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_imprecise.epf -i ../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:33:28,820 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:33:28,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:33:28,837 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:33:28,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:33:28,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:33:28,840 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:33:28,841 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:33:28,844 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:33:28,845 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:33:28,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-01-21 00:33:28,867 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_imprecise.epf [2018-01-21 00:33:28,876 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:33:28,876 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:33:28,877 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:33:28,877 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:33:28,877 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:33:28,877 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-21 00:33:28,877 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:33:28,877 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:33:28,878 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:33:28,878 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:33:28,878 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:33:28,878 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:33:28,878 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:33:28,878 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:33:28,878 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:33:28,879 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:33:28,879 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:33:28,879 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:33:28,879 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:33:28,879 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:33:28,879 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:33:28,879 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:33:28,880 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:33:28,880 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:33:28,880 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:33:28,880 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:33:28,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:33:28,881 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:33:28,881 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:33:28,882 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:33:28,882 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:33:28,882 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:33:28,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:33:28,927 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:33:28,931 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:33:28,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:33:28,932 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:33:28,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-01-21 00:33:29,091 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:33:29,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:33:29,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:33:29,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:33:29,101 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:33:29,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7811b4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29, skipping insertion in model container [2018-01-21 00:33:29,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,118 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:33:29,154 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:33:29,260 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:33:29,276 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:33:29,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29 WrapperNode [2018-01-21 00:33:29,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:33:29,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:33:29,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:33:29,288 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:33:29,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (1/1) ... [2018-01-21 00:33:29,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:33:29,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:33:29,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:33:29,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:33:29,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (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 00:33:29,373 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:33:29,374 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:33:29,374 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:33:29,374 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:33:29,374 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:33:29,374 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:33:29,374 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:33:29,375 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:33:29,375 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:33:29,375 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:33:29,375 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 00:33:29,375 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:33:29,375 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:33:29,375 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:33:29,509 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:33:29,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:33:29 BoogieIcfgContainer [2018-01-21 00:33:29,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:33:29,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:33:29,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:33:29,512 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:33:29,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:33:29" (1/3) ... [2018-01-21 00:33:29,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a663305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:33:29, skipping insertion in model container [2018-01-21 00:33:29,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:33:29" (2/3) ... [2018-01-21 00:33:29,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a663305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:33:29, skipping insertion in model container [2018-01-21 00:33:29,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:33:29" (3/3) ... [2018-01-21 00:33:29,515 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-01-21 00:33:29,522 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:33:29,527 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 00:33:29,576 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:33:29,577 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:33:29,577 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:33:29,577 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:33:29,577 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:33:29,577 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:33:29,577 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:33:29,578 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:33:29,578 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:33:29,598 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-01-21 00:33:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:33:29,605 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:33:29,606 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:33:29,606 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:33:29,611 INFO L82 PathProgramCache]: Analyzing trace with hash 46130, now seen corresponding path program 1 times [2018-01-21 00:33:29,614 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:33:29,667 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:33:29,667 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:33:29,667 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:33:29,667 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:33:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:33:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:33:29,724 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:33:29,730 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:33:29,736 