraceCheckUtils]: 47: Hoare triple {1249#false} assume !false; {1249#false} is VALID [2018-11-23 12:56:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 12:56:46,322 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:56:46,322 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 12:56:46,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:46,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:56:46,516 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 12:56:46,522 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,527 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-23 12:56:46,530 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 12:56:46,530 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#valid_27|]. (= |#valid| (store |v_#valid_27| node_create_~temp~0.base 1)) [2018-11-23 12:56:46,531 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (= (select |#valid| node_create_~temp~0.base) 1) [2018-11-23 12:56:46,736 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:46,737 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:46,739 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 12:56:46,741 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,764 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-11-23 12:56:46,833 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 12:56:46,842 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 8 treesize of output 7 [2018-11-23 12:56:46,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,846 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,863 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-11-23 12:56:46,972 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-23 12:56:46,977 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 10 treesize of output 9 [2018-11-23 12:56:46,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,988 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:46,995 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 12:56:46,995 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-11-23 12:56:46,999 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 12:56:46,999 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_$Pointer$.base_32|, dll_circular_create_~head~0.offset]. (and (= (select (select |v_#memory_$Pointer$.base_32| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset) dll_circular_create_~last~0.base) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_32| dll_circular_create_~last~0.base (store (select |v_#memory_$Pointer$.base_32| dll_circular_create_~last~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.base))) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base))) [2018-11-23 12:56:46,999 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ [dll_circular_create_~head~0.offset]. (and (= dll_circular_create_~last~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= dll_circular_create_~new_head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) (+ dll_circular_create_~head~0.offset 4))) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base))) [2018-11-23 12:56:47,322 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 48 [2018-11-23 12:56:47,342 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 25 [2018-11-23 12:56:47,345 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:47,390 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 50 treesize of output 40 [2018-11-23 12:56:47,405 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:47,406 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2018-11-23 12:56:47,411 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:47,422 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:47,432 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:47,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 12:56:47,447 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:71, output treesize:46 [2018-11-23 12:56:47,467 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 12:56:47,467 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_$Pointer$.base_33|, dll_circular_create_~last~0.offset, v_subst_1]. (let ((.cse1 (select (select |v_#memory_$Pointer$.base_33| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (let ((.cse0 (select |v_#memory_$Pointer$.base_33| .cse1))) (and (= |dll_circular_create_#res.base| (select .cse0 (+ v_subst_1 4))) (not (= |dll_circular_create_#res.base| .cse1)) (= (let ((.cse2 (store |v_#memory_$Pointer$.base_33| .cse1 (store .cse0 dll_circular_create_~last~0.offset |dll_circular_create_#res.base|)))) (store .cse2 |dll_circular_create_#res.base| (store (select .cse2 |dll_circular_create_#res.base|) (+ |dll_circular_create_#res.offset| 4) .cse1))) |#memory_$Pointer$.base|)))) [2018-11-23 12:56:47,468 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ [v_subst_1, dll_circular_create_~last~0.offset]. (let ((.cse2 (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|))) (let ((.cse1 (select .cse2 |dll_circular_create_#res.offset|))) (let ((.cse0 (select |#memory_$Pointer$.base| .cse1))) (and (= |dll_circular_create_#res.base| (select .cse0 (+ v_subst_1 4))) (= |dll_circular_create_#res.base| (select .cse0 dll_circular_create_~last~0.offset)) (= .cse1 (select .cse2 (+ |dll_circular_create_#res.offset| 4))) (not (= .cse1 |dll_circular_create_#res.base|)))))) [2018-11-23 12:56:47,994 INFO L256 TraceCheckUtils]: 0: Hoare triple {1248#true} call ULTIMATE.init(); {1248#true} is VALID [2018-11-23 12:56:47,995 INFO L273 TraceCheckUtils]: 1: Hoare triple {1248#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1248#true} is VALID [2018-11-23 12:56:47,995 INFO L273 TraceCheckUtils]: 2: Hoare triple {1248#true} assume true; {1248#true} is VALID [2018-11-23 12:56:47,995 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1248#true} {1248#true} #89#return; {1248#true} is VALID [2018-11-23 12:56:47,996 INFO L256 TraceCheckUtils]: 4: Hoare triple {1248#true} call #t~ret16 := main(); {1248#true} is VALID [2018-11-23 12:56:48,008 INFO L273 TraceCheckUtils]: 5: Hoare triple {1248#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1285#(= |main_~#s~0.offset| 0)} is VALID [2018-11-23 12:56:48,009 INFO L256 TraceCheckUtils]: 6: Hoare triple {1285#(= |main_~#s~0.offset| 0)} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {1248#true} is VALID [2018-11-23 12:56:48,009 INFO L273 TraceCheckUtils]: 7: Hoare triple {1248#true} ~len := #in~len;~data := #in~data; {1248#true} is VALID [2018-11-23 12:56:48,009 INFO L256 TraceCheckUtils]: 8: Hoare triple {1248#true} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1248#true} is VALID [2018-11-23 12:56:48,022 INFO L273 TraceCheckUtils]: 9: Hoare triple {1248#true} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1250#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:56:48,030 INFO L273 TraceCheckUtils]: 10: Hoare triple {1250#(= (select |#valid| node_create_~temp~0.base) 1)} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1250#(= (select |#valid| node_create_~temp~0.base) 1)} is VALID [2018-11-23 12:56:48,032 INFO L273 TraceCheckUtils]: 11: Hoare triple {1250#(= (select |#valid| node_create_~temp~0.base) 1)} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1251#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:56:48,032 INFO L273 TraceCheckUtils]: 12: Hoare triple {1251#(= (select |#valid| |node_create_#res.base|) 1)} assume true; {1251#(= (select |#valid| |node_create_#res.base|) 1)} is VALID [2018-11-23 12:56:48,046 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1251#(= (select |#valid| |node_create_#res.base|) 1)} {1248#true} #85#return; {1252#(= (select |#valid| |dll_circular_create_#t~ret3.base|) 1)} is VALID [2018-11-23 12:56:48,047 INFO L273 TraceCheckUtils]: 14: Hoare triple {1252#(= (select |#valid| |dll_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; {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:56:48,055 INFO L273 TraceCheckUtils]: 15: Hoare triple {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} assume !!