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/memsafety/test-0158_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 15:33:27,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 15:33:27,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 15:33:27,964 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 15:33:27,965 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 15:33:27,966 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 15:33:27,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 15:33:27,968 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 15:33:27,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 15:33:27,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 15:33:27,971 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 15:33:27,971 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 15:33:27,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 15:33:27,972 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 15:33:27,973 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 15:33:27,976 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 15:33:27,978 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 15:33:27,980 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 15:33:27,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 15:33:27,982 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 15:33:27,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 15:33:27,985 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 15:33:27,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 15:33:27,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 15:33:27,986 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 15:33:27,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 15:33:27,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 15:33:27,988 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 15:33:27,989 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 15:33:27,989 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 15:33:27,989 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 15:33:27,990 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 15:33:27,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 15:33:28,000 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 15:33:28,001 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 15:33:28,001 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 15:33:28,001 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 15:33:28,001 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 15:33:28,001 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 15:33:28,002 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 15:33:28,002 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 15:33:28,002 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 15:33:28,003 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 15:33:28,003 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 15:33:28,003 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 15:33:28,003 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 15:33:28,003 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 15:33:28,004 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 15:33:28,004 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 15:33:28,004 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 15:33:28,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 15:33:28,004 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 15:33:28,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 15:33:28,005 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 15:33:28,005 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 15:33:28,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:33:28,005 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 15:33:28,006 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 15:33:28,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 15:33:28,006 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 15:33:28,006 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 15:33:28,006 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 15:33:28,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 15:33:28,007 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 15:33:28,007 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 15:33:28,008 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 15:33:28,008 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 15:33:28,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 15:33:28,054 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 15:33:28,058 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 15:33:28,060 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 15:33:28,060 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 15:33:28,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-01-24 15:33:28,239 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 15:33:28,243 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 15:33:28,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 15:33:28,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 15:33:28,249 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 15:33:28,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377c67a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28, skipping insertion in model container [2018-01-24 15:33:28,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,269 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:33:28,308 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:33:28,408 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:33:28,421 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:33:28,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28 WrapperNode [2018-01-24 15:33:28,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 15:33:28,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 15:33:28,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 15:33:28,428 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 15:33:28,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (1/1) ... [2018-01-24 15:33:28,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 15:33:28,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 15:33:28,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 15:33:28,457 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 15:33:28,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (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 15:33:28,501 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 15:33:28,501 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 15:33:28,501 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 15:33:28,501 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 15:33:28,501 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 15:33:28,502 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 15:33:28,502 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 15:33:28,502 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 15:33:28,502 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 15:33:28,502 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 15:33:28,502 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 15:33:28,503 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 15:33:28,503 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 15:33:28,631 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 15:33:28,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:33:28 BoogieIcfgContainer [2018-01-24 15:33:28,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 15:33:28,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 15:33:28,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 15:33:28,674 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 15:33:28,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:33:28" (1/3) ... [2018-01-24 15:33:28,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186eff8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:33:28, skipping insertion in model container [2018-01-24 15:33:28,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:33:28" (2/3) ... [2018-01-24 15:33:28,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186eff8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:33:28, skipping insertion in model container [2018-01-24 15:33:28,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:33:28" (3/3) ... [2018-01-24 15:33:28,677 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0158_true-valid-memsafety_true-termination.i [2018-01-24 15:33:28,683 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 15:33:28,689 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-24 15:33:28,730 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 15:33:28,730 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 15:33:28,730 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 15:33:28,730 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 15:33:28,731 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 15:33:28,731 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 15:33:28,731 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 15:33:28,731 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 15:33:28,732 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 15:33:28,747 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-01-24 15:33:28,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 15:33:28,753 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:33:28,754 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:33:28,754 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 15:33:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784654, now seen corresponding path program 1 times [2018-01-24 15:33:28,760 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:33:28,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:28,800 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:33:28,800 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:28,800 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:33:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:33:28,848 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:33:28,933 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 15:33:28,935 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:33:28,936 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 15:33:28,936 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:33:28,939 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:33:28,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:33:28,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:33:28,959 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2018-01-24 15:33:29,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:33:29,034 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-01-24 15:33:29,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:33:29,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-01-24 15:33:29,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:33:29,046 INFO L225 Difference]: With dead ends: 27 [2018-01-24 15:33:29,046 INFO L226 Difference]: Without dead ends: 21 [2018-01-24 15:33:29,050 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 15:33:29,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-01-24 15:33:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-01-24 15:33:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-01-24 15:33:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-01-24 15:33:29,144 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-01-24 15:33:29,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:33:29,144 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-01-24 15:33:29,144 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:33:29,144 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-01-24 15:33:29,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 15:33:29,145 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:33:29,145 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:33:29,145 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 15:33:29,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784655, now seen corresponding path program 1 times [2018-01-24 15:33:29,145 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:33:29,146 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,146 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:33:29,146 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,147 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:33:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:33:29,164 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:33:29,243 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 15:33:29,243 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:33:29,243 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:33:29,243 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:33:29,245 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:33:29,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:33:29,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:33:29,246 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 4 states. [2018-01-24 15:33:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:33:29,323 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-01-24 15:33:29,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 15:33:29,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 15:33:29,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:33:29,324 INFO L225 Difference]: With dead ends: 21 [2018-01-24 15:33:29,324 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 15:33:29,325 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 15:33:29,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 15:33:29,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 15:33:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 15:33:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-01-24 15:33:29,328 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-01-24 15:33:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:33:29,328 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-01-24 15:33:29,328 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:33:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-01-24 15:33:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 15:33:29,329 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:33:29,329 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:33:29,329 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 15:33:29,329 INFO L82 PathProgramCache]: Analyzing trace with hash 514218689, now seen corresponding path program 1 times [2018-01-24 15:33:29,329 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:33:29,330 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,330 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:33:29,330 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,331 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:33:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:33:29,347 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:33:29,462 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 15:33:29,463 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:33:29,463 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:33:29,463 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:33:29,463 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:33:29,464 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:33:29,464 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:33:29,464 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 5 states. [2018-01-24 15:33:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:33:29,552 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-01-24 15:33:29,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 15:33:29,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 15:33:29,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:33:29,554 INFO L225 Difference]: With dead ends: 18 [2018-01-24 15:33:29,554 INFO L226 Difference]: Without dead ends: 17 [2018-01-24 15:33:29,554 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 15:33:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-01-24 15:33:29,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-01-24 15:33:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-01-24 15:33:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-01-24 15:33:29,558 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 11 [2018-01-24 15:33:29,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:33:29,558 INFO L432 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-01-24 15:33:29,558 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:33:29,558 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-01-24 15:33:29,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 15:33:29,559 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:33:29,559 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:33:29,559 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 15:33:29,560 INFO L82 PathProgramCache]: Analyzing trace with hash 514218690, now seen corresponding path program 1 times [2018-01-24 15:33:29,560 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:33:29,561 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,561 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:33:29,561 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,561 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:33:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:33:29,574 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:33:29,622 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 15:33:29,623 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:33:29,623 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:33:29,623 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:33:29,623 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:33:29,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:33:29,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:33:29,624 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 5 states. [2018-01-24 15:33:29,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:33:29,667 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-01-24 15:33:29,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 15:33:29,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 15:33:29,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:33:29,668 INFO L225 Difference]: With dead ends: 17 [2018-01-24 15:33:29,668 INFO L226 Difference]: Without dead ends: 16 [2018-01-24 15:33:29,668 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 15:33:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-01-24 15:33:29,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-01-24 15:33:29,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-01-24 15:33:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2018-01-24 15:33:29,671 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2018-01-24 15:33:29,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:33:29,671 INFO L432 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2018-01-24 15:33:29,671 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:33:29,671 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2018-01-24 15:33:29,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 15:33:29,672 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:33:29,672 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:33:29,672 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-24 15:33:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1518594947, now seen corresponding path program 1 times [2018-01-24 15:33:29,673 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:33:29,673 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,673 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:33:29,673 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:33:29,674 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:33:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:33:29,689 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:33:29,933 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 15:33:29,933 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:33:29,933 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 15:33:29,934 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:33:29,934 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 15:33:29,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 15:33:29,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 15:33:29,935 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 8 states. [2018-01-24 15:33:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:33:30,169 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-01-24 15:33:30,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 15:33:30,169 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-01-24 15:33:30,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:33:30,170 INFO L225 Difference]: With dead ends: 16 [2018-01-24 15:33:30,170 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 15:33:30,170 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-01-24 15:33:30,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 15:33:30,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 15:33:30,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 15:33:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 15:33:30,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-24 15:33:30,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:33:30,172 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 15:33:30,172 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 15:33:30,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 15:33:30,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 15:33:30,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 15:33:30,190 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,190 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 633) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 15:33:30,190 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,190 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 633) the Hoare annotation is: true [2018-01-24 15:33:30,190 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 633) the Hoare annotation is: true [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point mainErr3RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point mainErr8EnsuresViolation(lines 619 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point mainErr6RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 619 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point mainErr4RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point L621''(lines 621 628) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point L621(lines 621 628) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point L631(line 631) no Hoare annotation was computed. [2018-01-24 15:33:30,191 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 619 633) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 619 633) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point mainErr7RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point L629(line 629) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point mainErr2RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point mainErr5RequiresViolation(lines 1 633) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point L621'(lines 621 628) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point L631'(line 631) no Hoare annotation was computed. [2018-01-24 15:33:30,192 INFO L401 ceAbstractionStarter]: For program point L629'(line 629) no Hoare annotation was computed. [2018-01-24 15:33:30,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 03:33:30 BoogieIcfgContainer [2018-01-24 15:33:30,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 15:33:30,196 INFO L168 Benchmark]: Toolchain (without parser) took 1957.12 ms. Allocated memory was 300.9 MB in the beginning and 455.1 MB in the end (delta: 154.1 MB). Free memory was 260.9 MB in the beginning and 328.0 MB in the end (delta: -67.1 MB). Peak memory consumption was 87.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:33:30,197 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 300.9 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:33:30,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.47 ms. Allocated memory is still 300.9 MB. Free memory was 260.9 MB in the beginning and 250.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 15:33:30,198 INFO L168 Benchmark]: Boogie Preprocessor took 28.49 ms. Allocated memory is still 300.9 MB. Free memory was 249.8 MB in the beginning and 248.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-24 15:33:30,198 INFO L168 Benchmark]: RCFGBuilder took 214.40 ms. Allocated memory is still 300.9 MB. Free memory was 248.8 MB in the beginning and 235.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. [2018-01-24 15:33:30,198 INFO L168 Benchmark]: TraceAbstraction took 1523.65 ms. Allocated memory was 300.9 MB in the beginning and 455.1 MB in the end (delta: 154.1 MB). Free memory was 235.2 MB in the beginning and 328.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 61.3 MB. Max. memory is 5.3 GB. [2018-01-24 15:33:30,200 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 300.9 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 184.47 ms. Allocated memory is still 300.9 MB. Free memory was 260.9 MB in the beginning and 250.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.49 ms. Allocated memory is still 300.9 MB. Free memory was 249.8 MB in the beginning and 248.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 214.40 ms. Allocated memory is still 300.9 MB. Free memory was 248.8 MB in the beginning and 235.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1523.65 ms. Allocated memory was 300.9 MB in the beginning and 455.1 MB in the end (delta: 154.1 MB). Free memory was 235.2 MB in the beginning and 328.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 61.3 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, 1.4s 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, 0.2s 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.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_15-33-30-209.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_15-33-30-209.csv Received shutdown request...