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/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loops/vogal_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:55:50,525 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:55:50,529 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:55:50,543 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:55:50,544 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:55:50,545 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:55:50,546 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:55:50,548 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:55:50,550 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:55:50,552 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:55:50,553 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:55:50,554 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:55:50,557 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:55:50,558 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:55:50,562 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:55:50,563 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:55:50,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:55:50,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:55:50,573 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:55:50,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:55:50,579 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:55:50,582 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:55:50,585 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:55:50,594 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-22 15:55:50,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:55:50,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:55:50,612 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:55:50,612 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 15:55:50,612 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 15:55:50,612 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 15:55:50,613 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 15:55:50,613 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 15:55:50,613 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-22 15:55:50,613 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 15:55:50,613 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 15:55:50,614 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 15:55:50,614 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:55:50,615 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:55:50,615 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:55:50,615 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:55:50,615 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:55:50,615 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:55:50,616 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:55:50,616 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:55:50,616 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:55:50,616 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:55:50,617 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:55:50,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:55:50,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:55:50,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:55:50,617 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:55:50,618 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:55:50,618 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 15:55:50,618 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:55:50,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:55:50,619 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:55:50,619 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:55:50,620 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-22 15:55:50,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:55:50,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:55:50,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:55:50,703 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:55:50,704 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:55:50,705 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/vogal_false-unreach-call.i [2018-10-22 15:55:50,769 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2b2e6b98a/1b73b30cecbb4d3b9f0e582ba0b06317/FLAG7a5eea3cf [2018-10-22 15:55:51,257 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:55:51,258 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal_false-unreach-call.i [2018-10-22 15:55:51,265 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2b2e6b98a/1b73b30cecbb4d3b9f0e582ba0b06317/FLAG7a5eea3cf [2018-10-22 15:55:51,283 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2b2e6b98a/1b73b30cecbb4d3b9f0e582ba0b06317 [2018-10-22 15:55:51,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:55:51,296 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:55:51,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:55:51,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:55:51,303 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:55:51,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de4ffa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51, skipping insertion in model container [2018-10-22 15:55:51,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:55:51,339 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:55:51,546 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:55:51,550 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:55:51,581 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:55:51,606 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:55:51,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51 WrapperNode [2018-10-22 15:55:51,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:55:51,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:55:51,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:55:51,609 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:55:51,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:55:51,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:55:51,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:55:51,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:55:51,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (1/1) ... [2018-10-22 15:55:51,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:55:51,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:55:51,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:55:51,706 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:55:51,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (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 [2018-10-22 15:55:51,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 15:55:51,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 15:55:51,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:55:51,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:55:51,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 15:55:51,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 15:55:51,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 15:55:51,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 15:55:52,501 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:55:52,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:55:52 BoogieIcfgContainer [2018-10-22 15:55:52,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:55:52,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:55:52,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:55:52,507 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:55:52,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:55:51" (1/3) ... [2018-10-22 15:55:52,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725376ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:55:52, skipping insertion in model container [2018-10-22 15:55:52,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:55:51" (2/3) ... [2018-10-22 15:55:52,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725376ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:55:52, skipping insertion in model container [2018-10-22 15:55:52,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:55:52" (3/3) ... [2018-10-22 15:55:52,511 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal_false-unreach-call.i [2018-10-22 15:55:52,522 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:55:52,531 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:55:52,554 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:55:52,587 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:55:52,588 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:55:52,588 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:55:52,588 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:55:52,588 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:55:52,589 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:55:52,589 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:55:52,589 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:55:52,589 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:55:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-10-22 15:55:52,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-22 15:55:52,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:55:52,616 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:55:52,619 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:55:52,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:55:52,626 INFO L82 PathProgramCache]: Analyzing trace with hash 423919587, now seen corresponding path program 1 times [2018-10-22 15:55:52,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:55:52,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:55:52,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:55:52,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:55:52,677 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:55:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:55:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:55:52,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:55:52,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:55:52,787 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:55:52,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:55:52,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:55:52,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:55:52,809 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-10-22 15:55:52,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:55:52,834 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2018-10-22 15:55:52,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:55:52,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-10-22 15:55:52,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:55:52,844 INFO L225 Difference]: With dead ends: 75 [2018-10-22 15:55:52,844 INFO L226 Difference]: Without dead ends: 35 [2018-10-22 15:55:52,848 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 [2018-10-22 15:55:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-22 15:55:52,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-10-22 15:55:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-22 15:55:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-10-22 15:55:52,897 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 17 [2018-10-22 15:55:52,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:55:52,898 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-10-22 15:55:52,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:55:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-10-22 15:55:52,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-22 15:55:52,899 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:55:52,900 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, 1, 1] [2018-10-22 15:55:52,900 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:55:52,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:55:52,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1156330617, now seen corresponding path program 1 times [2018-10-22 15:55:52,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:55:52,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:55:52,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:55:52,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:55:52,903 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:55:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:55:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:55:53,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:55:53,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:55:53,089 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:55:53,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:55:53,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:55:53,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:55:53,092 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 3 states. [2018-10-22 15:55:53,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:55:53,260 INFO L93 Difference]: Finished difference Result 81 states and 101 transitions. [2018-10-22 15:55:53,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:55:53,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-10-22 15:55:53,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:55:53,268 INFO L225 Difference]: With dead ends: 81 [2018-10-22 15:55:53,268 INFO L226 Difference]: Without dead ends: 55 [2018-10-22 15:55:53,269 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 [2018-10-22 15:55:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-22 15:55:53,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 37. [2018-10-22 15:55:53,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-22 15:55:53,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-10-22 15:55:53,279 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 23 [2018-10-22 15:55:53,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:55:53,279 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-10-22 15:55:53,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:55:53,280 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-10-22 15:55:53,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-22 15:55:53,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:55:53,281 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:55:53,282 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:55:53,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:55:53,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1223778650, now seen corresponding path program 1 times [2018-10-22 15:55:53,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:55:53,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:55:53,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:55:53,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:55:53,284 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:55:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:55:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:55:53,516 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:55:53,516 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 15:55:53,517 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-10-22 15:55:53,519 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [26], [29], [35], [39], [42], [68], [72], [74], [77], [106], [109], [111], [117], [118], [119], [121] [2018-10-22 15:55:53,575 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 15:55:53,575 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 15:55:53,841 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-22 15:56:06,041 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 15:56:06,043 INFO L272 AbstractInterpreter]: Visited 24 different actions 1616 times. Merged at 8 different actions 1414 times. Widened at 2 different actions 346 times. Found 177 fixpoints after 2 different actions. Largest state had 43 variables. [2018-10-22 15:56:06,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:56:06,096 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 15:56:06,442 INFO L232 lantSequenceWeakener]: Weakened 24 states. On average, predicates are now at 87.8% of their original sizes. [2018-10-22 15:56:06,442 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 15:56:07,270 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 15:56:07,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:56:07,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2018-10-22 15:56:07,273 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:56:07,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-22 