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_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/diff_usafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 21:54:32,556 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 21:54:32,558 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 21:54:32,573 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 21:54:32,574 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 21:54:32,574 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 21:54:32,576 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 21:54:32,577 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 21:54:32,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 21:54:32,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 21:54:32,582 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 21:54:32,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 21:54:32,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 21:54:32,584 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 21:54:32,585 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 21:54:32,588 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 21:54:32,590 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 21:54:32,592 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 21:54:32,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 21:54:32,594 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 21:54:32,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-20 21:54:32,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-20 21:54:32,597 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-20 21:54:32,598 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-20 21:54:32,599 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-20 21:54:32,600 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-20 21:54:32,600 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-20 21:54:32,601 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-20 21:54:32,601 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-20 21:54:32,601 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 21:54:32,602 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 21:54:32,602 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-20 21:54:32,610 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 21:54:32,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 21:54:32,611 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 21:54:32,611 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 21:54:32,611 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 21:54:32,611 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 21:54:32,611 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 21:54:32,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 21:54:32,612 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 21:54:32,612 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 21:54:32,612 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 21:54:32,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 21:54:32,613 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 21:54:32,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 21:54:32,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 21:54:32,614 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 21:54:32,614 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 21:54:32,614 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 21:54:32,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 21:54:32,615 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 21:54:32,615 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 21:54:32,615 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 21:54:32,615 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 21:54:32,615 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 21:54:32,615 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-20 21:54:32,615 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 21:54:32,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 21:54:32,616 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 21:54:32,616 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 21:54:32,616 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 21:54:32,648 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 21:54:32,658 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 21:54:32,661 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 21:54:32,662 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 21:54:32,663 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 21:54:32,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/diff_usafe_false-valid-deref.i [2018-01-20 21:54:32,765 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 21:54:32,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 21:54:32,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 21:54:32,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 21:54:32,776 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 21:54:32,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e681b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32, skipping insertion in model container [2018-01-20 21:54:32,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,793 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 21:54:32,808 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 21:54:32,925 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 21:54:32,942 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 21:54:32,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32 WrapperNode [2018-01-20 21:54:32,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 21:54:32,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 21:54:32,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 21:54:32,949 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 21:54:32,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (1/1) ... [2018-01-20 21:54:32,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 21:54:32,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 21:54:32,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 21:54:32,980 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 21:54:32,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (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 [2018-01-20 21:54:33,027 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 21:54:33,027 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 21:54:33,027 INFO L136 BoogieDeclarations]: Found implementation of procedure diff [2018-01-20 21:54:33,028 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure diff [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 21:54:33,028 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 21:54:33,029 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 21:54:33,202 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 21:54:33,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:54:33 BoogieIcfgContainer [2018-01-20 21:54:33,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 21:54:33,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 21:54:33,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 21:54:33,205 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 21:54:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:54:32" (1/3) ... [2018-01-20 21:54:33,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c671b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:54:33, skipping insertion in model container [2018-01-20 21:54:33,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:54:32" (2/3) ... [2018-01-20 21:54:33,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c671b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:54:33, skipping insertion in model container [2018-01-20 21:54:33,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:54:33" (3/3) ... [2018-01-20 21:54:33,208 INFO L105 eAbstractionObserver]: Analyzing ICFG diff_usafe_false-valid-deref.i [2018-01-20 21:54:33,216 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 21:54:33,221 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-20 21:54:33,267 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:54:33,267 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:54:33,268 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:54:33,268 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:54:33,268 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:54:33,268 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:54:33,268 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:54:33,268 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 21:54:33,269 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:54:33,284 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-20 21:54:33,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 21:54:33,288 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:54:33,289 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 21:54:33,289 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 21:54:33,295 INFO L82 PathProgramCache]: Analyzing trace with hash 86492, now seen corresponding path program 1 times [2018-01-20 21:54:33,297 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:54:33,298 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:54:33,343 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,343 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:54:33,343 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:54:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:54:33,395 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 21:54:33,401 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:54:33,406 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:54:33,406 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:54:33,406 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:54:33,406 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:54:33,406 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:54:33,407 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:54:33,407 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:54:33,407 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 21:54:33,407 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:54:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-20 21:54:33,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-20 21:54:33,409 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:54:33,409 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:54:33,409 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:54:33,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1519970565, now seen corresponding path program 1 times [2018-01-20 21:54:33,410 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:54:33,410 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:54:33,411 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,411 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:54:33,411 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:54:33,439 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:54:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:54:33,472 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:54:33,473 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 21:54:33,474 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 21:54:33,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 21:54:33,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:54:33,487 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-01-20 21:54:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:54:33,504 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2018-01-20 21:54:33,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 21:54:33,506 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-01-20 21:54:33,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:54:33,517 INFO L225 Difference]: With dead ends: 51 [2018-01-20 21:54:33,518 INFO L226 Difference]: Without dead ends: 27 [2018-01-20 21:54:33,521 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:54:33,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-20 21:54:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-01-20 21:54:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-20 21:54:33,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-01-20 21:54:33,623 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 15 [2018-01-20 21:54:33,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:54:33,624 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-01-20 21:54:33,624 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 21:54:33,624 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-01-20 21:54:33,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-20 21:54:33,624 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:54:33,625 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:54:33,625 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:54:33,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1810228603, now seen corresponding path program 1 times [2018-01-20 21:54:33,625 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:54:33,625 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:54:33,626 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,626 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:54:33,626 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:54:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:54:33,667 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 21:54:33,674 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:54:33,676 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:54:33,677 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:54:33,678 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:54:33,687 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:54:33,687 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:54:33,688 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:54:33,688 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:54:33,688 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:54:33,688 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:54:33,688 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:54:33,688 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == diffErr0EnsuresViolation======== [2018-01-20 21:54:33,688 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:54:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-20 21:54:33,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-20 21:54:33,691 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:54:33,691 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:54:33,691 INFO L371 AbstractCegarLoop]: === Iteration 1 === [diffErr0EnsuresViolation]=== [2018-01-20 21:54:33,691 INFO L82 PathProgramCache]: Analyzing trace with hash 450243589, now seen corresponding path program 1 times [2018-01-20 21:54:33,691 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:54:33,692 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:54:33,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,693 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:54:33,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:54:33,707 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:54:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:54:33,724 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:54:33,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 21:54:33,724 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 21:54:33,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 21:54:33,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:54:33,725 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-01-20 21:54:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:54:33,730 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2018-01-20 21:54:33,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 21:54:33,730 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-01-20 21:54:33,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:54:33,730 INFO L225 Difference]: With dead ends: 51 [2018-01-20 21:54:33,731 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:54:33,731 