(~len > 1); {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} is VALID [2018-11-23 12:56:48,057 INFO L256 TraceCheckUtils]: 16: Hoare triple {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1254#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:56:48,057 INFO L273 TraceCheckUtils]: 17: Hoare triple {1254#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1322#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:56:48,059 INFO L273 TraceCheckUtils]: 18: Hoare triple {1322#(= 0 (select |old(#valid)| node_create_~temp~0.base))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1322#(= 0 (select |old(#valid)| node_create_~temp~0.base))} is VALID [2018-11-23 12:56:48,059 INFO L273 TraceCheckUtils]: 19: Hoare triple {1322#(= 0 (select |old(#valid)| node_create_~temp~0.base))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1329#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:56:48,062 INFO L273 TraceCheckUtils]: 20: Hoare triple {1329#(= 0 (select |old(#valid)| |node_create_#res.base|))} assume true; {1329#(= 0 (select |old(#valid)| |node_create_#res.base|))} is VALID [2018-11-23 12:56:48,064 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1329#(= 0 (select |old(#valid)| |node_create_#res.base|))} {1253#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= (select |#valid| dll_circular_create_~last~0.base) 1))} #87#return; {1336#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (not (= |dll_circular_create_#t~ret4.base| dll_circular_create_~last~0.base)))} is VALID [2018-11-23 12:56:48,065 INFO L273 TraceCheckUtils]: 22: Hoare triple {1336#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (not (= |dll_circular_create_#t~ret4.base| dll_circular_create_~last~0.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); {1340#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= dll_circular_create_~head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} is VALID [2018-11-23 12:56:48,066 INFO L273 TraceCheckUtils]: 23: Hoare triple {1340#(and (= dll_circular_create_~last~0.base dll_circular_create_~head~0.base) (= dll_circular_create_~head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} assume ~head~0.base != 0 || ~head~0.offset != 0;call write~$Pointer$(~new_head~0.base, ~new_head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); {1344#(and (= dll_circular_create_~last~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (exists ((dll_circular_create_~head~0.offset Int)) (= dll_circular_create_~new_head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) (+ dll_circular_create_~head~0.offset 4)))) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} is VALID [2018-11-23 12:56:48,067 INFO L273 TraceCheckUtils]: 24: Hoare triple {1344#(and (= dll_circular_create_~last~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (exists ((dll_circular_create_~head~0.offset Int)) (= dll_circular_create_~new_head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) (+ dll_circular_create_~head~0.offset 4)))) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} ~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1348#(and (exists ((v_subst_1 Int)) (= dll_circular_create_~head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) (+ v_subst_1 4)))) (not (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) dll_circular_create_~head~0.offset) dll_circular_create_~last~0.base))} is VALID [2018-11-23 12:56:48,068 INFO L273 TraceCheckUtils]: 25: Hoare triple {1348#(and (exists ((v_subst_1 Int)) (= dll_circular_create_~head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) (+ v_subst_1 4)))) (not (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) dll_circular_create_~head~0.offset) dll_circular_create_~last~0.base))} assume !(~len > 1); {1348#(and (exists ((v_subst_1 Int)) (= dll_circular_create_~head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) (+ v_subst_1 4)))) (not (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) dll_circular_create_~head~0.offset) dll_circular_create_~last~0.base))} is VALID [2018-11-23 12:56:48,070 INFO L273 TraceCheckUtils]: 26: Hoare triple {1348#(and (exists ((v_subst_1 Int)) (= dll_circular_create_~head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) (+ v_subst_1 4)))) (not (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) dll_circular_create_~head~0.offset) dll_circular_create_~last~0.base))} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1355#(and (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) (+ |dll_circular_create_#res.offset| 4))) (exists ((v_subst_1 Int)) (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (+ v_subst_1 4)))) (not (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) |dll_circular_create_#res.base|)))} is VALID [2018-11-23 12:56:48,071 INFO L273 TraceCheckUtils]: 27: Hoare triple {1355#(and (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) (+ |dll_circular_create_#res.offset| 4))) (exists ((v_subst_1 Int)) (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (+ v_subst_1 4)))) (not (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) |dll_circular_create_#res.base|)))} assume true; {1355#(and (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) (+ |dll_circular_create_#res.offset| 4))) (exists ((v_subst_1 Int)) (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (+ v_subst_1 4)))) (not (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) |dll_circular_create_#res.base|)))} is VALID [2018-11-23 12:56:48,073 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {1355#(and (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) (+ |dll_circular_create_#res.offset| 4))) (exists ((v_subst_1 Int)) (= |dll_circular_create_#res.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (+ v_subst_1 4)))) (not (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) |dll_circular_create_#res.base|)))} {1285#(= |main_~#s~0.offset| 0)} #81#return; {1362#(and (= (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) (+ |main_#t~ret13.offset| 4)) (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (exists ((v_subst_1 Int)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (+ v_subst_1 4)) |main_#t~ret13.base|)) (= |main_~#s~0.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|) |main_#t~ret13.base|)))} is VALID [2018-11-23 12:56:48,075 INFO L273 TraceCheckUtils]: 29: Hoare triple {1362#(and (= (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) (+ |main_#t~ret13.offset| 4)) (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (exists ((v_subst_1 Int)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (+ v_subst_1 4)) |main_#t~ret13.base|)) (= |main_~#s~0.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|) |main_#t~ret13.base|)))} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {1366#(and (= (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| (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|) 4))) (= |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 ((v_subst_1 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|))) (+ v_subst_1 4)))))} is VALID [2018-11-23 12:56:48,076 INFO L273 TraceCheckUtils]: 30: Hoare triple {1366#(and (= (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| (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|) 4))) (= |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 ((v_subst_1 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|))) (+ v_subst_1 4)))))} assume !!