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-crafted/simple_array_index_value_true-unreach-call4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b6335f6 [2018-10-23 09:35:12,841 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 09:35:12,845 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 09:35:12,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 09:35:12,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 09:35:12,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 09:35:12,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 09:35:12,865 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 09:35:12,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 09:35:12,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 09:35:12,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 09:35:12,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 09:35:12,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 09:35:12,876 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 09:35:12,882 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 09:35:12,883 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 09:35:12,884 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 09:35:12,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 09:35:12,894 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 09:35:12,896 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 09:35:12,898 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 09:35:12,901 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 09:35:12,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 09:35:12,917 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 09:35:12,937 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 09:35:12,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 09:35:12,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 09:35:12,938 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 09:35:12,938 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 09:35:12,938 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 09:35:12,939 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 09:35:12,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 09:35:12,940 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 09:35:12,940 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 09:35:12,940 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 09:35:12,940 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 09:35:12,940 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 09:35:12,941 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 09:35:12,941 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 09:35:12,941 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 09:35:12,942 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 09:35:12,942 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 09:35:12,942 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 09:35:12,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 09:35:12,942 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 09:35:12,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 09:35:12,943 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 09:35:12,943 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 09:35:12,943 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 09:35:12,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 09:35:12,943 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 09:35:12,944 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 09:35:12,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 09:35:13,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 09:35:13,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 09:35:13,017 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 09:35:13,017 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 09:35:13,018 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call4.i.v+nlh-reducer.c [2018-10-23 09:35:13,075 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/df34d7b89/6b03a711708c4ed4a7569c39812a619e/FLAG2916613c7 [2018-10-23 09:35:13,534 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 09:35:13,535 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call4.i.v+nlh-reducer.c [2018-10-23 09:35:13,543 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/df34d7b89/6b03a711708c4ed4a7569c39812a619e/FLAG2916613c7 [2018-10-23 09:35:13,558 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/df34d7b89/6b03a711708c4ed4a7569c39812a619e [2018-10-23 09:35:13,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 09:35:13,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 09:35:13,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 09:35:13,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 09:35:13,574 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 09:35:13,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:13,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4afafc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13, skipping insertion in model container [2018-10-23 09:35:13,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:13,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 09:35:13,624 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 09:35:13,866 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:35:13,874 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 09:35:13,922 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:35:13,952 INFO L193 MainTranslator]: Completed translation [2018-10-23 09:35:13,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13 WrapperNode [2018-10-23 09:35:13,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 09:35:13,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 09:35:13,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 09:35:13,956 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 09:35:13,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:13,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 09:35:14,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 09:35:14,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 09:35:14,008 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 09:35:14,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (1/1) ... [2018-10-23 09:35:14,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 09:35:14,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 09:35:14,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 09:35:14,034 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 09:35:14,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (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 09:35:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 09:35:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 09:35:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-23 09:35:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-23 09:35:14,684 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 09:35:14,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:35:14 BoogieIcfgContainer [2018-10-23 09:35:14,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 09:35:14,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 09:35:14,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 09:35:14,689 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 09:35:14,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:35:13" (1/3) ... [2018-10-23 09:35:14,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790d7b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:35:14, skipping insertion in model container [2018-10-23 09:35:14,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:35:13" (2/3) ... [2018-10-23 09:35:14,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790d7b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:35:14, skipping insertion in model container [2018-10-23 09:35:14,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:35:14" (3/3) ... [2018-10-23 09:35:14,693 