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/forester-heap/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 12:55:48,674 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:55:48,676 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:55:48,689 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:55:48,689 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:55:48,690 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:55:48,692 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:55:48,694 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:55:48,696 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:55:48,697 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:55:48,698 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:55:48,698 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:55:48,699 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:55:48,700 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:55:48,705 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:55:48,706 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:55:48,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:55:48,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:55:48,719 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:55:48,723 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:55:48,727 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:55:48,729 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:55:48,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:55:48,739 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:55:48,739 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:55:48,740 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:55:48,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:55:48,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:55:48,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:55:48,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:55:48,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:55:48,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:55:48,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:55:48,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:55:48,753 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:55:48,754 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:55:48,754 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 12:55:48,790 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:55:48,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:55:48,791 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:55:48,791 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:55:48,792 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:55:48,792 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:55:48,792 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:55:48,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:55:48,793 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:55:48,793 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:55:48,793 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:55:48,793 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:55:48,794 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:55:48,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:55:48,794 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:55:48,794 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:55:48,794 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:55:48,795 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:55:48,796 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:55:48,796 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:55:48,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:55:48,796 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:55:48,797 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:55:48,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:55:48,797 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:55:48,797 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:55:48,797 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:55:48,798 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:55:48,798 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:55:48,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:55:48,799 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:55:48,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:55:48,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:55:48,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:55:48,898 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:55:48,898 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:55:48,899 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-11-23 12:55:48,966 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cd4d7e6f/329cc77d09aa4d4cbef46d9c590c0969/FLAGb06df6c77 [2018-11-23 12:55:49,508 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:55:49,509 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-11-23 12:55:49,523 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cd4d7e6f/329cc77d09aa4d4cbef46d9c590c0969/FLAGb06df6c77 [2018-11-23 12:55:49,773 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cd4d7e6f/329cc77d09aa4d4cbef46d9c590c0969 [2018-11-23 12:55:49,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:55:49,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:55:49,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:55:49,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:55:49,792 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:55:49,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:55:49" (1/1) ... [2018-11-23 12:55:49,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1443edea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:49, skipping insertion in model container [2018-11-23 12:55:49,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:55:49" (1/1) ... [2018-11-23 12:55:49,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:55:49,872 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:55:50,278 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:55:50,289 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:55:50,372 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:55:50,437 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:55:50,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50 WrapperNode [2018-11-23 12:55:50,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:55:50,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:55:50,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:55:50,439 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:55:50,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:55:50,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:55:50,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:55:50,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:55:50,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (1/1) ... [2018-11-23 12:55:50,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:55:50,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:55:50,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:55:50,594 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:55:50,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (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 12:55:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:55:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 12:55:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 12:55:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:55:50,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:55:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:55:50,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:55:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 12:55:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 12:55:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 12:55:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:55:50,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:55:51,669 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:55:51,670 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 12:55:51,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:55:51 BoogieIcfgContainer [2018-11-23 12:55:51,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:55:51,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:55:51,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:55:51,675 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:55:51,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:55:49" (1/3) ... [2018-11-23 12:55:51,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b68f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:55:51, skipping insertion in model container [2018-11-23 12:55:51,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:50" (2/3) ... [2018-11-23 12:55:51,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b68f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:55:51, skipping insertion in model container [2018-11-23 12:55:51,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:55:51" (3/3) ... [2018-11-23 12:55:51,679 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-11-23 12:55:51,690 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:55:51,697 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:55:51,715 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:55:51,756 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:55:51,757 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:55:51,757 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:55:51,758 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:55:51,758 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:55:51,758 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:55:51,758 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:55:51,758 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:55:51,758 