java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/multivar_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:35:03,310 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:35:03,313 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:35:03,325 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:35:03,325 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:35:03,327 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:35:03,328 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:35:03,330 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:35:03,331 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:35:03,332 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:35:03,333 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:35:03,334 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:35:03,335 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:35:03,336 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:35:03,337 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:35:03,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:35:03,339 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:35:03,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:35:03,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:35:03,344 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:35:03,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:35:03,347 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:35:03,349 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 23:35:03,359 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 [2018-07-23 23:35:03,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:35:03,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:35:03,376 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:35:03,376 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:35:03,377 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:35:03,377 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:35:03,377 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:35:03,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:35:03,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:35:03,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:35:03,378 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:35:03,378 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:35:03,378 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:35:03,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:35:03,379 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:35:03,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:35:03,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:35:03,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:35:03,380 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:35:03,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:35:03,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:35:03,380 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:35:03,381 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:35:03,381 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:35:03,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:35:03,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:35:03,381 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:35:03,382 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:35:03,452 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:35:03,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:35:03,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:35:03,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:35:03,472 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:35:03,473 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_true-unreach-call1_true-termination.i [2018-07-23 23:35:03,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e68426c/054f97407eda4ee698ac03a03563bad5/FLAGc1166e2c3 [2018-07-23 23:35:04,001 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:35:04,002 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_true-unreach-call1_true-termination.i [2018-07-23 23:35:04,009 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e68426c/054f97407eda4ee698ac03a03563bad5/FLAGc1166e2c3 [2018-07-23 23:35:04,030 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e68426c/054f97407eda4ee698ac03a03563bad5 [2018-07-23 23:35:04,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:35:04,045 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:35:04,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:35:04,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:35:04,055 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:35:04,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4439e19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04, skipping insertion in model container [2018-07-23 23:35:04,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,215 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:35:04,248 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:35:04,263 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:35:04,267 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:35:04,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04 WrapperNode [2018-07-23 23:35:04,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:35:04,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:35:04,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:35:04,279 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:35:04,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:35:04,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:35:04,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:35:04,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:35:04,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (1/1) ... [2018-07-23 23:35:04,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:35:04,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:35:04,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:35:04,333 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:35:04,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (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 [2018-07-23 23:35:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:35:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:35:04,633 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:35:04,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:35:04 BoogieIcfgContainer [2018-07-23 23:35:04,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:35:04,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:35:04,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:35:04,638 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:35:04,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:35:04" (1/3) ... [2018-07-23 23:35:04,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073e74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:35:04, skipping insertion in model container [2018-07-23 23:35:04,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:35:04" (2/3) ... [2018-07-23 23:35:04,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073e74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:35:04, skipping insertion in model container [2018-07-23 23:35:04,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:35:04" (3/3) ... [2018-07-23 23:35:04,642 INFO L112 eAbstractionObserver]: Analyzing ICFG multivar_true-unreach-call1_true-termination.i [2018-07-23 23:35:04,652 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:35:04,660 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:35:04,703 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:35:04,703 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:35:04,703 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:35:04,704 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:35:04,704 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:35:04,704 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:35:04,704 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:35:04,704 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:35:04,704 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:35:04,718 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-07-23 23:35:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 23:35:04,724 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:35:04,725 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-23 23:35:04,726 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:35:04,731 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-07-23 23:35:04,733 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:35:04,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:35:04,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:35:04,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:35:04,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:35:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:35:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:35:04,828 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:35:04,828 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 23:35:04,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 23:35:04,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 23:35:04,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:35:04,846 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-07-23 23:35:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:35:04,860 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-07-23 23:35:04,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 23:35:04,862 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-07-23 23:35:04,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:35:04,872 INFO L225 Difference]: With dead ends: 20 [2018-07-23 23:35:04,872 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 23:35:04,875 INFO L573 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 [2018-07-23 23:35:04,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 23:35:04,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 23:35:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 23:35:04,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 23:35:04,908 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 23:35:04,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:35:04,908 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 23:35:04,908 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 23:35:04,908 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 23:35:04,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 23:35:04,909 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:35:04,909 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:35:04,909 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:35:04,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-07-23 23:35:04,910 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:35:04,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:35:04,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:35:04,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:35:04,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:35:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:35:05,151 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-07-23 23:35:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:35:05,197 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:35:05,197 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 23:35:05,199 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 23:35:05,200 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 23:35:05,200 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:35:05,200 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2018-07-23 23:35:05,450 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 23:35:05,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:35:05,453 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 23:35:05,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 23:35:05,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-07-23 23:35:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:35:05,454 INFO L225 Difference]: With dead ends: 8 [2018-07-23 23:35:05,454 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 23:35:05,456 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:35:05,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 23:35:05,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 23:35:05,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 23:35:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 23:35:05,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-07-23 23:35:05,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:35:05,459 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 23:35:05,459 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 23:35:05,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 23:35:05,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 23:35:05,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 23:35:05,516 INFO L421 ceAbstractionStarter]: For program point L12'''(lines 12 15) no Hoare annotation was computed. [2018-07-23 23:35:05,517 INFO L417 ceAbstractionStarter]: At program point L12''(lines 12 15) the Hoare annotation is: (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0) [2018-07-23 23:35:05,517 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-07-23 23:35:05,517 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-23 23:35:05,517 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-23 23:35:05,517 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-23 23:35:05,518 INFO L424 ceAbstractionStarter]: At program point L4''(lines 3 8) the Hoare annotation is: true [2018-07-23 23:35:05,518 INFO L421 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2018-07-23 23:35:05,518 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startErr0AssertViolationERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-07-23 23:35:05,518 INFO L421 ceAbstractionStarter]: For program point L9(lines 9 17) no Hoare annotation was computed. [2018-07-23 23:35:05,518 INFO L421 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-07-23 23:35:05,518 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-23 23:35:05,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:35:05 BoogieIcfgContainer [2018-07-23 23:35:05,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:35:05,538 INFO L168 Benchmark]: Toolchain (without parser) took 1494.56 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -715.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:35:05,540 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-07-23 23:35:05,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.18 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. [2018-07-23 23:35:05,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.46 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. [2018-07-23 23:35:05,545 INFO L168 Benchmark]: Boogie Preprocessor took 20.91 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. [2018-07-23 23:35:05,545 INFO L168 Benchmark]: RCFGBuilder took 301.01 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -757.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-07-23 23:35:05,547 INFO L168 Benchmark]: TraceAbstraction took 902.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2018-07-23 23:35:05,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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. * CACSL2BoogieTranslator took 232.18 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 32.46 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 20.91 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 301.01 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -757.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 902.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 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: 12]: Loop Invariant Derived loop invariant: x == y - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/multivar_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-35-05-585.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/multivar_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-35-05-585.csv Received shutdown request...