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4.i.v+nlh-reducer.c [2018-10-23 09:35:14,701 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 09:35:14,709 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-23 09:35:14,726 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-23 09:35:14,758 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 09:35:14,759 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 09:35:14,759 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 09:35:14,759 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 09:35:14,760 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 09:35:14,760 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 09:35:14,760 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 09:35:14,760 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 09:35:14,760 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 09:35:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-10-23 09:35:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-23 09:35:14,784 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:14,785 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:14,787 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:14,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:14,794 INFO L82 PathProgramCache]: Analyzing trace with hash -2071516495, now seen corresponding path program 1 times [2018-10-23 09:35:14,796 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:14,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:14,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:14,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:14,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:14,966 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 09:35:14,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:14,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 09:35:14,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 09:35:14,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 09:35:14,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 09:35:14,992 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2018-10-23 09:35:15,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:35:15,150 INFO L93 Difference]: Finished difference Result 108 states and 133 transitions. [2018-10-23 09:35:15,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 09:35:15,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-23 09:35:15,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:35:15,162 INFO L225 Difference]: With dead ends: 108 [2018-10-23 09:35:15,163 INFO L226 Difference]: Without dead ends: 49 [2018-10-23 09:35:15,166 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 [2018-10-23 09:35:15,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-23 09:35:15,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 32. [2018-10-23 09:35:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-23 09:35:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-10-23 09:35:15,206 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 10 [2018-10-23 09:35:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:35:15,207 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-10-23 09:35:15,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 09:35:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-10-23 09:35:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-23 09:35:15,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:15,208 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:15,209 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:15,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:15,209 INFO L82 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2018-10-23 09:35:15,209 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:15,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:15,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:15,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:15,327 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 09:35:15,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:15,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 09:35:15,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 09:35:15,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 09:35:15,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-23 09:35:15,332 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 4 states. [2018-10-23 09:35:15,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:35:15,430 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-10-23 09:35:15,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 09:35:15,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-23 09:35:15,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:35:15,432 INFO L225 Difference]: With dead ends: 57 [2018-10-23 09:35:15,432 INFO L226 Difference]: Without dead ends: 55 [2018-10-23 09:35:15,433 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 09:35:15,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-23 09:35:15,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 34. [2018-10-23 09:35:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-23 09:35:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-10-23 09:35:15,440 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 10 [2018-10-23 09:35:15,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:35:15,440 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-10-23 09:35:15,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 09:35:15,441 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-10-23 09:35:15,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-23 09:35:15,441 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:15,441 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:15,442 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:15,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:15,442 INFO L82 PathProgramCache]: Analyzing trace with hash 2012262601, now seen corresponding path program 1 times [2018-10-23 09:35:15,442 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:15,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:15,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:15,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:15,524 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 09:35:15,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:15,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 09:35:15,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 09:35:15,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 09:35:15,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 09:35:15,526 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 3 states. [2018-10-23 09:35:15,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:35:15,622 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2018-10-23 09:35:15,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 09:35:15,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-23 09:35:15,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:35:15,625 INFO L225 Difference]: With dead ends: 70 [2018-10-23 09:35:15,627 INFO L226 Difference]: Without dead ends: 45 [2018-10-23 09:35:15,627 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 [2018-10-23 09:35:15,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-23 09:35:15,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 29. [2018-10-23 09:35:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-23 09:35:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-10-23 09:35:15,638 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 11 [2018-10-23 09:35:15,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:35:15,639 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-10-23 09:35:15,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 09:35:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-10-23 09:35:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-23 09:35:15,640 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:15,641 