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/loops/while_infinite_loop_4_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 13:03:02,590 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:03:02,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:03:02,613 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:03:02,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:03:02,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:03:02,616 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:03:02,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:03:02,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:03:02,621 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:03:02,622 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:03:02,630 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:03:02,632 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:03:02,633 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:03:02,634 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:03:02,634 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:03:02,638 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:03:02,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:03:02,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:03:02,648 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:03:02,649 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:03:02,653 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:03:02,657 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-23 13:03:02,669 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 13:03:02,697 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:03:02,697 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:03:02,698 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:03:02,698 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:03:02,699 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:03:02,701 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:03:02,701 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:03:02,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:03:02,701 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:03:02,702 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:03:02,702 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:03:02,702 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:03:02,702 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:03:02,703 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:03:02,703 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:03:02,703 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:03:02,703 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:03:02,703 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:03:02,704 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:03:02,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:03:02,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:03:02,704 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:03:02,704 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:03:02,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:03:02,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:03:02,706 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:03:02,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:03:02,706 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:03:02,706 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:03:02,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:03:02,707 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:03:02,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:03:02,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:03:02,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:03:02,783 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:03:02,784 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:03:02,785 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-23 13:03:02,860 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b93c3c53/c0c4e50a617c494e828a9240e83a1388/FLAGa5170aa42 [2018-11-23 13:03:03,288 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:03:03,289 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-23 13:03:03,294 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b93c3c53/c0c4e50a617c494e828a9240e83a1388/FLAGa5170aa42 [2018-11-23 13:03:03,678 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b93c3c53/c0c4e50a617c494e828a9240e83a1388 [2018-11-23 13:03:03,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:03:03,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:03:03,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:03:03,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:03:03,693 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:03:03,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:03" (1/1) ... [2018-11-23 13:03:03,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31565ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:03, skipping insertion in model container [2018-11-23 13:03:03,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:03" (1/1) ... [2018-11-23 13:03:03,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:03:03,731 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:03:03,962 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:03:03,969 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:03:03,989 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:03:04,007 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:03:04,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04 WrapperNode [2018-11-23 13:03:04,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:03:04,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:03:04,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:03:04,009 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:03:04,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:03:04,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:03:04,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:03:04,036 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:03:04,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (1/1) ... [2018-11-23 13:03:04,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:03:04,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:03:04,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:03:04,066 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:03:04,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (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 13:03:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:03:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:03:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2018-11-23 13:03:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2018-11-23 13:03:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:03:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:03:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:03:04,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:03:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 13:03:04,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 13:03:04,697 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:03:04,698 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 13:03:04,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:04 BoogieIcfgContainer [2018-11-23 13:03:04,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:03:04,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:03:04,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:03:04,703 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:03:04,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:03:03" (1/3) ... [2018-11-23 13:03:04,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15890baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:03:04, skipping insertion in model container [2018-11-23 13:03:04,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:04" (2/3) ... [2018-11-23 13:03:04,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15890baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:03:04, skipping insertion in model container [2018-11-23 