(~i~0 < ~len~0); {1366#(and (= (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| (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|) 4))) (= |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 ((v_subst_1 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|))) (+ v_subst_1 4)))))} is VALID [2018-11-23 12:56:48,078 INFO L256 TraceCheckUtils]: 31: Hoare triple {1366#(and (= (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| (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|) 4))) (= |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 ((v_subst_1 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|))) (+ v_subst_1 4)))))} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1264#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:56:48,079 INFO L273 TraceCheckUtils]: 32: Hoare triple {1264#(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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1376#(and (= dll_circular_remove_first_~temp~1.base (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (= |dll_circular_remove_first_#t~mem8.base| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))} is VALID [2018-11-23 12:56:48,081 INFO L273 TraceCheckUtils]: 33: Hoare triple {1376#(and (= dll_circular_remove_first_~temp~1.base (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (= |dll_circular_remove_first_#t~mem8.base| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_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); {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:56:48,081 INFO L273 TraceCheckUtils]: 34: Hoare triple {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} assume true; {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} is VALID [2018-11-23 12:56:48,083 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {1266#(= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))} {1366#(and (= (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| (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|) 4))) (= |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 ((v_subst_1 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|))) (+ v_subst_1 4)))))} #83#return; {1249#false} is VALID [2018-11-23 12:56:48,083 INFO L273 TraceCheckUtils]: 36: Hoare triple {1249#false} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1249#false} is VALID [2018-11-23 12:56:48,084 INFO L273 TraceCheckUtils]: 37: Hoare triple {1249#false} assume !!(~i~0 < ~len~0); {1249#false} is VALID [2018-11-23 12:56:48,084 INFO L256 TraceCheckUtils]: 38: Hoare triple {1249#false} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1249#false} is VALID [2018-11-23 12:56:48,084 INFO L273 TraceCheckUtils]: 39: Hoare triple {1249#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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1249#false} is VALID [2018-11-23 12:56:48,084 INFO L273 TraceCheckUtils]: 40: Hoare triple {1249#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);call #t~mem11.base, #t~mem11.offset := read~$Pointer$(#t~mem10.base, 4 + #t~mem10.offset, 4);~last~1.base, ~last~1.offset := #t~mem11.base, #t~mem11.offset;havoc #t~mem11.base, #t~mem11.offset;havoc #t~mem10.base, #t~mem10.offset;call write~$Pointer$(~last~1.base, ~last~1.offset, ~temp~1.base, 4 + ~temp~1.offset, 4);call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem12.base, #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1249#false} is VALID [2018-11-23 12:56:48,085 INFO L273 TraceCheckUtils]: 41: Hoare triple {1249#false} assume true; {1249#false} is VALID [2018-11-23 12:56:48,085 INFO L268 TraceCheckUtils]: 42: Hoare quadruple {1249#false} {1249#false} #83#return; {1249#false} is VALID [2018-11-23 12:56:48,085 INFO L273 TraceCheckUtils]: 43: Hoare triple {1249#false} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1249#false} is VALID [2018-11-23 12:56:48,086 INFO L273 TraceCheckUtils]: 44: Hoare triple {1249#false} assume !(~i~0 < ~len~0); {1249#false} is VALID [2018-11-23 12:56:48,086 INFO L273 TraceCheckUtils]: 45: Hoare triple {1249#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1249#false} is VALID [2018-11-23 12:56:48,086 INFO L273 TraceCheckUtils]: 46: Hoare triple {1249#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {1249#false} is VALID [2018-11-23 12:56:48,086 INFO L273 TraceCheckUtils]: 47: Hoare triple {1249#false} assume !false; {1249#false} is VALID [2018-11-23 12:56:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 12:56:48,111 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:56:48,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 30 [2018-11-23 12:56:48,111 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 48 [2018-11-23 12:56:48,112 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:56:48,112 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 30 states. [2018-11-23 12:56:48,286 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:48,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-23 12:56:48,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-23 12:56:48,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2018-11-23 12:56:48,288 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 30 states. [2018-11-23 12:56:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:53,138 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2018-11-23 12:56:53,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-23 12:56:53,139 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 48 [2018-11-23 12:56:53,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:56:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 12:56:53,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 85 transitions. [2018-11-23 12:56:53,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 12:56:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 85 transitions. [2018-11-23 12:56:53,148 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 85 transitions. [2018-11-23 12:56:53,336 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:56:53,340 INFO L225 Difference]: With dead ends: 78 [2018-11-23 12:56:53,340 INFO L226 Difference]: Without dead ends: 63 [2018-11-23 12:56:53,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=145, Invalid=1661, Unknown=0, NotChecked=0, Total=1806 [2018-11-23 12:56:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-23 12:56:53,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2018-11-23 12:56:53,406 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:56:53,406 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 53 states. [2018-11-23 12:56:53,406 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 53 states. [2018-11-23 12:56:53,407 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 53 states. [2018-11-23 12:56:53,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:53,412 INFO L93 Difference]: Finished difference Result 63 states and 77 transitions. [2018-11-23 12:56:53,412 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2018-11-23 12:56:53,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:53,413 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:53,413 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 63 states. [2018-11-23 12:56:53,413 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 63 states. [2018-11-23 12:56:53,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:56:53,417 INFO L93 Difference]: Finished difference Result 63 states and 77 transitions. [2018-11-23 12:56:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2018-11-23 12:56:53,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:56:53,417 