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/array_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 11:50:35,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 11:50:35,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 11:50:35,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 11:50:35,877 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 11:50:35,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 11:50:35,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 11:50:35,881 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 11:50:35,883 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 11:50:35,884 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 11:50:35,885 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 11:50:35,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 11:50:35,886 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 11:50:35,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 11:50:35,889 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 11:50:35,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 11:50:35,890 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 11:50:35,892 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 11:50:35,894 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 11:50:35,896 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 11:50:35,898 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 11:50:35,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 11:50:35,902 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 11:50:35,911 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 11:50:35,927 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 11:50:35,928 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 11:50:35,929 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 11:50:35,929 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 11:50:35,930 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 11:50:35,930 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 11:50:35,930 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 11:50:35,930 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 11:50:35,930 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 11:50:35,931 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 11:50:35,931 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 11:50:35,931 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 11:50:35,931 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 11:50:35,931 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 11:50:35,932 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 11:50:35,932 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 11:50:35,932 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 11:50:35,932 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 11:50:35,932 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 11:50:35,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:50:35,933 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 11:50:35,933 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 11:50:35,933 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 11:50:35,933 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 11:50:35,933 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 11:50:35,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 11:50:35,934 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 11:50:35,934 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 11:50:36,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 11:50:36,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 11:50:36,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 11:50:36,022 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 11:50:36,022 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 11:50:36,023 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call1_true-termination.i [2018-10-24 11:50:36,085 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d4490025/0c8c5f309dba4f6fa0ed5cb38ac3b194/FLAG8b605e421 [2018-10-24 11:50:36,519 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 11:50:36,520 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call1_true-termination.i [2018-10-24 11:50:36,527 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d4490025/0c8c5f309dba4f6fa0ed5cb38ac3b194/FLAG8b605e421 [2018-10-24 11:50:36,544 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d4490025/0c8c5f309dba4f6fa0ed5cb38ac3b194 [2018-10-24 11:50:36,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 11:50:36,558 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 11:50:36,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 11:50:36,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 11:50:36,564 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 11:50:36,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bedfbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36, skipping insertion in model container [2018-10-24 11:50:36,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 11:50:36,601 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 11:50:36,789 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:50:36,794 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 11:50:36,819 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:50:36,846 INFO L193 MainTranslator]: Completed translation [2018-10-24 11:50:36,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36 WrapperNode [2018-10-24 11:50:36,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 11:50:36,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 11:50:36,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 11:50:36,848 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 11:50:36,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 11:50:36,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 11:50:36,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 11:50:36,898 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 11:50:36,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (1/1) ... [2018-10-24 11:50:36,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 11:50:36,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 11:50:36,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 11:50:36,926 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 11:50:36,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (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 11:50:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 11:50:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 11:50:37,301 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 11:50:37,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:50:37 BoogieIcfgContainer [2018-10-24 11:50:37,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 11:50:37,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 11:50:37,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 11:50:37,306 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 11:50:37,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:50:36" (1/3) ... [2018-10-24 11:50:37,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7637090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:50:37, skipping insertion in model container [2018-10-24 11:50:37,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:36" (2/3) ... [2018-10-24 11:50:37,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7637090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:50:37, skipping insertion in model container [2018-10-24 11:50:37,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:50:37" (3/3) ... [2018-10-24 11:50:37,310 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call1_true-termination.i [2018-10-24 11:50:37,321 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 11:50:37,339 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 11:50:37,384 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 11:50:37,439 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 11:50:37,440 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 11:50:37,440 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 11:50:37,440 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 11:50:37,440 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 11:50:37,441 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 11:50:37,441 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 11:50:37,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 11:50:37,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 11:50:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-24 11:50:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-24 11:50:37,467 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:50:37,469 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-24 