java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:50:19,024 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:50:19,026 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:50:19,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:50:19,041 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:50:19,042 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:50:19,043 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:50:19,045 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:50:19,046 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:50:19,049 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:50:19,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:50:19,050 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:50:19,051 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:50:19,052 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:50:19,053 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:50:19,054 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:50:19,055 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:50:19,057 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:50:19,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:50:19,062 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:50:19,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:50:19,069 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:50:19,074 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:50:19,091 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 [2018-10-22 15:50:19,123 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:50:19,123 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:50:19,124 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:50:19,124 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:50:19,125 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:50:19,125 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:50:19,125 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:50:19,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:50:19,126 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:50:19,126 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:50:19,126 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:50:19,126 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:50:19,126 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:50:19,127 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:50:19,128 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:50:19,128 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:50:19,128 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:50:19,128 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:50:19,128 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:50:19,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:50:19,129 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:50:19,129 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:50:19,129 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:50:19,129 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:50:19,131 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:50:19,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:50:19,132 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:50:19,132 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:50:19,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:50:19,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:50:19,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:50:19,206 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:50:19,207 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:50:19,207 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-10-22 15:50:19,267 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73fea6cf4/485930b1c72c4e278541783ddd68336a/FLAGb7519a2d0 [2018-10-22 15:50:19,690 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:50:19,691 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-10-22 15:50:19,698 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73fea6cf4/485930b1c72c4e278541783ddd68336a/FLAGb7519a2d0 [2018-10-22 15:50:19,712 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73fea6cf4/485930b1c72c4e278541783ddd68336a [2018-10-22 15:50:19,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:50:19,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:50:19,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:50:19,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:50:19,729 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:50:19,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:50:19" (1/1) ... [2018-10-22 15:50:19,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714e4cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:19, skipping insertion in model container [2018-10-22 15:50:19,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:50:19" (1/1) ... [2018-10-22 15:50:19,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:50:19,768 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:50:19,957 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:50:19,961 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:50:19,982 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:50:20,001 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:50:20,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20 WrapperNode [2018-10-22 15:50:20,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:50:20,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:50:20,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:50:20,003 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:50:20,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:50:20,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:50:20,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:50:20,040 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:50:20,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (1/1) ... [2018-10-22 15:50:20,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:50:20,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:50:20,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:50:20,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:50:20,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (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 15:50:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:50:20,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:50:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 15:50:20,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 15:50:20,404 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:50:20,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:50:20 BoogieIcfgContainer [2018-10-22 15:50:20,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:50:20,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:50:20,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:50:20,409 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:50:20,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:50:19" (1/3) ... [2018-10-22 15:50:20,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a42e000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:50:20, skipping insertion in model container [2018-10-22 15:50:20,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:20" (2/3) ... [2018-10-22 15:50:20,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a42e000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:50:20, skipping insertion in model container [2018-10-22 15:50:20,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:50:20" (3/3) ... [2018-10-22 15:50:20,413 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007b_true-unreach-call_true-termination.c.i [2018-10-22 15:50:20,423 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:50:20,431 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:50:20,459 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:50:20,509 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:50:20,510 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:50:20,510 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:50:20,510 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:50:20,510 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:50:20,510 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:50:20,511 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:50:20,511 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:50:20,511 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:50:20,535 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-22 15:50:20,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-22 15:50:20,541 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:20,542 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:20,544 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:20,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:20,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1820683113, now seen corresponding path program 1 times [2018-10-22 15:50:20,553 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:20,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:20,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:20,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:20,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:20,702 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 15:50:20,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:50:20,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:50:20,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:50:20,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:50:20,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:50:20,723 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-10-22 15:50:20,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:20,744 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2018-10-22 15:50:20,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:50:20,746 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2018-10-22 15:50:20,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:20,756 INFO L225 Difference]: With dead ends: 30 [2018-10-22 15:50:20,757 INFO L226 Difference]: Without dead ends: 14 [2018-10-22 15:50:20,761 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 15:50:20,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-22 15:50:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-22 15:50:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-22 15:50:20,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-10-22 15:50:20,802 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2018-10-22 15:50:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:20,802 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-10-22 15:50:20,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:50:20,803 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-22 15:50:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-22 15:50:20,803 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:20,803 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:20,804 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:20,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:20,804 INFO L82 PathProgramCache]: Analyzing trace with hash 149783550, now seen corresponding path program 1 times [2018-10-22 15:50:20,805 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:20,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:20,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:20,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:20,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:21,029 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 15:50:21,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:50:21,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 15:50:21,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:50:21,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:50:21,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:50:21,033 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2018-10-22 15:50:21,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:21,154 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2018-10-22 15:50:21,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:50:21,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-22 15:50:21,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:21,156 INFO L225 Difference]: With dead ends: 26 [2018-10-22 15:50:21,156 INFO L226 Difference]: Without dead ends: 24 [2018-10-22 15:50:21,157 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:50:21,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-22 