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:54:33,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:54:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:54:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:54:33,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:54:33,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-01-20 21:54:33,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:54:33,733 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:54:33,733 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 21:54:33,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:54:33,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:54:33,736 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:54:33,736 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:54:33,736 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:54:33,737 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:54:33,737 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:54:33,737 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:54:33,737 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:54:33,737 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 21:54:33,737 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:54:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-20 21:54:33,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-20 21:54:33,740 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:54:33,740 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:54:33,740 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 21:54:33,740 INFO L82 PathProgramCache]: Analyzing trace with hash 23927998, now seen corresponding path program 1 times [2018-01-20 21:54:33,740 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:54:33,741 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:54:33,742 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,742 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:54:33,742 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:54:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:54:33,754 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:54:33,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:54:33,768 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:54:33,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 21:54:33,769 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 21:54:33,769 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 21:54:33,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:54:33,769 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-01-20 21:54:33,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:54:33,774 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2018-01-20 21:54:33,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 21:54:33,774 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-20 21:54:33,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:54:33,775 INFO L225 Difference]: With dead ends: 51 [2018-01-20 21:54:33,775 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:54:33,775 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:54:33,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:54:33,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:54:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:54:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:54:33,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-01-20 21:54:33,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:54:33,777 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:54:33,777 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 21:54:33,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:54:33,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:54:33,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:54:33 BoogieIcfgContainer [2018-01-20 21:54:33,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 21:54:33,781 INFO L168 Benchmark]: Toolchain (without parser) took 1015.33 ms. Allocated memory was 307.8 MB in the beginning and 469.8 MB in the end (delta: 162.0 MB). Free memory was 267.1 MB in the beginning and 429.6 MB in the end (delta: -162.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 21:54:33,782 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 307.8 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 21:54:33,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.45 ms. Allocated memory is still 307.8 MB. Free memory was 267.1 MB in the beginning and 258.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-01-20 21:54:33,783 INFO L168 Benchmark]: Boogie Preprocessor took 30.23 ms. Allocated memory is still 307.8 MB. Free memory was 258.0 MB in the beginning and 257.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-20 21:54:33,783 INFO L168 Benchmark]: RCFGBuilder took 223.29 ms. Allocated memory is still 307.8 MB. Free memory was 257.0 MB in the beginning and 242.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 5.3 GB. [2018-01-20 21:54:33,783 INFO L168 Benchmark]: TraceAbstraction took 577.00 ms. Allocated memory was 307.8 MB in the beginning and 469.8 MB in the end (delta: 162.0 MB). Free memory was 241.1 MB in the beginning and 429.6 MB in the end (delta: -188.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 21:54:33,786 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 307.8 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 178.45 ms. Allocated memory is still 307.8 MB. Free memory was 267.1 MB in the beginning and 258.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.23 ms. Allocated memory is still 307.8 MB. Free memory was 258.0 MB in the beginning and 257.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 223.29 ms. Allocated memory is still 307.8 MB. Free memory was 257.0 MB in the beginning and 242.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 577.00 ms. Allocated memory was 307.8 MB in the beginning and 469.8 MB in the end (delta: 162.0 MB). Free memory was 241.1 MB in the beginning and 429.6 MB in the end (delta: -188.6 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) * 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 4 procedures, 31 locations, 4 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=31occurred 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: [L27] int *A; [L28] int Alen = __VERIFIER_nondet_int(); [L29] int *B; [L30] int Blen = __VERIFIER_nondet_int(); [L31] int *D; VAL [Alen=0, Blen=0] [L32] CALL diff(A, Alen, B, Blen, D) VAL [\old(Alen)=0, \old(Blen)=0, A={7:3}, B={4:6}, D={2:5}] [L4] int k = 0; [L5] int i = 0; [L6] int l1 = Alen; [L7] int l2 = Blen; [L8] int found; VAL [\old(Alen)=0, \old(Blen)=0, A={7:3}, A={7:3}, Alen=0, B={4:6}, B={4:6}, Blen=0, D={2:5}, D={2:5}, i=0, k=0, l1=0, l2=0] [L9] COND FALSE, RET !(i < l1) VAL [\old(Alen)=0, \old(Blen)=0, A={7:3}, A={7:3}, Alen=0, B={4:6}, B={4:6}, Blen=0, D={2:5}, D={2:5}, i=0, k=0, l1=0, l2=0] [L32] diff(A, Alen, B, Blen, D) VAL [A={7:3}, Alen=0, B={4:6}, Blen=0, D={2:5}] [L33] return 0; - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 31 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 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: 2]: 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: diffErr0EnsuresViolation CFG has 4 procedures, 31 locations, 4 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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: 26]: 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 4 procedures, 31 locations, 4 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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/diff_usafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_21-54-33-795.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff_usafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_21-54-33-795.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff_usafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_21-54-33-795.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff_usafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_21-54-33-795.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff_usafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_21-54-33-795.csv Received shutdown request...