11:50:37,472 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:50:37,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:50:37,479 INFO L82 PathProgramCache]: Analyzing trace with hash 889814567, now seen corresponding path program 1 times [2018-10-24 11:50:37,481 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:50:37,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:50:37,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:37,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:50:37,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:50:37,618 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 11:50:37,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:50:37,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 11:50:37,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 11:50:37,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 11:50:37,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:50:37,641 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2018-10-24 11:50:37,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:50:37,656 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-10-24 11:50:37,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 11:50:37,658 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-10-24 11:50:37,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:50:37,670 INFO L225 Difference]: With dead ends: 21 [2018-10-24 11:50:37,670 INFO L226 Difference]: Without dead ends: 9 [2018-10-24 11:50:37,674 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 11:50:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-24 11:50:37,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-24 11:50:37,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-24 11:50:37,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-24 11:50:37,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-24 11:50:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:50:37,710 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-24 11:50:37,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 11:50:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-24 11:50:37,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-24 11:50:37,710 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:50:37,711 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:50:37,711 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:50:37,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:50:37,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1805894861, now seen corresponding path program 1 times [2018-10-24 11:50:37,712 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:50:37,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:50:37,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:37,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:50:37,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:50:37,767 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 11:50:37,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:50:37,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 11:50:37,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 11:50:37,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 11:50:37,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 11:50:37,771 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2018-10-24 11:50:37,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:50:37,831 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-10-24 11:50:37,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 11:50:37,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-24 11:50:37,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:50:37,833 INFO L225 Difference]: With dead ends: 16 [2018-10-24 11:50:37,833 INFO L226 Difference]: Without dead ends: 12 [2018-10-24 11:50:37,834 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 11:50:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-24 11:50:37,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-10-24 11:50:37,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-24 11:50:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-24 11:50:37,837 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2018-10-24 11:50:37,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:50:37,838 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-24 11:50:37,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 11:50:37,838 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-24 11:50:37,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-24 11:50:37,839 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:50:37,839 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:50:37,840 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:50:37,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:50:37,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1994321781, now seen corresponding path program 1 times [2018-10-24 11:50:37,840 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:50:37,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:50:37,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:37,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:50:37,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:50:37,909 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 11:50:37,909 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:50:37,910 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 11:50:37,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:50:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:50:37,981 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:50:38,016 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 11:50:38,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 11:50:38,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-10-24 11:50:38,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 11:50:38,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 11:50:38,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:50:38,039 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 5 states. [2018-10-24 11:50:38,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:50:38,119 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-10-24 11:50:38,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 11:50:38,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-10-24 11:50:38,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:50:38,121 INFO L225 Difference]: With dead ends: 19 [2018-10-24 11:50:38,121 INFO L226 Difference]: Without dead ends: 15 [2018-10-24 11:50:38,121 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:50:38,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-24 11:50:38,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-10-24 11:50:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-24 11:50:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-24 11:50:38,125 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-10-24 11:50:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:50:38,125 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-24 11:50:38,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 11:50:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-24 11:50:38,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 11:50:38,126 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:50:38,126 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-10-24 11:50:38,127 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:50:38,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:50:38,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1089618957, now seen corresponding path program 2 times [2018-10-24 11:50:38,127 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:50:38,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:50:38,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:38,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:50:38,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:50:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:50:38,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:50:38,197 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 11:50:38,211 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-24 11:50:38,252 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-24 11:50:38,252 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-24 11:50:38,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:50:38,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:50:38,395 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 11:50:38,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-10-24 11:50:38,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 11:50:38,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 11:50:38,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 