java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:44:15,069 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:44:15,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:44:15,093 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:44:15,094 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:44:15,095 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:44:15,096 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:44:15,098 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:44:15,099 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:44:15,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:44:15,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:44:15,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:44:15,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:44:15,104 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:44:15,105 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:44:15,109 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:44:15,110 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:44:15,112 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:44:15,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:44:15,117 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:44:15,118 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:44:15,119 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:44:15,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:44:15,122 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:44:15,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:44:15,123 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:44:15,124 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:44:15,125 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:44:15,125 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:44:15,126 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:44:15,127 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:44:15,127 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 22:44:15,129 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:44:15,144 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:44:15,144 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:44:15,145 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:44:15,145 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:44:15,146 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:44:15,146 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:44:15,146 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:44:15,147 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:44:15,147 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:44:15,147 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:44:15,147 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:44:15,147 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:44:15,148 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:44:15,148 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:44:15,148 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:44:15,148 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:44:15,148 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:44:15,149 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:44:15,149 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:44:15,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:44:15,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:44:15,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:44:15,150 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:44:15,150 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:44:15,150 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:44:15,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:44:15,150 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:44:15,150 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:44:15,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:44:15,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:44:15,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:44:15,217 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:44:15,217 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:44:15,218 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i [2018-11-06 22:44:15,273 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596f4af1f/c895f596f5f14191b1fd8e3048964e60/FLAG0d3e30656 [2018-11-06 22:44:15,703 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:44:15,703 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i [2018-11-06 22:44:15,709 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596f4af1f/c895f596f5f14191b1fd8e3048964e60/FLAG0d3e30656 [2018-11-06 22:44:15,724 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596f4af1f/c895f596f5f14191b1fd8e3048964e60 [2018-11-06 22:44:15,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:44:15,734 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:44:15,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:44:15,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:44:15,739 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:44:15,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:15" (1/1) ... [2018-11-06 22:44:15,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86a71ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:15, skipping insertion in model container [2018-11-06 22:44:15,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:15" (1/1) ... [2018-11-06 22:44:15,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:44:15,775 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:44:16,009 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:44:16,014 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:44:16,032 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:44:16,050 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:44:16,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16 WrapperNode [2018-11-06 22:44:16,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:44:16,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:44:16,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:44:16,051 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:44:16,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:44:16,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:44:16,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:44:16,084 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:44:16,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... [2018-11-06 22:44:16,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:44:16,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:44:16,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:44:16,102 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:44:16,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 22:44:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:44:16,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:44:16,392 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:44:16,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:16 BoogieIcfgContainer [2018-11-06 22:44:16,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:44:16,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:44:16,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:44:16,397 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:44:16,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:15" (1/3) ... [2018-11-06 22:44:16,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484b1d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:16, skipping insertion in model container [2018-11-06 22:44:16,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:16" (2/3) ... [2018-11-06 22:44:16,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484b1d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:16, skipping insertion in model container [2018-11-06 22:44:16,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:16" (3/3) ... [2018-11-06 22:44:16,400 INFO L112 eAbstractionObserver]: Analyzing ICFG const_true-unreach-call1.i [2018-11-06 22:44:16,410 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:44:16,418 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:44:16,435 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:44:16,465 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:44:16,466 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:44:16,466 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:44:16,466 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:44:16,466 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:44:16,467 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:44:16,467 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:44:16,467 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:44:16,467 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:44:16,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-06 22:44:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-06 22:44:16,487 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:44:16,488 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-11-06 22:44:16,490 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:44:16,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:44:16,495 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-11-06 22:44:16,498 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:44:16,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:44:16,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:16,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:44:16,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:44:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:44:16,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:44:16,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 22:44:16,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-06 22:44:16,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-06 22:44:16,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:44:16,628 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-11-06 22:44:16,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:44:16,643 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-06 22:44:16,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:44:16,644 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-11-06 22:44:16,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:44:16,653 INFO L225 Difference]: With dead ends: 20 [2018-11-06 22:44:16,653 INFO L226 Difference]: Without dead ends: 8 [2018-11-06 22:44:16,657 INFO L604 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 [2018-11-06 22:44:16,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-11-06 22:44:16,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-06 22:44:16,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-06 22:44:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-11-06 22:44:16,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-11-06 22:44:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:44:16,691 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-11-06 22:44:16,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-06 22:44:16,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-11-06 22:44:16,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-06 22:44:16,692 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:44:16,692 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:44:16,693 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:44:16,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:44:16,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-11-06 22:44:16,694 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:44:16,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:44:16,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:16,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:44:16,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:44:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:44:16,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:44:16,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 22:44:16,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 22:44:16,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 22:44:16,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:44:16,844 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2018-11-06 22:44:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:44:16,893 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-06 22:44:16,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 