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:33:29,736 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:33:29,736 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:33:29,737 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:33:29,737 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:33:29,737 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:33:29,737 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:33:29,737 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:33:29,737 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:33:29,739 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-01-21 00:33:29,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-21 00:33:29,740 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:33:29,740 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:33:29,740 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:33:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash -646336693, now seen corresponding path program 1 times [2018-01-21 00:33:29,740 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:33:29,741 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:33:29,741 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:33:29,742 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:33:29,742 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:33:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:33:29,793 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:33:30,018 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 00:33:30,019 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:33:30,019 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-21 00:33:30,020 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:33:30,021 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-21 00:33:30,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-21 00:33:30,103 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-21 00:33:30,106 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 7 states. [2018-01-21 00:33:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:33:30,275 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2018-01-21 00:33:30,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-21 00:33:30,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-01-21 00:33:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:33:30,286 INFO L225 Difference]: With dead ends: 20 [2018-01-21 00:33:30,287 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:33:30,290 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-21 00:33:30,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:33:30,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:33:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:33:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:33:30,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-01-21 00:33:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:33:30,320 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:33:30,320 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-21 00:33:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:33:30,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:33:30,323 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:33:30,323 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:33:30,323 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:33:30,323 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:33:30,323 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:33:30,324 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:33:30,324 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:33:30,324 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 00:33:30,324 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:33:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-01-21 00:33:30,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-21 00:33:30,326 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:33:30,326 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:33:30,326 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 00:33:30,326 INFO L82 PathProgramCache]: Analyzing trace with hash 897650458, now seen corresponding path program 1 times [2018-01-21 00:33:30,326 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:33:30,328 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:33:30,328 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:33:30,328 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:33:30,328 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:33:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:33:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:33:30,366 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:33:30,369 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:33:30,370 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:33:30,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:33:30 BoogieIcfgContainer [2018-01-21 00:33:30,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 00:33:30,382 INFO L168 Benchmark]: Toolchain (without parser) took 1289.91 ms. Allocated memory was 307.2 MB in the beginning and 467.1 MB in the end (delta: 159.9 MB). Free memory was 265.1 MB in the beginning and 421.4 MB in the end (delta: -156.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 5.3 GB. [2018-01-21 00:33:30,383 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:33:30,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.00 ms. Allocated memory is still 307.2 MB. Free memory was 265.1 MB in the beginning and 254.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:33:30,384 INFO L168 Benchmark]: Boogie Preprocessor took 34.18 ms. Allocated memory is still 307.2 MB. Free memory was 254.0 MB in the beginning and 253.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-21 00:33:30,384 INFO L168 Benchmark]: RCFGBuilder took 187.35 ms. Allocated memory is still 307.2 MB. Free memory was 253.0 MB in the beginning and 239.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-21 00:33:30,385 INFO L168 Benchmark]: TraceAbstraction took 870.60 ms. Allocated memory was 307.2 MB in the beginning and 467.1 MB in the end (delta: 159.9 MB). Free memory was 239.9 MB in the beginning and 421.4 MB in the end (delta: -181.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:33:30,387 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 191.00 ms. Allocated memory is still 307.2 MB. Free memory was 265.1 MB in the beginning and 254.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.18 ms. Allocated memory is still 307.2 MB. Free memory was 254.0 MB in the beginning and 253.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 187.35 ms. Allocated memory is still 307.2 MB. Free memory was 253.0 MB in the beginning and 239.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 870.60 ms. Allocated memory was 307.2 MB in the beginning and 467.1 MB in the end (delta: 159.9 MB). Free memory was 239.9 MB in the beginning and 421.4 MB in the end (delta: -181.5 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 3 procedures, 20 locations, 3 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=20occurred 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 3 procedures, 20 locations, 3 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 54 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 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: 619]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L621-L628] FCALL union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; VAL [data={42:0}] [L629] EXPR, FCALL malloc(37U) VAL [data={42:0}, malloc(37U)={38:0}] [L629] FCALL data.p0 = malloc(37U) VAL [data={42:0}, malloc(37U)={38:0}] [L630] FCALL data.str.p2 = &data VAL [data={42:0}, malloc(37U)={38:0}] [L631] FCALL data.str.c[1] = sizeof data.str.p1 VAL [data={42:0}, malloc(37U)={38:0}] [L632] return 0; VAL [\result=0, data={42:0}, malloc(37U)={38:0}] [L632] return 0; VAL [\result=0, malloc(37U)={38:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 3 procedures, 20 locations, 3 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=20occurred 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, 14 NumberOfCodeBlocks, 14 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 RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_00-33-30-396.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_00-33-30-396.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_00-33-30-396.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_00-33-30-396.csv Received shutdown request...