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_RubberTaipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/memsafety/test-0019_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 13:04:29,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:04:29,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:04:29,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:04:29,530 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:04:29,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:04:29,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:04:29,534 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:04:29,536 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:04:29,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:04:29,538 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:04:29,538 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:04:29,539 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:04:29,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:04:29,541 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:04:29,544 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:04:29,546 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:04:29,548 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:04:29,549 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:04:29,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:04:29,553 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 13:04:29,553 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 13:04:29,554 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 13:04:29,554 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 13:04:29,555 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 13:04:29,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 13:04:29,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 13:04:29,557 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 13:04:29,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 13:04:29,558 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 13:04:29,558 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 13:04:29,559 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf [2018-01-24 13:04:29,568 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:04:29,569 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:04:29,569 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:04:29,570 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:04:29,570 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:04:29,570 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:04:29,570 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:04:29,571 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:04:29,571 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:04:29,571 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:04:29,571 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:04:29,571 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:04:29,572 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:04:29,572 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:04:29,572 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:04:29,572 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:04:29,572 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:04:29,573 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:04:29,573 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:04:29,573 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:04:29,573 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:04:29,573 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:04:29,573 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:04:29,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:04:29,574 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:04:29,574 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:04:29,574 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:04:29,574 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:04:29,575 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-01-24 13:04:29,575 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:04:29,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:04:29,575 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:04:29,576 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:04:29,576 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:04:29,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:04:29,625 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:04:29,629 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:04:29,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:04:29,631 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:04:29,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0019_true-valid-memsafety_true-termination.i [2018-01-24 13:04:29,796 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:04:29,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:04:29,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:04:29,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:04:29,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:04:29,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:29,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb77e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29, skipping insertion in model container [2018-01-24 13:04:29,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:29,823 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:04:29,858 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:04:29,961 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:04:29,976 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:04:29,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29 WrapperNode [2018-01-24 13:04:29,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:04:29,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:04:29,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:04:29,982 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:04:29,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:29,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:30,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:30,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:30,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:30,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:30,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (1/1) ... [2018-01-24 13:04:30,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:04:30,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:04:30,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:04:30,013 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:04:30,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (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 13:04:30,058 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:04:30,058 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:04:30,059 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-01-24 13:04:30,059 INFO L136 BoogieDeclarations]: Found implementation of procedure free_data [2018-01-24 13:04:30,059 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:04:30,059 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 13:04:30,059 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 13:04:30,059 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:04:30,059 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:04:30,060 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:04:30,060 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 13:04:30,060 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 13:04:30,060 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_data [2018-01-24 13:04:30,060 INFO L128 BoogieDeclarations]: Found specification of procedure free_data [2018-01-24 13:04:30,060 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:04:30,061 