15:56:07,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-22 15:56:07,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-10-22 15:56:07,275 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 11 states. [2018-10-22 15:56:10,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:56:10,351 INFO L93 Difference]: Finished difference Result 134 states and 171 transitions. [2018-10-22 15:56:10,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-22 15:56:10,352 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-10-22 15:56:10,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:56:10,355 INFO L225 Difference]: With dead ends: 134 [2018-10-22 15:56:10,355 INFO L226 Difference]: Without dead ends: 107 [2018-10-22 15:56:10,356 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2018-10-22 15:56:10,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-10-22 15:56:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 59. [2018-10-22 15:56:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-22 15:56:10,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2018-10-22 15:56:10,373 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 26 [2018-10-22 15:56:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:56:10,373 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2018-10-22 15:56:10,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-22 15:56:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2018-10-22 15:56:10,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-22 15:56:10,375 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:56:10,375 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, 1, 1, 1, 1, 1, 1] [2018-10-22 15:56:10,375 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:56:10,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:56:10,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1325603312, now seen corresponding path program 1 times [2018-10-22 15:56:10,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:56:10,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:56:10,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:56:10,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:56:10,377 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:56:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:56:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-22 15:56:10,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:56:10,662 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 15:56:10,663 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2018-10-22 15:56:10,664 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [26], [29], [35], [39], [42], [68], [72], [74], [77], [79], [83], [86], [88], [91], [95], [99], [106], [109], [111], [117], [118], [119], [121] [2018-10-22 15:56:10,667 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 15:56:10,668 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 15:56:10,692 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-22 15:57:25,655 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 15:57:25,655 INFO L272 AbstractInterpreter]: Visited 32 different actions 7909 times. Merged at 18 different actions 5582 times. Widened at 5 different actions 1265 times. Found 695 fixpoints after 7 different actions. Largest state had 48 variables. [2018-10-22 15:57:25,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:57:25,662 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 15:57:25,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:57:25,662 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-10-22 15:57:25,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:57:25,673 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 15:57:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:57:25,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:57:25,947 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 11 treesize of output 8 [2018-10-22 15:57:25,967 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 8 treesize of output 7 [2018-10-22 15:57:25,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:57:25,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:57:26,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:57:26,079 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:7 [2018-10-22 15:57:26,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 11 [2018-10-22 15:57:26,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-10-22 15:57:26,315 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:57:26,317 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:57:26,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:57:26,319 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-10-22 15:57:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-22 15:57:26,365 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 15:57:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-22 15:57:26,784 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:57:26,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [4] total 14 [2018-10-22 15:57:26,784 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:57:26,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 15:57:26,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 15:57:26,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-10-22 15:57:26,786 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 8 states. [2018-10-22 15:57:27,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:57:27,195 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-10-22 15:57:27,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:57:27,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-10-22 15:57:27,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:57:27,200 INFO L225 Difference]: With dead ends: 84 [2018-10-22 15:57:27,200 INFO L226 Difference]: Without dead ends: 56 [2018-10-22 15:57:27,201 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2018-10-22 15:57:27,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-10-22 15:57:27,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-10-22 15:57:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-10-22 15:57:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 68 transitions. [2018-10-22 15:57:27,221 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 68 transitions. Word has length 36 [2018-10-22 15:57:27,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:57:27,221 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 68 transitions. [2018-10-22 15:57:27,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 15:57:27,222 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 68 transitions. [2018-10-22 15:57:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-22 15:57:27,223 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:57:27,223 INFO L375 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1] [2018-10-22 15:57:27,223 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:57:27,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:57:27,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1927482500, now seen corresponding path program 1 times [2018-10-22 15:57:27,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:57:27,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:57:27,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:57:27,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:57:27,226 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:57:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:57:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-22 15:57:27,486 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:57:27,486 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 15:57:27,487 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-10-22 15:57:27,487 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [26], [29], [31], [35], [39], [42], [44], [48], [51], [53], [56], [60], [64], [68], [72], [74], [77], [106], [109], [111], [117], [118], [119], [121] [2018-10-22 15:57:27,497 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 15:57:27,497 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 15:57:27,520 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-22 15:59:29,311 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 15:59:29,311 INFO L272 AbstractInterpreter]: Visited 33 different