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/dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 12:55:41,803 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:55:41,805 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:55:41,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:55:41,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:55:41,819 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:55:41,820 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:55:41,822 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:55:41,824 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:55:41,825 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:55:41,826 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:55:41,826 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:55:41,827 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:55:41,828 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:55:41,830 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:55:41,830 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:55:41,831 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:55:41,833 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:55:41,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:55:41,837 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:55:41,838 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:55:41,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:55:41,842 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:55:41,842 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:55:41,842 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:55:41,843 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:55:41,844 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:55:41,845 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:55:41,846 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:55:41,847 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:55:41,847 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:55:41,848 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-23 12:55:41,854 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 12:55:41,883 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:55:41,883 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:55:41,884 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:55:41,884 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:55:41,888 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:55:41,888 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:55:41,888 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:55:41,888 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:55:41,889 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:55:41,889 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:55:41,889 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:55:41,889 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:55:41,889 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:55:41,889 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:55:41,890 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:55:41,890 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:55:41,890 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:55:41,890 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:55:41,890 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:55:41,892 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:55:41,892 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:55:41,892 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:55:41,892 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:55:41,892 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:55:41,893 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:55:41,893 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:55:41,893 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:55:41,894 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:55:41,894 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:55:41,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:55:41,894 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:55:41,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:55:41,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:55:41,976 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:55:41,978 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:55:41,978 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:55:41,979 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-11-23 12:55:42,052 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fd8a810/fdac603903fb42afae9b6acb0c23bb48/FLAG6d43ff42e [2018-11-23 12:55:42,572 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:55:42,572 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-11-23 12:55:42,591 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fd8a810/fdac603903fb42afae9b6acb0c23bb48/FLAG6d43ff42e [2018-11-23 12:55:42,852 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fd8a810/fdac603903fb42afae9b6acb0c23bb48 [2018-11-23 12:55:42,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:55:42,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:55:42,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:55:42,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:55:42,868 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:55:42,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:55:42" (1/1) ... [2018-11-23 12:55:42,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2082b675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:42, skipping insertion in model container [2018-11-23 12:55:42,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:55:42" (1/1) ... [2018-11-23 12:55:42,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:55:42,940 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:55:43,352 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:55:43,365 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:55:43,436 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:55:43,496 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:55:43,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43 WrapperNode [2018-11-23 12:55:43,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:55:43,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:55:43,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:55:43,498 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:55:43,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:55:43,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:55:43,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:55:43,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:55:43,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (1/1) ... [2018-11-23 12:55:43,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:55:43,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:55:43,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:55:43,699 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:55:43,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (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 12:55:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:55:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 12:55:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 12:55:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:55:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:55:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:55:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:55:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 12:55:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 12:55:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 12:55:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:55:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:55:44,799 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:55:44,800 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 12:55:44,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:55:44 BoogieIcfgContainer [2018-11-23 12:55:44,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:55:44,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:55:44,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:55:44,805 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:55:44,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:55:42" (1/3) ... [2018-11-23 12:55:44,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4080d1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:55:44, skipping insertion in model container [2018-11-23 12:55:44,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:43" (2/3) ... [2018-11-23 12:55:44,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4080d1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:55:44, skipping insertion in model container [2018-11-23 12:55:44,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:55:44" (3/3) ... [2018-11-23 12:55:44,809 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-11-23 12:55:44,819 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:55:44,828 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:55:44,846 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:55:44,877 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:55:44,878 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:55:44,879 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:55:44,879 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:55:44,879 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:55:44,879 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:55:44,879 