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:56:53,418 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:56:53,418 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:56:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-23 12:56:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2018-11-23 12:56:53,420 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 48 [2018-11-23 12:56:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:56:53,421 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2018-11-23 12:56:53,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-11-23 12:56:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2018-11-23 12:56:53,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-23 12:56:53,424 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:56:53,425 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] [2018-11-23 12:56:53,428 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:56:53,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:56:53,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1545890147, now seen corresponding path program 1 times [2018-11-23 12:56:53,429 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:56:53,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:56:53,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:53,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:53,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:56:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:55,043 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2018-11-23 12:56:55,577 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-11-23 12:56:56,137 INFO L256 TraceCheckUtils]: 0: Hoare triple {1759#true} call ULTIMATE.init(); {1759#true} is VALID [2018-11-23 12:56:56,137 INFO L273 TraceCheckUtils]: 1: Hoare triple {1759#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {1759#true} is VALID [2018-11-23 12:56:56,138 INFO L273 TraceCheckUtils]: 2: Hoare triple {1759#true} assume true; {1759#true} is VALID [2018-11-23 12:56:56,138 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1759#true} {1759#true} #89#return; {1759#true} is VALID [2018-11-23 12:56:56,138 INFO L256 TraceCheckUtils]: 4: Hoare triple {1759#true} call #t~ret16 := main(); {1759#true} is VALID [2018-11-23 12:56:56,144 INFO L273 TraceCheckUtils]: 5: Hoare triple {1759#true} ~len~0 := 2;~data~0 := 1;call ~#s~0.base, ~#s~0.offset := #Ultimate.alloc(4); {1761#(= (select |#valid| |main_~#s~0.base|) 1)} is VALID [2018-11-23 12:56:56,145 INFO L256 TraceCheckUtils]: 6: Hoare triple {1761#(= (select |#valid| |main_~#s~0.base|) 1)} call #t~ret13.base, #t~ret13.offset := dll_circular_create(~len~0, ~data~0); {1762#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:56:56,145 INFO L273 TraceCheckUtils]: 7: Hoare triple {1762#(= |#valid| |old(#valid)|)} ~len := #in~len;~data := #in~data; {1762#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:56:56,146 INFO L256 TraceCheckUtils]: 8: Hoare triple {1762#(= |#valid| |old(#valid)|)} call #t~ret3.base, #t~ret3.offset := node_create(~data); {1762#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:56:56,147 INFO L273 TraceCheckUtils]: 9: Hoare triple {1762#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1763#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} is VALID [2018-11-23 12:56:56,148 INFO L273 TraceCheckUtils]: 10: Hoare triple {1763#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1763#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} is VALID [2018-11-23 12:56:56,149 INFO L273 TraceCheckUtils]: 11: Hoare triple {1763#(and (= (select |#valid| node_create_~temp~0.base) 1) (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1764#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} is VALID [2018-11-23 12:56:56,149 INFO L273 TraceCheckUtils]: 12: Hoare triple {1764#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} assume true; {1764#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} is VALID [2018-11-23 12:56:56,151 INFO L268 TraceCheckUtils]: 13: Hoare quadruple {1764#(and (= (select |#valid| |node_create_#res.base|) 1) (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} {1762#(= |#valid| |old(#valid)|)} #85#return; {1765#(and (= (select |#valid| |dll_circular_create_#t~ret3.base|) 1) (= 0 (select |old(#valid)| |dll_circular_create_#t~ret3.base|)) (= 0 |dll_circular_create_#t~ret3.offset|))} is VALID [2018-11-23 12:56:56,152 INFO L273 TraceCheckUtils]: 14: Hoare triple {1765#(and (= (select |#valid| |dll_circular_create_#t~ret3.base|) 1) (= 0 (select |old(#valid)| |dll_circular_create_#t~ret3.base|)) (= 0 |dll_circular_create_#t~ret3.offset|))} ~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; {1766#(and (= (select |#valid| dll_circular_create_~head~0.base) 1) (= 0 (select |old(#valid)| dll_circular_create_~head~0.base)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset))} is VALID [2018-11-23 12:56:56,153 INFO L273 TraceCheckUtils]: 15: Hoare triple {1766#(and (= (select |#valid| dll_circular_create_~head~0.base) 1) (= 0 (select |old(#valid)| dll_circular_create_~head~0.base)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset))} assume !!(~len > 1); {1766#(and (= (select |#valid| dll_circular_create_~head~0.base) 1) (= 0 (select |old(#valid)| dll_circular_create_~head~0.base)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset))} is VALID [2018-11-23 12:56:56,154 INFO L256 TraceCheckUtils]: 16: Hoare triple {1766#(and (= (select |#valid| dll_circular_create_~head~0.base) 1) (= 0 (select |old(#valid)| dll_circular_create_~head~0.base)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset))} call #t~ret4.base, #t~ret4.offset := node_create(~data); {1762#(= |#valid| |old(#valid)|)} is VALID [2018-11-23 12:56:56,155 INFO L273 TraceCheckUtils]: 17: Hoare triple {1762#(= |#valid| |old(#valid)|)} ~data := #in~data;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(12);~temp~0.base, ~temp~0.offset := #t~malloc2.base, #t~malloc2.offset; {1767#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} is VALID [2018-11-23 12:56:56,156 INFO L273 TraceCheckUtils]: 18: Hoare triple {1767#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} assume !(0 == ~temp~0.base && 0 == ~temp~0.offset); {1767#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} is VALID [2018-11-23 12:56:56,157 INFO L273 TraceCheckUtils]: 19: Hoare triple {1767#(and (= 0 (select |old(#valid)| node_create_~temp~0.base)) (= 0 node_create_~temp~0.offset))} call write~$Pointer$(0, 0, ~temp~0.base, ~temp~0.offset, 4);call write~$Pointer$(0, 0, ~temp~0.base, 4 + ~temp~0.offset, 4);call write~int(~data, ~temp~0.base, 8 + ~temp~0.offset, 4);#res.base, #res.offset := ~temp~0.base, ~temp~0.offset; {1768#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} is VALID [2018-11-23 12:56:56,158 INFO L273 TraceCheckUtils]: 20: Hoare triple {1768#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} assume true; {1768#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} is VALID [2018-11-23 12:56:56,160 INFO L268 TraceCheckUtils]: 21: Hoare quadruple {1768#(and (= 0 (select |old(#valid)| |node_create_#res.base|)) (= 0 |node_create_#res.offset|))} {1766#(and (= (select |#valid| dll_circular_create_~head~0.base) 1) (= 0 (select |old(#valid)| dll_circular_create_~head~0.base)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset))} #87#return; {1769#(and (= 0 |dll_circular_create_#t~ret4.offset|) (not (= dll_circular_create_~head~0.base |dll_circular_create_#t~ret4.base|)) (= 0 (select |old(#valid)| dll_circular_create_~head~0.base)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset))} is VALID [2018-11-23 12:56:56,162 INFO L273 TraceCheckUtils]: 