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/loops/string_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 15:43:10,791 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 15:43:10,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 15:43:10,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 15:43:10,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 15:43:10,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 15:43:10,808 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 15:43:10,809 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 15:43:10,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 15:43:10,812 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 15:43:10,813 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 15:43:10,813 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 15:43:10,814 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 15:43:10,815 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 15:43:10,816 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 15:43:10,817 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 15:43:10,818 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 15:43:10,823 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 15:43:10,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 15:43:10,829 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 15:43:10,830 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 15:43:10,831 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 15:43:10,840 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 15:43:10,852 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 15:43:10,866 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 15:43:10,866 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 15:43:10,867 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 15:43:10,867 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 15:43:10,868 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 15:43:10,868 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 15:43:10,868 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 15:43:10,869 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 15:43:10,869 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 15:43:10,869 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 15:43:10,869 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 15:43:10,869 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 15:43:10,870 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 15:43:10,870 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 15:43:10,870 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 15:43:10,870 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 15:43:10,871 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 15:43:10,871 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 15:43:10,871 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 15:43:10,871 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 15:43:10,871 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 15:43:10,871 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 15:43:10,872 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 15:43:10,872 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 15:43:10,872 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 15:43:10,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 15:43:10,872 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 15:43:10,873 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 15:43:10,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 15:43:10,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 15:43:10,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 15:43:10,944 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 15:43:10,945 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 15:43:10,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-10-23 15:43:11,003 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5675aff9c/07f6268e06e345a0b37f0ed80adb0895/FLAGd86b377c1 [2018-10-23 15:43:11,469 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 15:43:11,470 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-10-23 15:43:11,477 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5675aff9c/07f6268e06e345a0b37f0ed80adb0895/FLAGd86b377c1 [2018-10-23 15:43:11,491 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5675aff9c/07f6268e06e345a0b37f0ed80adb0895 [2018-10-23 15:43:11,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 15:43:11,502 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 15:43:11,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 15:43:11,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 15:43:11,507 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 15:43:11,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d98767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11, skipping insertion in model container [2018-10-23 15:43:11,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 15:43:11,545 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 15:43:11,755 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 15:43:11,759 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 15:43:11,786 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 15:43:11,807 INFO L193 MainTranslator]: Completed translation [2018-10-23 15:43:11,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11 WrapperNode [2018-10-23 15:43:11,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 15:43:11,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 15:43:11,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 15:43:11,809 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 15:43:11,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 15:43:11,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 15:43:11,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 15:43:11,856 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 15:43:11,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (1/1) ... [2018-10-23 15:43:11,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 15:43:11,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 15:43:11,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 15:43:11,888 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 15:43:11,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (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 15:43:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-23 15:43:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-23 15:43:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 15:43:12,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 15:43:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-23 15:43:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-23 15:43:12,567 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 15:43:12,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 03:43:12 BoogieIcfgContainer [2018-10-23 15:43:12,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 15:43:12,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 15:43:12,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 15:43:12,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 15:43:12,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 03:43:11" (1/3) ... [2018-10-23 15:43:12,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1049b8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 03:43:12, skipping insertion in model container [2018-10-23 15:43:12,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:11" (2/3) ... [2018-10-23 15:43:12,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1049b8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 03:43:12, skipping insertion in model container [2018-10-23 15:43:12,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 03:43:12" (3/3) ... [2018-10-23 15:43:12,576 INFO L112 eAbstractionObserver]: Analyzing ICFG string_true-unreach-call_true-termination.i [2018-10-23 15:43:12,586 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 15:43:12,594 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 15:43:12,612 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 15:43:12,645 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 15:43:12,646 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 15:43:12,646 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 15:43:12,646 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 15:43:12,647 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 15:43:12,647 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 15:43:12,647 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 15:43:12,647 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 15:43:12,647 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 15:43:12,664 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-10-23 