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_Bitvector.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_2_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:26:40,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:26:40,778 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:26:40,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:26:40,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:26:40,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:26:40,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:26:40,796 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:26:40,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:26:40,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:26:40,801 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:26:40,804 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:26:40,805 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:26:40,806 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:26:40,810 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:26:40,811 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:26:40,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:26:40,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:26:40,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:26:40,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:26:40,828 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:26:40,830 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:26:40,833 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:26:40,833 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:26:40,837 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:26:40,838 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:26:40,839 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:26:40,839 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:26:40,840 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:26:40,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:26:40,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:26:40,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-23 11:26:40,848 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 [2018-11-23 11:26:40,872 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:26:40,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:26:40,873 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:26:40,874 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:26:40,874 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:26:40,874 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:26:40,875 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:26:40,875 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:26:40,875 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:26:40,875 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:26:40,876 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:26:40,876 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:26:40,876 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:26:40,876 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:26:40,876 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:26:40,877 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:26:40,877 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:26:40,877 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:26:40,877 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:26:40,877 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:26:40,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:26:40,878 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:26:40,878 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:26:40,878 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:26:40,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:26:40,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:26:40,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:26:40,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:26:40,879 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:26:40,879 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:26:40,880 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:26:40,880 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:26:40,880 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:26:40,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:26:40,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:26:40,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:26:40,974 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:26:40,974 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:26:40,975 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-23 11:26:41,036 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21f257a6c/f85bccf5359f41fb86fe76dddbc0c440/FLAG7891740a1 [2018-11-23 11:26:41,519 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:26:41,520 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-23 11:26:41,525 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21f257a6c/f85bccf5359f41fb86fe76dddbc0c440/FLAG7891740a1 [2018-11-23 11:26:41,889 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21f257a6c/f85bccf5359f41fb86fe76dddbc0c440 [2018-11-23 11:26:41,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:26:41,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:26:41,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:26:41,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:26:41,907 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:26:41,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:26:41" (1/1) ... [2018-11-23 11:26:41,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703a52da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:41, skipping insertion in model container [2018-11-23 11:26:41,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:26:41" (1/1) ... [2018-11-23 11:26:41,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:26:41,946 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:26:42,130 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:26:42,138 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:26:42,155 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:26:42,172 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:26:42,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42 WrapperNode [2018-11-23 11:26:42,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:26:42,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:26:42,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:26:42,174 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:26:42,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:26:42,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:26:42,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:26:42,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:26:42,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (1/1) ... [2018-11-23 11:26:42,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:26:42,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:26:42,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:26:42,226 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:26:42,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (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 11:26:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:26:42,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:26:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:26:42,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:26:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:26:42,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:26:42,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 11:26:42,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 11:26:42,697 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:26:42,697 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 11:26:42,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:26:42 BoogieIcfgContainer [2018-11-23 11:26:42,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:26:42,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:26:42,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:26:42,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:26:42,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:26:41" (1/3) ... [2018-11-23 11:26:42,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72564387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:26:42, skipping insertion in model container [2018-11-23 11:26:42,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:42" (2/3) ... [2018-11-23 11:26:42,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72564387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:26:42, skipping insertion in model container [2018-11-23 11:26:42,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:26:42" (3/3) ... [2018-11-23 11:26:42,710 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-23 11:26:42,719 