22: Hoare triple {1769#(and (= 0 |dll_circular_create_#t~ret4.offset|) (not (= dll_circular_create_~head~0.base |dll_circular_create_#t~ret4.base|)) (= 0 (select |old(#valid)| dll_circular_create_~head~0.base)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset))} ~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); {1770#(and (= dll_circular_create_~last~0.base (select (select (store |#memory_$Pointer$.base| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.base)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~last~0.offset) (= 0 (select |old(#valid)| (select (select (store |#memory_$Pointer$.base| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.base)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset))) (= 0 dll_circular_create_~new_head~0.offset) (= (select (select (store |#memory_$Pointer$.offset| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.offset)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset) dll_circular_create_~last~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} is VALID [2018-11-23 12:56:56,164 INFO L273 TraceCheckUtils]: 23: Hoare triple {1770#(and (= dll_circular_create_~last~0.base (select (select (store |#memory_$Pointer$.base| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.base)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~last~0.offset) (= 0 (select |old(#valid)| (select (select (store |#memory_$Pointer$.base| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.base)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset))) (= 0 dll_circular_create_~new_head~0.offset) (= (select (select (store |#memory_$Pointer$.offset| dll_circular_create_~head~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~new_head~0.offset)) dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset) dll_circular_create_~last~0.offset) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} assume ~head~0.base != 0 || ~head~0.offset != 0;call write~$Pointer$(~new_head~0.base, ~new_head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); {1771#(and (= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset))) (= 0 dll_circular_create_~last~0.offset) (= dll_circular_create_~last~0.offset (select (select |#memory_$Pointer$.offset| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= dll_circular_create_~last~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~new_head~0.offset) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} is VALID [2018-11-23 12:56:56,165 INFO L273 TraceCheckUtils]: 24: Hoare triple {1771#(and (= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset))) (= 0 dll_circular_create_~last~0.offset) (= dll_circular_create_~last~0.offset (select (select |#memory_$Pointer$.offset| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= dll_circular_create_~last~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (= 0 dll_circular_create_~new_head~0.offset) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)))} ~head~0.base, ~head~0.offset := ~new_head~0.base, ~new_head~0.offset;#t~post5 := ~len;~len := #t~post5 - 1;havoc #t~post5; {1772#(and (= 0 (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~last~0.offset (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= dll_circular_create_~last~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))) (= 0 (select |old(#valid)| (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} is VALID [2018-11-23 12:56:56,166 INFO L273 TraceCheckUtils]: 25: Hoare triple {1772#(and (= 0 (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~last~0.offset (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= dll_circular_create_~last~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))) (= 0 (select |old(#valid)| (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} assume !(~len > 1); {1772#(and (= 0 (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~last~0.offset (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= dll_circular_create_~last~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))) (= 0 (select |old(#valid)| (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} is VALID [2018-11-23 12:56:56,168 INFO L273 TraceCheckUtils]: 26: Hoare triple {1772#(and (= 0 (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= 0 dll_circular_create_~head~0.offset) (= dll_circular_create_~last~0.offset (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (= dll_circular_create_~last~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset)) (not (= dll_circular_create_~head~0.base (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))) (= 0 (select |old(#valid)| (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) (+ dll_circular_create_~head~0.offset 4) dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset))))} call write~$Pointer$(~head~0.base, ~head~0.offset, ~last~0.base, ~last~0.offset, 4);call write~$Pointer$(~last~0.base, ~last~0.offset, ~head~0.base, 4 + ~head~0.offset, 4);#res.base, #res.offset := ~head~0.base, ~head~0.offset; {1773#(and (= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= 0 |dll_circular_create_#res.offset|) (= (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) 4)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) 4) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:56:56,169 INFO L273 TraceCheckUtils]: 27: Hoare triple {1773#(and (= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= 0 |dll_circular_create_#res.offset|) (= (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) 4)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) 4) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} assume true; {1773#(and (= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= 0 |dll_circular_create_#res.offset|) (= (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) 4)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) 4) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} is VALID [2018-11-23 12:56:56,171 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {1773#(and (= 0 (select |old(#valid)| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= 0 |dll_circular_create_#res.offset|) (= (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) 4)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|))) (= (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) 4) (select (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |dll_circular_create_#res.base|) |dll_circular_create_#res.offset|)))} {1761#(= (select |#valid| |main_~#s~0.base|) 1)} #81#return; {1774#(and (= (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) 4) (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (= 0 |main_#t~ret13.offset|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|))) (= (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) |main_#t~ret13.offset|) (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) 4)))} is VALID [2018-11-23 12:56:56,173 INFO L273 TraceCheckUtils]: 29: Hoare triple {1774#(and (= (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) 4) (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (= 0 |main_#t~ret13.offset|) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) |main_#t~ret13.offset|)) (not (= |main_~#s~0.base| (select (select |#memory_$Pointer$.base| |main_#t~ret13.base|) |main_#t~ret13.offset|))) (= (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) |main_#t~ret13.offset|) (select (select |#memory_$Pointer$.offset| |main_#t~ret13.base|) 4)))} call write~init~$Pointer$(#t~ret13.base, #t~ret13.offset, ~#s~0.base, ~#s~0.offset, 4);havoc #t~ret13.base, #t~ret13.offset;~i~0 := 0; {1775#(and (not (= (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|))) (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_$Pointer$.