22:44:16,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-06 22:44:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:44:16,894 INFO L225 Difference]: With dead ends: 14 [2018-11-06 22:44:16,895 INFO L226 Difference]: Without dead ends: 10 [2018-11-06 22:44:16,896 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:44:16,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-11-06 22:44:16,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-11-06 22:44:16,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-06 22:44:16,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-11-06 22:44:16,899 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-11-06 22:44:16,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:44:16,899 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-11-06 22:44:16,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 22:44:16,903 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-11-06 22:44:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-06 22:44:16,903 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:44:16,904 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:44:16,904 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:44:16,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:44:16,904 INFO L82 PathProgramCache]: Analyzing trace with hash 373599493, now seen corresponding path program 1 times [2018-11-06 22:44:16,907 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:44:16,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:44:16,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:16,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:44:16,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:44:17,077 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-06 22:44:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:44:17,132 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:44:17,132 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 22:44:17,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:44:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:44:17,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:44:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:44:17,240 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:44:17,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-06 22:44:17,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:44:17,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:44:17,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:44:17,242 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2018-11-06 22:44:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:44:17,286 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-06 22:44:17,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:44:17,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-06 22:44:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:44:17,288 INFO L225 Difference]: With dead ends: 16 [2018-11-06 22:44:17,288 INFO L226 Difference]: Without dead ends: 12 [2018-11-06 22:44:17,288 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:44:17,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-06 22:44:17,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-06 22:44:17,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-06 22:44:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-06 22:44:17,294 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-11-06 22:44:17,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:44:17,294 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-06 22:44:17,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:44:17,294 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-06 22:44:17,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-06 22:44:17,295 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:44:17,295 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-11-06 22:44:17,296 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:44:17,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:44:17,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1700389313, now seen corresponding path program 2 times [2018-11-06 22:44:17,296 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:44:17,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:44:17,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:17,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:44:17,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:44:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:44:17,450 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:44:17,451 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 22:44:17,464 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-06 22:44:17,488 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-06 22:44:17,488 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-06 22:44:17,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:44:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:44:17,535 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:44:17,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-06 22:44:17,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:44:17,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:44:17,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:44:17,536 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-11-06 22:44:17,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:44:17,595 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-06 22:44:17,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 22:44:17,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-06 22:44:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:44:17,598 INFO L225 Difference]: With dead ends: 18 [2018-11-06 22:44:17,599 INFO L226 Difference]: Without dead ends: 14 [2018-11-06 22:44:17,599 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:44:17,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-06 22:44:17,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-06 22:44:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-06 22:44:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-06 22:44:17,606 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-11-06 22:44:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:44:17,606 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-06 22:44:17,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:44:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-06 22:44:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-06 22:44:17,608 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:44:17,609 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2018-11-06 22:44:17,609 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:44:17,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:44:17,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1938806535, now seen corresponding path program 3 times [2018-11-06 22:44:17,610 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:44:17,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:44:17,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:17,614 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-06 22:44:17,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:44:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:44:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:44:17,979 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:44:17,979 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:44:17,996 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-06 22:44:18,017 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-06 22:44:18,018 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-06 22:44:18,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:44:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-06 22:44:18,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:44:18,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2018-11-06 22:44:18,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 22:44:18,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 22:44:18,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-06 22:44:18,100 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-11-06 22:44:18,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:44:18,342 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-11-06 22:44:18,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 22:44:18,342 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-06 22:44:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:44:18,343 INFO L225 Difference]: With dead ends: 18 [2018-11-06 22:44:18,343 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:44:18,345 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-11-06 22:44:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:44:18,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:44:18,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:44:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:44:18,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-06 22:44:18,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:44:18,346 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:44:18,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 22:44:18,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:44:18,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:44:18,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:44:18,413 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:44:18,414 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-06 22:44:18,414 INFO L425 ceAbstractionStarter]: For program point L11-1(lines 11 14) no Hoare annotation was computed. [2018-11-06 22:44:18,414 INFO L421 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: (or (= ULTIMATE.start_main_~x~0 0) (and (<= ULTIMATE.start_main_~y~0 0) (<= 0 ULTIMATE.start_main_~y~0))) [2018-11-06 22:44:18,414 INFO L425 ceAbstractionStarter]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2018-11-06 22:44:18,414 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-11-06 22:44:18,414 INFO L428 ceAbstractionStarter]: At program point L3-2(lines 2 7) the Hoare annotation is: true [2018-11-06 22:44:18,415 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:44:18,415 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:44:18,415 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:44:18,415 INFO L425 ceAbstractionStarter]: For program point L8(lines 8 16) no Hoare annotation was computed. [2018-11-06 22:44:18,415 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-06 22:44:18,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:44:18 BoogieIcfgContainer [2018-11-06 22:44:18,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:44:18,427 INFO L168 Benchmark]: Toolchain (without parser) took 2694.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -697.8 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2018-11-06 22:44:18,429 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-06 22:44:18,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:44:18,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.55 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. [2018-11-06 22:44:18,431 INFO L168 Benchmark]: Boogie Preprocessor took 17.49 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. [2018-11-06 22:44:18,431 INFO L168 Benchmark]: RCFGBuilder took 291.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:44:18,432 INFO L168 Benchmark]: TraceAbstraction took 2032.98 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: 94.9 MB). Peak memory consumption was 94.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:44:18,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 315.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 32.55 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 17.49 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 291.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2032.98 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: 94.9 MB). Peak memory consumption was 94.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x == 0 || (y <= 0 && 0 <= y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 1 SDslu, 58 SDs, 0 SdLazy, 60 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 30 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 79 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 2525 SizeOfPredicates, 5 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 12/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...