13:03:04,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:04" (3/3) ... [2018-11-23 13:03:04,707 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-23 13:03:04,717 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:03:04,725 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:03:04,741 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:03:04,773 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:03:04,774 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:03:04,774 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:03:04,774 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:03:04,775 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:03:04,775 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:03:04,775 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:03:04,775 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:03:04,775 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:03:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-23 13:03:04,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:03:04,803 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:03:04,804 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:03:04,806 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:03:04,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:03:04,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1783967560, now seen corresponding path program 1 times [2018-11-23 13:03:04,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:03:04,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:03:04,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:03:04,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:03:04,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:03:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:03:04,951 INFO L256 TraceCheckUtils]: 0: Hoare triple {26#true} call ULTIMATE.init(); {26#true} is VALID [2018-11-23 13:03:04,955 INFO L273 TraceCheckUtils]: 1: Hoare triple {26#true} ~x~0 := 0; {26#true} is VALID [2018-11-23 13:03:04,956 INFO L273 TraceCheckUtils]: 2: Hoare triple {26#true} assume true; {26#true} is VALID [2018-11-23 13:03:04,956 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} #45#return; {26#true} is VALID [2018-11-23 13:03:04,956 INFO L256 TraceCheckUtils]: 4: Hoare triple {26#true} call #t~ret0 := main(); {26#true} is VALID [2018-11-23 13:03:04,958 INFO L273 TraceCheckUtils]: 5: Hoare triple {26#true} assume false; {27#false} is VALID [2018-11-23 13:03:04,958 INFO L256 TraceCheckUtils]: 6: Hoare triple {27#false} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {27#false} is VALID [2018-11-23 13:03:04,959 INFO L273 TraceCheckUtils]: 7: Hoare triple {27#false} ~cond := #in~cond; {27#false} is VALID [2018-11-23 13:03:04,959 INFO L273 TraceCheckUtils]: 8: Hoare triple {27#false} assume 0 == ~cond; {27#false} is VALID [2018-11-23 13:03:04,959 INFO L273 TraceCheckUtils]: 9: Hoare triple {27#false} assume !false; {27#false} is VALID [2018-11-23 13:03:04,962 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 13:03:04,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:03:04,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:03:04,971 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 13:03:04,975 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 13:03:04,978 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 13:03:05,035 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:03:05,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 13:03:05,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 13:03:05,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:03:05,046 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-23 13:03:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:03:05,135 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2018-11-23 13:03:05,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 13:03:05,135 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 13:03:05,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:03:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 13:03:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 47 transitions. [2018-11-23 13:03:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 13:03:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 47 transitions. [2018-11-23 13:03:05,152 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 47 transitions. [2018-11-23 13:03:05,446 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:03:05,458 INFO L225 Difference]: With dead ends: 35 [2018-11-23 13:03:05,458 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 13:03:05,462 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 13:03:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 13:03:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 13:03:05,553 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 13:03:05,554 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 17 states. [2018-11-23 13:03:05,554 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2018-11-23 13:03:05,554 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2018-11-23 13:03:05,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:03:05,558 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-23 13:03:05,558 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-23 13:03:05,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:03:05,559 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:03:05,559 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2018-11-23 13:03:05,559 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2018-11-23 13:03:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:03:05,562 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-23 13:03:05,562 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-23 13:03:05,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:03:05,563 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:03:05,563 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 13:03:05,563 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 13:03:05,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 13:03:05,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-23 13:03:05,568 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2018-11-23 13:03:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:03:05,568 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-23 13:03:05,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 13:03:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-23 13:03:05,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:03:05,569 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:03:05,569 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:03:05,570 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:03:05,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:03:05,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1698359207, now seen corresponding path program 1 times [2018-11-23 13:03:05,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:03:05,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:03:05,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:03:05,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:03:05,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:03:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:03:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:03:05,617 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|old(~x~0)|=2, ~x~0=2] [?] ~x~0 := 0; VAL [|old(~x~0)|=2, ~x~0=0] [?] assume true; VAL [|old(~x~0)|=2, ~x~0=0] [?] RET #45#return; VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [|old(~x~0)|=0, ~x~0=0] [?] assume !false; VAL [|old(~x~0)|=0, ~x~0=0] [?] CALL call eval(); VAL [|old(~x~0)|=0, ~x~0=0] [?] assume !false;~x~0 := 1; VAL [|old(~x~0)|=0, ~x~0=1] [?] assume true; VAL [|old(~x~0)|=0, ~x~0=1] [?] RET #49#return; VAL [|old(~x~0)|=0, ~x~0=1] [?] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] ensures true; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] assume !false; VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] assume !false; [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L12-L19] ensures true; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4-L6] assume 0 == ~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] ensures true; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] assume !false; VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] assume !false; [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L12-L19] ensures true; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4-L6] assume 0 == ~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L10] int x=0; VAL [\old(x)=2, x=0] [L24] COND TRUE 1 VAL [\old(x)=0, x=0] [L26] CALL eval() VAL [\old(x)=0, x=0] [L14] COND TRUE 1 [L15] x=1 VAL [\old(x)=0, x=1] [L26] RET eval() VAL [\old(x)=0, x=1] [L27] CALL __VERIFIER_assert(x==0) VAL [\old(cond)=0, \old(x)=0, x=1] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(x)=0, cond=0, x=1] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(x)=0, cond=0, x=1] ----- [2018-11-23 13:03:05,652 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2018-11-23 13:03:05,653 WARN L170 areAnnotationChecker]: evalENTRY has no Hoare annotation [2018-11-23 13:03:05,653 WARN L170 areAnnotationChecker]: evalENTRY has no Hoare annotation [2018-11-23 13:03:05,653 WARN L170 areAnnotationChecker]: evalENTRY has no Hoare annotation [2018-11-23 13:03:05,653 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-23 13:03:05,653 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-23 13:03:05,653 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2018-11-23 13:03:05,653 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2018-11-23 13:03:05,654 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2018-11-23 13:03:05,654 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2018-11-23 13:03:05,654 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 13:03:05,654 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-23 13:03:05,654 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-23 13:03:05,654 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-23 13:03:05,654 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: evalEXIT has no Hoare annotation [2018-11-23 13:03:05,655 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 13:03:05,656 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2018-11-23 13:03:05,656 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2018-11-23 13:03:05,656 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2018-11-23 13:03:05,656 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 13:03:05,656 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 13:03:05,656 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2018-11-23 13:03:05,656 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 13:03:05,657 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-23 13:03:05,657 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-23 13:03:05,657 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 13:03:05,657 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 13:03:05,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:03:05 BoogieIcfgContainer [2018-11-23 13:03:05,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:03:05,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:03:05,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:03:05,661 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:03:05,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:04" (3/4) ... [2018-11-23 13:03:05,664 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|old(~x~0)|=2, ~x~0=2] [?] ~x~0 := 0; VAL [|old(~x~0)|=2, ~x~0=0] [?] assume true; VAL [|old(~x~0)|=2, ~x~0=0] [?] RET #45#return; VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [|old(~x~0)|=0, ~x~0=0] [?] assume !false; VAL [|old(~x~0)|=0, ~x~0=0] [?] CALL call eval(); VAL [|old(~x~0)|=0, ~x~0=0] [?] assume !false;~x~0 := 1; VAL [|old(~x~0)|=0, ~x~0=1] [?] assume true; VAL [|old(~x~0)|=0, ~x~0=1] [?] RET #49#return; VAL [|old(~x~0)|=0, ~x~0=1] [?] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0, |old(~x~0)|=0, ~x~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] ensures true; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] assume !false; VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] assume !false; [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L12-L19] ensures true; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4-L6] assume 0 == ~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] ensures true; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] assume !false; VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] assume !false; [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L12-L19] ensures true; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4-L6] assume 0 == ~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~x~0)=2, ~x~0=2] [L10] ~x~0 := 0; VAL [old(~x~0)=2, ~x~0=0] [?] RET call ULTIMATE.init(); VAL [~x~0=0] [?] CALL call #t~ret0 := main(); VAL [old(~x~0)=0, ~x~0=0] [L24-L28] COND FALSE !(false) VAL [old(~x~0)=0, ~x~0=0] [L26] CALL call eval(); VAL [old(~x~0)=0, ~x~0=0] [L14-L17] COND FALSE !(false) [L15] ~x~0 := 1; VAL [old(~x~0)=0, ~x~0=1] [L26] RET call eval(); VAL [old(~x~0)=0, ~x~0=1] [L27] CALL call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); VAL [#in~cond=0, old(~x~0)=0, ~x~0=1] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L5] assert false; VAL [#in~cond=0, old(~x~0)=0, ~cond=0, ~x~0=1] [L10] int x=0; VAL [\old(x)=2, x=0] [L24] COND TRUE 1 VAL [\old(x)=0, x=0] [L26] CALL eval() VAL [\old(x)=0, x=0] [L14] COND TRUE 1 [L15] x=1 VAL [\old(x)=0, x=1] [L26] RET eval() VAL [\old(x)=0, x=1] [L27] CALL __VERIFIER_assert(x==0) VAL [\old(cond)=0, \old(x)=0, x=1] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(x)=0, cond=0, x=1] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(x)=0, cond=0, x=1] ----- [2018-11-23 13:03:05,720 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i-witness.graphml [2018-11-23 13:03:05,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:03:05,721 INFO L168 Benchmark]: Toolchain (without parser) took 2033.85 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -699.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-23 13:03:05,723 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 13:03:05,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.46 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. [2018-11-23 13:03:05,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.37 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. [2018-11-23 13:03:05,725 INFO L168 Benchmark]: Boogie Preprocessor took 29.39 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. [2018-11-23 13:03:05,726 INFO L168 Benchmark]: RCFGBuilder took 633.05 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -763.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-11-23 13:03:05,727 INFO L168 Benchmark]: TraceAbstraction took 960.67 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 7.1 GB. [2018-11-23 13:03:05,728 INFO L168 Benchmark]: Witness Printer took 59.82 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2018-11-23 13:03:05,732 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 319.46 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 Procedure Inliner took 26.37 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. * Boogie Preprocessor took 29.39 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 633.05 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -763.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 960.67 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 7.1 GB. * Witness Printer took 59.82 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int x=0; VAL [\old(x)=2, x=0] [L24] COND TRUE 1 VAL [\old(x)=0, x=0] [L26] CALL eval() VAL [\old(x)=0, x=0] [L14] COND TRUE 1 [L15] x=1 VAL [\old(x)=0, x=1] [L26] RET eval() VAL [\old(x)=0, x=1] [L27] CALL __VERIFIER_assert(x==0) VAL [\old(cond)=0, \old(x)=0, x=1] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(x)=0, cond=0, x=1] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(x)=0, cond=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 incorrect! Received shutdown request...