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:15,641 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:15,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:15,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1594185659, now seen corresponding path program 1 times [2018-10-23 09:35:15,642 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:15,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:15,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:15,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:15,753 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 09:35:15,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:15,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 09:35:15,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 09:35:15,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 09:35:15,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 09:35:15,755 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-10-23 09:35:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:35:15,769 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-10-23 09:35:15,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 09:35:15,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-10-23 09:35:15,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:35:15,770 INFO L225 Difference]: With dead ends: 41 [2018-10-23 09:35:15,771 INFO L226 Difference]: Without dead ends: 33 [2018-10-23 09:35:15,771 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 [2018-10-23 09:35:15,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-23 09:35:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2018-10-23 09:35:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-23 09:35:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-10-23 09:35:15,776 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 12 [2018-10-23 09:35:15,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:35:15,776 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-10-23 09:35:15,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 09:35:15,777 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-10-23 09:35:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-23 09:35:15,777 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:15,778 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:15,778 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:15,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:15,778 INFO L82 PathProgramCache]: Analyzing trace with hash 147701691, now seen corresponding path program 1 times [2018-10-23 09:35:15,778 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:15,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:15,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:15,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:15,909 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 09:35:15,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:15,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 09:35:15,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 09:35:15,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 09:35:15,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-23 09:35:15,912 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 6 states. [2018-10-23 09:35:16,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:35:16,129 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2018-10-23 09:35:16,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 09:35:16,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-10-23 09:35:16,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:35:16,133 INFO L225 Difference]: With dead ends: 64 [2018-10-23 09:35:16,134 INFO L226 Difference]: Without dead ends: 62 [2018-10-23 09:35:16,134 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-10-23 09:35:16,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-10-23 09:35:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 31. [2018-10-23 09:35:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-23 09:35:16,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-10-23 09:35:16,142 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 19 [2018-10-23 09:35:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:35:16,142 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-10-23 09:35:16,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 09:35:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-10-23 09:35:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-23 09:35:16,143 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:16,143 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:16,144 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:16,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:16,144 INFO L82 PathProgramCache]: Analyzing trace with hash 166618976, now seen corresponding path program 1 times [2018-10-23 09:35:16,144 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:16,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:16,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:16,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:16,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:16,325 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 09:35:16,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:16,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 09:35:16,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 09:35:16,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 09:35:16,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 09:35:16,327 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 6 states. [2018-10-23 09:35:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:35:17,129 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2018-10-23 09:35:17,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 09:35:17,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-10-23 09:35:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:35:17,134 INFO L225 Difference]: With dead ends: 103 [2018-10-23 09:35:17,135 INFO L226 Difference]: Without dead ends: 81 [2018-10-23 09:35:17,135 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-10-23 09:35:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-10-23 09:35:17,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 37. [2018-10-23 09:35:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-23 09:35:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-10-23 09:35:17,145 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2018-10-23 09:35:17,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:35:17,145 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-10-23 09:35:17,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 09:35:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-10-23 09:35:17,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-23 09:35:17,146 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:17,147 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:17,147 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:17,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:17,147 INFO L82 PathProgramCache]: Analyzing trace with hash 296175317, now seen corresponding path program 1 times [2018-10-23 09:35:17,148 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:17,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:17,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:17,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:17,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:17,357 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 09:35:17,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:17,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 09:35:17,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 09:35:17,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 09:35:17,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 09:35:17,360 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2018-10-23 