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:04:30,061 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:04:30,243 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:04:30,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:04:30 BoogieIcfgContainer [2018-01-24 13:04:30,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:04:30,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 13:04:30,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 13:04:30,247 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 13:04:30,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 01:04:29" (1/3) ... [2018-01-24 13:04:30,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574770da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:04:30, skipping insertion in model container [2018-01-24 13:04:30,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:04:29" (2/3) ... [2018-01-24 13:04:30,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574770da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:04:30, skipping insertion in model container [2018-01-24 13:04:30,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:04:30" (3/3) ... [2018-01-24 13:04:30,251 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0019_true-valid-memsafety_true-termination.i [2018-01-24 13:04:30,260 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 13:04:30,268 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-24 13:04:30,316 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 13:04:30,316 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 13:04:30,317 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 13:04:30,317 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 13:04:30,317 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 13:04:30,317 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 13:04:30,317 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 13:04:30,317 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 13:04:30,318 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 13:04:30,339 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-01-24 13:04:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-24 13:04:30,345 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:30,345 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:04:30,346 INFO L371 AbstractCegarLoop]: === Iteration 1 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:30,349 INFO L82 PathProgramCache]: Analyzing trace with hash 345440703, now seen corresponding path program 1 times [2018-01-24 13:04:30,352 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:30,392 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:30,392 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:30,392 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:30,393 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:30,445 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:30,608 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 13:04:30,610 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:30,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 13:04:30,610 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:30,612 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 13:04:30,621 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 13:04:30,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 13:04:30,624 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2018-01-24 13:04:30,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:30,828 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-01-24 13:04:30,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 13:04:30,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-01-24 13:04:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:30,838 INFO L225 Difference]: With dead ends: 43 [2018-01-24 13:04:30,839 INFO L226 Difference]: Without dead ends: 36 [2018-01-24 13:04:30,841 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 13:04:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-24 13:04:30,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-24 13:04:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-24 13:04:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-01-24 13:04:30,870 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 10 [2018-01-24 13:04:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:30,870 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-01-24 13:04:30,870 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 13:04:30,870 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-01-24 13:04:30,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-24 13:04:30,871 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:30,871 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:04:30,871 INFO L371 AbstractCegarLoop]: === Iteration 2 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:30,871 INFO L82 PathProgramCache]: Analyzing trace with hash 345440704, now seen corresponding path program 1 times [2018-01-24 13:04:30,871 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:30,872 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:30,872 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:30,873 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:30,873 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:30,895 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:31,028 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 13:04:31,029 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:31,060 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 13:04:31,060 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:31,062 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 13:04:31,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 13:04:31,062 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:04:31,062 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 6 states. [2018-01-24 13:04:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:31,185 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-01-24 13:04:31,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 13:04:31,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-01-24 13:04:31,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:31,187 INFO L225 Difference]: With dead ends: 36 [2018-01-24 13:04:31,187 INFO L226 Difference]: Without dead ends: 32 [2018-01-24 13:04:31,188 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-24 13:04:31,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-01-24 13:04:31,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-01-24 13:04:31,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-01-24 13:04:31,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-01-24 13:04:31,194 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 10 [2018-01-24 13:04:31,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:31,195 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-01-24 13:04:31,195 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 13:04:31,195 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-01-24 13:04:31,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 13:04:31,196 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:31,196 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:04:31,196 INFO L371 AbstractCegarLoop]: === Iteration 3 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:31,196 INFO L82 PathProgramCache]: Analyzing trace with hash 569818482, now seen corresponding path program 1 times [2018-01-24 13:04:31,196 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:31,197 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:31,198 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:31,198 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:31,198 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:31,220 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:31,341 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 