java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 23:36:23,479 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 23:36:23,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 23:36:23,495 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 23:36:23,496 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 23:36:23,497 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 23:36:23,498 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 23:36:23,499 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 23:36:23,501 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 23:36:23,502 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 23:36:23,503 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 23:36:23,503 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 23:36:23,504 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 23:36:23,505 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 23:36:23,506 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 23:36:23,508 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 23:36:23,511 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 23:36:23,513 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 23:36:23,514 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 23:36:23,515 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 23:36:23,517 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 23:36:23,522 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 23:36:23,523 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 23:36:23,523 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-24 23:36:23,533 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 23:36:23,533 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 23:36:23,534 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 23:36:23,534 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 23:36:23,534 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 23:36:23,534 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 23:36:23,534 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 23:36:23,534 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 23:36:23,535 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 23:36:23,535 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 23:36:23,535 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 23:36:23,535 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 23:36:23,535 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 23:36:23,535 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 23:36:23,536 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 23:36:23,536 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 23:36:23,536 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 23:36:23,536 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 23:36:23,536 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 23:36:23,536 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 23:36:23,536 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 23:36:23,536 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 23:36:23,537 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 23:36:23,537 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 23:36:23,537 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:36:23,537 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 23:36:23,537 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 23:36:23,538 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 23:36:23,538 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 23:36:23,538 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 23:36:23,538 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 23:36:23,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 23:36:23,538 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 23:36:23,538 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 23:36:23,539 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 23:36:23,539 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 23:36:23,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 23:36:23,581 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 23:36:23,585 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 23:36:23,586 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 23:36:23,586 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 23:36:23,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-01-24 23:36:23,734 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 23:36:23,739 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 23:36:23,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 23:36:23,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 23:36:23,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 23:36:23,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572050e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23, skipping insertion in model container [2018-01-24 23:36:23,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,763 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:36:23,800 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:36:23,913 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:36:23,927 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:36:23,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23 WrapperNode [2018-01-24 23:36:23,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 23:36:23,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 23:36:23,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 23:36:23,937 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 23:36:23,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... [2018-01-24 23:36:23,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 23:36:23,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 23:36:23,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 23:36:23,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 23:36:23,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:36:24,020 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 23:36:24,020 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 23:36:24,020 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 23:36:24,020 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 23:36:24,020 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 23:36:24,021 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 23:36:24,021 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 23:36:24,021 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 23:36:24,021 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 23:36:24,021 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 23:36:24,021 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 23:36:24,022 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 23:36:24,022 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 23:36:24,162 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 23:36:24,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:36:24 BoogieIcfgContainer [2018-01-24 23:36:24,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 23:36:24,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 23:36:24,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 23:36:24,165 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 23:36:24,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:36:23" (1/3) ... [2018-01-24 23:36:24,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c3a7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:36:24, skipping insertion in model container [2018-01-24 23:36:24,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:36:23" (2/3) ... [2018-01-24 23:36:24,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c3a7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:36:24, skipping insertion in model container [2018-01-24 23:36:24,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:36:24" (3/3) ... [2018-01-24 23:36:24,168 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0158_true-valid-memsafety_true-termination.i [2018-01-24 23:36:24,175 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 23:36:24,182 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-24 23:36:24,226 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 23:36:24,226 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 23:36:24,226 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 23:36:24,227 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 23:36:24,227 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 23:36:24,227 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 23:36:24,227 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 23:36:24,227 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 23:36:24,228 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 23:36:24,249 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-01-24 23:36:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 23:36:24,255 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:36:24,256 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:36:24,257 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 23:36:24,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784654, now seen corresponding path program 1 times [2018-01-24 23:36:24,266 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:36:24,315 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:24,315 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:36:24,315 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:24,315 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:36:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:36:24,369 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:36:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:36:24,462 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:36:24,463 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 23:36:24,463 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:36:24,465 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 23:36:24,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 23:36:24,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:36:24,478 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2018-01-24 23:36:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:36:24,598 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-01-24 23:36:24,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 23:36:24,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-01-24 23:36:24,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:36:24,607 INFO L225 Difference]: With dead ends: 27 [2018-01-24 23:36:24,607 INFO L226 Difference]: Without dead ends: 21 [2018-01-24 23:36:24,610 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 [2018-01-24 23:36:24,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-01-24 23:36:24,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-01-24 23:36:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-01-24 23:36:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-01-24 23:36:24,635 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-01-24 23:36:24,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:36:24,636 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-01-24 23:36:24,636 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 23:36:24,636 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-01-24 23:36:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 23:36:24,636 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:36:24,636 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:36:24,636 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 23:36:24,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784655, now seen corresponding path program 1 times [2018-01-24 23:36:24,637 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:36:24,638 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:24,638 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:36:24,638 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:24,638 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:36:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:36:24,657 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:36:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:36:24,739 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:36:24,739 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:36:24,740 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:36:24,741 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:36:24,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:36:24,742 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:36:24,742 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 4 states. [2018-01-24 23:36:24,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:36:24,794 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-01-24 23:36:24,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:36:24,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 23:36:24,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:36:24,795 INFO L225 Difference]: With dead ends: 21 [2018-01-24 23:36:24,796 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 23:36:24,796 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 [2018-01-24 23:36:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 23:36:24,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 23:36:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 23:36:24,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-01-24 23:36:24,800 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-01-24 23:36:24,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:36:24,800 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-01-24 23:36:24,800 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:36:24,801 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-01-24 23:36:24,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 23:36:24,801 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:36:24,801 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:36:24,801 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 23:36:24,802 INFO L82 PathProgramCache]: Analyzing trace with hash 514218689, now seen corresponding path program 1 times [2018-01-24 23:36:24,802 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:36:24,803 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:24,804 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:36:24,804 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:24,804 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:36:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:36:24,819 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:36:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:36:24,938 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:36:24,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:36:24,938 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:36:24,938 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:36:24,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:36:24,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:36:24,939 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 5 states. [2018-01-24 23:36:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:36:25,025 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-01-24 23:36:25,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:36:25,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 23:36:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:36:25,026 INFO L225 Difference]: With dead ends: 18 [2018-01-24 23:36:25,026 INFO L226 Difference]: Without dead ends: 17 [2018-01-24 23:36:25,026 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 [2018-01-24 23:36:25,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-01-24 23:36:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-01-24 23:36:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-01-24 23:36:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-01-24 23:36:25,028 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 11 [2018-01-24 23:36:25,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:36:25,029 INFO L432 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-01-24 23:36:25,029 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:36:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-01-24 23:36:25,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 23:36:25,029 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:36:25,029 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:36:25,029 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 23:36:25,029 INFO L82 PathProgramCache]: Analyzing trace with hash 514218690, now seen corresponding path program 1 times [2018-01-24 23:36:25,030 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:36:25,030 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:25,031 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:36:25,031 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:25,031 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:36:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:36:25,041 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:36:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:36:25,107 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:36:25,107 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:36:25,107 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:36:25,108 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:36:25,108 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:36:25,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:36:25,108 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 5 states. [2018-01-24 