java -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.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-df4b876 [2018-11-06 22:52:44,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:52:44,263 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:52:44,281 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:52:44,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:52:44,283 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:52:44,284 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:52:44,287 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:52:44,290 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:52:44,292 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:52:44,293 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:52:44,295 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:52:44,297 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:52:44,298 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:52:44,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:52:44,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:52:44,303 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:52:44,313 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:52:44,319 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:52:44,320 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:52:44,322 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:52:44,327 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:52:44,330 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:52:44,330 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:52:44,331 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:52:44,333 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:52:44,334 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:52:44,335 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:52:44,335 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:52:44,340 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:52:44,340 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:52:44,342 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 22:52:44,345 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:52:44,371 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:52:44,372 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:52:44,373 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:52:44,373 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:52:44,374 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:52:44,374 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:52:44,374 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:52:44,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:52:44,377 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:52:44,377 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:52:44,378 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:52:44,378 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:52:44,378 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:52:44,378 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:52:44,378 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:52:44,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:52:44,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:52:44,379 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:52:44,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:52:44,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:52:44,381 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:52:44,381 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:52:44,381 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:52:44,381 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:52:44,382 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:52:44,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:52:44,382 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:52:44,382 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:52:44,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:52:44,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:52:44,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:52:44,470 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:52:44,470 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:52:44,471 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-06 22:52:44,531 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01fb5d1a6/fdf164f97c434eea8db5981b02b3f657/FLAG69d03e832 [2018-11-06 22:52:44,947 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:52:44,948 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-06 22:52:44,954 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01fb5d1a6/fdf164f97c434eea8db5981b02b3f657/FLAG69d03e832 [2018-11-06 22:52:44,968 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01fb5d1a6/fdf164f97c434eea8db5981b02b3f657 [2018-11-06 22:52:44,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:52:44,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:52:44,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:52:44,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:52:44,984 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:52:44,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:44" (1/1) ... [2018-11-06 22:52:44,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2073f443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:44, skipping insertion in model container [2018-11-06 22:52:44,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:44" (1/1) ... [2018-11-06 22:52:44,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:52:45,022 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:52:45,216 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:52:45,221 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:52:45,248 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:52:45,268 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:52:45,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45 WrapperNode [2018-11-06 22:52:45,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:52:45,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:52:45,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:52:45,272 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:52:45,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:52:45,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:52:45,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:52:45,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:52:45,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (1/1) ... [2018-11-06 22:52:45,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:52:45,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:52:45,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:52:45,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:52:45,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (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 [2018-11-06 22:52:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:52:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:52:45,776 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:52:45,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:45 BoogieIcfgContainer [2018-11-06 22:52:45,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:52:45,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:52:45,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:52:45,784 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:52:45,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:52:44" (1/3) ... [2018-11-06 22:52:45,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3084c724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:45, skipping insertion in model container [2018-11-06 22:52:45,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:45" (2/3) ... [2018-11-06 22:52:45,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3084c724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:45, skipping insertion in model container [2018-11-06 22:52:45,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:45" (3/3) ... [2018-11-06 22:52:45,789 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-06 22:52:45,803 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:52:45,813 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:52:45,838 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:52:45,878 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:52:45,879 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:52:45,879 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:52:45,879 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:52:45,879 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:52:45,879 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:52:45,879 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:52:45,880 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:52:45,880 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:52:45,896 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-06 22:52:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-06 22:52:45,908 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:52:45,911 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:52:45,915 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:52:45,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:52:45,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1269629357, now seen corresponding path program 1 times [2018-11-06 22:52:45,924 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:52:45,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:52:45,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:45,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:52:45,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:52:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:52:46,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:52:46,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 22:52:46,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:52:46,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:52:46,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:52:46,183 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2018-11-06 22:52:46,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:52:46,346 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-11-06 22:52:46,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:52:46,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-06 22:52:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:52:46,359 INFO L225 Difference]: With dead ends: 30 [2018-11-06 22:52:46,359 INFO L226 Difference]: Without dead ends: 12 [2018-11-06 22:52:46,363 INFO L604 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 [2018-11-06 22:52:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-06 22:52:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-06 22:52:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-06 22:52:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-06 22:52:46,400 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-11-06 22:52:46,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:52:46,401 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-06 22:52:46,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:52:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-06 22:52:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-06 22:52:46,402 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:52:46,402 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:52:46,402 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:52:46,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:52:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash 341011600, now seen corresponding path program 1 times [2018-11-06 22:52:46,403 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:52:46,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:52:46,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:46,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:52:46,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:52:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:52:46,522 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:52:46,522 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 22:52:46,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:52:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:52:46,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:52:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:52:46,926 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:52:46,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-11-06 22:52:46,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 22:52:46,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 22:52:46,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-06 22:52:46,928 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 8 states. [2018-11-06 22:52:47,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:52:47,195 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-06 22:52:47,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 22:52:47,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2018-11-06 22:52:47,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:52:47,196 INFO L225 Difference]: With dead ends: 15 [2018-11-06 22:52:47,196 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:52:47,197 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-06 22:52:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:52:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:52:47,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:52:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:52:47,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-06 22:52:47,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:52:47,199 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:52:47,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 22:52:47,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:52:47,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:52:47,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:52:47,267 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:52:47,267 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2018-11-06 22:52:47,267 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 66) no Hoare annotation was computed. [2018-11-06 22:52:47,268 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 67) no Hoare annotation was computed. [2018-11-06 22:52:47,268 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-06 22:52:47,268 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 59) no Hoare annotation was computed. [2018-11-06 22:52:47,268 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 68) no Hoare annotation was computed. [2018-11-06 22:52:47,268 INFO L428 ceAbstractionStarter]: At program point L65(lines 9 69) the Hoare annotation is: true [2018-11-06 22:52:47,268 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:52:47,269 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:52:47,269 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:52:47,269 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)))) [2018-11-06 22:52:47,269 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 61) no Hoare annotation was computed. [2018-11-06 22:52:47,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:52:47 BoogieIcfgContainer [2018-11-06 22:52:47,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:52:47,294 INFO L168 Benchmark]: Toolchain (without parser) took 2315.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -730.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2018-11-06 22:52:47,296 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:52:47,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.65 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-11-06 22:52:47,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.07 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. [2018-11-06 22:52:47,299 INFO L168 Benchmark]: Boogie Preprocessor took 25.84 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. [2018-11-06 22:52:47,299 INFO L168 Benchmark]: RCFGBuilder took 436.57 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:52:47,302 INFO L168 Benchmark]: TraceAbstraction took 1512.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 MB. Max. memory is 7.1 GB. [2018-11-06 22:52:47,309 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.65 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.07 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 25.84 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 436.57 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1512.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 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, 1.4s 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, 0.5s 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, 0.5s 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...