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_preciseopt.epf -i ../../../trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:01:21,683 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:01:21,685 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:01:21,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:01:21,701 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:01:21,702 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:01:21,704 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:01:21,705 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:01:21,708 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:01:21,709 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:01:21,709 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:01:21,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:01:21,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:01:21,712 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:01:21,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:01:21,716 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:01:21,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:01:21,720 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:01:21,722 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:01:21,723 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:01:21,725 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 03:01:21,732 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_preciseopt.epf [2018-01-25 03:01:21,742 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:01:21,742 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:01:21,743 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:01:21,743 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:01:21,743 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:01:21,743 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:01:21,743 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:01:21,744 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:01:21,744 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:01:21,744 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:01:21,744 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:01:21,745 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:01:21,745 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:01:21,745 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:01:21,745 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:01:21,745 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:01:21,745 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:01:21,746 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:01:21,746 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:01:21,746 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:01:21,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:01:21,747 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:01:21,747 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:01:21,747 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:01:21,747 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:01:21,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:01:21,748 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:01:21,748 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:01:21,748 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:01:21,748 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:01:21,748 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:01:21,748 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:01:21,748 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:01:21,749 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:01:21,749 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:01:21,749 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:01:21,750 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:01:21,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:01:21,795 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:01:21,798 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:01:21,799 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:01:21,799 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:01:21,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-01-25 03:01:22,009 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:01:22,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:01:22,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:01:22,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:01:22,028 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:01:22,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:01:21" (1/1) ... [2018-01-25 03:01:22,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b064ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22, skipping insertion in model container [2018-01-25 03:01:22,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:01:21" (1/1) ... [2018-01-25 03:01:22,056 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:01:22,123 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:01:22,252 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:01:22,266 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:01:22,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22 WrapperNode [2018-01-25 03:01:22,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:01:22,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:01:22,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:01:22,276 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:01:22,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (1/1) ... [2018-01-25 03:01:22,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (1/1) ... [2018-01-25 03:01:22,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (1/1) ... [2018-01-25 03:01:22,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (1/1) ... [2018-01-25 03:01:22,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (1/1) ... [2018-01-25 03:01:22,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (1/1) ... [2018-01-25 03:01:22,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (1/1) ... [2018-01-25 03:01:22,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:01:22,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:01:22,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:01:22,313 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:01:22,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (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 [2018-01-25 03:01:22,367 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:01:22,368 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:01:22,368 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:01:22,368 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 03:01:22,368 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 03:01:22,368 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:01:22,369 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:01:22,369 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:01:22,369 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:01:22,369 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:01:22,369 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:01:22,369 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:01:22,370 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:01:22,533 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:01:22,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:01:22 BoogieIcfgContainer [2018-01-25 03:01:22,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:01:22,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:01:22,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:01:22,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:01:22,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:01:21" (1/3) ... [2018-01-25 03:01:22,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f70267f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:01:22, skipping insertion in model container [2018-01-25 03:01:22,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:01:22" (2/3) ... [2018-01-25 03:01:22,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f70267f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:01:22, skipping insertion in model container [2018-01-25 03:01:22,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:01:22" (3/3) ... [2018-01-25 03:01:22,540 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0158_true-valid-memsafety_true-termination.i [2018-01-25 03:01:22,547 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:01:22,553 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-25 03:01:22,626 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:01:22,626 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:01:22,627 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:01:22,627 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:01:22,627 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:01:22,627 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:01:22,627 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:01:22,627 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:01:22,628 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:01:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-01-25 03:01:22,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:01:22,662 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:01:22,663 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:01:22,664 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-25 03:01:22,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784654, now seen corresponding path program 1 times [2018-01-25 03:01:22,674 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:01:22,739 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:22,739 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:01:22,739 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:22,739 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:01:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:01:22,812 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:01:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:01:22,955 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:01:22,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 03:01:22,956 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:01:22,960 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 03:01:22,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 03:01:22,977 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:01:22,981 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2018-01-25 03:01:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:01:23,063 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-01-25 03:01:23,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 03:01:23,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-01-25 03:01:23,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:01:23,149 INFO L225 Difference]: With dead ends: 27 [2018-01-25 03:01:23,149 INFO L226 Difference]: Without dead ends: 21 [2018-01-25 03:01:23,152 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:01:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-01-25 03:01:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-01-25 03:01:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-01-25 03:01:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-01-25 03:01:23,182 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-01-25 03:01:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:01:23,182 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-01-25 03:01:23,182 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 03:01:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-01-25 03:01:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:01:23,183 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:01:23,183 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:01:23,183 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-25 03:01:23,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784655, now seen corresponding path program 1 times [2018-01-25 03:01:23,183 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:01:23,184 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:23,184 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:01:23,185 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:23,185 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:01:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:01:23,206 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:01:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:01:23,319 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:01:23,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:01:23,319 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:01:23,321 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:01:23,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:01:23,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:01:23,322 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 4 states. [2018-01-25 03:01:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:01:23,440 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-01-25 03:01:23,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:01:23,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:01:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:01:23,441 INFO L225 Difference]: With dead ends: 21 [2018-01-25 03:01:23,442 INFO L226 Difference]: Without dead ends: 18 [2018-01-25 03:01:23,443 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:01:23,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-25 03:01:23,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-25 03:01:23,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-25 03:01:23,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-01-25 03:01:23,447 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-01-25 03:01:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:01:23,448 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-01-25 03:01:23,448 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:01:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-01-25 03:01:23,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-25 03:01:23,448 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:01:23,448 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:01:23,449 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-25 03:01:23,449 INFO L82 PathProgramCache]: Analyzing trace with hash 514218689, now seen corresponding path program 1 times [2018-01-25 03:01:23,449 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:01:23,450 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:23,450 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:01:23,450 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:23,451 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:01:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:01:23,470 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:01:23,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:01:23,553 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:01:23,553 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:01:23,553 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:01:23,554 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:01:23,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:01:23,554 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:01:23,555 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 5 states. [2018-01-25 03:01:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:01:23,673 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-01-25 03:01:23,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:01:23,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-25 03:01:23,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:01:23,676 INFO L225 Difference]: With dead ends: 18 [2018-01-25 03:01:23,676 INFO L226 Difference]: Without dead ends: 17 [2018-01-25 03:01:23,676 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:01:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-01-25 03:01:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-01-25 03:01:23,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-01-25 03:01:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-01-25 03:01:23,680 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 11 [2018-01-25 03:01:23,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:01:23,680 INFO L432 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-01-25 03:01:23,680 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:01:23,680 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-01-25 03:01:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-25 03:01:23,681 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:01:23,681 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:01:23,681 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-25 03:01:23,681 INFO L82 PathProgramCache]: Analyzing trace with hash 514218690, now seen corresponding path program 1 times [2018-01-25 03:01:23,682 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:01:23,683 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:23,683 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:01:23,683 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:23,683 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:01:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:01:23,700 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:01:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:01:23,842 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:01:23,842 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:01:23,843 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:01:23,843 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:01:23,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:01:23,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:01:23,844 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 5 states. [2018-01-25 03:01:23,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:01:23,996 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-01-25 03:01:23,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:01:23,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-25 03:01:23,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:01:24,000 INFO L225 Difference]: With dead ends: 17 [2018-01-25 03:01:24,000 INFO L226 Difference]: Without dead ends: 16 [2018-01-25 03:01:24,001 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:01:24,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-01-25 03:01:24,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-01-25 03:01:24,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-01-25 03:01:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2018-01-25 03:01:24,004 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2018-01-25 03:01:24,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:01:24,004 INFO L432 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2018-01-25 03:01:24,004 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:01:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2018-01-25 03:01:24,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 03:01:24,008 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:01:24,008 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:01:24,008 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-25 03:01:24,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1518594947, now seen corresponding path program 1 times [2018-01-25 03:01:24,009 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:01:24,010 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:24,010 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:01:24,010 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:01:24,010 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:01:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:01:24,049 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:01:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:01:24,307 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:01:24,308 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 03:01:24,308 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:01:24,308 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 03:01:24,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 03:01:24,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:01:24,309 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 8 states. [2018-01-25 03:01:24,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:01:24,506 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-01-25 03:01:24,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 03:01:24,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-01-25 03:01:24,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:01:24,507 INFO L225 Difference]: With dead ends: 16 [2018-01-25 03:01:24,507 INFO L226 Difference]: Without dead ends: 0 [2018-01-25 03:01:24,508 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-01-25 03:01:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-25 03:01:24,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-25 03:01:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-25 03:01:24,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-25 03:01:24,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-25 03:01:24,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:01:24,509 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-25 03:01:24,509 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 03:01:24,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-25 03:01:24,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-25 03:01:24,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-25 03:01:24,528 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,528 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 633) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 633) the Hoare annotation is: true [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 633) the Hoare annotation is: true [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point mainErr3RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point mainErr8EnsuresViolation(lines 619 633) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point mainErr6RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,529 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 619 633) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point mainErr4RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point L621''(lines 621 628) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point L621(lines 621 628) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point L631(line 631) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 619 633) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 619 633) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point mainErr7RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point L629(line 629) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point mainErr2RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,530 INFO L401 ceAbstractionStarter]: For program point mainErr5RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-25 03:01:24,531 INFO L401 ceAbstractionStarter]: For program point L621'(lines 621 628) no Hoare annotation was computed. [2018-01-25 03:01:24,531 INFO L401 ceAbstractionStarter]: For program point L631'(line 631) no Hoare annotation was computed. [2018-01-25 03:01:24,531 INFO L401 ceAbstractionStarter]: For program point L629'(line 629) no Hoare annotation was computed. [2018-01-25 03:01:24,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 03:01:24 BoogieIcfgContainer [2018-01-25 03:01:24,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 03:01:24,535 INFO L168 Benchmark]: Toolchain (without parser) took 2525.51 ms. Allocated memory was 306.2 MB in the beginning and 468.2 MB in the end (delta: 162.0 MB). Free memory was 266.0 MB in the beginning and 340.1 MB in the end (delta: -74.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 5.3 GB. [2018-01-25 03:01:24,536 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 03:01:24,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.87 ms. Allocated memory is still 306.2 MB. Free memory was 266.0 MB in the beginning and 255.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-25 03:01:24,537 INFO L168 Benchmark]: Boogie Preprocessor took 36.51 ms. Allocated memory is still 306.2 MB. Free memory was 254.9 MB in the beginning and 253.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-25 03:01:24,537 INFO L168 Benchmark]: RCFGBuilder took 221.07 ms. Allocated memory is still 306.2 MB. Free memory was 253.9 MB in the beginning and 239.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-25 03:01:24,537 INFO L168 Benchmark]: TraceAbstraction took 2000.15 ms. Allocated memory was 306.2 MB in the beginning and 468.2 MB in the end (delta: 162.0 MB). Free memory was 239.9 MB in the beginning and 340.1 MB in the end (delta: -100.2 MB). Peak memory consumption was 61.8 MB. Max. memory is 5.3 GB. [2018-01-25 03:01:24,539 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 255.87 ms. Allocated memory is still 306.2 MB. Free memory was 266.0 MB in the beginning and 255.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.51 ms. Allocated memory is still 306.2 MB. Free memory was 254.9 MB in the beginning and 253.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 221.07 ms. Allocated memory is still 306.2 MB. Free memory was 253.9 MB in the beginning and 239.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2000.15 ms. Allocated memory was 306.2 MB in the beginning and 468.2 MB in the end (delta: 162.0 MB). Free memory was 239.9 MB in the beginning and 340.1 MB in the end (delta: -100.2 MB). Peak memory consumption was 61.8 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]: free always succeeds For all program executions holds that free 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]: free always succeeds For all program executions holds that free 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: 619]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 9 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 38 SDslu, 70 SDs, 0 SdLazy, 118 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 3593 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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-0158_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_03-01-24-549.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_03-01-24-549.csv Received shutdown request...