13:04:31,341 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:31,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 13:04:31,341 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:31,342 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 13:04:31,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 13:04:31,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-24 13:04:31,342 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 10 states. [2018-01-24 13:04:31,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:31,446 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-01-24 13:04:31,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 13:04:31,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2018-01-24 13:04:31,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:31,448 INFO L225 Difference]: With dead ends: 32 [2018-01-24 13:04:31,448 INFO L226 Difference]: Without dead ends: 31 [2018-01-24 13:04:31,449 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-01-24 13:04:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-01-24 13:04:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-01-24 13:04:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-24 13:04:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-01-24 13:04:31,455 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 20 [2018-01-24 13:04:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:31,455 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-01-24 13:04:31,455 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 13:04:31,455 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-01-24 13:04:31,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 13:04:31,456 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:31,456 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:04:31,456 INFO L371 AbstractCegarLoop]: === Iteration 4 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:31,457 INFO L82 PathProgramCache]: Analyzing trace with hash 569818483, now seen corresponding path program 1 times [2018-01-24 13:04:31,457 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:31,458 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:31,458 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:31,458 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:31,458 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:31,478 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:31,652 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 13:04:31,652 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:31,652 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 13:04:31,652 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:31,653 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 13:04:31,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 13:04:31,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-24 13:04:31,654 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 10 states. [2018-01-24 13:04:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:31,769 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-01-24 13:04:31,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 13:04:31,770 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2018-01-24 13:04:31,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:31,771 INFO L225 Difference]: With dead ends: 34 [2018-01-24 13:04:31,771 INFO L226 Difference]: Without dead ends: 33 [2018-01-24 13:04:31,772 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-01-24 13:04:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-01-24 13:04:31,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2018-01-24 13:04:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-01-24 13:04:31,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-01-24 13:04:31,778 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 20 [2018-01-24 13:04:31,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:31,779 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-01-24 13:04:31,779 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 13:04:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-01-24 13:04:31,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-24 13:04:31,780 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:31,780 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:04:31,780 INFO L371 AbstractCegarLoop]: === Iteration 5 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:31,780 INFO L82 PathProgramCache]: Analyzing trace with hash 484503765, now seen corresponding path program 1 times [2018-01-24 13:04:31,780 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:31,781 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:31,781 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:31,781 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:31,781 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:31,801 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:31,961 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 13:04:31,961 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:31,961 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 13:04:31,961 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:31,962 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 13:04:31,962 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 13:04:31,962 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-01-24 13:04:31,962 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 10 states. [2018-01-24 13:04:32,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:32,064 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-01-24 13:04:32,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 13:04:32,065 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-01-24 13:04:32,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:32,065 INFO L225 Difference]: With dead ends: 30 [2018-01-24 13:04:32,065 INFO L226 Difference]: Without dead ends: 29 [2018-01-24 13:04:32,066 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-01-24 13:04:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-01-24 13:04:32,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-01-24 13:04:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-01-24 13:04:32,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-01-24 13:04:32,069 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 21 [2018-01-24 13:04:32,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:32,069 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-01-24 13:04:32,069 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 13:04:32,069 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-01-24 13:04:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-24 13:04:32,070 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:32,070 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:04:32,070 INFO L371 AbstractCegarLoop]: === Iteration 6 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:32,070 INFO L82 PathProgramCache]: Analyzing trace with hash 484503766, now seen corresponding path program 1 times [2018-01-24 13:04:32,071 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:32,071 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:32,071 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:32,072 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:32,072 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:32,090 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:32,507 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 13:04:32,508 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:32,508 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-01-24 13:04:32,508 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:32,508 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-24 13:04:32,509 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-24 13:04:32,509 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-01-24 13:04:32,509 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 15 states. [2018-01-24 13:04:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:32,864 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-01-24 13:04:32,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-24 13:04:32,864 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 21 [2018-01-24 13:04:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:32,865 INFO L225 Difference]: With dead ends: 32 [2018-01-24 13:04:32,865 INFO L226 Difference]: Without dead ends: 31 [2018-01-24 13:04:32,865 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2018-01-24 13:04:32,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-01-24 13:04:32,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2018-01-24 13:04:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-24 13:04:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-01-24 13:04:32,868 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 21 [2018-01-24 13:04:32,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:32,869 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-01-24 13:04:32,869 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-24 13:04:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-01-24 13:04:32,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 13:04:32,870 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:32,870 INFO L322 BasicCegarLoop]: trace histogram [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 13:04:32,870 INFO L371 AbstractCegarLoop]: === Iteration 7 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:32,870 INFO L82 PathProgramCache]: Analyzing trace with hash -997094437, now seen corresponding path program 1 times [2018-01-24 13:04:32,870 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:32,871 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:32,871 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:32,871 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:32,871 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:32,886 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:33,093 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 13:04:33,093 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:33,094 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-24 13:04:33,094 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:33,094 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-24 13:04:33,094 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-24 13:04:33,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-01-24 13:04:33,095 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 13 states. [2018-01-24 13:04:33,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:33,273 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-01-24 13:04:33,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 13:04:33,274 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-01-24 13:04:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:33,274 INFO L225 Difference]: With dead ends: 35 [2018-01-24 13:04:33,274 INFO L226 Difference]: Without dead ends: 28 [2018-01-24 13:04:33,275 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2018-01-24 13:04:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-01-24 13:04:33,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-01-24 13:04:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-24 13:04:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-01-24 13:04:33,278 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 25 [2018-01-24 13:04:33,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:33,278 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-01-24 13:04:33,278 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-24 13:04:33,278 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-01-24 13:04:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 13:04:33,278 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:04:33,279 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1] [2018-01-24 13:04:33,279 INFO L371 AbstractCegarLoop]: === Iteration 8 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr2RequiresViolation, free_dataErr0RequiresViolation]=== [2018-01-24 13:04:33,279 INFO L82 PathProgramCache]: Analyzing trace with hash -502821665, now seen corresponding path program 1 times [2018-01-24 13:04:33,279 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:04:33,279 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:33,280 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:04:33,280 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:04:33,280 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:04:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:04:33,296 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:04:33,791 WARN L146 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 51 DAG size of output 39 [2018-01-24 13:04:34,087 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 13:04:34,087 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:04:34,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-24 13:04:34,087 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:04:34,088 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-24 13:04:34,088 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-24 13:04:34,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2018-01-24 13:04:34,088 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 17 states. [2018-01-24 13:04:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:04:34,864 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-01-24 13:04:34,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-01-24 13:04:34,864 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 27 [2018-01-24 13:04:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:04:34,865 INFO L225 Difference]: With dead ends: 28 [2018-01-24 13:04:34,865 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 13:04:34,865 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2018-01-24 13:04:34,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 13:04:34,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 13:04:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 13:04:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 13:04:34,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-01-24 13:04:34,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:04:34,866 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 13:04:34,866 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-24 13:04:34,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 13:04:34,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 13:04:34,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 13:04:35,075 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,076 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 642) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 13:04:35,076 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,076 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 642) the Hoare annotation is: true [2018-01-24 13:04:35,076 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,076 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 642) the Hoare annotation is: true [2018-01-24 13:04:35,076 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,076 INFO L401 ceAbstractionStarter]: For program point alloc_dataErr1RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,076 INFO L401 ceAbstractionStarter]: For program point alloc_dataEXIT(lines 623 627) no Hoare annotation was computed. [2018-01-24 13:04:35,076 INFO L401 ceAbstractionStarter]: For program point L625'(line 625) no Hoare annotation was computed. [2018-01-24 13:04:35,076 INFO L401 ceAbstractionStarter]: For program point alloc_dataFINAL(lines 623 627) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L397 ceAbstractionStarter]: At program point