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_smtcomp.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 10:41:55,323 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 10:41:55,325 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 10:41:55,339 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 10:41:55,339 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 10:41:55,340 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 10:41:55,341 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 10:41:55,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 10:41:55,345 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 10:41:55,345 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 10:41:55,346 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 10:41:55,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 10:41:55,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 10:41:55,348 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 10:41:55,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 10:41:55,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 10:41:55,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 10:41:55,356 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 10:41:55,357 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 10:41:55,358 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 10:41:55,360 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 10:41:55,365 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 10:41:55,366 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 10:41:55,366 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_smtcomp.epf [2018-01-21 10:41:55,376 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 10:41:55,377 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 10:41:55,378 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 10:41:55,378 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 10:41:55,378 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 10:41:55,378 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 10:41:55,378 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 10:41:55,379 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 10:41:55,379 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 10:41:55,380 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 10:41:55,380 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 10:41:55,380 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 10:41:55,380 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 10:41:55,380 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 10:41:55,381 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 10:41:55,381 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 10:41:55,381 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 10:41:55,381 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 10:41:55,381 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 10:41:55,381 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 10:41:55,382 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 10:41:55,382 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 10:41:55,382 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 10:41:55,382 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 10:41:55,383 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 10:41:55,383 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 10:41:55,383 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 10:41:55,383 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 10:41:55,384 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 10:41:55,384 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 10:41:55,384 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 10:41:55,384 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 10:41:55,384 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 10:41:55,384 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 10:41:55,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 10:41:55,385 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 10:41:55,385 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 10:41:55,386 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 10:41:55,386 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 10:41:55,421 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 10:41:55,434 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 10:41:55,437 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 10:41:55,438 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 10:41:55,439 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 10:41:55,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_true-valid-memsafety_true-termination.i [2018-01-21 10:41:55,621 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 10:41:55,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 10:41:55,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 10:41:55,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 10:41:55,635 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 10:41:55,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4b3da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55, skipping insertion in model container [2018-01-21 10:41:55,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,660 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:41:55,712 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:41:55,824 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:41:55,837 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:41:55,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55 WrapperNode [2018-01-21 10:41:55,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 10:41:55,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 10:41:55,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 10:41:55,844 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 10:41:55,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (1/1) ... [2018-01-21 10:41:55,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 10:41:55,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 10:41:55,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 10:41:55,882 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 10:41:55,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (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 10:41:55,930 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 10:41:55,930 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 10:41:55,930 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-21 10:41:55,930 INFO L136 BoogieDeclarations]: Found implementation of procedure h_safe [2018-01-21 10:41:55,930 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-21 10:41:55,931 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure h_safe [2018-01-21 10:41:55,931 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-21 10:41:55,932 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 10:41:55,932 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 10:41:55,932 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 10:41:56,098 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 10:41:56,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:41:56 BoogieIcfgContainer [2018-01-21 10:41:56,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 10:41:56,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 10:41:56,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 10:41:56,103 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 10:41:56,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 10:41:55" (1/3) ... [2018-01-21 10:41:56,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720620c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:41:56, skipping insertion in model container [2018-01-21 10:41:56,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:41:55" (2/3) ... [2018-01-21 10:41:56,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720620c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:41:56, skipping insertion in model container [2018-01-21 10:41:56,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:41:56" (3/3) ... [2018-01-21 10:41:56,107 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test3_true-valid-memsafety_true-termination.i [2018-01-21 10:41:56,116 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 10:41:56,124 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-01-21 10:41:56,178 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:41:56,178 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:41:56,178 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:41:56,178 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:41:56,178 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:41:56,178 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:41:56,178 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:41:56,178 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-21 