15:43:12,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-23 15:43:12,672 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:12,673 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 15:43:12,675 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:12,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:12,680 INFO L82 PathProgramCache]: Analyzing trace with hash 777437931, now seen corresponding path program 1 times [2018-10-23 15:43:12,682 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:12,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:12,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:12,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:12,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:12,806 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 15:43:12,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 15:43:12,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 15:43:12,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-23 15:43:12,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-23 15:43:12,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-23 15:43:12,831 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-10-23 15:43:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:12,853 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2018-10-23 15:43:12,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-23 15:43:12,854 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-10-23 15:43:12,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:12,865 INFO L225 Difference]: With dead ends: 102 [2018-10-23 15:43:12,866 INFO L226 Difference]: Without dead ends: 36 [2018-10-23 15:43:12,869 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-23 15:43:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-23 15:43:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-10-23 15:43:12,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-23 15:43:12,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-10-23 15:43:12,905 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 19 [2018-10-23 15:43:12,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:12,905 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-10-23 15:43:12,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-23 15:43:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-10-23 15:43:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-23 15:43:12,907 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:12,907 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, 1, 1, 1] [2018-10-23 15:43:12,907 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:12,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:12,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1306036578, now seen corresponding path program 1 times [2018-10-23 15:43:12,908 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:12,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:12,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:12,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:12,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:12,980 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 15:43:12,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 15:43:12,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 15:43:12,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 15:43:12,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 15:43:12,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 15:43:12,984 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 3 states. [2018-10-23 15:43:13,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:13,229 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2018-10-23 15:43:13,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 15:43:13,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-10-23 15:43:13,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:13,233 INFO L225 Difference]: With dead ends: 81 [2018-10-23 15:43:13,233 INFO L226 Difference]: Without dead ends: 55 [2018-10-23 15:43:13,235 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 15:43:13,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-23 15:43:13,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 40. [2018-10-23 15:43:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-23 15:43:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2018-10-23 15:43:13,255 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 26 [2018-10-23 15:43:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:13,255 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2018-10-23 15:43:13,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 15:43:13,256 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-10-23 15:43:13,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-23 15:43:13,258 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:13,258 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-10-23 15:43:13,259 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:13,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:13,259 INFO L82 PathProgramCache]: Analyzing trace with hash -373199200, now seen corresponding path program 1 times [2018-10-23 15:43:13,259 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:13,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:13,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:13,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:13,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-23 15:43:13,410 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:43:13,410 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 15:43:13,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:13,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:43:13,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-23 15:43:13,541 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:43:13,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-10-23 15:43:13,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 15:43:13,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 15:43:13,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 15:43:13,543 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 5 states. [2018-10-23 15:43:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:13,960 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2018-10-23 15:43:13,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 15:43:13,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-10-23 15:43:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:13,963 INFO L225 Difference]: With dead ends: 102 [2018-10-23 15:43:13,963 INFO L226 Difference]: Without dead ends: 74 [2018-10-23 15:43:13,964 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 15:43:13,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-10-23 15:43:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 50. [2018-10-23 15:43:13,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-23 15:43:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-10-23 15:43:13,975 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 36 [2018-10-23 15:43:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:13,975 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-10-23 15:43:13,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 15:43:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-10-23 15:43:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-23 15:43:13,979 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:13,979 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2018-10-23 15:43:13,979 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:13,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:13,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1086815326, now seen corresponding path program 2 times [2018-10-23 15:43:13,981 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:13,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:13,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:13,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:13,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-23 15:43:14,154 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:43:14,155 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) [2018-10-23 15:43:14,171 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 15:43:14,219 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-23 15:43:14,219 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:43:14,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:43:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-23 15:43:14,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 15:43:14,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2018-10-23 15:43:14,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 15:43:14,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 15:43:14,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-23 15:43:14,395 