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_precise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 06:10:54,429 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 06:10:54,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 06:10:54,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 06:10:54,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 06:10:54,446 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 06:10:54,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 06:10:54,448 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 06:10:54,451 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 06:10:54,451 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 06:10:54,452 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 06:10:54,452 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 06:10:54,453 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 06:10:54,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 06:10:54,455 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 06:10:54,458 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 06:10:54,460 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 06:10:54,462 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 06:10:54,463 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 06:10:54,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 06:10:54,466 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 06:10:54,467 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 06:10:54,467 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 06:10:54,468 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 06:10:54,469 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 06:10:54,470 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 06:10:54,470 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 06:10:54,471 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 06:10:54,471 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 06:10:54,471 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 06:10:54,472 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 06:10:54,472 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_precise.epf [2018-01-21 06:10:54,482 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 06:10:54,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 06:10:54,483 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 06:10:54,483 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 06:10:54,483 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 06:10:54,484 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 06:10:54,484 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 06:10:54,484 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 06:10:54,485 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 06:10:54,485 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 06:10:54,485 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 06:10:54,485 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 06:10:54,485 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 06:10:54,485 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 06:10:54,486 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 06:10:54,486 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 06:10:54,486 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 06:10:54,486 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 06:10:54,486 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 06:10:54,486 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 06:10:54,487 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 06:10:54,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 06:10:54,487 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 06:10:54,487 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 06:10:54,487 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 06:10:54,488 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 06:10:54,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 06:10:54,488 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 06:10:54,488 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 06:10:54,488 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 06:10:54,489 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 06:10:54,489 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 06:10:54,489 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 06:10:54,489 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 06:10:54,489 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 06:10:54,490 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 06:10:54,490 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 06:10:54,491 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 06:10:54,491 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 06:10:54,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 06:10:54,535 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 06:10:54,539 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 06:10:54,540 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 06:10:54,540 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 06:10:54,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_false-valid-free.i [2018-01-21 06:10:54,736 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 06:10:54,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 06:10:54,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 06:10:54,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 06:10:54,768 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 06:10:54,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c7d0dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54, skipping insertion in model container [2018-01-21 06:10:54,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,792 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:10:54,842 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:10:54,948 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:10:54,959 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:10:54,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54 WrapperNode [2018-01-21 06:10:54,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 06:10:54,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 06:10:54,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 06:10:54,967 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 06:10:54,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (1/1) ... [2018-01-21 06:10:54,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 06:10:54,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 06:10:54,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 06:10:54,994 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 06:10:54,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (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 06:10:55,043 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 06:10:55,043 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 06:10:55,043 INFO L136 BoogieDeclarations]: Found implementation of procedure h_unsafe [2018-01-21 06:10:55,043 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-21 06:10:55,043 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 06:10:55,043 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 06:10:55,043 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 06:10:55,044 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 06:10:55,044 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-01-21 06:10:55,044 INFO L128 BoogieDeclarations]: Found specification of procedure h_unsafe [2018-01-21 06:10:55,044 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-21 06:10:55,044 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 06:10:55,044 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 06:10:55,044 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 06:10:55,151 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 06:10:55,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:10:55 BoogieIcfgContainer [2018-01-21 06:10:55,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 06:10:55,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 06:10:55,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 06:10:55,155 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 06:10:55,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 06:10:54" (1/3) ... [2018-01-21 06:10:55,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f924766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:10:55, skipping insertion in model container [2018-01-21 06:10:55,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:10:54" (2/3) ... [2018-01-21 06:10:55,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f924766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:10:55, skipping insertion in model container [2018-01-21 06:10:55,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:10:55" (3/3) ... [2018-01-21 06:10:55,159 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test3_false-valid-free.i [2018-01-21 06:10:55,166 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 06:10:55,171 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-21 