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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure_true-termination.c_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-18e5b2d-m [2018-11-18 21:49:40,555 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 21:49:40,560 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 21:49:40,573 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 21:49:40,573 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 21:49:40,574 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 21:49:40,575 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 21:49:40,577 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 21:49:40,579 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 21:49:40,580 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 21:49:40,581 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 21:49:40,581 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 21:49:40,582 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 21:49:40,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 21:49:40,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 21:49:40,585 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 21:49:40,586 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 21:49:40,588 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 21:49:40,590 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 21:49:40,591 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 21:49:40,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 21:49:40,594 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 21:49:40,596 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 21:49:40,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 21:49:40,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 21:49:40,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 21:49:40,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 21:49:40,600 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 21:49:40,601 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 21:49:40,602 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 21:49:40,602 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 21:49:40,603 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 21:49:40,604 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 21:49:40,604 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 21:49:40,605 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 21:49:40,606 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 21:49:40,606 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 21:49:40,621 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 21:49:40,622 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 21:49:40,623 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 21:49:40,623 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 21:49:40,623 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 21:49:40,624 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 21:49:40,624 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 21:49:40,624 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 21:49:40,624 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 21:49:40,624 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 21:49:40,625 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 21:49:40,625 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 21:49:40,625 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 21:49:40,625 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 21:49:40,625 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 21:49:40,626 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 21:49:40,626 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 21:49:40,626 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 21:49:40,626 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 21:49:40,626 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 21:49:40,626 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 21:49:40,627 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 21:49:40,627 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 21:49:40,627 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 21:49:40,627 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 21:49:40,627 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 21:49:40,628 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 21:49:40,628 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 21:49:40,628 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 21:49:40,628 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 21:49:40,628 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 21:49:40,629 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 21:49:40,629 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 21:49:40,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 21:49:40,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 21:49:40,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 21:49:40,709 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 21:49:40,709 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 21:49:40,710 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_true-termination.c_true-unreach-call.i [2018-11-18 21:49:40,771 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a342cbac/e951777a08724388be777a1b4a37ee2e/FLAGcfe8aecff [2018-11-18 21:49:41,190 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 21:49:41,191 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_true-termination.c_true-unreach-call.i [2018-11-18 21:49:41,197 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a342cbac/e951777a08724388be777a1b4a37ee2e/FLAGcfe8aecff [2018-11-18 21:49:41,586 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a342cbac/e951777a08724388be777a1b4a37ee2e [2018-11-18 21:49:41,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 21:49:41,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-18 21:49:41,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 21:49:41,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 21:49:41,607 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 21:49:41,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:41,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77612a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41, skipping insertion in model container [2018-11-18 21:49:41,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:41,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 21:49:41,650 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 21:49:41,914 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:49:41,931 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 21:49:41,955 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:49:41,976 INFO L195 MainTranslator]: Completed translation [2018-11-18 21:49:41,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41 WrapperNode [2018-11-18 21:49:41,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 21:49:41,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 21:49:41,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 21:49:41,979 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 21:49:41,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:41,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:42,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:42,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:42,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:42,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:42,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (1/1) ... [2018-11-18 