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/loops/string_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:30:10,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:30:10,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:30:10,627 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:30:10,627 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:30:10,628 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:30:10,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:30:10,632 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:30:10,633 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:30:10,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:30:10,635 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:30:10,636 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:30:10,637 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:30:10,638 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:30:10,639 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:30:10,640 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:30:10,641 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:30:10,643 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:30:10,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:30:10,646 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:30:10,647 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:30:10,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:30:10,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 23:30:10,651 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 23:30:10,651 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 23:30:10,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 23:30:10,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 23:30:10,657 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 23:30:10,658 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 23:30:10,659 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 23:30:10,659 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 23:30:10,660 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 23:30:10,665 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 23:30:10,697 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:30:10,697 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:30:10,698 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:30:10,698 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:30:10,699 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:30:10,699 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:30:10,699 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:30:10,699 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:30:10,700 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:30:10,700 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:30:10,700 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:30:10,700 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:30:10,704 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:30:10,704 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:30:10,704 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:30:10,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:30:10,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:30:10,706 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:30:10,706 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:30:10,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:30:10,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:30:10,706 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:30:10,707 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:30:10,707 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:30:10,707 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:30:10,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:30:10,707 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:30:10,707 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:30:10,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:30:10,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:30:10,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:30:10,781 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:30:10,782 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:30:10,782 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-07-23 23:30:11,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80745ecf9/4e9147ccf3124a93a8a0a2d83119ea17/FLAG120edc508 [2018-07-23 23:30:11,282 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:30:11,282 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-07-23 23:30:11,289 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80745ecf9/4e9147ccf3124a93a8a0a2d83119ea17/FLAG120edc508 [2018-07-23 23:30:11,303 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80745ecf9/4e9147ccf3124a93a8a0a2d83119ea17 [2018-07-23 23:30:11,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:30:11,314 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:30:11,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:30:11,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:30:11,322 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:30:11,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8b2370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11, skipping insertion in model container [2018-07-23 23:30:11,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,490 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:30:11,547 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:30:11,563 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:30:11,578 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:30:11,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11 WrapperNode [2018-07-23 23:30:11,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:30:11,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:30:11,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:30:11,597 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:30:11,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:30:11,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:30:11,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:30:11,648 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:30:11,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (1/1) ... [2018-07-23 23:30:11,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:30:11,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:30:11,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:30:11,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:30:11,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (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 23:30:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:30:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:30:12,316 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:30:12,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:30:12 BoogieIcfgContainer [2018-07-23 23:30:12,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:30:12,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:30:12,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:30:12,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:30:12,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:30:11" (1/3) ... [2018-07-23 23:30:12,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe1b615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:30:12, skipping insertion in model container [2018-07-23 23:30:12,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:11" (2/3) ... [2018-07-23 23:30:12,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe1b615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:30:12, skipping insertion in model container [2018-07-23 23:30:12,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:30:12" (3/3) ... [2018-07-23 23:30:12,325 INFO L112 eAbstractionObserver]: Analyzing ICFG string_true-unreach-call_true-termination.i [2018-07-23 23:30:12,333 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:30:12,342 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:30:12,390 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:30:12,391 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:30:12,391 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:30:12,391 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:30:12,391 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:30:12,391 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:30:12,392 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:30:12,392 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:30:12,392 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:30:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-07-23 23:30:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 23:30:12,415 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:12,416 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:12,416 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:12,422 INFO L82 PathProgramCache]: Analyzing trace with hash 881692891, now seen corresponding path program 1 times [2018-07-23 23:30:12,424 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:12,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:12,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:12,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:12,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:12,534 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 23:30:12,537 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:30:12,537 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 23:30:12,542 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 23:30:12,557 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 23:30:12,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:30:12,560 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-07-23 23:30:12,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:12,578 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2018-07-23 23:30:12,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 23:30:12,579 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-07-23 23:30:12,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:12,590 INFO L225 Difference]: With dead ends: 49 [2018-07-23 23:30:12,590 INFO L226 Difference]: Without dead ends: 23 [2018-07-23 23:30:12,594 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 23:30:12,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-23 23:30:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-07-23 23:30:12,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-23 23:30:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-07-23 23:30:12,630 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 14 [2018-07-23 23:30:12,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:12,631 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-07-23 23:30:12,631 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 23:30:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-07-23 23:30:12,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 23:30:12,632 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:12,633 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:12,633 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:12,633 INFO L82 PathProgramCache]: Analyzing trace with hash 2115770290, now seen corresponding path program 1 times [2018-07-23 23:30:12,634 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:12,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:12,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:12,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:12,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:12,680 