09:35:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:35:17,491 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2018-10-23 09:35:17,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 09:35:17,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-10-23 09:35:17,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:35:17,498 INFO L225 Difference]: With dead ends: 73 [2018-10-23 09:35:17,498 INFO L226 Difference]: Without dead ends: 51 [2018-10-23 09:35:17,499 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 09:35:17,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-23 09:35:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 37. [2018-10-23 09:35:17,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-23 09:35:17,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-10-23 09:35:17,507 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 20 [2018-10-23 09:35:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:35:17,507 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-10-23 09:35:17,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 09:35:17,507 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-10-23 09:35:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-23 09:35:17,508 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:35:17,508 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:35:17,509 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:35:17,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:35:17,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1068979236, now seen corresponding path program 1 times [2018-10-23 09:35:17,509 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:35:17,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:35:17,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:17,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:35:17,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:35:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:35:17,907 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2018-10-23 09:35:18,478 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2018-10-23 09:35:20,866 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (div (+ c_ULTIMATE.start_main_~main__index1~0 (- 1)) 4294967296))) (or (<= c_ULTIMATE.start_main_~main__index1~0 (+ c_ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div (+ (* 4294967296 .cse0) (+ (- c_ULTIMATE.start_main_~main__index2~0) 199997)) 4294967296)))) (let ((.cse8 (div (+ c_ULTIMATE.start_main_~main__index1~0 4294867296) 4294967296))) (let ((.cse1 (* 4294967296 .cse8)) (.cse2 (* 4294967296 (div (+ (- 0) c_ULTIMATE.start_main_~main__index1~0) 4294967296)))) (and (<= .cse1 .cse2) (or (and (or (<= 1 |c_ULTIMATE.start_main_~#main__array~0.offset|) (let ((.cse3 (* 4294967296 (div (+ (- |c_ULTIMATE.start_main_~#main__array~0.offset|) (+ (* 17179869184 .cse0) (+ (* (- 4) c_ULTIMATE.start_main_~main__index2~0) 399992))) 17179869184)))) (and (<= c_ULTIMATE.start_main_~main__index1~0 (+ c_ULTIMATE.start_main_~main__index2~0 .cse3 1)) (or (<= c_ULTIMATE.start_main_~main__index1~0 (+ c_ULTIMATE.start_main_~main__index2~0 .cse3)) (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__array~0.base|)) (.cse7 (+ c_ULTIMATE.start_main_~main__index1~0 (* (- 4294967296) .cse8)))) (let ((.cse4 (select .cse6 (+ |c_ULTIMATE.start_main_~#main__array~0.offset| (* 4 (+ .cse7 (- 1))))))) (<= .cse4 (let ((.cse5 (select .cse6 (+ |c_ULTIMATE.start_main_~#main__array~0.offset| (* 4 .cse7))))) (+ (* 4294967296 (div (+ (- .cse5) .cse4) 4294967296)) .cse5))))))))) (= |c_ULTIMATE.start_main_~#main__array~0.offset| 0)) (<= (+ .cse1 1) .cse2))))))) is different from true [2018-10-23 09:35:21,094 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 09:35:21,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:35:21,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-23 09:35:21,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-23 09:35:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-23 09:35:21,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=165, Unknown=1, NotChecked=26, Total=240 [2018-10-23 09:35:21,096 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 16 states. [2018-10-23 09:35:21,952 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-10-23 09:35:53,624 WARN L179 SmtUtils]: Spent 17.92 s on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2018-10-23 09:36:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:36:03,350 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2018-10-23 09:36:03,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-23 09:36:03,351 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2018-10-23 09:36:03,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:36:03,352 INFO L225 Difference]: With dead ends: 53 [2018-10-23 09:36:03,352 INFO L226 Difference]: Without dead ends: 51 [2018-10-23 09:36:03,354 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=190, Invalid=679, Unknown=5, NotChecked=56, Total=930 [2018-10-23 09:36:03,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-23 09:36:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2018-10-23 09:36:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-23 09:36:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-10-23 09:36:03,363 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 21 [2018-10-23 09:36:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:36:03,364 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-10-23 09:36:03,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-23 09:36:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-10-23 09:36:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-23 09:36:03,365 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:36:03,365 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:36:03,366 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:36:03,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:36:03,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1503608933, now seen corresponding path program 1 times [2018-10-23 09:36:03,366 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:36:03,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:36:03,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:36:03,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:36:03,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:36:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:36:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:36:04,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 09:36:04,187 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 09:36:04,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:36:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:36:04,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:36:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:36:04,451 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 09:36:04,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-10-23 09:36:04,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 09:36:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 09:36:04,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-23 09:36:04,452 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 7 states. [2018-10-23 09:36:06,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:36:06,799 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-10-23 09:36:06,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 09:36:06,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-10-23 09:36:06,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:36:06,801 INFO L225 Difference]: With dead ends: 55 [2018-10-23 09:36:06,801 INFO L226 Difference]: Without dead ends: 41 [2018-10-23 09:36:06,802 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-23 09:36:06,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-23 09:36:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-10-23 09:36:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-23 