alloc_dataENTRY(lines 623 627) the Hoare annotation is: (or (not (= 0 |alloc_data_#in~pdata.offset|)) (not (= (select |old(#valid)| |alloc_data_#in~pdata.base|) 1)) (and (= |#valid| |old(#valid)|) (= 8 (select |#length| |alloc_data_#in~pdata.base|))) (not (= 8 (select |old(#length)| |alloc_data_#in~pdata.base|)))) [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point L625''(line 625) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point alloc_dataErr0RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point L626(line 626) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point L625(line 625) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point alloc_dataErr3RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point alloc_dataErr2RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point mainErr3RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point L640(line 640) no Hoare annotation was computed. [2018-01-24 13:04:35,077 INFO L401 ceAbstractionStarter]: For program point L640''(line 640) no Hoare annotation was computed. [2018-01-24 13:04:35,078 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 637 642) no Hoare annotation was computed. [2018-01-24 13:04:35,078 INFO L397 ceAbstractionStarter]: At program point L640'(line 640) the Hoare annotation is: (let ((.cse4 (store |#valid| |main_~#data~5.base| 0)) (.cse3 (select |#memory_$Pointer$.base| |main_~#data~5.base|)) (.cse1 (+ |main_~#data~5.offset| 4))) (let ((.cse2 (store .cse4 (select .cse3 .cse1) 0)) (.cse0 (select |#memory_$Pointer$.offset| |main_~#data~5.base|))) (and (= 1 (select |#valid| |main_#t~mem5.base|)) (= 0 (select .cse0 .cse1)) (= (store .cse2 |main_#t~mem4.base| 0) |old(#valid)|) (not (= |main_~#data~5.base| |main_#t~mem5.base|)) (not (= |main_~#data~5.base| |main_#t~mem4.base|)) (= 1 (select |#valid| |main_~#data~5.base|)) (= 1 (select |#valid| |main_#t~mem4.base|)) (= 0 |main_#t~mem4.offset|) (= (store .cse2 (select .cse3 |main_~#data~5.offset|) 0) |old(#valid)|) (= (store (store .cse4 |main_#t~mem5.base| 0) |main_#t~mem4.base| 0) |old(#valid)|) (= 8 (select |#length| |main_~#data~5.base|)) (not (= |main_#t~mem4.base| |main_#t~mem5.base|)) (not (= 0 |main_#t~mem4.base|)) (not (= 0 |main_#t~mem5.base|)) (= 0 (select .cse0 |main_~#data~5.offset|)) (= 0 |main_~#data~5.offset|) (= 0 |main_#t~mem5.offset|)))) [2018-01-24 13:04:35,078 INFO L401 ceAbstractionStarter]: For program point mainErr4EnsuresViolation(lines 637 642) no Hoare annotation was computed. [2018-01-24 13:04:35,078 INFO L397 ceAbstractionStarter]: At program point L638(line 638) the Hoare annotation is: (and (= 8 (select |#length| |main_~#data~5.base|)) (= (store |#valid| |main_~#data~5.base| 0) |old(#valid)|) (= 1 (select |#valid| |main_~#data~5.base|)) (= 0 |main_~#data~5.offset|)) [2018-01-24 13:04:35,078 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,078 INFO L401 ceAbstractionStarter]: For program point L638''(line 638) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 637 642) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 637 642) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point L638'(line 638) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point L639(line 639) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point mainErr2RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point free_dataErr1RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point free_dataErr0RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point L634'(line 634) no Hoare annotation was computed. [2018-01-24 13:04:35,079 INFO L397 ceAbstractionStarter]: At program point free_dataENTRY(lines 628 636) the Hoare annotation is: (or (= |#valid| |old(#valid)|) (= 0 |free_data_#in~data.lo.base|) (not (= (select |old(#valid)| |free_data_#in~data.hi.base|) 1)) (not (= |free_data_#in~data.hi.offset| 0)) (not (= 0 |free_data_#in~data.lo.offset|)) (not (= 1 (select |old(#valid)| |free_data_#in~data.lo.base|)))) [2018-01-24 13:04:35,079 INFO L401 ceAbstractionStarter]: For program point free_dataFINAL(lines 628 636) no Hoare annotation was computed. [2018-01-24 13:04:35,080 INFO L401 ceAbstractionStarter]: For program point L634(line 634) no Hoare annotation was computed. [2018-01-24 13:04:35,080 INFO L401 ceAbstractionStarter]: For program point L632(lines 632 633) no Hoare annotation was computed. [2018-01-24 13:04:35,080 INFO L401 ceAbstractionStarter]: For program point free_dataErr2RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,080 INFO L401 ceAbstractionStarter]: For program point free_dataErr3RequiresViolation(lines 1 642) no Hoare annotation was computed. [2018-01-24 13:04:35,080 INFO L401 ceAbstractionStarter]: For program point free_dataEXIT(lines 628 636) no Hoare annotation was computed. [2018-01-24 13:04:35,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 01:04:35 BoogieIcfgContainer [2018-01-24 13:04:35,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 13:04:35,084 INFO L168 Benchmark]: Toolchain (without parser) took 5287.44 ms. Allocated memory was 303.0 MB in the beginning and 539.5 MB in the end (delta: 236.5 MB). Free memory was 260.9 MB in the beginning and 390.8 MB in the end (delta: -129.9 MB). Peak memory consumption was 106.6 MB. Max. memory is 5.3 GB. [2018-01-24 13:04:35,085 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 303.0 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:04:35,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.87 ms. Allocated memory is still 303.0 MB. Free memory was 260.0 MB in the beginning and 249.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:04:35,086 INFO L168 Benchmark]: Boogie Preprocessor took 30.58 ms. Allocated memory is still 303.0 MB. Free memory was 249.9 MB in the beginning and 247.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:04:35,086 INFO L168 Benchmark]: RCFGBuilder took 230.80 ms. Allocated memory is still 303.0 MB. Free memory was 247.8 MB in the beginning and 230.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:04:35,086 INFO L168 Benchmark]: TraceAbstraction took 4838.52 ms. Allocated memory was 303.0 MB in the beginning and 539.5 MB in the end (delta: 236.5 MB). Free memory was 230.8 MB in the beginning and 390.8 MB in the end (delta: -160.0 MB). Peak memory consumption was 76.5 MB. Max. memory is 5.3 GB. [2018-01-24 13:04:35,088 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 303.0 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 179.87 ms. Allocated memory is still 303.0 MB. Free memory was 260.0 MB in the beginning and 249.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.58 ms. Allocated memory is still 303.0 MB. Free memory was 249.9 MB in the beginning and 247.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 230.80 ms. Allocated memory is still 303.0 MB. Free memory was 247.8 MB in the beginning and 230.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4838.52 ms. Allocated memory was 303.0 MB in the beginning and 539.5 MB in the end (delta: 236.5 MB). Free memory was 230.8 MB in the beginning and 390.8 MB in the end (delta: -160.0 MB). Peak memory consumption was 76.5 MB. Max. memory is 5.3 GB. * 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: 637]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 13 error locations. SAFE Result, 4.7s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 SDtfs, 150 SDslu, 679 SDs, 0 SdLazy, 926 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 199 HoareAnnotationTreeSize, 8 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 145 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 36431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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/test-0019_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_13-04-35-096.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_13-04-35-096.csv Received shutdown request...