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 8 states. [2018-10-23 15:43:14,670 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-23 15:43:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:14,984 INFO L93 Difference]: Finished difference Result 126 states and 146 transitions. [2018-10-23 15:43:14,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-23 15:43:14,985 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-10-23 15:43:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:14,986 INFO L225 Difference]: With dead ends: 126 [2018-10-23 15:43:14,986 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 15:43:14,988 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-10-23 15:43:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 15:43:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 15:43:14,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 15:43:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 15:43:14,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-10-23 15:43:14,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:14,992 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 15:43:14,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 15:43:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 15:43:14,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 15:43:14,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 15:43:15,053 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 20) no Hoare annotation was computed. [2018-10-23 15:43:15,054 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 20) no Hoare annotation was computed. [2018-10-23 15:43:15,054 INFO L428 ceAbstractionStarter]: At program point L19-4(lines 19 20) the Hoare annotation is: true [2018-10-23 15:43:15,054 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 20) no Hoare annotation was computed. [2018-10-23 15:43:15,054 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-23 15:43:15,054 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-23 15:43:15,054 INFO L425 ceAbstractionStarter]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2018-10-23 15:43:15,055 INFO L425 ceAbstractionStarter]: For program point L28-2(lines 28 29) no Hoare annotation was computed. [2018-10-23 15:43:15,055 INFO L428 ceAbstractionStarter]: At program point L28-4(lines 28 29) the Hoare annotation is: true [2018-10-23 15:43:15,055 INFO L425 ceAbstractionStarter]: For program point L28-5(lines 28 29) no Hoare annotation was computed. [2018-10-23 15:43:15,055 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-23 15:43:15,055 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-23 15:43:15,055 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-23 15:43:15,056 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-23 15:43:15,056 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-23 15:43:15,056 INFO L428 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2018-10-23 15:43:15,056 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 51) no Hoare annotation was computed. [2018-10-23 15:43:15,056 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-23 15:43:15,056 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 51) no Hoare annotation was computed. [2018-10-23 15:43:15,057 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 24) no Hoare annotation was computed. [2018-10-23 15:43:15,057 INFO L425 ceAbstractionStarter]: For program point L23-3(lines 23 24) no Hoare annotation was computed. [2018-10-23 15:43:15,057 INFO L428 ceAbstractionStarter]: At program point L23-4(lines 23 24) the Hoare annotation is: true [2018-10-23 15:43:15,057 INFO L425 ceAbstractionStarter]: For program point L23-5(lines 23 24) no Hoare annotation was computed. [2018-10-23 15:43:15,057 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-23 15:43:15,057 INFO L425 ceAbstractionStarter]: For program point L32-1(lines 32 33) no Hoare annotation was computed. [2018-10-23 15:43:15,058 INFO L425 ceAbstractionStarter]: For program point L32-2(lines 32 33) no Hoare annotation was computed. [2018-10-23 15:43:15,058 INFO L428 ceAbstractionStarter]: At program point L32-4(lines 32 33) the Hoare annotation is: true [2018-10-23 15:43:15,058 INFO L425 ceAbstractionStarter]: For program point L32-5(lines 15 58) no Hoare annotation was computed. [2018-10-23 15:43:15,058 INFO L428 ceAbstractionStarter]: At program point L57(lines 14 58) the Hoare annotation is: true [2018-10-23 15:43:15,058 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-23 15:43:15,058 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-10-23 15:43:15,059 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,059 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,059 INFO L425 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,059 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,059 INFO L425 ceAbstractionStarter]: For program point L16-4(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,059 INFO L425 ceAbstractionStarter]: For program point L16-5(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,059 INFO L425 ceAbstractionStarter]: For program point L16-6(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,060 INFO L425 ceAbstractionStarter]: For program point L16-7(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,060 INFO L425 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-10-23 15:43:15,060 INFO L425 ceAbstractionStarter]: For program point L16-8(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,060 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-10-23 15:43:15,060 INFO L425 ceAbstractionStarter]: For program point L16-9(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,060 INFO L425 ceAbstractionStarter]: For program point L41-2(lines 41 50) no Hoare annotation was computed. [2018-10-23 15:43:15,060 INFO L425 ceAbstractionStarter]: For program point L16-10(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,061 INFO L425 ceAbstractionStarter]: For program point L16-11(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,061 INFO L428 ceAbstractionStarter]: At program point L41-4(lines 39 51) the Hoare annotation is: true [2018-10-23 15:43:15,061 INFO L425 ceAbstractionStarter]: For program point L16-12(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,061 INFO L425 ceAbstractionStarter]: For program point L16-13(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,061 INFO L425 ceAbstractionStarter]: For program point L16-14(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,061 INFO L425 ceAbstractionStarter]: For program point L16-15(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,061 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-23 15:43:15,061 INFO L425 ceAbstractionStarter]: For program point L16-16(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,062 INFO L425 ceAbstractionStarter]: For program point L16-17(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,062 INFO L425 ceAbstractionStarter]: For program point L16-18(line 16) no Hoare annotation was computed. [2018-10-23 15:43:15,062 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-23 15:43:15,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 03:43:15 BoogieIcfgContainer [2018-10-23 15:43:15,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 15:43:15,070 INFO L168 Benchmark]: Toolchain (without parser) took 3568.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -634.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 7.1 GB. [2018-10-23 15:43:15,071 INFO L168 Benchmark]: CDTParser took 0.24 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 15:43:15,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.43 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 15:43:15,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 15:43:15,073 INFO L168 Benchmark]: Boogie Preprocessor took 31.39 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 15:43:15,074 INFO L168 Benchmark]: RCFGBuilder took 680.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2018-10-23 15:43:15,075 INFO L168 Benchmark]: TraceAbstraction took 2499.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 7.1 GB. [2018-10-23 15:43:15,079 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 305.43 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 46.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.39 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 680.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2499.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 148 SDtfs, 91 SDslu, 217 SDs, 0 SdLazy, 199 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 24 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 209 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 10869 SizeOfPredicates, 6 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 31/44 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...