15:50:21,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-10-22 15:50:21,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-22 15:50:21,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2018-10-22 15:50:21,165 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2018-10-22 15:50:21,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:21,165 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2018-10-22 15:50:21,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:50:21,166 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-10-22 15:50:21,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:50:21,167 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:21,167 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:21,167 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:21,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:21,168 INFO L82 PathProgramCache]: Analyzing trace with hash -757597632, now seen corresponding path program 1 times [2018-10-22 15:50:21,168 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:21,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:21,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:21,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:21,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:21,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:50:21,336 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 [2018-10-22 15:50:21,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:21,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:50:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:21,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:50:21,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-10-22 15:50:21,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-22 15:50:21,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-22 15:50:21,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-10-22 15:50:21,781 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 11 states. [2018-10-22 15:50:22,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:22,295 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-10-22 15:50:22,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-22 15:50:22,296 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2018-10-22 15:50:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:22,298 INFO L225 Difference]: With dead ends: 43 [2018-10-22 15:50:22,298 INFO L226 Difference]: Without dead ends: 28 [2018-10-22 15:50:22,299 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-10-22 15:50:22,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-10-22 15:50:22,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-10-22 15:50:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-22 15:50:22,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2018-10-22 15:50:22,309 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 13 [2018-10-22 15:50:22,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:22,310 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2018-10-22 15:50:22,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-22 15:50:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-10-22 15:50:22,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-22 15:50:22,312 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:22,312 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:22,312 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:22,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:22,314 INFO L82 PathProgramCache]: Analyzing trace with hash -748753880, now seen corresponding path program 1 times [2018-10-22 15:50:22,314 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:22,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:22,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:22,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:22,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:22,406 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 15:50:22,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:50:22,407 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:50:22,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:22,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:50:22,456 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 15:50:22,477 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:50:22,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-22 15:50:22,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 15:50:22,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 15:50:22,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:50:22,479 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 6 states. [2018-10-22 15:50:22,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:22,888 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2018-10-22 15:50:22,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:50:22,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-10-22 15:50:22,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:22,890 INFO L225 Difference]: With dead ends: 32 [2018-10-22 15:50:22,890 INFO L226 Difference]: Without dead ends: 27 [2018-10-22 15:50:22,891 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:50:22,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-22 15:50:22,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-10-22 15:50:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-22 15:50:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2018-10-22 15:50:22,897 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 12 [2018-10-22 15:50:22,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:22,897 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2018-10-22 15:50:22,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 15:50:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-10-22 15:50:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-22 15:50:22,898 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:22,899 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:22,899 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:22,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:22,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1766391954, now seen corresponding path program 1 times [2018-10-22 15:50:22,900 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:22,900 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:22,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:22,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:22,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-22 15:50:22,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:50:22,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-22 15:50:22,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 15:50:22,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 15:50:22,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:50:22,971 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 6 states. [2018-10-22 15:50:23,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:23,109 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2018-10-22 15:50:23,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 15:50:23,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-22 15:50:23,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:23,110 INFO L225 Difference]: With dead ends: 27 [2018-10-22 15:50:23,110 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:50:23,111 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:50:23,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:50:23,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:50:23,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:50:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:50:23,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-22 15:50:23,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:23,112 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:50:23,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 15:50:23,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:50:23,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:50:23,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:50:23,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-22 15:50:23,317 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-22 15:50:23,422 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2018-10-22 15:50:23,471 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:50:23,471 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-22 15:50:23,471 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed. [2018-10-22 15:50:23,471 INFO L425 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2018-10-22 15:50:23,472 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:50:23,472 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:50:23,472 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:50:23,472 INFO L428 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2018-10-22 15:50:23,472 INFO L421 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (or (<= ULTIMATE.start_main_~m~0 0) (<= ULTIMATE.start_main_~n~0 0) (and (<= 0 ULTIMATE.start_main_~x~0) (<= (+ ULTIMATE.start_main_~m~0 1) ULTIMATE.start_main_~n~0))) [2018-10-22 15:50:23,472 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 19) no Hoare annotation was computed. [2018-10-22 15:50:23,473 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 19) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~m~0)) (.cse1 (<= 0 ULTIMATE.start_main_~x~0))) (or (and .cse0 (<= ULTIMATE.start_main_~n~0 0) .cse1) (and .cse0 .cse1 (<= (+ ULTIMATE.start_main_~m~0 1) ULTIMATE.start_main_~n~0)))) [2018-10-22 15:50:23,473 INFO L421 ceAbstractionStarter]: At program point L14-4(lines 14 19) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~m~0)) (.cse1 (<= 0 ULTIMATE.start_main_~x~0))) (or (and (<= ULTIMATE.start_main_~m~0 0) .cse0) (and .cse0 (<= ULTIMATE.start_main_~n~0 0) .cse1) (and .cse0 .cse1 (<= (+ ULTIMATE.start_main_~m~0 1) ULTIMATE.start_main_~n~0)))) [2018-10-22 15:50:23,473 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 15:50:23,473 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 15:50:23,474 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 15:50:23,474 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 15:50:23,474 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 15:50:23,474 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 15:50:23,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:50:23 BoogieIcfgContainer [2018-10-22 15:50:23,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:50:23,487 INFO L168 Benchmark]: Toolchain (without parser) took 3764.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -658.9 MB). Peak memory consumption was 97.7 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:23,489 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 15:50:23,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.78 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 15:50:23,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.53 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 15:50:23,491 INFO L168 Benchmark]: Boogie Preprocessor took 17.51 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 15:50:23,492 INFO L168 Benchmark]: RCFGBuilder took 347.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -809.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:23,493 INFO L168 Benchmark]: TraceAbstraction took 3081.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 140.3 MB). Peak memory consumption was 140.3 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:23,498 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 277.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.53 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 17.51 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 347.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -809.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3081.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 140.3 MB). Peak memory consumption was 140.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: ((0 <= m && n <= 0) && 0 <= x) || ((0 <= m && 0 <= x) && m + 1 <= n) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 52 SDslu, 157 SDs, 0 SdLazy, 165 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 14 PreInvPairs, 26 NumberOfFragments, 71 HoareAnnotationTreeSize, 14 FomulaSimplifications, 85 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 2641 SizeOfPredicates, 6 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 13/18 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...