06:10:55,213 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:10:55,213 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:10:55,213 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:10:55,213 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:10:55,213 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:10:55,213 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:10:55,214 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:10:55,214 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 06:10:55,214 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:10:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-21 06:10:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 06:10:55,232 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:10:55,233 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 06:10:55,233 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 06:10:55,237 INFO L82 PathProgramCache]: Analyzing trace with hash 52857, now seen corresponding path program 1 times [2018-01-21 06:10:55,240 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:10:55,292 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,292 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:10:55,292 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,292 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:10:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:10:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:10:55,346 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:10:55,352 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,357 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:10:55,358 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:10:55,358 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:10:55,358 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:10:55,358 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:10:55,358 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:10:55,359 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:10:55,359 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == h_unsafeErr0EnsuresViolation======== [2018-01-21 06:10:55,359 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:10:55,360 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-21 06:10:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-21 06:10:55,361 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:10:55,361 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:10:55,361 INFO L371 AbstractCegarLoop]: === Iteration 1 === [h_unsafeErr0EnsuresViolation]=== [2018-01-21 06:10:55,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1002359421, now seen corresponding path program 1 times [2018-01-21 06:10:55,362 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:10:55,364 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,364 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:10:55,364 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,365 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:10:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:10:55,382 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:10:55,407 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 06:10:55,409 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:10:55,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-01-21 06:10:55,409 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:10:55,411 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 06:10:55,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 06:10:55,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 06:10:55,424 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-01-21 06:10:55,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:10:55,517 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-01-21 06:10:55,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 06:10:55,518 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-01-21 06:10:55,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:10:55,524 INFO L225 Difference]: With dead ends: 24 [2018-01-21 06:10:55,525 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:10:55,528 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 06:10:55,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:10:55,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:10:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:10:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:10:55,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-01-21 06:10:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:10:55,548 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:10:55,548 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 06:10:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:10:55,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:10:55,550 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:10:55,550 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:10:55,551 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:10:55,551 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:10:55,551 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:10:55,551 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:10:55,551 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:10:55,551 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 06:10:55,551 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:10:55,552 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-21 06:10:55,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-21 06:10:55,553 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:10:55,553 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:10:55,553 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 06:10:55,554 INFO L82 PathProgramCache]: Analyzing trace with hash 179996649, now seen corresponding path program 1 times [2018-01-21 06:10:55,554 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:10:55,555 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,556 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:10:55,556 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,556 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:10:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:10:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:10:55,585 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:10:55,587 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,588 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,589 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,589 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,589 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,598 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:10:55,598 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:10:55,598 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:10:55,598 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:10:55,598 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:10:55,598 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:10:55,598 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:10:55,599 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 06:10:55,599 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:10:55,600 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-21 06:10:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 06:10:55,601 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:10:55,601 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:10:55,601 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 06:10:55,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1966665564, now seen corresponding path program 1 times [2018-01-21 06:10:55,601 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:10:55,603 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,603 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:10:55,603 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,603 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:10:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:10:55,615 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:10:55,657 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 06:10:55,658 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:10:55,658 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:10:55,658 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:10:55,658 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:10:55,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:10:55,659 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:10:55,659 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-01-21 06:10:55,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:10:55,711 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-21 06:10:55,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:10:55,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-21 06:10:55,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:10:55,712 INFO L225 Difference]: With dead ends: 26 [2018-01-21 06:10:55,712 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:10:55,712 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 