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-acceleration/phases_true-unreach-call2_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b6335f6 [2018-10-23 09:34:16,615 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 09:34:16,618 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 09:34:16,633 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 09:34:16,633 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 09:34:16,635 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 09:34:16,636 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 09:34:16,640 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 09:34:16,643 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 09:34:16,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 09:34:16,646 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 09:34:16,646 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 09:34:16,647 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 09:34:16,649 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 09:34:16,656 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 09:34:16,657 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 09:34:16,660 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 09:34:16,663 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 09:34:16,667 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 09:34:16,669 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 09:34:16,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 09:34:16,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 09:34:16,676 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 09:34:16,688 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 09:34:16,715 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 09:34:16,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 09:34:16,716 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 09:34:16,717 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 09:34:16,717 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 09:34:16,718 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 09:34:16,718 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 09:34:16,718 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 09:34:16,718 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 09:34:16,718 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 09:34:16,718 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 09:34:16,720 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 09:34:16,720 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 09:34:16,720 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 09:34:16,720 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 09:34:16,721 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 09:34:16,721 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 09:34:16,721 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 09:34:16,721 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 09:34:16,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 09:34:16,722 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 09:34:16,723 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 09:34:16,723 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 09:34:16,723 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 09:34:16,724 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 09:34:16,724 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 09:34:16,724 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 09:34:16,724 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 09:34:16,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 09:34:16,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 09:34:16,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 09:34:16,799 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 09:34:16,800 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 09:34:16,800 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-10-23 09:34:16,862 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a1c516c3/69baaa3e1e48460492fc04d1510061d2/FLAG84c8fc0c3 [2018-10-23 09:34:17,358 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 09:34:17,359 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-10-23 09:34:17,365 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a1c516c3/69baaa3e1e48460492fc04d1510061d2/FLAG84c8fc0c3 [2018-10-23 09:34:17,382 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a1c516c3/69baaa3e1e48460492fc04d1510061d2 [2018-10-23 09:34:17,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 09:34:17,393 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 09:34:17,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 09:34:17,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 09:34:17,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 09:34:17,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb4233a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17, skipping insertion in model container [2018-10-23 09:34:17,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 09:34:17,441 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 09:34:17,649 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:34:17,653 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 09:34:17,670 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:34:17,686 INFO L193 MainTranslator]: Completed translation [2018-10-23 09:34:17,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17 WrapperNode [2018-10-23 09:34:17,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 09:34:17,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 09:34:17,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 09:34:17,688 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 09:34:17,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 09:34:17,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 09:34:17,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 09:34:17,725 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 09:34:17,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (1/1) ... [2018-10-23 09:34:17,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 09:34:17,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 09:34:17,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 09:34:17,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 09:34:17,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (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 09:34:17,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 09:34:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 09:34:18,095 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 09:34:18,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:34:18 BoogieIcfgContainer [2018-10-23 09:34:18,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 09:34:18,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 09:34:18,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 09:34:18,101 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 09:34:18,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:34:17" (1/3) ... [2018-10-23 09:34:18,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f3a13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:34:18, skipping insertion in model container [2018-10-23 09:34:18,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:34:17" (2/3) ... [2018-10-23 09:34:18,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f3a13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:34:18, skipping insertion in model container [2018-10-23 09:34:18,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:34:18" (3/3) ... [2018-10-23 09:34:18,104 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_true-unreach-call2_false-termination.i [2018-10-23 09:34:18,115 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 09:34:18,122 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 09:34:18,139 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 09:34:18,171 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 09:34:18,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 09:34:18,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 09:34:18,172 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 09:34:18,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 09:34:18,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 09:34:18,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 09:34:18,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 09:34:18,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 09:34:18,186 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-10-23 09:34:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-23 09:34:18,193 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:34:18,194 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:34:18,196 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:34:18,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:34:18,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1807304968, now seen corresponding path program 1 times [2018-10-23 09:34:18,207 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:34:18,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:34:18,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:34:18,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:34:18,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:34:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:34:18,329 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 09:34:18,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:34:18,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 09:34:18,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-23 09:34:18,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-23 09:34:18,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-23 09:34:18,353 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2018-10-23 