actions 12986 times. Merged at 23 different actions 9697 times. Widened at 8 different actions 2385 times. Found 1549 fixpoints after 9 different actions. Largest state had 49 variables. [2018-10-22 15:59:29,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:59:29,319 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 15:59:29,319 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:59:29,319 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-10-22 15:59:29,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:59:29,328 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 15:59:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:59:29,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:59:29,405 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 11 treesize of output 8 [2018-10-22 15:59:29,407 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 8 treesize of output 7 [2018-10-22 15:59:29,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:59:29,409 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:59:29,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:59:29,430 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:7 [2018-10-22 15:59:29,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 16 treesize of output 12 [2018-10-22 15:59:29,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-10-22 15:59:29,563 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:59:29,572 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:59:29,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:59:29,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-10-22 15:59:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-22 15:59:29,583 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 15:59:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-22 15:59:29,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:59:29,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 8] total 14 [2018-10-22 15:59:29,815 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:59:29,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-22 15:59:29,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-22 15:59:29,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-10-22 15:59:29,816 INFO L87 Difference]: Start difference. First operand 56 states and 68 transitions. Second operand 7 states. [2018-10-22 15:59:30,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:59:30,009 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2018-10-22 15:59:30,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 15:59:30,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-10-22 15:59:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:59:30,011 INFO L225 Difference]: With dead ends: 90 [2018-10-22 15:59:30,012 INFO L226 Difference]: Without dead ends: 85 [2018-10-22 15:59:30,014 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-10-22 15:59:30,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-22 15:59:30,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 59. [2018-10-22 15:59:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-22 15:59:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2018-10-22 15:59:30,025 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 38 [2018-10-22 15:59:30,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:59:30,025 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2018-10-22 15:59:30,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-22 15:59:30,026 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2018-10-22 15:59:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-22 15:59:30,027 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:59:30,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:59:30,027 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:59:30,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:59:30,028 INFO L82 PathProgramCache]: Analyzing trace with hash 650168739, now seen corresponding path program 1 times [2018-10-22 15:59:30,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:59:30,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:59:30,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:59:30,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:59:30,029 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:59:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:59:30,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-22 15:59:30,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:59:30,205 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 15:59:30,205 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-10-22 15:59:30,205 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [26], [29], [31], [35], [39], [42], [68], [72], [74], [77], [79], [83], [86], [88], [91], [95], [99], [106], [109], [111], [117], [118], [119], [121] [2018-10-22 15:59:30,207 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 15:59:30,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 15:59:30,217 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-22 16:00:01,160 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-22 16:00:01,161 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-22 16:00:01,161 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-22 16:00:01,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:00:01,161 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-10-22 16:00:01,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:00:01,170 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 16:00:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:00:01,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 16:00:01,210 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-22 16:00:01,411 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 16:00:01,411 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-22 16:00:01,417 WARN L205 ceAbstractionStarter]: Timeout [2018-10-22 16:00:01,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 04:00:01 BoogieIcfgContainer [2018-10-22 16:00:01,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 16:00:01,419 INFO L168 Benchmark]: Toolchain (without parser) took 250124.11 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 482.7 MB. Max. memory is 7.1 GB. [2018-10-22 16:00:01,421 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. [2018-10-22 16:00:01,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.71 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. [2018-10-22 16:00:01,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.79 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. [2018-10-22 16:00:01,422 INFO L168 Benchmark]: Boogie Preprocessor took 35.72 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. [2018-10-22 16:00:01,423 INFO L168 Benchmark]: RCFGBuilder took 796.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -746.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2018-10-22 16:00:01,424 INFO L168 Benchmark]: TraceAbstraction took 248914.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 485.4 MB. Max. memory is 7.1 GB. [2018-10-22 16:00:01,428 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 310.71 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 60.79 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 35.72 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 796.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -746.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 248914.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 485.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 5]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 5). Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. TIMEOUT Result, 248.8s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 177 SDtfs, 323 SDslu, 456 SDs, 0 SdLazy, 148 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 198 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 240.3s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9458759689922482 AbsIntWeakeningRatio, 1.96 AbsIntAvgWeakeningVarsNumRemoved, 410.36 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 92 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 33749 SizeOfPredicates, 35 NumberOfNonLiveVariables, 348 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 41/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown