java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 23:07:36,330 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 23:07:36,332 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 23:07:36,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 23:07:36,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 23:07:36,345 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 23:07:36,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 23:07:36,348 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 23:07:36,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 23:07:36,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 23:07:36,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 23:07:36,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 23:07:36,352 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 23:07:36,353 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 23:07:36,354 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 23:07:36,356 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 23:07:36,359 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 23:07:36,361 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 23:07:36,362 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 23:07:36,364 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 23:07:36,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 23:07:36,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 23:07:36,367 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 23:07:36,368 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 23:07:36,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 23:07:36,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 23:07:36,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 23:07:36,372 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 23:07:36,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 23:07:36,372 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 23:07:36,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 23:07:36,373 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-24 23:07:36,383 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 23:07:36,384 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 23:07:36,384 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 23:07:36,385 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 23:07:36,385 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 23:07:36,385 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 23:07:36,385 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 23:07:36,385 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 23:07:36,386 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 23:07:36,386 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 23:07:36,386 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 23:07:36,387 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 23:07:36,387 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 23:07:36,387 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 23:07:36,387 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 23:07:36,387 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 23:07:36,388 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 23:07:36,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 23:07:36,388 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 23:07:36,388 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 23:07:36,388 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 23:07:36,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 23:07:36,389 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 23:07:36,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 23:07:36,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:07:36,389 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 23:07:36,389 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 23:07:36,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 23:07:36,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 23:07:36,390 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 23:07:36,390 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 23:07:36,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 23:07:36,391 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 23:07:36,391 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 23:07:36,392 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 23:07:36,392 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 23:07:36,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 23:07:36,442 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 23:07:36,446 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 23:07:36,448 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 23:07:36,448 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 23:07:36,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-01-24 23:07:36,664 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 23:07:36,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 23:07:36,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 23:07:36,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 23:07:36,683 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 23:07:36,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb333df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36, skipping insertion in model container [2018-01-24 23:07:36,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,709 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:07:36,778 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:07:36,906 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:07:36,925 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:07:36,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36 WrapperNode [2018-01-24 23:07:36,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 23:07:36,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 23:07:36,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 23:07:36,936 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 23:07:36,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... [2018-01-24 23:07:36,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 23:07:36,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 23:07:36,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 23:07:36,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 23:07:36,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (1/1) ... No working directory specified, using /storage/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 [2018-01-24 23:07:37,037 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 23:07:37,037 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 23:07:37,037 INFO L136 BoogieDeclarations]: Found implementation of procedure test_fun [2018-01-24 23:07:37,037 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 23:07:37,038 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 23:07:37,038 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 23:07:37,038 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 23:07:37,038 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 23:07:37,038 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 23:07:37,038 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 23:07:37,039 INFO L128 BoogieDeclarations]: Found specification of procedure test_fun [2018-01-24 23:07:37,039 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 23:07:37,039 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 23:07:37,039 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 23:07:37,311 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 23:07:37,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:07:37 BoogieIcfgContainer [2018-01-24 23:07:37,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 23:07:37,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 23:07:37,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 23:07:37,316 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 23:07:37,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:07:36" (1/3) ... [2018-01-24 23:07:37,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3981eff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:07:37, skipping insertion in model container [2018-01-24 23:07:37,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:07:36" (2/3) ... [2018-01-24 23:07:37,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3981eff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:07:37, skipping insertion in model container [2018-01-24 23:07:37,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:07:37" (3/3) ... [2018-01-24 23:07:37,320 INFO L105 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i [2018-01-24 23:07:37,327 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 23:07:37,333 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-01-24 23:07:37,380 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 