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:26:42,729 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:26:42,748 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:26:42,786 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:26:42,787 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:26:42,787 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:26:42,787 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:26:42,788 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:26:42,788 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:26:42,788 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:26:42,788 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:26:42,788 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:26:42,812 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 11:26:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 11:26:42,822 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:26:42,823 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:26:42,826 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:26:42,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:26:42,832 INFO L82 PathProgramCache]: Analyzing trace with hash -10313984, now seen corresponding path program 1 times [2018-11-23 11:26:42,835 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:26:42,836 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 [2018-11-23 11:26:42,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:26:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:26:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:26:42,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:26:42,965 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-23 11:26:42,968 INFO L273 TraceCheckUtils]: 1: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-23 11:26:42,969 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} #32#return; {21#true} is VALID [2018-11-23 11:26:42,969 INFO L256 TraceCheckUtils]: 3: Hoare triple {21#true} call #t~ret0 := main(); {21#true} is VALID [2018-11-23 11:26:42,970 INFO L273 TraceCheckUtils]: 4: Hoare triple {21#true} ~x~0 := 0bv32; {21#true} is VALID [2018-11-23 11:26:42,978 INFO L273 TraceCheckUtils]: 5: Hoare triple {21#true} assume !true; {22#false} is VALID [2018-11-23 11:26:42,978 INFO L256 TraceCheckUtils]: 6: Hoare triple {22#false} call __VERIFIER_assert((if 0bv32 == ~x~0 then 1bv32 else 0bv32)); {22#false} is VALID [2018-11-23 11:26:42,979 INFO L273 TraceCheckUtils]: 7: Hoare triple {22#false} ~cond := #in~cond; {22#false} is VALID [2018-11-23 11:26:42,979 INFO L273 TraceCheckUtils]: 8: Hoare triple {22#false} assume 0bv32 == ~cond; {22#false} is VALID [2018-11-23 11:26:42,979 INFO L273 TraceCheckUtils]: 9: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-23 11:26:42,982 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 11:26:42,982 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:26:42,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:26:42,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 11:26:42,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 11:26:42,994 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:26:42,998 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 11:26:43,048 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 11:26:43,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 11:26:43,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 11:26:43,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 11:26:43,063 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-11-23 11:26:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:26:43,139 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2018-11-23 11:26:43,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 11:26:43,140 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 11:26:43,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:26:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 11:26:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 33 transitions. [2018-11-23 11:26:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 11:26:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 33 transitions. [2018-11-23 11:26:43,154 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 33 transitions. [2018-11-23 11:26:43,368 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:26:43,380 INFO L225 Difference]: With dead ends: 26 [2018-11-23 11:26:43,380 INFO L226 Difference]: Without dead ends: 13 [2018-11-23 11:26:43,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 11:26:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-23 11:26:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-23 11:26:43,473 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:26:43,473 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 13 states. [2018-11-23 11:26:43,474 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2018-11-23 11:26:43,474 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2018-11-23 11:26:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:26:43,478 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-11-23 11:26:43,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-23 11:26:43,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:26:43,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:26:43,479 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2018-11-23 11:26:43,479 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2018-11-23 11:26:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:26:43,482 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-11-23 11:26:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-23 11:26:43,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:26:43,483 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:26:43,483 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:26:43,484 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:26:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 11:26:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-23 11:26:43,488 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-11-23 11:26:43,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:26:43,488 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-23 11:26:43,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 11:26:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-23 11:26:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 11:26:43,489 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:26:43,490 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:26:43,490 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:26:43,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:26:43,490 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2018-11-23 11:26:43,491 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:26:43,491 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:26:43,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:26:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:26:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:26:43,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:26:43,735 INFO L256 TraceCheckUtils]: 0: Hoare triple {135#true} call ULTIMATE.init(); {135#true} is VALID [2018-11-23 11:26:43,735 INFO L273 TraceCheckUtils]: 1: Hoare triple {135#true} assume true; {135#true} is VALID [2018-11-23 11:26:43,735 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {135#true} {135#true} #32#return; {135#true} is VALID [2018-11-23 11:26:43,736 INFO L256 TraceCheckUtils]: 3: Hoare triple {135#true} call #t~ret0 := main(); {135#true} is VALID [2018-11-23 11:26:43,736 INFO L273 TraceCheckUtils]: 4: Hoare triple {135#true} ~x~0 := 0bv32; {152#(= main_~x~0 (_ bv0 32))} is VALID [2018-11-23 11:26:43,737 INFO L273 TraceCheckUtils]: 5: Hoare triple {152#(= main_~x~0 (_ bv0 32))} assume !false; {152#(= main_~x~0 (_ bv0 32))} is VALID [2018-11-23 11:26:43,738 INFO L256 TraceCheckUtils]: 6: Hoare triple {152#(= main_~x~0 (_ bv0 32))} call __VERIFIER_assert((if 0bv32 == ~x~0 then 1bv32 else 0bv32)); {159#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:26:43,739 INFO L273 TraceCheckUtils]: 7: Hoare triple {159#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} ~cond := #in~cond; {163#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:26:43,746 INFO L273 TraceCheckUtils]: 8: Hoare triple {163#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~cond; {136#false} is VALID [2018-11-23 11:26:43,746 INFO L273 TraceCheckUtils]: 9: Hoare triple {136#false} assume !false; {136#false} is VALID [2018-11-23 11:26:43,747 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 11:26:43,748 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:26:43,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:26:43,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 11:26:43,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-23 11:26:43,757 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:26:43,758 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 