10:41:56,179 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:41:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 10:41:56,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-21 10:41:56,202 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:56,203 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:41:56,203 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 10:41:56,207 INFO L82 PathProgramCache]: Analyzing trace with hash 381050145, now seen corresponding path program 1 times [2018-01-21 10:41:56,209 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:56,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,261 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:56,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,261 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:41:56,313 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:41:56,364 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 10:41:56,366 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:41:56,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:41:56,367 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:41:56,370 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 10:41:56,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 10:41:56,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:41:56,387 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-01-21 10:41:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:41:56,587 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-01-21 10:41:56,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 10:41:56,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-21 10:41:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:41:56,596 INFO L225 Difference]: With dead ends: 36 [2018-01-21 10:41:56,596 INFO L226 Difference]: Without dead ends: 14 [2018-01-21 10:41:56,599 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 10:41:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-01-21 10:41:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-01-21 10:41:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-01-21 10:41:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-01-21 10:41:56,626 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 11 [2018-01-21 10:41:56,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:41:56,627 INFO L432 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-01-21 10:41:56,627 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 10:41:56,627 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-01-21 10:41:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 10:41:56,627 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:56,628 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:41:56,628 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 10:41:56,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1116876131, now seen corresponding path program 1 times [2018-01-21 10:41:56,628 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:56,630 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,630 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:56,630 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,631 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:41:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:41:56,691 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 10:41:56,697 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,699 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,708 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:41:56,708 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:41:56,708 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:41:56,708 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:41:56,708 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:41:56,708 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:41:56,708 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:41:56,708 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 10:41:56,708 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:41:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 10:41:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 10:41:56,710 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:56,710 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 10:41:56,710 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 10:41:56,710 INFO L82 PathProgramCache]: Analyzing trace with hash 62755, now seen corresponding path program 1 times [2018-01-21 10:41:56,710 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:56,711 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,712 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:56,712 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,712 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:41:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:41:56,721 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 10:41:56,722 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,723 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:41:56,723 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:41:56,723 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:41:56,724 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:41:56,724 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:41:56,724 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:41:56,724 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:41:56,724 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 10:41:56,724 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:41:56,725 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 10:41:56,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-21 10:41:56,726 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:56,726 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] [2018-01-21 10:41:56,726 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:41:56,726 INFO L82 PathProgramCache]: Analyzing trace with hash -264557971, now seen corresponding path program 1 times [2018-01-21 10:41:56,727 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:56,728 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,728 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:56,728 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,728 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:41:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:41:56,759 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 10:41:56,760 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,761 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,761 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,762 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,762 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,762 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:41:56,765 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:41:56,765 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:41:56,765 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:41:56,766 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:41:56,766 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:41:56,766 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:41:56,766 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:41:56,766 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 10:41:56,766 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:41:56,767 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 10:41:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-21 10:41:56,768 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:56,768 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] [2018-01-21 10:41:56,768 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 10:41:56,768 INFO L82 PathProgramCache]: Analyzing trace with hash -880721244, now seen corresponding path program 1 times [2018-01-21 10:41:56,768 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:56,769 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,769 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:56,770 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,770 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:41:56,779 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:41:56,828 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 10:41:56,829 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:41:56,829 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:41:56,829 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:41:56,829 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 10:41:56,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 10:41:56,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:41:56,830 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-01-21 10:41:56,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:41:56,893 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-01-21 10:41:56,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 10:41:56,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-01-21 10:41:56,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:41:56,894 INFO L225 Difference]: With dead ends: 36 [2018-01-21 10:41:56,895 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 10:41:56,895 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 10:41:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 10:41:56,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 10:41:56,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 10:41:56,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 10:41:56,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-01-21 10:41:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:41:56,897 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 10:41:56,897 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 10:41:56,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 10:41:56,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 10:41:56,899 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:41:56,900 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:41:56,900 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:41:56,900 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:41:56,900 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:41:56,900 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:41:56,900 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:41:56,900 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == h_safeErr0EnsuresViolation======== [2018-01-21 10:41:56,900 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:41:56,901 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 10:41:56,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-21 10:41:56,902 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:56,902 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:41:56,903 INFO L371 AbstractCegarLoop]: === Iteration 1 === [h_safeErr0EnsuresViolation]=== [2018-01-21 10:41:56,903 INFO L82 PathProgramCache]: Analyzing trace with hash 266316619, now seen corresponding path program 1 times [2018-01-21 10:41:56,903 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:56,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,905 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:56,905 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,905 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:41:56,915 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:41:56,938 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 10:41:56,938 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:41:56,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:41:56,938 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:41:56,939 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 10:41:56,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 10:41:56,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:41:56,939 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-01-21 10:41:56,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:41:56,977 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-01-21 10:41:56,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 10:41:56,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-01-21 10:41:56,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:41:56,977 INFO L225 Difference]: With dead ends: 36 [2018-01-21 10:41:56,977 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 10:41:56,978 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 10:41:56,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 10:41:56,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 10:41:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 10:41:56,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 10:41:56,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-01-21 10:41:56,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:41:56,979 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 10:41:56,979 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 10:41:56,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 10:41:56,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 10:41:56,980 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:41:56,980 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:41:56,980 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:41:56,980 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:41:56,980 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:41:56,980 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:41:56,980 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:41:56,980 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-21 10:41:56,981 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:41:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 10:41:56,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-21 10:41:56,982 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:56,983 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:41:56,983 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 10:41:56,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1983438874, now seen corresponding path program 1 times [2018-01-21 10:41:56,983 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:56,984 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,985 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:56,985 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:56,985 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:41:56,996 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:41:57,029 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 10:41:57,029 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:41:57,029 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:41:57,029 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:41:57,029 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 10:41:57,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 10:41:57,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:41:57,030 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-01-21 10:41:57,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:41:57,073 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-01-21 10:41:57,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 10:41:57,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-01-21 10:41:57,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:41:57,075 INFO L225 Difference]: With dead ends: 36 [2018-01-21 10:41:57,075 INFO L226 Difference]: Without dead ends: 23 [2018-01-21 10:41:57,076 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 10:41:57,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-01-21 10:41:57,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-01-21 10:41:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-01-21 10:41:57,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-01-21 10:41:57,080 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 18 [2018-01-21 10:41:57,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:41:57,081 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-01-21 10:41:57,081 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 10:41:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-01-21 10:41:57,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 10:41:57,082 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:57,082 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:41:57,082 INFO L371 AbstractCegarLoop]: === Iteration 2 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 10:41:57,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1357059945, now seen corresponding path program 1 times [2018-01-21 10:41:57,083 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:57,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:57,084 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:57,085 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:57,085 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:41:57,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:41:57,260 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 10:41:57,260 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:41:57,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-21 10:41:57,260 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:41:57,261 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-21 10:41:57,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-21 10:41:57,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-21 10:41:57,261 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 7 states. [2018-01-21 10:41:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:41:57,280 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-01-21 10:41:57,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-21 10:41:57,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-21 10:41:57,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:41:57,282 INFO L225 Difference]: With dead ends: 32 [2018-01-21 10:41:57,282 INFO L226 Difference]: Without dead ends: 22 [2018-01-21 10:41:57,283 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-21 10:41:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-01-21 10:41:57,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-01-21 10:41:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-01-21 10:41:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-01-21 10:41:57,288 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 19 [2018-01-21 10:41:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:41:57,288 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-01-21 10:41:57,289 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-21 10:41:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-01-21 10:41:57,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-21 10:41:57,290 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:41:57,290 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] [2018-01-21 10:41:57,290 INFO L371 AbstractCegarLoop]: === Iteration 3 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 10:41:57,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1167295915, now seen corresponding path program 1 times [2018-01-21 10:41:57,290 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:41:57,292 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:57,292 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:41:57,292 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:41:57,292 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:41:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:41:57,306 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:41:57,465 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 10:41:57,466 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:41:57,466 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-21 10:41:57,466 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:41:57,466 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-21 10:41:57,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-21 10:41:57,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-21 10:41:57,467 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 10 states. [2018-01-21 10:41:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:41:57,673 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-01-21 10:41:57,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-21 10:41:57,674 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-01-21 10:41:57,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:41:57,674 INFO L225 Difference]: With dead ends: 22 [2018-01-21 10:41:57,674 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 10:41:57,675 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-01-21 10:41:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 10:41:57,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 10:41:57,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 10:41:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 10:41:57,676 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-01-21 10:41:57,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:41:57,676 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 10:41:57,676 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-21 10:41:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 10:41:57,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 10:41:57,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 10:41:57 BoogieIcfgContainer [2018-01-21 10:41:57,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 10:41:57,679 INFO L168 Benchmark]: Toolchain (without parser) took 2057.19 ms. Allocated memory was 309.9 MB in the beginning and 468.7 MB in the end (delta: 158.9 MB). Free memory was 266.8 MB in the beginning and 330.3 MB in the end (delta: -63.5 MB). Peak memory consumption was 95.3 MB. Max. memory is 5.3 GB. [2018-01-21 10:41:57,680 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 309.9 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:41:57,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.79 ms. Allocated memory is still 309.9 MB. Free memory was 266.8 MB in the beginning and 254.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-21 10:41:57,680 INFO L168 Benchmark]: Boogie Preprocessor took 37.01 ms. Allocated memory is still 309.9 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:41:57,680 INFO L168 Benchmark]: RCFGBuilder took 217.76 ms. Allocated memory is still 309.9 MB. Free memory was 252.6 MB in the beginning and 238.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:41:57,681 INFO L168 Benchmark]: TraceAbstraction took 1578.13 ms. Allocated memory was 309.9 MB in the beginning and 468.7 MB in the end (delta: 158.9 MB). Free memory was 238.7 MB in the beginning and 330.3 MB in the end (delta: -91.6 MB). Peak memory consumption was 67.2 MB. Max. memory is 5.3 GB. [2018-01-21 10:41:57,683 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 309.9 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 215.79 ms. Allocated memory is still 309.9 MB. Free memory was 266.8 MB in the beginning and 254.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.01 ms. Allocated memory is still 309.9 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 217.76 ms. Allocated memory is still 309.9 MB. Free memory was 252.6 MB in the beginning and 238.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1578.13 ms. Allocated memory was 309.9 MB in the beginning and 468.7 MB in the end (delta: 158.9 MB). Free memory was 238.7 MB in the beginning and 330.3 MB in the end (delta: -91.6 MB). Peak memory consumption was 67.2 MB. 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) - 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) - 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: 1072]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1443] CALL entry_point() [L1438] CALL h_safe() [L1434] CALL ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={6:0}, size=4] [L1074] return malloc(size); VAL [\old(size)=4, \result={6:0}, malloc(size)={6:0}, size=4] - StatisticsResult: Ultimate Automizer benchmark data for error location: ldv_mallocErr0EnsuresViolation CFG has 6 procedures, 32 locations, 6 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 19 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 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: 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 6 procedures, 32 locations, 6 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=32occurred 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 - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1443] CALL entry_point() [L1438] CALL, EXPR h_safe() [L1434] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; VAL [\old(size)=4, \result={0:0}, size=4] [L1434] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={0:0}] [L1434] RET return (int *)ldv_malloc(sizeof(int)); [L1438] EXPR h_safe() VAL [h_safe()={0:0}] [L1438] int *p = h_safe(); [L1439] COND FALSE, RET !(\read(*p)) VAL [p={0:0}] [L1443] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 6 procedures, 32 locations, 6 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=32occurred 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, 22 NumberOfCodeBlocks, 22 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: 1442]: 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 6 procedures, 32 locations, 6 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 19 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 931 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: 1433]: 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: h_safeErr0EnsuresViolation CFG has 6 procedures, 32 locations, 6 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 7 SDslu, 1 SDs, 0 SdLazy, 19 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 351 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: 1437]: 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: entry_pointErr0EnsuresViolation CFG has 6 procedures, 32 locations, 6 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 9 SDslu, 123 SDs, 0 SdLazy, 143 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 3917 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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/memleaks_test3_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_10-41-57-692.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_10-41-57-692.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_10-41-57-692.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_10-41-57-692.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_10-41-57-692.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_10-41-57-692.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-21_10-41-57-692.csv Received shutdown request...