23:07:37,380 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 23:07:37,380 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 23:07:37,381 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 23:07:37,381 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 23:07:37,381 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 23:07:37,381 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 23:07:37,381 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 23:07:37,382 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 23:07:37,410 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-24 23:07:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 23:07:37,417 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:07:37,419 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:07:37,419 INFO L371 AbstractCegarLoop]: === Iteration 1 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:07:37,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1616393893, now seen corresponding path program 1 times [2018-01-24 23:07:37,427 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:07:37,488 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:37,489 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:37,489 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:37,489 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:07:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:37,554 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:07:37,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:37,725 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:07:37,725 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 23:07:37,725 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:07:37,728 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 23:07:37,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 23:07:37,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:07:37,746 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 6 states. [2018-01-24 23:07:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:07:38,010 INFO L93 Difference]: Finished difference Result 84 states and 102 transitions. [2018-01-24 23:07:38,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 23:07:38,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-01-24 23:07:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:07:38,020 INFO L225 Difference]: With dead ends: 84 [2018-01-24 23:07:38,020 INFO L226 Difference]: Without dead ends: 41 [2018-01-24 23:07:38,024 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-24 23:07:38,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-24 23:07:38,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-24 23:07:38,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-24 23:07:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-01-24 23:07:38,059 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2018-01-24 23:07:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:07:38,059 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-01-24 23:07:38,059 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 23:07:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-01-24 23:07:38,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 23:07:38,060 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:07:38,060 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:07:38,060 INFO L371 AbstractCegarLoop]: === Iteration 2 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:07:38,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1616393894, now seen corresponding path program 1 times [2018-01-24 23:07:38,061 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:07:38,061 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:38,062 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:38,062 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:38,062 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:07:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:38,083 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:07:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:38,373 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:07:38,374 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 23:07:38,374 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:07:38,375 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 23:07:38,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 23:07:38,376 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 23:07:38,376 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 7 states. [2018-01-24 23:07:38,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:07:38,585 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2018-01-24 23:07:38,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 23:07:38,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-01-24 23:07:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:07:38,588 INFO L225 Difference]: With dead ends: 67 [2018-01-24 23:07:38,589 INFO L226 Difference]: Without dead ends: 60 [2018-01-24 23:07:38,590 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-01-24 23:07:38,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-24 23:07:38,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2018-01-24 23:07:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-01-24 23:07:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2018-01-24 23:07:38,600 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 14 [2018-01-24 23:07:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:07:38,601 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2018-01-24 23:07:38,601 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 23:07:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2018-01-24 23:07:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 23:07:38,602 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:07:38,602 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:07:38,603 INFO L371 AbstractCegarLoop]: === Iteration 3 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:07:38,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1978668179, now seen corresponding path program 1 times [2018-01-24 23:07:38,603 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:07:38,604 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:38,604 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:38,605 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:38,605 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:07:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:38,622 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:07:38,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:38,664 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:07:38,664 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 23:07:38,664 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:07:38,664 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:07:38,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:07:38,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:07:38,665 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 5 states. [2018-01-24 23:07:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:07:38,743 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2018-01-24 23:07:38,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:07:38,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-24 23:07:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:07:38,745 INFO L225 Difference]: With dead ends: 64 [2018-01-24 23:07:38,745 INFO L226 Difference]: Without dead ends: 58 [2018-01-24 23:07:38,745 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:07:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-24 23:07:38,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2018-01-24 23:07:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-01-24 23:07:38,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-01-24 23:07:38,752 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 18 [2018-01-24 23:07:38,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:07:38,752 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-01-24 23:07:38,752 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:07:38,752 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-01-24 23:07:38,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 23:07:38,753 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:07:38,753 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:07:38,753 INFO L371 AbstractCegarLoop]: === Iteration 4 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:07:38,753 INFO L82 PathProgramCache]: Analyzing trace with hash 35069262, now seen corresponding path program 1 times [2018-01-24 23:07:38,753 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:07:38,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:38,754 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:38,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:38,754 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:07:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:38,771 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:07:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:39,028 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 23:07:39,028 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 23:07:39,029 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-24 23:07:39,031 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [11], [12], [14], [17], [31], [33], [38], [56], [60], [68], [71], [75], [76], [82], [83], [84], [86] [2018-01-24 23:07:39,092 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 23:07:39,092 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 23:07:44,065 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 23:07:44,067 INFO L268 AbstractInterpreter]: Visited 21 different actions 31 times. Merged at 10 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-01-24 23:07:44,076 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 23:07:44,076 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 23:07:44,077 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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 [2018-01-24 23:07:44,095 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:44,096 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 23:07:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:44,135 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 23:07:44,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:44,336 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 23:07:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:44,554 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-01-24 23:07:44,554 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [9] total 14 [2018-01-24 23:07:44,554 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:07:44,555 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 23:07:44,555 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 23:07:44,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-01-24 23:07:44,555 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 6 states. [2018-01-24 23:07:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:07:44,715 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2018-01-24 23:07:44,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 23:07:44,715 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-01-24 23:07:44,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:07:44,717 INFO L225 Difference]: With dead ends: 116 [2018-01-24 23:07:44,717 INFO L226 Difference]: Without dead ends: 86 [2018-01-24 23:07:44,717 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-01-24 23:07:44,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-01-24 23:07:44,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2018-01-24 23:07:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-01-24 23:07:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2018-01-24 23:07:44,728 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 23 [2018-01-24 23:07:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:07:44,729 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2018-01-24 23:07:44,729 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 23:07:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2018-01-24 23:07:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 23:07:44,730 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:07:44,730 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:07:44,730 INFO L371 AbstractCegarLoop]: === Iteration 5 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:07:44,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1553278640, now seen corresponding path program 1 times [2018-01-24 23:07:44,731 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:07:44,732 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:44,732 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:44,732 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:44,732 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:07:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:44,748 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:07:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:44,970 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 23:07:44,970 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 23:07:44,970 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-24 23:07:44,970 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [11], [12], [14], [17], [31], [33], [38], [56], [60], [68], [73], [75], [76], [82], [83], [84], [86] [2018-01-24 23:07:44,971 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 23:07:44,971 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 23:07:51,157 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 23:07:51,157 INFO L268 AbstractInterpreter]: Visited 21 different actions 31 times. Merged at 10 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-01-24 23:07:51,159 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 23:07:51,159 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 23:07:51,159 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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 [2018-01-24 23:07:51,171 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:51,171 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 23:07:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:51,195 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 23:07:51,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 23:07:51,224 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 23:07:51,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 23:07:51,229 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-01-24 23:07:51,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:51,361 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 23:07:51,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:51,805 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 23:07:51,805 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 23:07:51,809 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:51,809 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 23:07:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:51,838 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 23:07:51,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 23:07:51,849 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 23:07:51,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 23:07:51,854 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-01-24 23:07:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:51,898 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 23:07:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:07:51,971 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 23:07:51,972 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7, 7, 7] total 18 [2018-01-24 23:07:51,972 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 23:07:51,972 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-24 23:07:51,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-24 23:07:51,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-01-24 23:07:51,973 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 13 states. [2018-01-24 23:07:52,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:07:52,224 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-01-24 23:07:52,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 23:07:52,244 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-01-24 23:07:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:07:52,245 INFO L225 Difference]: With dead ends: 83 [2018-01-24 23:07:52,245 INFO L226 Difference]: Without dead ends: 76 [2018-01-24 23:07:52,245 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2018-01-24 23:07:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-01-24 23:07:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 61. [2018-01-24 23:07:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 23:07:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2018-01-24 23:07:52,254 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 23 [2018-01-24 23:07:52,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:07:52,254 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2018-01-24 23:07:52,254 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-24 23:07:52,254 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2018-01-24 23:07:52,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 23:07:52,255 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:07:52,255 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:07:52,255 INFO L371 AbstractCegarLoop]: === Iteration 6 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:07:52,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1156880581, now