09:36:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-10-23 09:36:06,812 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 26 [2018-10-23 09:36:06,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:36:06,812 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-10-23 09:36:06,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 09:36:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-10-23 09:36:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-23 09:36:06,814 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:36:06,814 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:36:06,814 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:36:06,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:36:06,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1565095508, now seen corresponding path program 1 times [2018-10-23 09:36:06,815 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:36:06,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:36:06,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:36:06,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:36:06,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:36:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:36:07,211 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-10-23 09:36:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:36:11,544 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 09:36:11,544 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 [2018-10-23 09:36:11,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:36:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:36:22,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:36:22,895 WARN L854 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__index2~0 Int)) (and (<= ULTIMATE.start_main_~main__index2~0 (+ (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)) 99999)) (< (mod c_ULTIMATE.start_main_~main__index1~0 4294967296) (mod ULTIMATE.start_main_~main__index2~0 4294967296)))) is different from true [2018-10-23 09:36:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2018-10-23 09:36:35,114 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 09:36:35,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 13 [2018-10-23 09:36:35,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-23 09:36:35,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-23 09:36:35,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=99, Unknown=7, NotChecked=20, Total=156 [2018-10-23 09:36:35,116 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 13 states. [2018-10-23 09:37:29,167 WARN L179 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-10-23 09:39:42,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:39:42,183 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2018-10-23 09:39:42,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-23 09:39:42,184 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-10-23 09:39:42,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:39:42,185 INFO L225 Difference]: With dead ends: 144 [2018-10-23 09:39:42,186 INFO L226 Difference]: Without dead ends: 122 [2018-10-23 09:39:42,186 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 47.5s TimeCoverageRelationStatistics Valid=59, Invalid=202, Unknown=15, NotChecked=30, Total=306 [2018-10-23 09:39:42,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-10-23 09:39:42,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 55. [2018-10-23 09:39:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-23 09:39:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-10-23 09:39:42,202 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 28 [2018-10-23 09:39:42,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:39:42,203 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-10-23 09:39:42,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-23 09:39:42,203 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-10-23 09:39:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-23 09:39:42,204 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:39:42,204 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:39:42,204 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:39:42,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:39:42,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1200712488, now seen corresponding path program 1 times [2018-10-23 09:39:42,205 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:39:42,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:39:42,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:39:42,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:39:42,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:39:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:39:42,538 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 11 [2018-10-23 09:39:58,056 WARN L179 SmtUtils]: Spent 13.30 s on a formula simplification. DAG size of input: 34 DAG size of output: 30 Received shutdown request... [2018-10-23 09:40:04,685 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 09:40:04,691 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 09:40:04,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:40:04 BoogieIcfgContainer [2018-10-23 09:40:04,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 09:40:04,692 INFO L168 Benchmark]: Toolchain (without parser) took 291124.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.3 MB). Peak memory consumption was 579.2 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:04,693 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 09:40:04,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:04,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 09:40:04,695 INFO L168 Benchmark]: Boogie Preprocessor took 25.13 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 09:40:04,695 INFO L168 Benchmark]: RCFGBuilder took 651.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:04,696 INFO L168 Benchmark]: TraceAbstraction took 290005.64 ms. Allocated memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -2.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -41.8 MB). Peak memory consumption was 596.8 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:04,701 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 382.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.27 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 25.13 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 651.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 290005.64 ms. Allocated memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -2.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -41.8 MB). Peak memory consumption was 596.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while BasicCegarLoop was analyzing trace of length 31 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 37). Cancelled while BasicCegarLoop was analyzing trace of length 31 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 68). Cancelled while BasicCegarLoop was analyzing trace of length 31 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 3 error locations. TIMEOUT Result, 289.9s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 233.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 305 SDtfs, 593 SDslu, 580 SDs, 0 SdLazy, 590 SolverSat, 47 SolverUnsat, 71 SolverUnknown, 0 SolverNotchecked, 164.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 67 SyntacticMatches, 10 SemanticMatches, 76 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 87.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=10, 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 226 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 11.1s SatisfiabilityAnalysisTime, 22.5s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 218 ConstructedInterpolants, 19 QuantifiedInterpolants, 71621 SizeOfPredicates, 6 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 12/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown