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/mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/memsafety/test-0019_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 08:20:57,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 08:20:57,198 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 08:20:57,213 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 08:20:57,213 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 08:20:57,214 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 08:20:57,216 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 08:20:57,218 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 08:20:57,220 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 08:20:57,221 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 08:20:57,221 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 08:20:57,221 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 08:20:57,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 08:20:57,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 08:20:57,224 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 08:20:57,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 08:20:57,229 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 08:20:57,231 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 08:20:57,233 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 08:20:57,234 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 08:20:57,236 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 08:20:57,242 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 08:20:57,242 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 08:20:57,243 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-21 08:20:57,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 08:20:57,254 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 08:20:57,255 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 08:20:57,255 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 08:20:57,255 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 08:20:57,255 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 08:20:57,255 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-21 08:20:57,256 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 08:20:57,256 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 08:20:57,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 08:20:57,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 08:20:57,257 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 08:20:57,257 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 08:20:57,257 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 08:20:57,258 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 08:20:57,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 08:20:57,258 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 08:20:57,258 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 08:20:57,258 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 08:20:57,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 08:20:57,259 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 08:20:57,259 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 08:20:57,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 08:20:57,259 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 08:20:57,260 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 08:20:57,260 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 08:20:57,260 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 08:20:57,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:20:57,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 08:20:57,261 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 08:20:57,261 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 08:20:57,261 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 08:20:57,261 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 08:20:57,261 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 08:20:57,261 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 08:20:57,262 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 08:20:57,262 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 08:20:57,262 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 08:20:57,263 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 08:20:57,263 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 08:20:57,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 08:20:57,308 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 08:20:57,311 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 08:20:57,312 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 08:20:57,313 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 08:20:57,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-01-21 08:20:57,470 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 08:20:57,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 08:20:57,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 08:20:57,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 08:20:57,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 08:20:57,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669ff2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57, skipping insertion in model container [2018-01-21 08:20:57,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,497 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:20:57,536 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:20:57,658 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:20:57,676 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:20:57,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57 WrapperNode [2018-01-21 08:20:57,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 08:20:57,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 08:20:57,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 08:20:57,685 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 08:20:57,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (1/1) ... [2018-01-21 08:20:57,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 08:20:57,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 08:20:57,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 08:20:57,717 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 08:20:57,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (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 [2018-01-21 08:20:57,765 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 08:20:57,765 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 08:20:57,765 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-01-21 08:20:57,766 INFO L136 BoogieDeclarations]: Found implementation of procedure free_data [2018-01-21 08:20:57,766 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 08:20:57,766 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 08:20:57,766 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 08:20:57,766 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 08:20:57,766 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 08:20:57,766 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 08:20:57,767 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 08:20:57,767 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 08:20:57,767 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_data [2018-01-21 08:20:57,767 INFO L128 BoogieDeclarations]: Found specification of procedure free_data [2018-01-21 08:20:57,767 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 08:20:57,767 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 08:20:57,767 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 08:20:57,955 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 08:20:57,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:20:57 BoogieIcfgContainer [2018-01-21 08:20:57,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 08:20:57,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 08:20:57,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 08:20:57,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 08:20:57,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 08:20:57" (1/3) ... [2018-01-21 08:20:57,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f3ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:20:57, skipping insertion in model container [2018-01-21 08:20:57,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:20:57" (2/3) ... [2018-01-21 08:20:57,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f3ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:20:57, skipping insertion in model container [2018-01-21 08:20:57,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:20:57" (3/3) ... [2018-01-21 08:20:57,963 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-01-21 08:20:57,970 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 08:20:57,977 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-21 08:20:58,025 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:20:58,026 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:20:58,026 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:20:58,026 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:20:58,026 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:20:58,026 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:20:58,026 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:20:58,027 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 