21:49:42,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 21:49:42,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 21:49:42,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 21:49:42,031 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 21:49:42,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (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 [2018-11-18 21:49:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 21:49:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 21:49:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-18 21:49:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 21:49:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 21:49:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-18 21:49:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 21:49:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 21:49:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 21:49:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 21:49:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 21:49:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 21:49:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 21:49:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 21:49:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 21:49:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 21:49:42,734 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 21:49:42,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:49:42 BoogieIcfgContainer [2018-11-18 21:49:42,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 21:49:42,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 21:49:42,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 21:49:42,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 21:49:42,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:49:41" (1/3) ... [2018-11-18 21:49:42,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f42ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:49:42, skipping insertion in model container [2018-11-18 21:49:42,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:49:41" (2/3) ... [2018-11-18 21:49:42,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f42ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:49:42, skipping insertion in model container [2018-11-18 21:49:42,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:49:42" (3/3) ... [2018-11-18 21:49:42,743 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_structure_true-termination.c_true-unreach-call.i [2018-11-18 21:49:42,753 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 21:49:42,761 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 21:49:42,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 21:49:42,826 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 21:49:42,827 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 21:49:42,827 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 21:49:42,827 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 21:49:42,827 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 21:49:42,828 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 21:49:42,828 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 21:49:42,828 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 21:49:42,829 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 21:49:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 21:49:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 21:49:42,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:49:42,854 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:49:42,856 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:49:42,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:49:42,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1215743292, now seen corresponding path program 1 times [2018-11-18 21:49:42,869 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:49:42,870 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:49:42,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:49:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:49:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:49:42,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:49:43,392 INFO L256 TraceCheckUtils]: 0: Hoare triple {20#true} call ULTIMATE.init(); {20#true} is VALID [2018-11-18 21:49:43,397 INFO L273 TraceCheckUtils]: 1: Hoare triple {20#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {20#true} is VALID [2018-11-18 21:49:43,398 INFO L273 TraceCheckUtils]: 2: Hoare triple {20#true} assume true; {20#true} is VALID [2018-11-18 21:49:43,399 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {20#true} {20#true} #19#return; {20#true} is VALID [2018-11-18 21:49:43,400 INFO L256 TraceCheckUtils]: 4: Hoare triple {20#true} call #t~ret5 := main(); {20#true} is VALID [2018-11-18 21:49:43,417 INFO L273 TraceCheckUtils]: 5: Hoare triple {20#true} call ~#im~0.base, ~#im~0.offset := #Ultimate.alloc(4bv32);call write~unchecked~intINTTYPE4(0bv32, ~#im~0.base, ~#im~0.offset, 4bv32);call write~unchecked~intINTTYPE4(3bv32, ~#im~0.base, ~#im~0.offset, 4bv32);call ~#inner~0.base, ~#inner~0.offset := #Ultimate.alloc(8bv32);call write~unchecked~intINTTYPE4(0bv32, ~#inner~0.base, ~#inner~0.offset, 4bv32);call write~$Pointer$(0bv32, 0bv32, ~#inner~0.base, ~bvadd32(4bv32, ~#inner~0.offset), 4bv32);call write~unchecked~intINTTYPE4(2bv32, ~#inner~0.base, ~#inner~0.offset, 4bv32);call write~$Pointer$(~#im~0.base, ~#im~0.offset, ~#inner~0.base, ~bvadd32(4bv32, ~#inner~0.offset), 4bv32);call ~#good~0.base, ~#good~0.offset := #Ultimate.alloc(8bv32);call write~unchecked~intINTTYPE4(0bv32, ~#good~0.base, ~#good~0.offset, 4bv32);call write~$Pointer$(0bv32, 0bv32, ~#good~0.base, ~bvadd32(4bv32, ~#good~0.offset), 4bv32);call write~unchecked~intINTTYPE4(1bv32, ~#good~0.base, ~#good~0.offset, 4bv32);call write~$Pointer$(~#inner~0.base, ~#inner~0.offset, ~#good~0.base, ~bvadd32(4bv32, ~#good~0.offset), 4bv32);call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~#good~0.base, ~bvadd32(4bv32, ~#good~0.offset), 4bv32);call #t~mem1.base, #t~mem1.offset := read~$Pointer$(#t~mem0.base, ~bvadd32(4bv32, #t~mem0.offset), 4bv32);call write~intINTTYPE4(4bv32, #t~mem1.base, #t~mem1.offset, 4bv32);havoc #t~mem0.base, #t~mem0.offset;havoc #t~mem1.base, #t~mem1.offset;call #t~mem2.base, #t~mem2.offset := read~$Pointer$(~#good~0.base, ~bvadd32(4bv32, ~#good~0.offset), 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(#t~mem2.base, ~bvadd32(4bv32, #t~mem2.offset), 4bv32);call #t~mem4 := read~intINTTYPE4(#t~mem3.base, #t~mem3.offset, 4bv32); {40#(= (_ bv4 32) |main_#t~mem4|)} is VALID [2018-11-18 21:49:43,420 INFO L273 TraceCheckUtils]: 6: Hoare triple {40#(= (_ bv4 32) |main_#t~mem4|)} assume !