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:55:51,777 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-23 12:55:51,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 12:55:51,784 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:55:51,785 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:55:51,789 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:55:51,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:55:51,798 INFO L82 PathProgramCache]: Analyzing trace with hash 208036314, now seen corresponding path program 1 times [2018-11-23 12:55:51,800 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:55:51,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:55:51,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:51,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:55:51,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:55:51,968 INFO L256 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {34#true} is VALID [2018-11-23 12:55:51,971 INFO L273 TraceCheckUtils]: 1: Hoare triple {34#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {34#true} is VALID [2018-11-23 12:55:51,972 INFO L273 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2018-11-23 12:55:51,972 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #112#return; {34#true} is VALID [2018-11-23 12:55:51,972 INFO L256 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret17 := main(); {34#true} is VALID [2018-11-23 12:55:51,973 INFO L273 TraceCheckUtils]: 5: Hoare triple {34#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4);call write~int(0, ~head~0.base, 4 + ~head~0.offset, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {34#true} is VALID [2018-11-23 12:55:51,975 INFO L273 TraceCheckUtils]: 6: Hoare triple {34#true} assume !true; {35#false} is VALID [2018-11-23 12:55:51,975 INFO L273 TraceCheckUtils]: 7: Hoare triple {35#false} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {35#false} is VALID [2018-11-23 12:55:51,975 INFO L273 TraceCheckUtils]: 8: Hoare triple {35#false} assume 0 != #t~nondet4;havoc #t~nondet4;call #t~malloc5.base, #t~malloc5.offset := #Ultimate.alloc(8);~x~0.base, ~x~0.offset := #t~malloc5.base, #t~malloc5.offset;call write~int(1, ~x~0.base, 4 + ~x~0.offset, 4);call write~$Pointer$(~head~0.base, ~head~0.offset, ~x~0.base, ~x~0.offset, 4);~head~0.base, ~head~0.offset := ~x~0.base, ~x~0.offset; {35#false} is VALID [2018-11-23 12:55:51,976 INFO L273 TraceCheckUtils]: 9: Hoare triple {35#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {35#false} is VALID [2018-11-23 12:55:51,976 INFO L273 TraceCheckUtils]: 10: Hoare triple {35#false} assume !true; {35#false} is VALID [2018-11-23 12:55:51,976 INFO L273 TraceCheckUtils]: 11: Hoare triple {35#false} call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~x~0.base, ~x~0.offset, 4);~x~0.base, ~x~0.offset := #t~mem13.base, #t~mem13.offset;havoc #t~mem13.base, #t~mem13.offset; {35#false} is VALID [2018-11-23 12:55:51,977 INFO L273 TraceCheckUtils]: 12: Hoare triple {35#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0);call #t~mem14 := read~int(~x~0.base, 4 + ~x~0.offset, 4); {35#false} is VALID [2018-11-23 12:55:51,977 INFO L273 TraceCheckUtils]: 13: Hoare triple {35#false} assume 1 == #t~mem14;havoc #t~mem14; {35#false} is VALID [2018-11-23 12:55:51,977 INFO L273 TraceCheckUtils]: 14: Hoare triple {35#false} assume !false; {35#false} is VALID [2018-11-23 12:55:51,981 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 12:55:51,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:55:51,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 12:55:51,988 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-23 12:55:51,991 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:55:51,994 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 12:55:52,078 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:55:52,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 12:55:52,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 12:55:52,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 12:55:52,090 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-11-23 12:55:52,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:55:52,285 INFO L93 Difference]: Finished difference Result 53 states and 80 transitions. [2018-11-23 12:55:52,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 12:55:52,286 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-23 12:55:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:55:52,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 12:55:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 80 transitions. [2018-11-23 12:55:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 12:55:52,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 80 transitions. [2018-11-23 12:55:52,306 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 80 transitions. [2018-11-23 12:55:52,650 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:55:52,664 INFO L225 Difference]: With dead ends: 53 [2018-11-23 12:55:52,664 INFO L226 Difference]: Without dead ends: 23 [2018-11-23 12:55:52,668 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 12:55:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-23 12:55:52,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-23 12:55:52,730 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:55:52,731 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2018-11-23 12:55:52,731 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2018-11-23 12:55:52,732 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2018-11-23 12:55:52,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:55:52,736 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2018-11-23 12:55:52,736 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-11-23 12:55:52,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:55:52,737 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:55:52,737 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2018-11-23 12:55:52,738 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2018-11-23 12:55:52,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:55:52,742 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2018-11-23 12:55:52,742 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-11-23 12:55:52,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:55:52,743 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:55:52,743 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:55:52,744 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:55:52,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 12:55:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-11-23 12:55:52,748 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 15 [2018-11-23 12:55:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:55:52,749 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-23 12:55:52,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 12:55:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-11-23 12:55:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 12:55:52,750 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:55:52,750 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:55:52,750 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:55:52,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:55:52,751 INFO L82 PathProgramCache]: Analyzing trace with hash 592716228, now seen corresponding path program 1 times [2018-11-23 12:55:52,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:55:52,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:55:52,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:52,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:55:52,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:55:53,613 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: zero is neutral element of plus operator at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:87) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.lambda$0(UltimateNormalFormUtils.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker$MyWalker.walk(SubtermPropertyChecker.java:63) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker.isPropertySatisfied(SubtermPropertyChecker.java:121) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.respectsUltimateNormalForm(UltimateNormalFormUtils.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:103) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.constructNewPredicate(PredicateUnifier.java:375) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:592) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 12:55:53,617 INFO L168 Benchmark]: Toolchain (without parser) took 3831.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -685.9 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:53,619 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 12:55:53,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:53,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -809.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:53,622 INFO L168 Benchmark]: Boogie Preprocessor took 44.87 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 12:55:53,623 INFO L168 Benchmark]: RCFGBuilder took 1077.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:53,624 INFO L168 Benchmark]: TraceAbstraction took 1944.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:53,629 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 108.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -809.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.87 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1077.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1944.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: zero is neutral element of plus operator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: zero is neutral element of plus operator: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:87) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...