08:20:58,027 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:20:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:20:58,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 08:20:58,056 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:20:58,057 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 08:20:58,058 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 08:20:58,064 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2018-01-21 08:20:58,067 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:20:58,127 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,127 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:20:58,127 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,128 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:20:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:20:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:20:58,184 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:20:58,191 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:20:58,199 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:20:58,199 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:20:58,199 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:20:58,199 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:20:58,199 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:20:58,199 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:20:58,199 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:20:58,199 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 08:20:58,200 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:20:58,201 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:20:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-21 08:20:58,202 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:20:58,202 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:20:58,202 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:20:58,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1011307142, now seen corresponding path program 1 times [2018-01-21 08:20:58,203 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:20:58,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,204 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:20:58,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,204 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:20:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:20:58,256 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:20:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:20:58,571 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:20:58,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-21 08:20:58,571 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:20:58,573 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-21 08:20:58,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-21 08:20:58,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-01-21 08:20:58,592 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 7 states. [2018-01-21 08:20:58,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:20:58,788 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-01-21 08:20:58,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-21 08:20:58,790 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-01-21 08:20:58,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:20:58,795 INFO L225 Difference]: With dead ends: 39 [2018-01-21 08:20:58,796 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:20:58,799 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-01-21 08:20:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:20:58,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:20:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:20:58,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:20:58,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-01-21 08:20:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:20:58,821 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:20:58,821 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-21 08:20:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:20:58,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:20:58,824 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:20:58,824 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:20:58,824 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:20:58,824 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:20:58,824 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:20:58,824 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:20:58,824 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:20:58,825 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == alloc_dataErr0EnsuresViolation======== [2018-01-21 08:20:58,825 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:20:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:20:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 08:20:58,827 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:20:58,828 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:20:58,828 INFO L371 AbstractCegarLoop]: === Iteration 1 === [alloc_dataErr0EnsuresViolation]=== [2018-01-21 08:20:58,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1418411209, now seen corresponding path program 1 times [2018-01-21 08:20:58,828 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:20:58,829 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,830 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:20:58,830 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,830 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:20:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:20:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:20:58,868 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:20:58,871 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:20:58,873 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:20:58,881 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:20:58,882 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:20:58,882 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:20:58,882 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:20:58,882 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:20:58,882 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:20:58,882 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:20:58,882 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 08:20:58,882 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:20:58,884 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:20:58,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 08:20:58,885 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:20:58,886 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:20:58,886 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 08:20:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash 803416031, now seen corresponding path program 1 times [2018-01-21 08:20:58,886 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:20:58,887 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,887 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:20:58,888 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:58,888 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:20:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:20:58,911 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:20:59,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:20:59,013 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:20:59,014 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-21 08:20:59,014 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:20:59,015 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-21 08:20:59,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-21 08:20:59,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-01-21 08:20:59,016 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 7 states. [2018-01-21 08:20:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:20:59,167 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-01-21 08:20:59,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-21 08:20:59,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-01-21 08:20:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:20:59,168 INFO L225 Difference]: With dead ends: 39 [2018-01-21 08:20:59,168 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:20:59,169 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-01-21 08:20:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:20:59,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:20:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:20:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:20:59,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-01-21 08:20:59,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:20:59,170 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:20:59,170 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-21 08:20:59,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:20:59,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:20:59,172 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:20:59,172 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:20:59,173 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:20:59,173 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:20:59,173 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:20:59,173 