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/gj2007b_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 11:59:27,577 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 11:59:27,579 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 11:59:27,597 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 11:59:27,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 11:59:27,599 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 11:59:27,600 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 11:59:27,602 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 11:59:27,603 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 11:59:27,604 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 11:59:27,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 11:59:27,606 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 11:59:27,606 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 11:59:27,607 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 11:59:27,609 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 11:59:27,609 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 11:59:27,610 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 11:59:27,612 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 11:59:27,614 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 11:59:27,616 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 11:59:27,617 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 11:59:27,618 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 11:59:27,621 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 11:59:27,629 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 [2018-10-24 11:59:27,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 11:59:27,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 11:59:27,647 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 11:59:27,647 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 11:59:27,650 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 11:59:27,650 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 11:59:27,650 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 11:59:27,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 11:59:27,651 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 11:59:27,651 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 11:59:27,651 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 11:59:27,651 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 11:59:27,651 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 11:59:27,652 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 11:59:27,653 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 11:59:27,653 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 11:59:27,653 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 11:59:27,653 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 11:59:27,654 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 11:59:27,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:59:27,654 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 11:59:27,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 11:59:27,654 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 11:59:27,655 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 11:59:27,656 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 11:59:27,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 11:59:27,656 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 11:59:27,657 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 11:59:27,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 11:59:27,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 11:59:27,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 11:59:27,732 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 11:59:27,732 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 11:59:27,733 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-10-24 11:59:27,792 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73535b3fa/0a3aaa7823ed49e7b553acb7f3f9d629/FLAG624aa4744 [2018-10-24 11:59:28,254 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 11:59:28,255 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-10-24 11:59:28,263 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73535b3fa/0a3aaa7823ed49e7b553acb7f3f9d629/FLAG624aa4744 [2018-10-24 11:59:28,287 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73535b3fa/0a3aaa7823ed49e7b553acb7f3f9d629 [2018-10-24 11:59:28,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 11:59:28,299 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 11:59:28,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 11:59:28,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 11:59:28,305 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 11:59:28,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43be0e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28, skipping insertion in model container [2018-10-24 11:59:28,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 11:59:28,344 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 11:59:28,550 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:59:28,555 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 11:59:28,576 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:59:28,596 INFO L193 MainTranslator]: Completed translation [2018-10-24 11:59:28,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28 WrapperNode [2018-10-24 11:59:28,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 11:59:28,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 11:59:28,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 11:59:28,598 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 11:59:28,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 11:59:28,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 11:59:28,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 11:59:28,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 11:59:28,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (1/1) ... [2018-10-24 11:59:28,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 11:59:28,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 11:59:28,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 11:59:28,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 11:59:28,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (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 [2018-10-24 11:59:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 11:59:28,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 11:59:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 11:59:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 11:59:29,057 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 11:59:29,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:29 BoogieIcfgContainer [2018-10-24 11:59:29,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 11:59:29,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 11:59:29,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 11:59:29,075 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 11:59:29,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:59:28" (1/3) ... [2018-10-24 11:59:29,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186cb223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:29, skipping insertion in model container [2018-10-24 11:59:29,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:28" (2/3) ... [2018-10-24 11:59:29,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186cb223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:29, skipping insertion in model container [2018-10-24 11:59:29,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:29" (3/3) ... [2018-10-24 11:59:29,085 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007b_true-unreach-call_true-termination.c.i [2018-10-24 11:59:29,108 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 11:59:29,129 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 11:59:29,170 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 11:59:29,218 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 11:59:29,219 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 11:59:29,219 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 11:59:29,219 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 11:59:29,220 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 11:59:29,220 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 11:59:29,220 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 11:59:29,220 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 11:59:29,220 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 11:59:29,238 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-24 11:59:29,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-24 11:59:29,244 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:29,245 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:29,247 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:29,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:29,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1820683113, now seen corresponding path program 1 times [2018-10-24 11:59:29,256 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:29,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:29,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:29,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:29,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:29,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:59:29,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 11:59:29,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 11:59:29,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 11:59:29,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:59:29,402 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-10-24 11:59:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:29,422 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2018-10-24 11:59:29,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 11:59:29,423 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2018-10-24 11:59:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:29,434 INFO L225 Difference]: With dead ends: 30 [2018-10-24 11:59:29,434 INFO L226 Difference]: Without dead ends: 14 [2018-10-24 11:59:29,437 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:59:29,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-24 11:59:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-24 11:59:29,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-24 11:59:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-10-24 11:59:29,480 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2018-10-24 11:59:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:29,481 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-10-24 11:59:29,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 11:59:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-24 11:59:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-24 11:59:29,483 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:29,483 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:29,484 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:29,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:29,485 INFO L82 PathProgramCache]: Analyzing trace with hash 149783550, now seen corresponding path program 1 times [2018-10-24 11:59:29,486 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:29,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:29,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:29,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:29,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:29,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:59:29,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 11:59:29,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 11:59:29,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 11:59:29,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:59:29,614 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2018-10-24 11:59:29,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:29,731 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2018-10-24 11:59:29,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:59:29,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-24 11:59:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:29,733 INFO L225 Difference]: With dead ends: 26 [2018-10-24 11:59:29,733 INFO L226 Difference]: Without dead ends: 24 [2018-10-24 11:59:29,734 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 11:59:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-24 11:59:29,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-10-24 11:59:29,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-24 11:59:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2018-10-24 11:59:29,741 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2018-10-24 11:59:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:29,742 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2018-10-24 11:59:29,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 11:59:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-10-24 11:59:29,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 11:59:29,743 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:29,743 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:29,744 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:29,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:29,744 INFO L82 PathProgramCache]: Analyzing trace with hash -757597632, now seen corresponding path program 1 times [2018-10-24 11:59:29,744 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:29,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:29,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:29,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:29,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:29,889 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:59:29,889 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 [2018-10-24 11:59:29,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:29,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:59:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:30,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 11:59:30,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-10-24 11:59:30,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 11:59:30,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 11:59:30,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-10-24 11:59:30,327 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 11 states. [2018-10-24 11:59:30,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:30,830 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-10-24 11:59:30,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 11:59:30,832 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2018-10-24 11:59:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:30,837 INFO L225 Difference]: With dead ends: 43 [2018-10-24 11:59:30,837 INFO L226 Difference]: Without dead ends: 28 [2018-10-24 11:59:30,839 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-10-24 11:59:30,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-10-24 11:59:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-10-24 11:59:30,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-24 11:59:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2018-10-24 11:59:30,852 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 13 [2018-10-24 11:59:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:30,853 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2018-10-24 11:59:30,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-24 11:59:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-10-24 11:59:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-24 11:59:30,856 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:30,856 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:30,856 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:30,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:30,857 INFO L82 PathProgramCache]: Analyzing trace with hash -748753880, now seen corresponding path program 1 times [2018-10-24 11:59:30,857 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:30,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:30,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:30,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:30,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:30,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:59:30,936 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 11:59:30,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:30,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:59:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:31,007 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 11:59:31,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-24 11:59:31,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 11:59:31,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 11:59:31,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-24 11:59:31,009 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 6 states. [2018-10-24 11:59:31,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:31,397 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2018-10-24 11:59:31,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:59:31,399 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-10-24 11:59:31,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:31,400 INFO L225 Difference]: With dead ends: 32 [2018-10-24 11:59:31,401 INFO L226 Difference]: Without dead ends: 27 [2018-10-24 11:59:31,401 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 11:59:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-24 11:59:31,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-10-24 11:59:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-24 11:59:31,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2018-10-24 11:59:31,407 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 12 [2018-10-24 11:59:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:31,407 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2018-10-24 11:59:31,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 11:59:31,408 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-10-24 11:59:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-24 11:59:31,408 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:31,409 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:31,409 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:31,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:31,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1766391954, now seen corresponding path program 1 times [2018-10-24 11:59:31,409 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:31,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:31,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:31,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:31,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-24 11:59:31,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:59:31,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 11:59:31,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 11:59:31,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 11:59:31,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-24 11:59:31,501 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 6 states. [2018-10-24 11:59:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:31,592 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2018-10-24 11:59:31,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 11:59:31,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-24 11:59:31,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:31,595 INFO L225 Difference]: With dead ends: 27 [2018-10-24 11:59:31,595 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 11:59:31,597 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 11:59:31,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 11:59:31,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 11:59:31,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 11:59:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 11:59:31,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-24 11:59:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:31,598 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 11:59:31,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 11:59:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 11:59:31,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 11:59:31,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 11:59:31,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 11:59:31,835 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 11:59:31,835 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-24 11:59:31,836 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed. [2018-10-24 11:59:31,836 INFO L425 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2018-10-24 11:59:31,836 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-24 11:59:31,836 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-24 11:59:31,836 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 11:59:31,836 INFO L428 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2018-10-24 11:59:31,836 INFO L421 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (or (<= ULTIMATE.start_main_~m~0 0) (<= ULTIMATE.start_main_~n~0 0) (and (<= 0 ULTIMATE.start_main_~x~0) (<= (+ ULTIMATE.start_main_~m~0 1) ULTIMATE.start_main_~n~0))) [2018-10-24 11:59:31,837 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 19) no Hoare annotation was computed. [2018-10-24 11:59:31,837 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 19) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~m~0)) (.cse1 (<= 0 ULTIMATE.start_main_~x~0))) (or (and .cse0 (<= ULTIMATE.start_main_~n~0 0) .cse1) (and .cse0 .cse1 (<= (+ ULTIMATE.start_main_~m~0 1) ULTIMATE.start_main_~n~0)))) [2018-10-24 11:59:31,837 INFO L421 ceAbstractionStarter]: At program point L14-4(lines 14 19) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~m~0)) (.cse1 (<= 0 ULTIMATE.start_main_~x~0))) (or (and (<= ULTIMATE.start_main_~m~0 0) .cse0) (and .cse0 (<= ULTIMATE.start_main_~n~0 0) .cse1) (and .cse0 .cse1 (<= (+ ULTIMATE.start_main_~m~0 1) ULTIMATE.start_main_~n~0)))) [2018-10-24 11:59:31,837 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-24 11:59:31,838 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-24 11:59:31,838 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 11:59:31,838 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 11:59:31,838 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 11:59:31,838 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-24 11:59:31,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:59:31 BoogieIcfgContainer [2018-10-24 11:59:31,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 11:59:31,851 INFO L168 Benchmark]: Toolchain (without parser) took 3553.06 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -615.8 MB). Peak memory consumption was 100.4 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:31,853 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. [2018-10-24 11:59:31,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.15 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. [2018-10-24 11:59:31,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.52 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. [2018-10-24 11:59:31,856 INFO L168 Benchmark]: Boogie Preprocessor took 25.67 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. [2018-10-24 11:59:31,856 INFO L168 Benchmark]: RCFGBuilder took 399.76 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:31,857 INFO L168 Benchmark]: TraceAbstraction took 2781.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 142.8 MB). Peak memory consumption was 142.8 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:31,862 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 297.15 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 39.52 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 25.67 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 399.76 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2781.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 142.8 MB). Peak memory consumption was 142.8 MB. 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: 14]: Loop Invariant Derived loop invariant: ((0 <= m && n <= 0) && 0 <= x) || ((0 <= m && 0 <= x) && m + 1 <= n) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 52 SDslu, 157 SDs, 0 SdLazy, 165 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=3, 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 14 PreInvPairs, 26 NumberOfFragments, 71 HoareAnnotationTreeSize, 14 FomulaSimplifications, 85 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 2641 SizeOfPredicates, 6 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 13/18 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...