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_$Pointer$.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| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4)) (= 0 (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|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (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|)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4) (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 12:56:56,180 INFO L273 TraceCheckUtils]: 30: Hoare triple {1775#(and (not (= (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|))) (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_$Pointer$.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_$Pointer$.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| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4)) (= 0 (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|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (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|)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4) (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); {1775#(and (not (= (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|))) (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_$Pointer$.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_$Pointer$.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| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4)) (= 0 (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|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (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|)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4) (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 12:56:56,181 INFO L256 TraceCheckUtils]: 31: Hoare triple {1775#(and (not (= (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|))) (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_$Pointer$.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_$Pointer$.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| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4)) (= 0 (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|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (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|)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4) (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 dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1776#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:56:56,182 INFO L273 TraceCheckUtils]: 32: Hoare triple {1776#(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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1777#(and (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (or (and (or (= dll_circular_remove_first_~temp~1.base dll_circular_remove_first_~head.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) dll_circular_remove_first_~temp~1.offset)) (= dll_circular_remove_first_~temp~1.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or (not (= (+ dll_circular_remove_first_~temp~1.offset 4) 0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) dll_circular_remove_first_~temp~1.offset))) (not (= (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset) 0))) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:56:56,188 INFO L273 TraceCheckUtils]: 33: Hoare triple {1777#(and (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (or (and (or (= dll_circular_remove_first_~temp~1.base dll_circular_remove_first_~head.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) dll_circular_remove_first_~temp~1.offset)) (= dll_circular_remove_first_~temp~1.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or (not (= (+ dll_circular_remove_first_~temp~1.offset 4) 0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) dll_circular_remove_first_~temp~1.offset))) (not (= (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset) 0))) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.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);call #t~mem11.base, #t~mem11.offset := read~$Pointer$(#t~mem10.base, 4 + #t~mem10.offset, 4);~last~1.base, ~last~1.offset := #t~mem11.base, #t~mem11.offset;havoc #t~mem11.base, #t~mem11.offset;havoc #t~mem10.base, #t~mem10.offset;call write~$Pointer$(~last~1.base, ~last~1.offset, ~temp~1.base, 4 + ~temp~1.offset, 4);call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem12.base, #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1778#(or (not (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) |dll_circular_remove_first_#in~head.base|) (not (= (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) 0)) (and (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (or (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)) (and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (not (= (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (and (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)))) (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))))))} is VALID [2018-11-23 12:56:56,192 INFO L273 TraceCheckUtils]: 34: Hoare triple {1778#(or (not (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) |dll_circular_remove_first_#in~head.base|) (not (= (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) 0)) (and (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (or (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)) (and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (not (= (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (and (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)))) (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))))))} assume true; {1778#(or (not (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) |dll_circular_remove_first_#in~head.base|) (not (= (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) 0)) (and (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (or (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)) (and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (not (= (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (and (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)))) (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))))))} is VALID [2018-11-23 12:56:56,199 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {1778#(or (not (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) |dll_circular_remove_first_#in~head.base|) (not (= (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) 0)) (and (= (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 4))) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (or (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)) (and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (not (= (@diff (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (and (= (select (select |#memory_$Pointer$.offset| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) 0)))) (and (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (store (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))) (or (not (= (@diff (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))) 0)) (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))))))))} {1775#(and (not (= (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|))) (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_$Pointer$.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_$Pointer$.