09:34:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:34:18,370 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-10-23 09:34:18,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-23 09:34:18,372 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2018-10-23 09:34:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:34:18,382 INFO L225 Difference]: With dead ends: 22 [2018-10-23 09:34:18,383 INFO L226 Difference]: Without dead ends: 10 [2018-10-23 09:34:18,386 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 [2018-10-23 09:34:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-23 09:34:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-23 09:34:18,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-23 09:34:18,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-10-23 09:34:18,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2018-10-23 09:34:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:34:18,423 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-10-23 09:34:18,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-23 09:34:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-10-23 09:34:18,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-23 09:34:18,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:34:18,424 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:34:18,424 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:34:18,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:34:18,425 INFO L82 PathProgramCache]: Analyzing trace with hash 178589461, now seen corresponding path program 1 times [2018-10-23 09:34:18,425 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:34:18,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:34:18,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:34:18,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:34:18,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:34:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:34:18,718 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-10-23 09:34:19,045 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2018-10-23 09:34:19,084 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 09:34:19,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:34:19,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 09:34:19,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 09:34:19,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 09:34:19,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-23 09:34:19,088 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 6 states. [2018-10-23 09:34:19,341 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-23 09:34:19,635 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2018-10-23 09:34:19,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:34:19,760 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-10-23 09:34:19,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 09:34:19,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-10-23 09:34:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:34:19,761 INFO L225 Difference]: With dead ends: 17 [2018-10-23 09:34:19,761 INFO L226 Difference]: Without dead ends: 13 [2018-10-23 09:34:19,762 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 09:34:19,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-23 09:34:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-23 09:34:19,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-23 09:34:19,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2018-10-23 09:34:19,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8 [2018-10-23 09:34:19,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:34:19,770 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2018-10-23 09:34:19,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 09:34:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-10-23 09:34:19,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-23 09:34:19,771 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:34:19,771 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:34:19,772 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:34:19,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:34:19,772 INFO L82 PathProgramCache]: Analyzing trace with hash 507988077, now seen corresponding path program 1 times [2018-10-23 09:34:19,772 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:34:19,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:34:19,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:34:19,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:34:19,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:34:19,779 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-23 09:34:19,780 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-23 09:34:19,780 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-23 09:34:19,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:34:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:34:19,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:34:19,912 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 09:34:19,934 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-23 09:34:19,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-23 09:34:19,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 09:34:19,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 09:34:19,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-23 09:34:19,941 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 7 states. [2018-10-23 09:34:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:34:20,002 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-10-23 09:34:20,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 09:34:20,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-10-23 09:34:20,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:34:20,006 INFO L225 Difference]: With dead ends: 15 [2018-10-23 09:34:20,006 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 09:34:20,006 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-23 09:34:20,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 09:34:20,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 09:34:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 09:34:20,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 09:34:20,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-10-23 09:34:20,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:34:20,008 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 09:34:20,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 09:34:20,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 09:34:20,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 09:34:20,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 09:34:20,149 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-10-23 09:34:20,152 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-23 09:34:20,152 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-23 09:34:20,152 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-10-23 09:34:20,153 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-23 09:34:20,153 INFO L421 ceAbstractionStarter]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~x~0 1) (<= (+ ULTIMATE.start_main_~x~0 (* 4294967296 (div ULTIMATE.start_main_~y~0 4294967296))) ULTIMATE.start_main_~y~0)) [2018-10-23 09:34:20,153 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-23 09:34:20,153 INFO L428 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2018-10-23 09:34:20,154 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-23 09:34:20,154 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-23 09:34:20,154 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-23 09:34:20,154 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 20) no Hoare annotation was computed. [2018-10-23 09:34:20,154 INFO L425 ceAbstractionStarter]: For program point L14-3(lines 14 20) no Hoare annotation was computed. [2018-10-23 09:34:20,154 INFO L428 ceAbstractionStarter]: At program point L10(lines 10 22) the Hoare annotation is: true [2018-10-23 09:34:20,154 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-23 09:34:20,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:34:20 BoogieIcfgContainer [2018-10-23 09:34:20,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 09:34:20,169 INFO L168 Benchmark]: Toolchain (without parser) took 2776.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -716.6 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-10-23 09:34:20,171 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. [2018-10-23 09:34:20,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.60 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 09:34:20,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.68 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 09:34:20,173 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 09:34:20,174 INFO L168 Benchmark]: RCFGBuilder took 349.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-23 09:34:20,175 INFO L168 Benchmark]: TraceAbstraction took 2071.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 66.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2018-10-23 09:34:20,180 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 293.60 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 36.68 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 21.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 349.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2071.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 66.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == 1 && x + 4294967296 * (y / 4294967296) <= y - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 11 SDslu, 31 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1158 SizeOfPredicates, 4 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...