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.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0158_1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 15:48:06,512 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 15:48:06,515 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 15:48:06,528 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 15:48:06,528 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 15:48:06,529 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 15:48:06,530 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 15:48:06,532 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 15:48:06,535 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 15:48:06,536 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 15:48:06,537 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 15:48:06,537 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 15:48:06,538 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 15:48:06,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 15:48:06,541 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 15:48:06,544 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 15:48:06,546 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 15:48:06,548 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 15:48:06,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 15:48:06,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 15:48:06,553 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 15:48:06,553 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 15:48:06,554 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 15:48:06,555 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 15:48:06,556 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 15:48:06,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 15:48:06,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 15:48:06,558 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 15:48:06,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 15:48:06,558 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 15:48:06,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 15:48:06,559 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.epf [2018-01-24 15:48:06,570 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 15:48:06,570 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 15:48:06,571 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 15:48:06,571 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 15:48:06,572 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 15:48:06,572 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 15:48:06,572 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 15:48:06,573 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 15:48:06,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 15:48:06,573 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 15:48:06,573 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 15:48:06,574 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 15:48:06,574 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 15:48:06,574 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 15:48:06,574 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 15:48:06,574 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 15:48:06,575 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 15:48:06,575 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 15:48:06,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 15:48:06,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 15:48:06,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 15:48:06,576 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 15:48:06,576 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 15:48:06,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:48:06,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 15:48:06,577 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 15:48:06,577 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 15:48:06,577 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 15:48:06,577 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 15:48:06,577 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 15:48:06,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 15:48:06,578 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 15:48:06,578 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 15:48:06,579 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 15:48:06,579 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 15:48:06,615 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 15:48:06,626 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 15:48:06,630 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 15:48:06,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 15:48:06,632 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 15:48:06,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0158_1_true-valid-memsafety_true-termination.i [2018-01-24 15:48:06,799 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 15:48:06,806 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 15:48:06,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 15:48:06,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 15:48:06,815 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 15:48:06,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:48:06" (1/1) ... [2018-01-24 15:48:06,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6e807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:06, skipping insertion in model container [2018-01-24 15:48:06,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:48:06" (1/1) ... [2018-01-24 15:48:06,838 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:48:06,886 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:48:07,006 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:48:07,024 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:48:07,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07 WrapperNode [2018-01-24 15:48:07,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 15:48:07,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 15:48:07,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 15:48:07,036 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 15:48:07,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (1/1) ... [2018-01-24 15:48:07,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (1/1) ... [2018-01-24 15:48:07,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (1/1) ... [2018-01-24 15:48:07,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (1/1) ... [2018-01-24 15:48:07,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (1/1) ... [2018-01-24 15:48:07,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (1/1) ... [2018-01-24 15:48:07,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (1/1) ... [2018-01-24 15:48:07,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 15:48:07,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 15:48:07,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 15:48:07,072 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 15:48:07,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (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 15:48:07,136 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 15:48:07,136 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 15:48:07,136 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 15:48:07,136 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 15:48:07,136 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 15:48:07,136 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 15:48:07,137 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 15:48:07,137 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 15:48:07,137 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 15:48:07,137 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 15:48:07,137 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 15:48:07,137 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 15:48:07,138 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 15:48:07,138 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 15:48:07,138 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 15:48:07,138 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 15:48:07,339 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 15:48:07,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:48:07 BoogieIcfgContainer [2018-01-24 15:48:07,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 15:48:07,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 15:48:07,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 15:48:07,343 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 15:48:07,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:48:06" (1/3) ... [2018-01-24 15:48:07,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47aafef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:48:07, skipping insertion in model container [2018-01-24 15:48:07,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:48:07" (2/3) ... [2018-01-24 15:48:07,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47aafef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:48:07, skipping insertion in model container [2018-01-24 15:48:07,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:48:07" (3/3) ... [2018-01-24 15:48:07,348 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0158_1_true-valid-memsafety_true-termination.i [2018-01-24 15:48:07,356 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 15:48:07,363 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-01-24 15:48:07,414 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 15:48:07,414 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 15:48:07,415 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 15:48:07,415 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 15:48:07,415 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 15:48:07,415 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 15:48:07,415 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 15:48:07,415 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 15:48:07,416 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 15:48:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-24 15:48:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 15:48:07,446 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:48:07,447 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:48:07,447 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-01-24 15:48:07,453 INFO L82 PathProgramCache]: Analyzing trace with hash 32614707, now seen corresponding path program 1 times [2018-01-24 15:48:07,456 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:48:07,516 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:07,516 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:48:07,516 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:07,516 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:48:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:48:07,577 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:48:07,696 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 15:48:07,698 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:48:07,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 15:48:07,698 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:48:07,700 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:48:07,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:48:07,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:48:07,713 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2018-01-24 15:48:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:48:07,862 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-24 15:48:07,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:48:07,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-01-24 15:48:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:48:07,872 INFO L225 Difference]: With dead ends: 39 [2018-01-24 15:48:07,872 INFO L226 Difference]: Without dead ends: 30 [2018-01-24 15:48:07,876 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 15:48:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-24 15:48:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-01-24 15:48:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-01-24 15:48:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-01-24 15:48:07,907 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 8 [2018-01-24 15:48:07,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:48:07,907 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-01-24 15:48:07,907 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:48:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-01-24 15:48:07,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 15:48:07,908 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:48:07,908 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:48:07,908 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-01-24 15:48:07,908 INFO L82 PathProgramCache]: Analyzing trace with hash 32614708, now seen corresponding path program 1 times [2018-01-24 15:48:07,908 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:48:07,909 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:07,909 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:48:07,910 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:07,910 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:48:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:48:07,929 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:48:08,014 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 15:48:08,015 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:48:08,015 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:48:08,015 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:48:08,016 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:48:08,017 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:48:08,017 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:48:08,017 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 4 states. [2018-01-24 15:48:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:48:08,065 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-01-24 15:48:08,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 15:48:08,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 15:48:08,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:48:08,066 INFO L225 Difference]: With dead ends: 30 [2018-01-24 15:48:08,067 INFO L226 Difference]: Without dead ends: 24 [2018-01-24 15:48:08,067 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 15:48:08,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-24 15:48:08,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-24 15:48:08,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-24 15:48:08,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-01-24 15:48:08,071 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2018-01-24 15:48:08,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:48:08,072 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-01-24 15:48:08,072 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:48:08,072 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-01-24 15:48:08,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 15:48:08,072 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:48:08,072 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:48:08,073 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-01-24 15:48:08,073 INFO L82 PathProgramCache]: Analyzing trace with hash 607540962, now seen corresponding path program 1 times [2018-01-24 15:48:08,073 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:48:08,074 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:08,074 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:48:08,074 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:08,074 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:48:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:48:08,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:48:08,178 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 15:48:08,178 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:48:08,178 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:48:08,178 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:48:08,179 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:48:08,179 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:48:08,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:48:08,179 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2018-01-24 15:48:08,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:48:08,248 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-01-24 15:48:08,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 15:48:08,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-24 15:48:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:48:08,249 INFO L225 Difference]: With dead ends: 24 [2018-01-24 15:48:08,249 INFO L226 Difference]: Without dead ends: 23 [2018-01-24 15:48:08,249 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 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 15:48:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-01-24 15:48:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-01-24 15:48:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-01-24 15:48:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-01-24 15:48:08,253 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 15 [2018-01-24 15:48:08,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:48:08,254 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-01-24 15:48:08,254 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:48:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-01-24 15:48:08,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 15:48:08,255 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:48:08,255 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:48:08,255 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-01-24 15:48:08,255 INFO L82 PathProgramCache]: Analyzing trace with hash 607540963, now seen corresponding path program 1 times [2018-01-24 15:48:08,255 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:48:08,256 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:08,257 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:48:08,257 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:08,257 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:48:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:48:08,271 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:48:08,350 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 15:48:08,350 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:48:08,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:48:08,350 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:48:08,351 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:48:08,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:48:08,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:48:08,352 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2018-01-24 15:48:08,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:48:08,537 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-01-24 15:48:08,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 15:48:08,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-24 15:48:08,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:48:08,538 INFO L225 Difference]: With dead ends: 23 [2018-01-24 15:48:08,539 INFO L226 Difference]: Without dead ends: 22 [2018-01-24 15:48:08,539 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 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 15:48:08,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-01-24 