23:36:25,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:36:25,165 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-01-24 23:36:25,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:36:25,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 23:36:25,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:36:25,166 INFO L225 Difference]: With dead ends: 17 [2018-01-24 23:36:25,166 INFO L226 Difference]: Without dead ends: 16 [2018-01-24 23:36:25,166 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 [2018-01-24 23:36:25,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-01-24 23:36:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-01-24 23:36:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-01-24 23:36:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2018-01-24 23:36:25,169 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2018-01-24 23:36:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:36:25,169 INFO L432 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2018-01-24 23:36:25,170 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:36:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2018-01-24 23:36:25,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 23:36:25,170 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:36:25,171 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:36:25,171 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 23:36:25,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1518594947, now seen corresponding path program 1 times [2018-01-24 23:36:25,171 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:36:25,172 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:25,172 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:36:25,172 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:36:25,172 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:36:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:36:25,187 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:36:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:36:25,377 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:36:25,377 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 23:36:25,377 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:36:25,378 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 23:36:25,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 23:36:25,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 23:36:25,378 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 8 states. [2018-01-24 23:36:25,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:36:25,569 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-01-24 23:36:25,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 23:36:25,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-01-24 23:36:25,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:36:25,569 INFO L225 Difference]: With dead ends: 16 [2018-01-24 23:36:25,570 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 23:36:25,570 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-01-24 23:36:25,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 23:36:25,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 23:36:25,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 23:36:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 23:36:25,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-24 23:36:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:36:25,572 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 23:36:25,572 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 23:36:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 23:36:25,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 23:36:25,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 23:36:25,591 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,591 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 633) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:36:25,592 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,592 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 633) the Hoare annotation is: true [2018-01-24 23:36:25,592 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,592 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 633) the Hoare annotation is: true [2018-01-24 23:36:25,592 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,592 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,592 INFO L401 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2018-01-24 23:36:25,592 INFO L401 ceAbstractionStarter]: For program point mainErr3RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point mainErr8EnsuresViolation(lines 619 633) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point mainErr6RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 619 633) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point mainErr4RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point L621''(lines 621 628) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point L621(lines 621 628) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point L631(line 631) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,593 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 619 633) no Hoare annotation was computed. [2018-01-24 23:36:25,594 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 619 633) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:36:25,594 INFO L401 ceAbstractionStarter]: For program point mainErr7RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,594 INFO L401 ceAbstractionStarter]: For program point L629(line 629) no Hoare annotation was computed. [2018-01-24 23:36:25,594 INFO L401 ceAbstractionStarter]: For program point mainErr2RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,594 INFO L401 ceAbstractionStarter]: For program point mainErr5RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 23:36:25,594 INFO L401 ceAbstractionStarter]: For program point L621'(lines 621 628) no Hoare annotation was computed. [2018-01-24 23:36:25,594 INFO L401 ceAbstractionStarter]: For program point L631'(line 631) no Hoare annotation was computed. [2018-01-24 23:36:25,594 INFO L401 ceAbstractionStarter]: For program point L629'(line 629) no Hoare annotation was computed. [2018-01-24 23:36:25,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 11:36:25 BoogieIcfgContainer [2018-01-24 23:36:25,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 23:36:25,599 INFO L168 Benchmark]: Toolchain (without parser) took 1864.18 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 262.0 MB in the beginning and 333.0 MB in the end (delta: -71.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 5.3 GB. [2018-01-24 23:36:25,600 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 23:36:25,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.02 ms. Allocated memory is still 305.1 MB. Free memory was 262.0 MB in the beginning and 251.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 23:36:25,601 INFO L168 Benchmark]: Boogie Preprocessor took 35.20 ms. Allocated memory is still 305.1 MB. Free memory was 251.9 MB in the beginning and 249.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 23:36:25,601 INFO L168 Benchmark]: RCFGBuilder took 191.13 ms. Allocated memory is still 305.1 MB. Free memory was 249.9 MB in the beginning and 236.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-24 23:36:25,601 INFO L168 Benchmark]: TraceAbstraction took 1434.24 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 236.8 MB in the beginning and 333.0 MB in the end (delta: -96.2 MB). Peak memory consumption was 62.6 MB. Max. memory is 5.3 GB. [2018-01-24 23:36:25,603 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 196.02 ms. Allocated memory is still 305.1 MB. Free memory was 262.0 MB in the beginning and 251.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.20 ms. Allocated memory is still 305.1 MB. Free memory was 251.9 MB in the beginning and 249.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 191.13 ms. Allocated memory is still 305.1 MB. Free memory was 249.9 MB in the beginning and 236.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1434.24 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 236.8 MB in the beginning and 333.0 MB in the end (delta: -96.2 MB). Peak memory consumption was 62.6 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, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 38 SDslu, 70 SDs, 0 SdLazy, 118 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s 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, 0.0s SatisfiabilityAnalysisTime, 0.5s 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_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_23-36-25-612.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_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_23-36-25-612.csv Received shutdown request...