11:50:38,397 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-10-24 11:50:38,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:50:38,563 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-24 11:50:38,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:50:38,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-10-24 11:50:38,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:50:38,566 INFO L225 Difference]: With dead ends: 22 [2018-10-24 11:50:38,567 INFO L226 Difference]: Without dead ends: 18 [2018-10-24 11:50:38,567 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 11:50:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-24 11:50:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-10-24 11:50:38,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-24 11:50:38,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-10-24 11:50:38,571 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2018-10-24 11:50:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:50:38,572 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-10-24 11:50:38,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 11:50:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-10-24 11:50:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-24 11:50:38,573 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:50:38,573 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-10-24 11:50:38,573 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:50:38,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:50:38,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1122715979, now seen corresponding path program 3 times [2018-10-24 11:50:38,574 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:50:38,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:50:38,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:38,575 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-24 11:50:38,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:50:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:50:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:50:38,703 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:50:38,703 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 11:50:38,719 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-24 11:50:38,741 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-10-24 11:50:38,742 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-24 11:50:38,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:50:38,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-10-24 11:50:38,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-24 11:50:38,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-24 11:50:38,798 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-24 11:50:38,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-24 11:50:38,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-10-24 11:50:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 11:50:39,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 11:50:39,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-24 11:50:39,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 11:50:39,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 11:50:39,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-24 11:50:39,015 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 10 states. [2018-10-24 11:50:39,175 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2018-10-24 11:50:39,853 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2018-10-24 11:50:40,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:50:40,176 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-10-24 11:50:40,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 11:50:40,176 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-10-24 11:50:40,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:50:40,177 INFO L225 Difference]: With dead ends: 23 [2018-10-24 11:50:40,177 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 11:50:40,178 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2018-10-24 11:50:40,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 11:50:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 11:50:40,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 11:50:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 11:50:40,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-10-24 11:50:40,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:50:40,180 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 11:50:40,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 11:50:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 11:50:40,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 11:50:40,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 11:50:40,501 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 19 [2018-10-24 11:50:40,505 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 11:50:40,505 INFO L425 ceAbstractionStarter]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2018-10-24 11:50:40,505 INFO L425 ceAbstractionStarter]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2018-10-24 11:50:40,506 INFO L421 ceAbstractionStarter]: At program point L11-4(lines 11 13) the Hoare annotation is: (or (and (< ULTIMATE.start_main_~i~0 1025) (= ULTIMATE.start_main_~i~0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~#A~0.base|) (+ |ULTIMATE.start_main_~#A~0.offset| (* 4 ULTIMATE.start_main_~i~0) (- 4))) 1))) (= ULTIMATE.start_main_~i~0 0)) [2018-10-24 11:50:40,506 INFO L425 ceAbstractionStarter]: For program point L11-5(lines 11 13) no Hoare annotation was computed. [2018-10-24 11:50:40,506 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-10-24 11:50:40,506 INFO L428 ceAbstractionStarter]: At program point L3-2(lines 2 7) the Hoare annotation is: true [2018-10-24 11:50:40,506 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-24 11:50:40,506 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-24 11:50:40,506 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 11:50:40,507 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-24 11:50:40,507 INFO L425 ceAbstractionStarter]: For program point L8(lines 8 15) no Hoare annotation was computed. [2018-10-24 11:50:40,507 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-24 11:50:40,515 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:50:40,519 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:50:40,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:50:40 BoogieIcfgContainer [2018-10-24 11:50:40,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 11:50:40,523 INFO L168 Benchmark]: Toolchain (without parser) took 3965.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -651.8 MB). Peak memory consumption was 100.6 MB. Max. memory is 7.1 GB. [2018-10-24 11:50:40,524 INFO L168 Benchmark]: CDTParser took 0.22 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 11:50:40,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.10 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 11:50:40,526 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.85 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 11:50:40,526 INFO L168 Benchmark]: Boogie Preprocessor took 27.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:50:40,527 INFO L168 Benchmark]: RCFGBuilder took 375.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-24 11:50:40,528 INFO L168 Benchmark]: TraceAbstraction took 3219.46 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: 140.0 MB). Peak memory consumption was 140.0 MB. Max. memory is 7.1 GB. [2018-10-24 11:50:40,533 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 288.10 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 49.85 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 27.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 375.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3219.46 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: 140.0 MB). Peak memory consumption was 140.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2018-10-24 11:50:40,549 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:50:40,551 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (i < 1025 && i == unknown-#memory_int-unknown[A][A + 4 * i + -4] + 1) || i == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 10 SDslu, 46 SDs, 0 SdLazy, 63 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=4, 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, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 23 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 83 ConstructedInterpolants, 1 QuantifiedInterpolants, 2944 SizeOfPredicates, 17 NumberOfNonLiveVariables, 185 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 15/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...