java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b6335f6 [2018-10-23 09:40:15,269 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 09:40:15,272 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 09:40:15,287 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 09:40:15,287 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 09:40:15,288 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 09:40:15,292 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 09:40:15,294 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 09:40:15,295 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 09:40:15,296 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 09:40:15,297 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 09:40:15,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 09:40:15,298 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 09:40:15,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 09:40:15,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 09:40:15,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 09:40:15,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 09:40:15,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 09:40:15,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 09:40:15,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 09:40:15,310 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 09:40:15,311 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 09:40:15,314 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 09:40:15,323 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 09:40:15,342 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 09:40:15,342 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 09:40:15,343 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 09:40:15,343 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 09:40:15,344 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 09:40:15,344 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 09:40:15,344 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 09:40:15,344 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 09:40:15,345 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 09:40:15,345 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 09:40:15,345 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 09:40:15,345 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 09:40:15,345 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 09:40:15,346 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 09:40:15,346 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 09:40:15,346 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 09:40:15,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 09:40:15,346 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 09:40:15,347 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 09:40:15,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 09:40:15,347 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 09:40:15,347 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 09:40:15,347 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 09:40:15,347 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 09:40:15,348 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 09:40:15,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 09:40:15,348 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 09:40:15,348 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 09:40:15,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 09:40:15,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 09:40:15,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 09:40:15,415 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 09:40:15,415 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 09:40:15,416 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-10-23 09:40:15,480 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/597bce61d/a1c7a40ed52b4aecb11b7ee482d36992/FLAG172e53e8a [2018-10-23 09:40:15,951 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 09:40:15,951 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-10-23 09:40:15,958 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/597bce61d/a1c7a40ed52b4aecb11b7ee482d36992/FLAG172e53e8a [2018-10-23 09:40:15,973 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/597bce61d/a1c7a40ed52b4aecb11b7ee482d36992 [2018-10-23 09:40:15,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 09:40:15,985 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 09:40:15,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 09:40:15,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 09:40:15,991 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 09:40:15,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:40:15" (1/1) ... [2018-10-23 09:40:15,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e64e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:15, skipping insertion in model container [2018-10-23 09:40:15,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:40:15" (1/1) ... [2018-10-23 09:40:16,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 09:40:16,040 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 09:40:16,260 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:40:16,265 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 09:40:16,283 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:40:16,296 INFO L193 MainTranslator]: Completed translation [2018-10-23 09:40:16,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16 WrapperNode [2018-10-23 09:40:16,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 09:40:16,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 09:40:16,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 09:40:16,298 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 09:40:16,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 09:40:16,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 09:40:16,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 09:40:16,331 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 09:40:16,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 09:40:16,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 09:40:16,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 09:40:16,349 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 09:40:16,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 09:40:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 09:40:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 09:40:16,752 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 09:40:16,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:40:16 BoogieIcfgContainer [2018-10-23 09:40:16,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 09:40:16,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 09:40:16,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 09:40:16,769 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 09:40:16,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:40:15" (1/3) ... [2018-10-23 09:40:16,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dd7f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:40:16, skipping insertion in model container [2018-10-23 09:40:16,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (2/3) ... [2018-10-23 09:40:16,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dd7f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:40:16, skipping insertion in model container [2018-10-23 09:40:16,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:40:16" (3/3) ... [2018-10-23 09:40:16,776 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-10-23 09:40:16,800 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 09:40:16,811 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 09:40:16,851 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 09:40:16,890 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 09:40:16,891 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 09:40:16,891 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 09:40:16,892 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 09:40:16,892 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 09:40:16,892 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 09:40:16,893 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 09:40:16,893 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 09:40:16,893 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 09:40:16,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-23 09:40:16,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-23 09:40:16,918 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:40:16,919 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:40:16,921 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:40:16,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:40:16,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1269629357, now seen corresponding path program 1 times [2018-10-23 09:40:16,930 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:40:16,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:40:16,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:16,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:40:16,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:40:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:40:17,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:40:17,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 09:40:17,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 09:40:17,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 09:40:17,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 09:40:17,190 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2018-10-23 09:40:17,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:40:17,347 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-10-23 09:40:17,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 09:40:17,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-23 09:40:17,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:40:17,359 INFO L225 Difference]: With dead ends: 30 [2018-10-23 09:40:17,360 INFO L226 Difference]: Without dead ends: 12 [2018-10-23 09:40:17,363 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-23 09:40:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-23 09:40:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-23 09:40:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-23 09:40:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-23 09:40:17,400 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-10-23 09:40:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:40:17,401 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-23 09:40:17,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 09:40:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-23 09:40:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-23 09:40:17,402 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:40:17,403 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:40:17,403 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:40:17,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:40:17,404 INFO L82 PathProgramCache]: Analyzing trace with hash 341011600, now seen corresponding path program 1 times [2018-10-23 09:40:17,404 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:40:17,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:40:17,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:17,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:40:17,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:40:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:40:17,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 09:40:17,723 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 09:40:17,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:40:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:40:17,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:40:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:40:18,127 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 09:40:18,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-10-23 09:40:18,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 09:40:18,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 09:40:18,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-23 09:40:18,129 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 8 states. [2018-10-23 09:40:18,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:40:18,413 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-10-23 09:40:18,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 09:40:18,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2018-10-23 09:40:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:40:18,414 INFO L225 Difference]: With dead ends: 15 [2018-10-23 09:40:18,416 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 09:40:18,417 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-10-23 09:40:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 09:40:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 09:40:18,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 09:40:18,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 09:40:18,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-10-23 09:40:18,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:40:18,419 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 09:40:18,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 09:40:18,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 09:40:18,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 09:40:18,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 09:40:18,494 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-23 09:40:18,494 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 66) no Hoare annotation was computed. [2018-10-23 09:40:18,494 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 67) no Hoare annotation was computed. [2018-10-23 09:40:18,494 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-10-23 09:40:18,494 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 59) no Hoare annotation was computed. [2018-10-23 09:40:18,495 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 68) no Hoare annotation was computed. [2018-10-23 09:40:18,495 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2018-10-23 09:40:18,495 INFO L428 ceAbstractionStarter]: At program point L65(lines 9 69) the Hoare annotation is: true [2018-10-23 09:40:18,495 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-23 09:40:18,495 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-23 09:40:18,496 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-23 09:40:18,496 INFO L421 ceAbstractionStarter]: At program point L41(lines 28 62) the Hoare annotation is: (or (<= (+ ULTIMATE.start_main_~main__x~0 51) ULTIMATE.start_main_~main__y~0) (and (<= (+ ULTIMATE.start_main_~main__x~0 2) ULTIMATE.start_main_~main__y~0) (<= (+ ULTIMATE.start_main_~main__x~0 4) (* 2 ULTIMATE.start_main_~main__y~0)))) [2018-10-23 09:40:18,496 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 61) no Hoare annotation was computed. [2018-10-23 09:40:18,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:40:18 BoogieIcfgContainer [2018-10-23 09:40:18,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 09:40:18,512 INFO L168 Benchmark]: Toolchain (without parser) took 2527.20 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 688.4 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -658.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:18,514 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-10-23 09:40:18,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.33 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. [2018-10-23 09:40:18,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.26 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. [2018-10-23 09:40:18,516 INFO L168 Benchmark]: Boogie Preprocessor took 18.12 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. [2018-10-23 09:40:18,517 INFO L168 Benchmark]: RCFGBuilder took 405.12 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 688.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -738.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:18,518 INFO L168 Benchmark]: TraceAbstraction took 1754.95 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:18,523 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 311.33 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 32.26 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 18.12 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 405.12 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 688.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -738.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1754.95 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 52]: 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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: main__x + 51 <= main__y || (main__x + 2 <= main__y && main__x + 4 <= 2 * main__y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 17 SDslu, 39 SDs, 0 SdLazy, 48 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 1000 SizeOfPredicates, 4 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...