seen corresponding path program 1 times [2018-01-24 23:07:52,256 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:07:52,257 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:52,257 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:07:52,257 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:07:52,257 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:07:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:07:52,274 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:07:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 23:07:52,329 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:07:52,329 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:07:52,329 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:07:52,329 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:07:52,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:07:52,330 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:07:52,330 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 4 states. [2018-01-24 23:07:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:07:52,370 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2018-01-24 23:07:52,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:07:52,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-01-24 23:07:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:07:52,371 INFO L225 Difference]: With dead ends: 61 [2018-01-24 23:07:52,371 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 23:07:52,371 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:07:52,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 23:07:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 23:07:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 23:07:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 23:07:52,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-01-24 23:07:52,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:07:52,372 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 23:07:52,372 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:07:52,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 23:07:52,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 23:07:52,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 23:07:52,979 WARN L146 SmtUtils]: Spent 480ms on a formula simplification. DAG size of input: 56 DAG size of output 47 [2018-01-24 23:07:52,993 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 565) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point test_funErr6RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point test_funErr12RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point L553'(line 553) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point L546(line 546) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point L544(lines 544 556) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point test_funErr5RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point test_funErr7RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,994 INFO L401 ceAbstractionStarter]: For program point test_funErr11RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point L546'(line 546) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point test_funErr8RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point test_funEXIT(lines 540 557) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point test_funErr3RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point L551'''(lines 551 554) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L404 ceAbstractionStarter]: At program point test_funENTRY(lines 540 557) the Hoare annotation is: true [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point L551''''(lines 551 554) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point test_funErr0RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point L544'''(lines 544 556) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point L551'(line 551) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point test_funErr1RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point test_funErr2RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,995 INFO L401 ceAbstractionStarter]: For program point L553''(line 553) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point L548'(line 548) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point test_funErr10RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point L552(line 552) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point L551(lines 551 554) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point L552'(line 552) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point L553'''(line 553) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point test_funErr9RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,996 INFO L401 ceAbstractionStarter]: For program point test_funErr4RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L397 ceAbstractionStarter]: At program point L544''(lines 544 556) the Hoare annotation is: (let ((.cse0 (not (= (select |#valid| |test_fun_#in~a.base|) 1))) (.cse1 (not (= 0 |test_fun_#in~a.offset|))) (.cse2 (not (exists ((v_main_~array_size~7_BEFORE_CALL_4 Int)) (and (<= |test_fun_#in~N| v_main_~array_size~7_BEFORE_CALL_4) (= (* 4 v_main_~array_size~7_BEFORE_CALL_4) (select |#length| |test_fun_#in~a.base|)))))) (.cse3 (< (select |#length| |test_fun_#in~a.base|) 4))) (and (or .cse0 .cse1 (<= test_fun_~N 1) (< 1 |test_fun_#in~N|) .cse2 .cse3) (let ((.cse4 (= test_fun_~a.offset 0)) (.cse5 (= 1 (select |#valid| test_fun_~a.base))) (.cse6 (exists ((v_main_~array_size~7_BEFORE_CALL_4 Int)) (and (= (* 4 v_main_~array_size~7_BEFORE_CALL_4) (select |#length| test_fun_~a.base)) (<= test_fun_~N v_main_~array_size~7_BEFORE_CALL_4))))) (or .cse0 .cse1 .cse2 (and (<= 4 (select |#length| test_fun_~a.base)) .cse4 .cse5 (<= |test_fun_#in~N| test_fun_~N) .cse6 (<= 0 test_fun_~i~2)) .cse3 (and .cse4 .cse5 .cse6 (<= 1 test_fun_~i~2)))))) [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point test_funErr13RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 565) the Hoare annotation is: true [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 565) the Hoare annotation is: true [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 565) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point L560(lines 560 562) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L397 ceAbstractionStarter]: At program point L564(line 564) the Hoare annotation is: (let ((.cse0 (* 4 main_~array_size~7))) (and (= 0 |main_#t~malloc9.offset|) (= .cse0 (select |#length| main_~numbers~7.base)) (= 0 main_~numbers~7.offset) (= .cse0 (select |#length| |main_#t~malloc9.base|)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (<= 1 main_~array_size~7) (= (store |#valid| |main_#t~malloc9.base| 0) |old(#valid)|) (= 1 (select |#valid| main_~numbers~7.base)))) [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point L563'(line 563) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point L564'(line 564) no Hoare annotation was computed. [2018-01-24 23:07:52,997 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 558 565) no Hoare annotation was computed. [2018-01-24 23:07:52,998 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 558 565) no Hoare annotation was computed. [2018-01-24 23:07:52,998 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 558 565) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:07:52,998 INFO L401 ceAbstractionStarter]: For program point L560''(lines 560 562) no Hoare annotation was computed. [2018-01-24 23:07:52,998 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 558 565) no Hoare annotation was computed. [2018-01-24 23:07:53,003 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,004 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,005 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,005 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,005 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,005 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,005 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,006 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,007 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,007 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,008 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,008 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,008 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,008 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,008 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,013 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,013 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,013 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,013 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,014 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,014 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,014 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,015 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,015 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,015 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,015 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,015 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,016 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,016 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,016 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 11:07:53 BoogieIcfgContainer [2018-01-24 23:07:53,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 23:07:53,020 INFO L168 Benchmark]: Toolchain (without parser) took 16355.19 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 976.7 MB). Free memory was 265.2 MB in the beginning and 435.9 MB in the end (delta: -170.7 MB). Peak memory consumption was 806.1 MB. Max. memory is 5.3 GB. [2018-01-24 23:07:53,020 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 306.2 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 23:07:53,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.91 ms. Allocated memory is still 306.2 MB. Free memory was 265.2 MB in the beginning and 255.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-24 23:07:53,021 INFO L168 Benchmark]: Boogie Preprocessor took 45.38 ms. Allocated memory is still 306.2 MB. Free memory was 255.2 MB in the beginning and 253.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 23:07:53,021 INFO L168 Benchmark]: RCFGBuilder took 331.13 ms. Allocated memory is still 306.2 MB. Free memory was 253.2 MB in the beginning and 234.6 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-01-24 23:07:53,021 INFO L168 Benchmark]: TraceAbstraction took 15705.48 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 976.7 MB). Free memory was 234.6 MB in the beginning and 435.9 MB in the end (delta: -201.2 MB). Peak memory consumption was 775.5 MB. Max. memory is 5.3 GB. [2018-01-24 23:07:53,023 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 306.2 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 260.91 ms. Allocated memory is still 306.2 MB. Free memory was 265.2 MB in the beginning and 255.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 45.38 ms. Allocated memory is still 306.2 MB. Free memory was 255.2 MB in the beginning and 253.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 331.13 ms. Allocated memory is still 306.2 MB. Free memory was 253.2 MB in the beginning and 234.6 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 15705.48 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 976.7 MB). Free memory was 234.6 MB in the beginning and 435.9 MB in the end (delta: -201.2 MB). Peak memory consumption was 775.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 20 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 174 LocStat_NO_SUPPORTING_DISEQUALITIES : 17 LocStat_NO_DISJUNCTIONS : -40 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 27 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 45 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 28 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 10.446463 RENAME_VARIABLES(MILLISECONDS) : 2.975781 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 10.365813 PROJECTAWAY(MILLISECONDS) : 844.190987 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.097918 DISJOIN(MILLISECONDS) : 0.431983 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 3.058354 ADD_EQUALITY(MILLISECONDS) : 0.051786 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.043447 #CONJOIN_DISJUNCTIVE : 56 #RENAME_VARIABLES : 92 #UNFREEZE : 0 #CONJOIN : 88 #PROJECTAWAY : 75 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 11 #RENAME_VARIABLES_DISJUNCTIVE : 89 #ADD_EQUALITY : 46 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 1 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 20 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 166 LocStat_NO_SUPPORTING_DISEQUALITIES : 17 LocStat_NO_DISJUNCTIONS : -40 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 27 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 46 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 28 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 14.673135 RENAME_VARIABLES(MILLISECONDS) : 4.296821 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 14.578379 PROJECTAWAY(MILLISECONDS) : 975.496139 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.099794 DISJOIN(MILLISECONDS) : 0.430924 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 4.352727 ADD_EQUALITY(MILLISECONDS) : 0.064972 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.035931 #CONJOIN_DISJUNCTIVE : 56 #RENAME_VARIABLES : 92 #UNFREEZE : 0 #CONJOIN : 88 #PROJECTAWAY : 75 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 11 #RENAME_VARIABLES_DISJUNCTIVE : 89 #ADD_EQUALITY : 47 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 1 * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 544]: Loop Invariant [2018-01-24 23:07:53,032 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,032 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,032 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,032 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,033 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,033 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,033 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,034 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,034 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,034 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,034 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,034 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,035 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,035 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,035 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,038 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,039 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,039 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,039 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,039 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,040 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,040 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,040 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~7_BEFORE_CALL_4,QUANTIFIED] [2018-01-24 23:07:53,040 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,041 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,041 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,041 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,041 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,041 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:07:53,042 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((!(\valid[a] == 1) || !(0 == a)) || N <= 1) || 1 < \old(N)) || !(\exists v_main_~array_size~7_BEFORE_CALL_4 : int :: \old(N) <= v_main_~array_size~7_BEFORE_CALL_4 && 4 * v_main_~array_size~7_BEFORE_CALL_4 == unknown-#length-unknown[a])) || unknown-#length-unknown[a] < 4) && (((((!(\valid[a] == 1) || !(0 == a)) || !(\exists v_main_~array_size~7_BEFORE_CALL_4 : int :: \old(N) <= v_main_~array_size~7_BEFORE_CALL_4 && 4 * v_main_~array_size~7_BEFORE_CALL_4 == unknown-#length-unknown[a])) || (((((4 <= unknown-#length-unknown[a] && a == 0) && 1 == \valid[a]) && \old(N) <= N) && (\exists v_main_~array_size~7_BEFORE_CALL_4 : int :: 4 * v_main_~array_size~7_BEFORE_CALL_4 == unknown-#length-unknown[a] && N <= v_main_~array_size~7_BEFORE_CALL_4)) && 0 <= i)) || unknown-#length-unknown[a] < 4) || (((a == 0 && 1 == \valid[a]) && (\exists v_main_~array_size~7_BEFORE_CALL_4 : int :: 4 * v_main_~array_size~7_BEFORE_CALL_4 == unknown-#length-unknown[a] && N <= v_main_~array_size~7_BEFORE_CALL_4)) && 1 <= i)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 51 locations, 15 error locations. SAFE Result, 15.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 181 SDtfs, 366 SDslu, 474 SDs, 0 SdLazy, 448 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.2s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 173 HoareAnnotationTreeSize, 9 FomulaSimplifications, 44 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 342 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 245 ConstructedInterpolants, 50 QuantifiedInterpolants, 51166 SizeOfPredicates, 19 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 15/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_23-07-53-047.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_23-07-53-047.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_23-07-53-047.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-24_23-07-53-047.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-24_23-07-53-047.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_23-07-53-047.csv Received shutdown request...