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 23:30:12,681 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:30:12,681 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:30:12,683 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:30:12,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:30:12,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:30:12,684 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 3 states. [2018-07-23 23:30:12,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:12,818 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-07-23 23:30:12,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:30:12,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-07-23 23:30:12,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:12,822 INFO L225 Difference]: With dead ends: 54 [2018-07-23 23:30:12,822 INFO L226 Difference]: Without dead ends: 36 [2018-07-23 23:30:12,823 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:30:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-23 23:30:12,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2018-07-23 23:30:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 23:30:12,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2018-07-23 23:30:12,830 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 19 [2018-07-23 23:30:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:12,830 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-07-23 23:30:12,830 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:30:12,830 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-07-23 23:30:12,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-23 23:30:12,831 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:12,832 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:12,832 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:12,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1386234513, now seen corresponding path program 1 times [2018-07-23 23:30:12,832 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:12,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:12,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:12,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:12,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-23 23:30:12,903 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:12,903 INFO L221 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 [2018-07-23 23:30:12,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:12,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-23 23:30:13,006 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:13,006 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-07-23 23:30:13,007 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:30:13,007 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:30:13,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:30:13,008 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 4 states. [2018-07-23 23:30:13,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:13,391 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2018-07-23 23:30:13,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 23:30:13,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-07-23 23:30:13,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:13,393 INFO L225 Difference]: With dead ends: 69 [2018-07-23 23:30:13,393 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 23:30:13,394 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:30:13,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 23:30:13,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33. [2018-07-23 23:30:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-23 23:30:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-07-23 23:30:13,400 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 25 [2018-07-23 23:30:13,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:13,401 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-07-23 23:30:13,401 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:30:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-07-23 23:30:13,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 23:30:13,402 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:13,402 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:13,403 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:13,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2072202706, now seen corresponding path program 2 times [2018-07-23 23:30:13,403 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:13,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:13,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:13,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:13,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:13,528 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-23 23:30:13,529 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:13,529 INFO L221 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 [2018-07-23 23:30:13,541 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:30:13,562 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-07-23 23:30:13,562 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:30:13,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-07-23 23:30:13,684 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:30:13,684 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2018-07-23 23:30:13,685 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 23:30:13,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 23:30:13,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-23 23:30:13,685 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 8 states. [2018-07-23 23:30:14,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:14,067 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2018-07-23 23:30:14,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 23:30:14,069 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-07-23 23:30:14,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:14,069 INFO L225 Difference]: With dead ends: 84 [2018-07-23 23:30:14,070 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 23:30:14,071 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-07-23 23:30:14,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 23:30:14,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 23:30:14,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 23:30:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 23:30:14,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-07-23 23:30:14,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:14,072 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 23:30:14,073 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 23:30:14,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 23:30:14,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 23:30:14,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 23:30:14,101 INFO L421 ceAbstractionStarter]: For program point L23(lines 23 24) no Hoare annotation was computed. [2018-07-23 23:30:14,101 INFO L424 ceAbstractionStarter]: At program point L32''(lines 32 33) the Hoare annotation is: true [2018-07-23 23:30:14,101 INFO L421 ceAbstractionStarter]: For program point L19''(lines 19 20) no Hoare annotation was computed. [2018-07-23 23:30:14,101 INFO L424 ceAbstractionStarter]: At program point L23'''(lines 23 24) the Hoare annotation is: true [2018-07-23 23:30:14,102 INFO L421 ceAbstractionStarter]: For program point L28(lines 28 29) no Hoare annotation was computed. [2018-07-23 23:30:14,102 INFO L421 ceAbstractionStarter]: For program point L19''''(lines 15 58) no Hoare annotation was computed. [2018-07-23 23:30:14,102 INFO L421 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-07-23 23:30:14,102 INFO L421 ceAbstractionStarter]: For program point L32'''(lines 15 58) no Hoare annotation was computed. [2018-07-23 23:30:14,102 INFO L424 ceAbstractionStarter]: At program point L5''(lines 4 9) the Hoare annotation is: true [2018-07-23 23:30:14,102 INFO L424 ceAbstractionStarter]: At program point L19'''(lines 19 20) the Hoare annotation is: true [2018-07-23 23:30:14,102 INFO L424 ceAbstractionStarter]: At program point L41''(lines 39 51) the Hoare annotation is: true [2018-07-23 23:30:14,102 INFO L421 ceAbstractionStarter]: For program point L39(lines 39 51) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L424 ceAbstractionStarter]: At program point L28''(lines 28 29) the Hoare annotation is: true [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point L23''''(lines 15 58) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point L39''(lines 39 51) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-07-23 23:30:14,103 INFO L421 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-07-23 23:30:14,104 INFO L421 ceAbstractionStarter]: For program point L23''(lines 23 24) no Hoare annotation was computed. [2018-07-23 23:30:14,104 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startErr0AssertViolationERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-07-23 23:30:14,104 INFO L424 ceAbstractionStarter]: At program point L57(lines 14 58) the Hoare annotation is: true [2018-07-23 23:30:14,104 INFO L421 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-07-23 23:30:14,104 INFO L421 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-07-23 23:30:14,104 INFO L421 ceAbstractionStarter]: For program point L28'''(lines 28 29) no Hoare annotation was computed. [2018-07-23 23:30:14,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:30:14 BoogieIcfgContainer [2018-07-23 23:30:14,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:30:14,112 INFO L168 Benchmark]: Toolchain (without parser) took 2798.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -682.9 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2018-07-23 23:30:14,114 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-07-23 23:30:14,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.13 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 23:30:14,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.66 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 23:30:14,116 INFO L168 Benchmark]: Boogie Preprocessor took 45.78 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 23:30:14,117 INFO L168 Benchmark]: RCFGBuilder took 622.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-07-23 23:30:14,118 INFO L168 Benchmark]: TraceAbstraction took 1792.88 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: 102.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. [2018-07-23 23:30:14,122 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 281.13 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 50.66 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 45.78 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 622.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1792.88 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: 102.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 SDtfs, 70 SDslu, 102 SDs, 0 SdLazy, 123 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 24 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 145 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 5257 SizeOfPredicates, 6 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 25/36 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/string_true-unreach-call_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-30-14-137.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/string_true-unreach-call_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-30-14-137.csv Received shutdown request...