06:10:55,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:10:55,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:10:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:10:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:10:55,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-21 06:10:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:10:55,713 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:10:55,713 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:10:55,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:10:55,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:10:55,714 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:10:55,714 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:10:55,715 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:10:55,715 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:10:55,715 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:10:55,715 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:10:55,715 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:10:55,715 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-21 06:10:55,715 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:10:55,716 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-21 06:10:55,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 06:10:55,717 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:10:55,717 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:10:55,717 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:10:55,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1378581262, now seen corresponding path program 1 times [2018-01-21 06:10:55,717 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:10:55,719 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,719 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:10:55,719 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,719 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:10:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:10:55,728 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:10:55,750 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 06:10:55,751 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:10:55,751 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:10:55,751 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:10:55,752 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:10:55,752 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:10:55,752 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:10:55,752 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-01-21 06:10:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:10:55,803 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-21 06:10:55,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:10:55,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-21 06:10:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:10:55,806 INFO L225 Difference]: With dead ends: 26 [2018-01-21 06:10:55,806 INFO L226 Difference]: Without dead ends: 15 [2018-01-21 06:10:55,807 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 06:10:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-01-21 06:10:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-01-21 06:10:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-01-21 06:10:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-01-21 06:10:55,816 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2018-01-21 06:10:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:10:55,816 INFO L432 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-01-21 06:10:55,816 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:10:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-01-21 06:10:55,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-21 06:10:55,817 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:10:55,817 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:10:55,818 INFO L371 AbstractCegarLoop]: === Iteration 2 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:10:55,818 INFO L82 PathProgramCache]: Analyzing trace with hash -213656853, now seen corresponding path program 1 times [2018-01-21 06:10:55,818 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:10:55,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,819 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:10:55,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:10:55,819 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:10:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:10:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:10:55,837 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:10:55,841 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,841 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,842 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:10:55,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 06:10:55 BoogieIcfgContainer [2018-01-21 06:10:55,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 06:10:55,846 INFO L168 Benchmark]: Toolchain (without parser) took 1108.95 ms. Allocated memory was 303.6 MB in the beginning and 457.7 MB in the end (delta: 154.1 MB). Free memory was 260.9 MB in the beginning and 404.5 MB in the end (delta: -143.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-01-21 06:10:55,847 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 06:10:55,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.03 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 248.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-21 06:10:55,847 INFO L168 Benchmark]: Boogie Preprocessor took 26.71 ms. Allocated memory is still 303.6 MB. Free memory was 248.7 MB in the beginning and 246.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 06:10:55,848 INFO L168 Benchmark]: RCFGBuilder took 157.96 ms. Allocated memory is still 303.6 MB. Free memory was 246.7 MB in the beginning and 235.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 5.3 GB. [2018-01-21 06:10:55,848 INFO L168 Benchmark]: TraceAbstraction took 692.56 ms. Allocated memory was 303.6 MB in the beginning and 457.7 MB in the end (delta: 154.1 MB). Free memory was 235.1 MB in the beginning and 404.5 MB in the end (delta: -169.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 06:10:55,850 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 204.03 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 248.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.71 ms. Allocated memory is still 303.6 MB. Free memory was 248.7 MB in the beginning and 246.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 157.96 ms. Allocated memory is still 303.6 MB. Free memory was 246.7 MB in the beginning and 235.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 692.56 ms. Allocated memory was 303.6 MB in the beginning and 457.7 MB in the end (delta: 154.1 MB). Free memory was 235.1 MB in the beginning and 404.5 MB in the end (delta: -169.4 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) - 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: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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: 1434]: 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_unsafeErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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: [L1444] CALL entry_point() [L1439] CALL, EXPR h_unsafe() [L1435] RET return (int *)__VERIFIER_nondet_pointer(); [L1439] EXPR h_unsafe() VAL [h_unsafe()={0:0}] [L1439] int *p = h_unsafe(); [L1440] COND FALSE, RET !(\read(*p)) VAL [p={0:0}] [L1444] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 17 NumberOfCodeBlocks, 17 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: 1443]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 6 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=24occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 392 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: 1438]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1444] CALL entry_point() [L1439] CALL, EXPR h_unsafe() [L1435] RET return (int *)__VERIFIER_nondet_pointer(); [L1439] EXPR h_unsafe() VAL [h_unsafe()={3:0}] [L1439] int *p = h_unsafe(); [L1440] COND TRUE \read(*p) VAL [p={3:0}] [L1440] FCALL free(p) VAL [p={3:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: entry_pointErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 5 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 8 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=24occurred 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, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 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 RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_06-10-55-858.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_06-10-55-858.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_06-10-55-858.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_06-10-55-858.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_06-10-55-858.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_06-10-55-858.csv Received shutdown request...