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:55:44,880 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:55:44,880 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:55:44,900 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-23 12:55:44,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 12:55:44,907 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:55:44,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:55:44,911 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:55:44,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:55:44,917 INFO L82 PathProgramCache]: Analyzing trace with hash -445630561, now seen corresponding path program 1 times [2018-11-23 12:55:44,919 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:55:44,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:55:44,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:44,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:55:44,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:55:45,096 INFO L256 TraceCheckUtils]: 0: Hoare triple {35#true} call ULTIMATE.init(); {35#true} is VALID [2018-11-23 12:55:45,101 INFO L273 TraceCheckUtils]: 1: Hoare triple {35#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {35#true} is VALID [2018-11-23 12:55:45,102 INFO L273 TraceCheckUtils]: 2: Hoare triple {35#true} assume true; {35#true} is VALID [2018-11-23 12:55:45,103 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {35#true} {35#true} #117#return; {35#true} is VALID [2018-11-23 12:55:45,103 INFO L256 TraceCheckUtils]: 4: Hoare triple {35#true} call #t~ret19 := main(); {35#true} is VALID [2018-11-23 12:55:45,103 INFO L273 TraceCheckUtils]: 5: Hoare triple {35#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(12);~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~$Pointer$(0, 0, ~head~0.base, 4 + ~head~0.offset, 4);call write~int(0, ~head~0.base, 8 + ~head~0.offset, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {35#true} is VALID [2018-11-23 12:55:45,105 INFO L273 TraceCheckUtils]: 6: Hoare triple {35#true} assume !true; {36#false} is VALID [2018-11-23 12:55:45,105 INFO L273 TraceCheckUtils]: 7: Hoare triple {36#false} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {36#false} is VALID [2018-11-23 12:55:45,105 INFO L273 TraceCheckUtils]: 8: Hoare triple {36#false} assume 0 != #t~nondet5;havoc #t~nondet5;call #t~malloc6.base, #t~malloc6.offset := #Ultimate.alloc(12);~x~0.base, ~x~0.offset := #t~malloc6.base, #t~malloc6.offset;call write~int(1, ~x~0.base, 8 + ~x~0.offset, 4);call write~$Pointer$(~head~0.base, ~head~0.offset, ~x~0.base, ~x~0.offset, 4);call write~$Pointer$(0, 0, ~x~0.base, 4 + ~x~0.offset, 4);~head~0.base, ~head~0.offset := ~x~0.base, ~x~0.offset; {36#false} is VALID [2018-11-23 12:55:45,106 INFO L273 TraceCheckUtils]: 9: Hoare triple {36#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {36#false} is VALID [2018-11-23 12:55:45,106 INFO L273 TraceCheckUtils]: 10: Hoare triple {36#false} assume !true; {36#false} is VALID [2018-11-23 12:55:45,106 INFO L273 TraceCheckUtils]: 11: Hoare triple {36#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~x~0.base, ~x~0.offset, 4);~x~0.base, ~x~0.offset := #t~mem15.base, #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {36#false} is VALID [2018-11-23 12:55:45,106 INFO L273 TraceCheckUtils]: 12: Hoare triple {36#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0);call #t~mem16 := read~int(~x~0.base, 8 + ~x~0.offset, 4); {36#false} is VALID [2018-11-23 12:55:45,107 INFO L273 TraceCheckUtils]: 13: Hoare triple {36#false} assume 1 == #t~mem16;havoc #t~mem16; {36#false} is VALID [2018-11-23 12:55:45,107 INFO L273 TraceCheckUtils]: 14: Hoare triple {36#false} assume !false; {36#false} is VALID [2018-11-23 12:55:45,111 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 12:55:45,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:55:45,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 12:55:45,118 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-23 12:55:45,121 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:55:45,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 12:55:45,336 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 12:55:45,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 12:55:45,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 12:55:45,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 12:55:45,350 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-23 12:55:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:55:45,664 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions. [2018-11-23 12:55:45,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 12:55:45,664 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-23 12:55:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:55:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 12:55:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2018-11-23 12:55:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 12:55:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2018-11-23 12:55:45,683 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 84 transitions. [2018-11-23 12:55:46,083 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 84 edges. 84 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:55:46,094 INFO L225 Difference]: With dead ends: 55 [2018-11-23 12:55:46,095 INFO L226 Difference]: Without dead ends: 24 [2018-11-23 12:55:46,098 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 12:55:46,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-23 12:55:46,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-23 12:55:46,137 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:55:46,138 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand 24 states. [2018-11-23 12:55:46,138 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2018-11-23 12:55:46,138 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2018-11-23 12:55:46,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:55:46,143 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2018-11-23 12:55:46,143 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-11-23 12:55:46,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:55:46,144 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:55:46,144 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2018-11-23 12:55:46,144 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2018-11-23 12:55:46,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:55:46,149 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2018-11-23 12:55:46,149 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-11-23 12:55:46,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:55:46,150 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:55:46,150 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:55:46,150 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:55:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 12:55:46,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2018-11-23 12:55:46,155 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 15 [2018-11-23 12:55:46,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:55:46,156 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2018-11-23 12:55:46,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 12:55:46,156 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-11-23 12:55:46,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 12:55:46,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:55:46,157 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 12:55:46,158 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:55:46,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:55:46,158 INFO L82 PathProgramCache]: Analyzing trace with hash -640042354, now seen corresponding path program 1 times [2018-11-23 12:55:46,158 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:55:46,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:55:46,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:46,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:55:46,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:55:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:55:46,562 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-11-23 12:55:46,777 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 12:55:46,783 INFO L168 Benchmark]: Toolchain (without parser) took 3920.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -685.1 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:46,784 INFO L168 Benchmark]: CDTParser took 0.21 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 12:55:46,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.01 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 12:55:46,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:46,786 INFO L168 Benchmark]: Boogie Preprocessor took 72.69 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 12:55:46,787 INFO L168 Benchmark]: RCFGBuilder took 1103.40 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2018-11-23 12:55:46,788 INFO L168 Benchmark]: TraceAbstraction took 1980.13 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 12:55:46,793 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 0.21 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 633.01 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 126.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.69 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 1103.40 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1980.13 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...