(4bv32 == #t~mem4); {21#false} is VALID [2018-11-18 21:49:43,420 INFO L256 TraceCheckUtils]: 7: Hoare triple {21#false} call __blast_assert(); {21#false} is VALID [2018-11-18 21:49:43,421 INFO L273 TraceCheckUtils]: 8: Hoare triple {21#false} assume !false; {21#false} is VALID [2018-11-18 21:49:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:49:43,423 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:49:43,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:49:43,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:49:43,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 21:49:43,435 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:49:43,438 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:49:43,488 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:49:43,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:49:43,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:49:43,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:49:43,499 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-18 21:49:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:49:43,752 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-18 21:49:43,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:49:43,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 21:49:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:49:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:49:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2018-11-18 21:49:43,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:49:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2018-11-18 21:49:43,770 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 21 transitions. [2018-11-18 21:49:43,831 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:49:43,838 INFO L225 Difference]: With dead ends: 22 [2018-11-18 21:49:43,838 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 21:49:43,842 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:49:43,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 21:49:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 21:49:43,864 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:49:43,864 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-18 21:49:43,865 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-18 21:49:43,865 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-18 21:49:43,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:49:43,866 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 21:49:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 21:49:43,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:49:43,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:49:43,867 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-18 21:49:43,867 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-18 21:49:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:49:43,867 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 21:49:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 21:49:43,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:49:43,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:49:43,868 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:49:43,868 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:49:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 21:49:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 21:49:43,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-18 21:49:43,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:49:43,870 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 21:49:43,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:49:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 21:49:43,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:49:43,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 21:49:44,238 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 21:49:44,238 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 21:49:44,238 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 21:49:44,238 INFO L425 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 7 10) no Hoare annotation was computed. [2018-11-18 21:49:44,239 INFO L425 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 7 10) no Hoare annotation was computed. [2018-11-18 21:49:44,239 INFO L428 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 7 10) the Hoare annotation is: true [2018-11-18 21:49:44,239 INFO L425 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-18 21:49:44,239 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 21:49:44,239 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 21:49:44,240 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 21:49:44,240 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 21:49:44,240 INFO L425 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-18 21:49:44,240 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 24 32) the Hoare annotation is: true [2018-11-18 21:49:44,240 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 24 32) no Hoare annotation was computed. [2018-11-18 21:49:44,240 INFO L421 ceAbstractionStarter]: At program point L30-2(line 30) the Hoare annotation is: false [2018-11-18 21:49:44,240 INFO L425 ceAbstractionStarter]: For program point L30-3(line 30) no Hoare annotation was computed. [2018-11-18 21:49:44,241 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 24 32) no Hoare annotation was computed. [2018-11-18 21:49:44,243 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-18 21:49:44,243 WARN L170 areAnnotationChecker]: __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-18 21:49:44,243 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2018-11-18 21:49:44,243 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2018-11-18 21:49:44,244 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-18 21:49:44,244 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-18 21:49:44,244 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2018-11-18 21:49:44,244 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2018-11-18 21:49:44,244 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2018-11-18 21:49:44,244 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-18 21:49:44,244 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-18 21:49:44,245 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2018-11-18 21:49:44,245 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2018-11-18 21:49:44,245 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2018-11-18 21:49:44,245 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-18 21:49:44,245 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-18 21:49:44,245 INFO L163 areAnnotationChecker]: CFG has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-18 21:49:44,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:49:44 BoogieIcfgContainer [2018-11-18 21:49:44,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 21:49:44,250 INFO L168 Benchmark]: Toolchain (without parser) took 2652.09 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 698.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -675.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2018-11-18 21:49:44,253 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 21:49:44,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.79 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-18 21:49:44,255 INFO L168 Benchmark]: Boogie Preprocessor took 51.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 21:49:44,255 INFO L168 Benchmark]: RCFGBuilder took 704.10 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 698.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -736.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-18 21:49:44,257 INFO L168 Benchmark]: TraceAbstraction took 1512.71 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. [2018-11-18 21:49:44,261 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.79 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 704.10 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 698.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -736.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1512.71 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 8 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 13 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...