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| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4)) (= 0 (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|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (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|)))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) 4) (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|))))} #83#return; {1779#(and (= (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|)) (= (select (select |#memory_$Pointer$.offset| |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|))))} is VALID [2018-11-23 12:56:56,219 INFO L273 TraceCheckUtils]: 36: Hoare triple {1779#(and (= (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|)) (= (select (select |#memory_$Pointer$.offset| |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|))))} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1779#(and (= (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|)) (= (select (select |#memory_$Pointer$.offset| |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|))))} is VALID [2018-11-23 12:56:56,220 INFO L273 TraceCheckUtils]: 37: Hoare triple {1779#(and (= (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|)) (= (select (select |#memory_$Pointer$.offset| |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|))))} assume !!(~i~0 < ~len~0); {1779#(and (= (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|)) (= (select (select |#memory_$Pointer$.offset| |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|))))} is VALID [2018-11-23 12:56:56,233 INFO L256 TraceCheckUtils]: 38: Hoare triple {1779#(and (= (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|)) (= (select (select |#memory_$Pointer$.offset| |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|))))} call dll_circular_remove_first(~#s~0.base, ~#s~0.offset); {1776#(and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:56:56,239 INFO L273 TraceCheckUtils]: 39: Hoare triple {1776#(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~mem7.base, #t~mem7.offset;havoc #t~mem6.base, #t~mem6.offset;call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~head.base, ~head.offset, 4); {1780#(and (= |dll_circular_remove_first_#t~mem8.offset| (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.base|) (= |dll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (= dll_circular_remove_first_~temp~1.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= dll_circular_remove_first_~temp~1.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2018-11-23 12:56:56,241 INFO L273 TraceCheckUtils]: 40: Hoare triple {1780#(and (= |dll_circular_remove_first_#t~mem8.offset| (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (= dll_circular_remove_first_~head.offset |dll_circular_remove_first_#in~head.offset|) (= dll_circular_remove_first_~head.base |dll_circular_remove_first_#in~head.base|) (= |dll_circular_remove_first_#t~mem8.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (= dll_circular_remove_first_~temp~1.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= dll_circular_remove_first_~temp~1.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset)) (select (select |#memory_$Pointer$.offset| dll_circular_remove_first_~head.base) dll_circular_remove_first_~head.offset))) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.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);call #t~mem11.base, #t~mem11.offset := read~$Pointer$(#t~mem10.base, 4 + #t~mem10.offset, 4);~last~1.base, ~last~1.offset := #t~mem11.base, #t~mem11.offset;havoc #t~mem11.base, #t~mem11.offset;havoc #t~mem10.base, #t~mem10.offset;call write~$Pointer$(~last~1.base, ~last~1.offset, ~temp~1.base, 4 + ~temp~1.offset, 4);call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~last~1.base, ~last~1.offset, 4);call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~head.base, ~head.offset, 4);call ULTIMATE.dealloc(#t~mem12.base, #t~mem12.offset);havoc #t~mem12.base, #t~mem12.offset;call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); {1781#(or (not (= (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))} is VALID [2018-11-23 12:56:56,241 INFO L273 TraceCheckUtils]: 41: Hoare triple {1781#(or (not (= (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))} assume true; {1781#(or (not (= (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))} is VALID [2018-11-23 12:56:56,242 INFO L268 TraceCheckUtils]: 42: Hoare quadruple {1781#(or (not (= (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|) (select (select |old(#memory_$Pointer$.base)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)))) (not (= (select (select |old(#memory_$Pointer$.offset)| (select (select |old(#memory_$Pointer$.base)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|)) (select (select |old(#memory_$Pointer$.offset)| |dll_circular_remove_first_#in~head.base|) |dll_circular_remove_first_#in~head.offset|))))} {1779#(and (= (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|)) (= (select (select |#memory_$Pointer$.offset| |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|))))} #83#return; {1760#false} is VALID [2018-11-23 12:56:56,242 INFO L273 TraceCheckUtils]: 43: Hoare triple {1760#false} #t~post14 := ~i~0;~i~0 := 1 + #t~post14;havoc #t~post14; {1760#false} is VALID [2018-11-23 12:56:56,243 INFO L273 TraceCheckUtils]: 44: Hoare triple {1760#false} assume !(~i~0 < ~len~0); {1760#false} is VALID [2018-11-23 12:56:56,243 INFO L273 TraceCheckUtils]: 45: Hoare triple {1760#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); {1760#false} is VALID [2018-11-23 12:56:56,243 INFO L273 TraceCheckUtils]: 46: Hoare triple {1760#false} assume 0 != #t~mem15.base || 0 != #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {1760#false} is VALID [2018-11-23 12:56:56,244 INFO L273 TraceCheckUtils]: 47: Hoare triple {1760#false} assume !false; {1760#false} is VALID [2018-11-23 12:56:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 12:56:56,260 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:56:56,260 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 12:56:56,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:56:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:56:56,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:56:56,395 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 12:56:56,397 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:56,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:56,407 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 12:56:56,409 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 12:56:56,409 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#valid_29|]. (and (= |#valid| (store |v_#valid_29| |main_~#s~0.base| 1)) (= |main_~#s~0.offset| 0)) [2018-11-23 12:56:56,409 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= |main_~#s~0.offset| 0) (= (select |#valid| |main_~#s~0.base|) 1)) [2018-11-23 12:56:56,781 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 8 [2018-11-23 12:56:56,787 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 8 treesize of output 7 [2018-11-23 12:56:56,789 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:56,792 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:56,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 8 [2018-11-23 12:56:56,824 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 8 treesize of output 7 [2018-11-23 12:56:56,826 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:56,828 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:56,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:56,847 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:48, output treesize:40 [2018-11-23 12:56:57,004 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,012 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 12:56:57,019 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 12:56:57,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,028 