11:26:43,781 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 11:26:43,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 11:26:43,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 11:26:43,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 11:26:43,783 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2018-11-23 11:26:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:26:44,048 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-11-23 11:26:44,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 11:26:44,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-23 11:26:44,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:26:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 11:26:44,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-11-23 11:26:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 11:26:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-11-23 11:26:44,053 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 13 transitions. [2018-11-23 11:26:44,087 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:26:44,088 INFO L225 Difference]: With dead ends: 13 [2018-11-23 11:26:44,088 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:26:44,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:26:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:26:44,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:26:44,091 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:26:44,091 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 11:26:44,091 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:26:44,091 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:26:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:26:44,092 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:26:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:26:44,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:26:44,092 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:26:44,093 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:26:44,093 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:26:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:26:44,093 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:26:44,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:26:44,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:26:44,094 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:26:44,094 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:26:44,094 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:26:44,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:26:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:26:44,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-23 11:26:44,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:26:44,095 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:26:44,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 11:26:44,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:26:44,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:26:44,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 11:26:44,283 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 11:26:44,283 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:26:44,283 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:26:44,284 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 11:26:44,284 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:26:44,284 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:26:44,284 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 9 18) the Hoare annotation is: true [2018-11-23 11:26:44,284 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 18) no Hoare annotation was computed. [2018-11-23 11:26:44,285 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= main_~x~0 (_ bv0 32)) [2018-11-23 11:26:44,285 INFO L444 ceAbstractionStarter]: At program point L14-1(lines 12 15) the Hoare annotation is: (= main_~x~0 (_ bv0 32)) [2018-11-23 11:26:44,285 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 9 18) no Hoare annotation was computed. [2018-11-23 11:26:44,285 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 15) the Hoare annotation is: false [2018-11-23 11:26:44,285 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 11:26:44,286 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 11:26:44,286 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 11:26:44,286 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 11:26:44,286 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 11:26:44,286 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 11:26:44,288 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:26:44,290 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 11:26:44,290 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:26:44,290 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:26:44,297 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 11:26:44,297 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 11:26:44,297 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:26:44,297 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:26:44,297 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 11:26:44,297 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 11:26:44,298 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2018-11-23 11:26:44,298 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:26:44,298 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-23 11:26:44,298 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-23 11:26:44,298 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 11:26:44,298 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 11:26:44,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:26:44 BoogieIcfgContainer [2018-11-23 11:26:44,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:26:44,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:26:44,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:26:44,307 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:26:44,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:26:42" (3/4) ... [2018-11-23 11:26:44,311 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:26:44,318 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 11:26:44,319 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 11:26:44,319 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 11:26:44,324 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 11:26:44,324 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 11:26:44,324 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:26:44,372 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loops/while_infinite_loop_2_true-unreach-call_false-termination.i-witness.graphml [2018-11-23 11:26:44,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:26:44,374 INFO L168 Benchmark]: Toolchain (without parser) took 2473.71 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 697.3 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -640.1 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2018-11-23 11:26:44,376 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. [2018-11-23 11:26:44,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.40 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 11:26:44,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.18 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 11:26:44,378 INFO L168 Benchmark]: Boogie Preprocessor took 26.54 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 11:26:44,379 INFO L168 Benchmark]: RCFGBuilder took 472.32 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 697.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -739.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-23 11:26:44,380 INFO L168 Benchmark]: TraceAbstraction took 1602.83 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 88.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2018-11-23 11:26:44,381 INFO L168 Benchmark]: Witness Printer took 65.53 ms. Allocated memory is still 2.2 GB. Free memory is still 2.0 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 11:26:44,386 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 270.40 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 25.18 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 26.54 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 472.32 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 697.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -739.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1602.83 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 88.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. * Witness Printer took 65.53 ms. Allocated memory is still 2.2 GB. Free memory is still 2.0 GB. There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: x == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 12 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 2 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...