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:20:59,173 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:20:59,173 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == free_dataErr0EnsuresViolation======== [2018-01-21 08:20:59,173 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:20:59,175 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:20:59,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-21 08:20:59,176 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:20:59,176 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:20:59,176 INFO L371 AbstractCegarLoop]: === Iteration 1 === [free_dataErr0EnsuresViolation]=== [2018-01-21 08:20:59,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1496401107, now seen corresponding path program 1 times [2018-01-21 08:20:59,177 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:20:59,178 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:59,178 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:20:59,178 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:59,178 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:20:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:20:59,195 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:20:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:20:59,221 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:20:59,221 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:20:59,221 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:20:59,222 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 08:20:59,222 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 08:20:59,222 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:20:59,222 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2018-01-21 08:20:59,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:20:59,257 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-01-21 08:20:59,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 08:20:59,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-01-21 08:20:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:20:59,261 INFO L225 Difference]: With dead ends: 43 [2018-01-21 08:20:59,262 INFO L226 Difference]: Without dead ends: 27 [2018-01-21 08:20:59,262 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:20:59,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-21 08:20:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-01-21 08:20:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-21 08:20:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-01-21 08:20:59,272 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-01-21 08:20:59,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:20:59,273 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-01-21 08:20:59,273 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 08:20:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-01-21 08:20:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-21 08:20:59,273 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:20:59,274 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:20:59,274 INFO L371 AbstractCegarLoop]: === Iteration 2 === [free_dataErr0EnsuresViolation]=== [2018-01-21 08:20:59,274 INFO L82 PathProgramCache]: Analyzing trace with hash -891865226, now seen corresponding path program 1 times [2018-01-21 08:20:59,274 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:20:59,275 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:59,275 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:20:59,275 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:20:59,275 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:20:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:20:59,290 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:20:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:20:59,523 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:20:59,523 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-21 08:20:59,523 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:20:59,525 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-21 08:20:59,525 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-21 08:20:59,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-01-21 08:20:59,526 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 13 states. [2018-01-21 08:20:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:20:59,807 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-01-21 08:20:59,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-21 08:20:59,807 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-01-21 08:20:59,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:20:59,808 INFO L225 Difference]: With dead ends: 27 [2018-01-21 08:20:59,808 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:20:59,809 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2018-01-21 08:20:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:20:59,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:20:59,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:20:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:20:59,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-01-21 08:20:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:20:59,810 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:20:59,810 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-21 08:20:59,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:20:59,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:20:59,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 08:20:59 BoogieIcfgContainer [2018-01-21 08:20:59,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 08:20:59,813 INFO L168 Benchmark]: Toolchain (without parser) took 2343.01 ms. Allocated memory was 304.1 MB in the beginning and 476.1 MB in the end (delta: 172.0 MB). Free memory was 262.4 MB in the beginning and 421.6 MB in the end (delta: -159.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 5.3 GB. [2018-01-21 08:20:59,814 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 304.1 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:20:59,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.48 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 251.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:20:59,815 INFO L168 Benchmark]: Boogie Preprocessor took 32.02 ms. Allocated memory is still 304.1 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-01-21 08:20:59,815 INFO L168 Benchmark]: RCFGBuilder took 239.11 ms. Allocated memory is still 304.1 MB. Free memory was 249.4 MB in the beginning and 233.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. [2018-01-21 08:20:59,815 INFO L168 Benchmark]: TraceAbstraction took 1855.90 ms. Allocated memory was 304.1 MB in the beginning and 476.1 MB in the end (delta: 172.0 MB). Free memory was 233.8 MB in the beginning and 421.6 MB in the end (delta: -187.9 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:20:59,816 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 304.1 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 210.48 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 251.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.02 ms. Allocated memory is still 304.1 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 239.11 ms. Allocated memory is still 304.1 MB. Free memory was 249.4 MB in the beginning and 233.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1855.90 ms. Allocated memory was 304.1 MB in the beginning and 476.1 MB in the end (delta: 172.0 MB). Free memory was 233.8 MB in the beginning and 421.6 MB in the end (delta: -187.9 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 5 procedures, 39 locations, 5 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 39 locations, 5 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 623]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L640] FCALL TData data; VAL [data={26:0}] [L641] CALL alloc_data(&data) VAL [pdata={26:0}] [L625] EXPR, FCALL malloc(16) VAL [malloc(16)={28:0}, pdata={26:0}, pdata={26:0}] [L625] FCALL pdata->lo = malloc(16) VAL [malloc(16)={28:0}, pdata={26:0}, pdata={26:0}] [L626] EXPR, FCALL malloc(24) VAL [malloc(16)={28:0}, malloc(24)={27:0}, pdata={26:0}, pdata={26:0}] [L626] FCALL pdata->hi = malloc(24) VAL [malloc(16)={28:0}, malloc(24)={27:0}, pdata={26:0}, pdata={26:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: alloc_dataErr0EnsuresViolation CFG has 5 procedures, 39 locations, 5 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 639]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 5 procedures, 39 locations, 5 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 2548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 628]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: free_dataErr0EnsuresViolation CFG has 5 procedures, 39 locations, 5 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 23 SDslu, 38 SDs, 0 SdLazy, 176 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 6618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_08-20-59-826.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_08-20-59-826.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_08-20-59-826.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_08-20-59-826.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_08-20-59-826.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_08-20-59-826.csv Received shutdown request...