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,058 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 28 [2018-11-23 12:56:57,069 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 12:56:57,070 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,078 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,096 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,097 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:56, output treesize:56 [2018-11-23 12:56:57,332 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,337 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2018-11-23 12:56:57,349 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 54 [2018-11-23 12:56:57,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,386 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,391 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,394 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,396 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 83 [2018-11-23 12:56:57,413 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,442 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2018-11-23 12:56:57,450 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 12:56:57,495 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,517 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,570 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,581 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 63 [2018-11-23 12:56:57,588 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 20 treesize of output 27 [2018-11-23 12:56:57,590 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,614 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 63 [2018-11-23 12:56:57,636 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:56:57,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 20 treesize of output 31 [2018-11-23 12:56:57,638 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,655 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,668 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:56:57,700 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:123, output treesize:126 [2018-11-23 12:57:00,204 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 12:57:00,205 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_$Pointer$.offset_33|, dll_circular_create_~last~0.base, |v_#memory_$Pointer$.base_36|]. (let ((.cse3 (select |v_#memory_$Pointer$.base_36| dll_circular_create_~last~0.base))) (let ((.cse4 (select .cse3 4))) (let ((.cse1 (+ |dll_circular_create_#res.offset| 4)) (.cse5 (select (select |v_#memory_$Pointer$.base_36| .cse4) 0))) (and (= (let ((.cse0 (store |v_#memory_$Pointer$.offset_33| dll_circular_create_~last~0.base (store (select |v_#memory_$Pointer$.offset_33| dll_circular_create_~last~0.base) 0 |dll_circular_create_#res.offset|)))) (store .cse0 |dll_circular_create_#res.base| (store (select .cse0 |dll_circular_create_#res.base|) .cse1 0))) |#memory_$Pointer$.offset|) (= |#memory_$Pointer$.base| (let ((.cse2 (store |v_#memory_$Pointer$.base_36| dll_circular_create_~last~0.base (store .cse3 0 |dll_circular_create_#res.base|)))) (store .cse2 |dll_circular_create_#res.base| (store (select .cse2 |dll_circular_create_#res.base|) .cse1 dll_circular_create_~last~0.base)))) (= |dll_circular_create_#res.base| .cse4) (= (select |old(#valid)| dll_circular_create_~last~0.base) 0) (= 0 |dll_circular_create_#res.offset|) (= 0 (select (store |old(#valid)| dll_circular_create_~last~0.base 1) .cse4)) (= (select (select |v_#memory_$Pointer$.offset_33| .cse5) 4) 0) (= .cse5 dll_circular_create_~last~0.base) (= 0 (select (select |v_#memory_$Pointer$.offset_33| .cse4) 0)))))) [2018-11-23 12:57:00,205 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse8 (select |#memory_$Pointer$.base| |dll_circular_create_#res.base|))) (let ((.cse1 (select .cse8 0))) (let ((.cse5 (+ |dll_circular_create_#res.offset| 4)) (.cse7 (select |#memory_$Pointer$.base| .cse1))) (let ((.cse2 (select .cse7 0)) (.cse4 (select .cse8 .cse5))) (let ((.cse3 (select |#memory_$Pointer$.offset| .cse4)) (.cse0 (select |#memory_$Pointer$.offset| .cse2)) (.cse6 (select .cse7 4))) (and (= 0 (select .cse0 0)) (= 0 (select |old(#valid)| .cse1)) (= 0 |dll_circular_create_#res.offset|) (= |dll_circular_create_#res.base| .cse2) (= (select .cse3 4) 0) (= .cse1 .cse4) (= |dll_circular_create_#res.offset| (select .cse3 |dll_circular_create_#res.offset|)) (= (select .cse0 .cse5) 0) (= |dll_circular_create_#res.base| .cse6) (= 0 (select (store |old(#valid)| .cse1 1) .cse6)))))))) [2018-11-23 12:57:00,507 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:00,508 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:00,509 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:00,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2018-11-23 12:57:00,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 12:57:00,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 12:57:00,549 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:134, output treesize:136 [2018-11-23 12:57:01,375 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 12:57:01,378 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,381 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,394 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,399 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,408 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,420 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,421 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 936 treesize of output 720 [2018-11-23 12:57:01,525 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 12:57:01,686 INFO L303 Elim1Store]: Index analysis took 186 ms [2018-11-23 12:57:01,707 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 180 treesize of output 247 [2018-11-23 12:57:01,722 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 12:57:01,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,895 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,898 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,899 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 12:57:01,914 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,917 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,922 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,925 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,937 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 718 treesize of output 638 [2018-11-23 12:57:01,978 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,995 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,998 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:01,998 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 12:57:02,020 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:02,021 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 12:57:02,041 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 374 [2018-11-23 12:57:02,063 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 12:57:02,262 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:02,265 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:02,267 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:02,269 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:02,277 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:02,278 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 12:57:02,283 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 614 treesize of output 521 [2018-11-23 12:57:02,451 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 577 treesize of output 524 [2018-11-23 12:57:02,672 INFO L267 ElimStorePlain]: Start of recursive call 7: 16 dim-0 vars, End of recursive call: 16 dim-0 vars, and 9 xjuncts.