15:48:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-01-24 15:48:08,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-01-24 15:48:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-01-24 15:48:08,543 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2018-01-24 15:48:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:48:08,543 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-01-24 15:48:08,543 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:48:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-01-24 15:48:08,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 15:48:08,544 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:48:08,544 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:48:08,544 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-01-24 15:48:08,544 INFO L82 PathProgramCache]: Analyzing trace with hash -510727324, now seen corresponding path program 1 times [2018-01-24 15:48:08,545 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:48:08,545 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:08,545 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:48:08,546 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:48:08,546 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:48:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:48:08,565 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:48:08,748 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 15:48:08,749 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:48:08,749 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 15:48:08,749 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:48:08,750 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 15:48:08,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 15:48:08,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 15:48:08,750 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2018-01-24 15:48:08,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:48:08,956 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-01-24 15:48:08,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 15:48:08,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-01-24 15:48:08,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:48:08,957 INFO L225 Difference]: With dead ends: 22 [2018-01-24 15:48:08,957 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 15:48:08,958 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 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 15:48:08,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 15:48:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 15:48:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 15:48:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 15:48:08,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-01-24 15:48:08,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:48:08,960 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 15:48:08,960 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 15:48:08,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 15:48:08,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 15:48:08,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 15:48:08,996 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,996 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 641) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 15:48:08,997 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,997 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 641) the Hoare annotation is: true [2018-01-24 15:48:08,997 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,997 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 641) the Hoare annotation is: true [2018-01-24 15:48:08,997 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,997 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,997 INFO L401 ceAbstractionStarter]: For program point mainErr6RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,997 INFO L401 ceAbstractionStarter]: For program point L630'(line 630) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point L622(lines 622 629) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point L622''(lines 622 629) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point mainErr2RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point mainErr9RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point mainErr5RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point mainErr13RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,998 INFO L401 ceAbstractionStarter]: For program point mainErr14EnsuresViolation(lines 620 641) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point L639'(line 639) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point mainErr3RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point mainErr11RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point mainErr8RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point L634(line 634) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 620 641) no Hoare annotation was computed. [2018-01-24 15:48:08,999 INFO L401 ceAbstractionStarter]: For program point mainErr4RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:09,000 INFO L401 ceAbstractionStarter]: For program point L632(line 632) no Hoare annotation was computed. [2018-01-24 15:48:09,000 INFO L401 ceAbstractionStarter]: For program point L631(lines 631 635) no Hoare annotation was computed. [2018-01-24 15:48:09,000 INFO L401 ceAbstractionStarter]: For program point mainErr12RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:09,000 INFO L401 ceAbstractionStarter]: For program point L637(line 637) no Hoare annotation was computed. [2018-01-24 15:48:09,000 INFO L401 ceAbstractionStarter]: For program point L636(line 636) no Hoare annotation was computed. [2018-01-24 15:48:09,000 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 620 641) no Hoare annotation was computed. [2018-01-24 15:48:09,000 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 620 641) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 15:48:09,000 INFO L401 ceAbstractionStarter]: For program point mainErr7RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:09,001 INFO L401 ceAbstractionStarter]: For program point mainErr10RequiresViolation(lines 1 641) no Hoare annotation was computed. [2018-01-24 15:48:09,001 INFO L401 ceAbstractionStarter]: For program point L636'(lines 636 638) no Hoare annotation was computed. [2018-01-24 15:48:09,001 INFO L401 ceAbstractionStarter]: For program point L639(line 639) no Hoare annotation was computed. [2018-01-24 15:48:09,001 INFO L401 ceAbstractionStarter]: For program point L634'(line 634) no Hoare annotation was computed. [2018-01-24 15:48:09,001 INFO L401 ceAbstractionStarter]: For program point L622'(lines 622 629) no Hoare annotation was computed. [2018-01-24 15:48:09,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 03:48:09 BoogieIcfgContainer [2018-01-24 15:48:09,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 15:48:09,005 INFO L168 Benchmark]: Toolchain (without parser) took 2205.51 ms. Allocated memory was 305.1 MB in the beginning and 464.5 MB in the end (delta: 159.4 MB). Free memory was 264.1 MB in the beginning and 325.0 MB in the end (delta: -60.9 MB). Peak memory consumption was 98.5 MB. Max. memory is 5.3 GB. [2018-01-24 15:48:09,006 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 305.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:48:09,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.03 ms. Allocated memory is still 305.1 MB. Free memory was 264.1 MB in the beginning and 254.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:48:09,006 INFO L168 Benchmark]: Boogie Preprocessor took 35.50 ms. Allocated memory is still 305.1 MB. Free memory was 254.1 MB in the beginning and 252.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:48:09,007 INFO L168 Benchmark]: RCFGBuilder took 267.85 ms. Allocated memory is still 305.1 MB. Free memory was 252.1 MB in the beginning and 235.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:48:09,007 INFO L168 Benchmark]: TraceAbstraction took 1663.51 ms. Allocated memory was 305.1 MB in the beginning and 464.5 MB in the end (delta: 159.4 MB). Free memory was 235.1 MB in the beginning and 325.0 MB in the end (delta: -89.8 MB). Peak memory consumption was 69.6 MB. Max. memory is 5.3 GB. [2018-01-24 15:48:09,008 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 305.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 229.03 ms. Allocated memory is still 305.1 MB. Free memory was 264.1 MB in the beginning and 254.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.50 ms. Allocated memory is still 305.1 MB. Free memory was 254.1 MB in the beginning and 252.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 267.85 ms. Allocated memory is still 305.1 MB. Free memory was 252.1 MB in the beginning and 235.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1663.51 ms. Allocated memory was 305.1 MB in the beginning and 464.5 MB in the end (delta: 159.4 MB). Free memory was 235.1 MB in the beginning and 325.0 MB in the end (delta: -89.8 MB). Peak memory consumption was 69.6 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]: 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]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 620]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: 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 - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 39 locations, 15 error locations. SAFE Result, 1.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 SDtfs, 81 SDslu, 93 SDs, 0 SdLazy, 143 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 6591 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_1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_15-48-09-016.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_15-48-09-016.csv Received shutdown request...