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 0.1.23-47db877 [2018-01-23 14:20:37,039 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 14:20:37,041 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 14:20:37,063 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 14:20:37,064 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 14:20:37,065 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 14:20:37,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 14:20:37,068 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 14:20:37,071 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 14:20:37,072 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 14:20:37,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 14:20:37,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 14:20:37,074 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 14:20:37,076 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 14:20:37,077 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 14:20:37,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 14:20:37,083 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 14:20:37,085 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 14:20:37,086 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 14:20:37,088 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 14:20:37,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 14:20:37,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 14:20:37,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 14:20:37,097 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 [2018-01-23 14:20:37,107 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 14:20:37,108 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 14:20:37,109 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 14:20:37,109 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 14:20:37,109 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 14:20:37,109 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 14:20:37,109 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 14:20:37,110 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 14:20:37,110 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 14:20:37,110 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 14:20:37,110 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 14:20:37,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 14:20:37,110 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 14:20:37,111 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 14:20:37,111 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 14:20:37,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 14:20:37,111 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 14:20:37,111 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 14:20:37,111 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 14:20:37,111 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 14:20:37,111 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 14:20:37,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 14:20:37,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 14:20:37,112 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 14:20:37,112 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 14:20:37,113 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 14:20:37,113 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 14:20:37,113 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 14:20:37,113 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 14:20:37,113 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 14:20:37,113 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 14:20:37,113 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 14:20:37,114 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 14:20:37,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 14:20:37,114 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 14:20:37,114 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 14:20:37,115 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 14:20:37,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 14:20:37,160 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 14:20:37,163 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 14:20:37,164 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 14:20:37,164 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 14:20:37,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/diff_usafe_false-valid-deref.i [2018-01-23 14:20:37,275 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 14:20:37,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 14:20:37,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 14:20:37,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 14:20:37,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 14:20:37,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17848a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37, skipping insertion in model container [2018-01-23 14:20:37,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,303 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:20:37,323 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:20:37,446 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:20:37,462 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:20:37,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37 WrapperNode [2018-01-23 14:20:37,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 14:20:37,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 14:20:37,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 14:20:37,468 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 14:20:37,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (1/1) ... [2018-01-23 14:20:37,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 14:20:37,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 14:20:37,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 14:20:37,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 14:20:37,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (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 [2018-01-23 14:20:37,565 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 14:20:37,566 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 14:20:37,566 INFO L136 BoogieDeclarations]: Found implementation of procedure diff [2018-01-23 14:20:37,566 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 14:20:37,566 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-23 14:20:37,566 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-23 14:20:37,566 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 14:20:37,567 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 14:20:37,567 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 14:20:37,567 INFO L128 BoogieDeclarations]: Found specification of procedure diff [2018-01-23 14:20:37,567 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 14:20:37,567 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 14:20:37,567 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 14:20:37,748 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 14:20:37,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:20:37 BoogieIcfgContainer [2018-01-23 14:20:37,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 14:20:37,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-23 14:20:37,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-23 14:20:37,751 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-23 14:20:37,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 02:20:37" (1/3) ... [2018-01-23 14:20:37,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144399e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:20:37, skipping insertion in model container [2018-01-23 14:20:37,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:37" (2/3) ... [2018-01-23 14:20:37,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144399e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:20:37, skipping insertion in model container [2018-01-23 14:20:37,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:20:37" (3/3) ... [2018-01-23 14:20:37,754 INFO L105 eAbstractionObserver]: Analyzing ICFG diff_usafe_false-valid-deref.i [2018-01-23 14:20:37,762 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-23 14:20:37,768 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-23 14:20:37,805 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:37,806 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:37,806 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:37,806 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:37,806 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:37,807 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:37,807 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:37,807 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-23 14:20:37,808 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:37,827 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-23 14:20:37,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-23 14:20:37,834 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:37,835 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-23 14:20:37,835 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-23 14:20:37,840 INFO L82 PathProgramCache]: Analyzing trace with hash 86492, now seen corresponding path program 1 times [2018-01-23 14:20:37,842 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:37,843 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:37,901 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:37,901 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:37,901 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:37,958 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:20:37,964 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:37,970 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:37,970 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:37,970 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:37,971 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:37,971 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:37,971 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:37,971 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:37,971 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-23 14:20:37,971 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-23 14:20:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-23 14:20:37,974 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:37,975 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:20:37,975 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:20:37,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1519970565, now seen corresponding path program 1 times [2018-01-23 14:20:37,975 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:37,975 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:37,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:37,976 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:37,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:38,007 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:38,041 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:38,042 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:20:38,043 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:20:38,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:20:38,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:38,056 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-01-23 14:20:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:38,075 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2018-01-23 14:20:38,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:20:38,076 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-01-23 14:20:38,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:38,090 INFO L225 Difference]: With dead ends: 51 [2018-01-23 14:20:38,090 INFO L226 Difference]: Without dead ends: 27 [2018-01-23 14:20:38,093 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 [2018-01-23 14:20:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-23 14:20:38,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-01-23 14:20:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-23 14:20:38,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-01-23 14:20:38,198 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 15 [2018-01-23 14:20:38,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:38,198 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-01-23 14:20:38,199 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:20:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-01-23 14:20:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-23 14:20:38,199 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:38,199 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:20:38,200 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:20:38,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1810228603, now seen corresponding path program 1 times [2018-01-23 14:20:38,200 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:38,200 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:38,201 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:38,201 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:38,201 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:38,239 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:20:38,246 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:38,248 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:38,249 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:38,249 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:38,257 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:38,257 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:38,257 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:38,257 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:38,257 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:38,257 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:38,257 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:38,257 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == diffErr0EnsuresViolation======== [2018-01-23 14:20:38,257 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-23 14:20:38,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-23 14:20:38,260 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:38,260 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:20:38,260 INFO L371 AbstractCegarLoop]: === Iteration 1 === [diffErr0EnsuresViolation]=== [2018-01-23 14:20:38,261 INFO L82 PathProgramCache]: Analyzing trace with hash 450243589, now seen corresponding path program 1 times [2018-01-23 14:20:38,261 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:38,261 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:38,262 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:38,263 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:38,263 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:38,277 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:38,291 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:38,292 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:20:38,292 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:20:38,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:20:38,292 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:38,292 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-01-23 14:20:38,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:38,296 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2018-01-23 14:20:38,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:20:38,296 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-01-23 14:20:38,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:38,296 INFO L225 Difference]: With dead ends: 51 [2018-01-23 14:20:38,297 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:20:38,297 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 [2018-01-23 14:20:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:20:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:20:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:20:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:20:38,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-01-23 14:20:38,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:38,298 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:20:38,298 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:20:38,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:20:38,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:20:38,300 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:38,300 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:38,300 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:38,301 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:38,301 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:38,301 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:38,301 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:38,301 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-23 14:20:38,301 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-23 14:20:38,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-23 14:20:38,303 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:38,303 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:20:38,303 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-23 14:20:38,303 INFO L82 PathProgramCache]: Analyzing trace with hash 23927998, now seen corresponding path program 1 times [2018-01-23 14:20:38,303 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:38,303 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:38,304 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:38,304 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:38,304 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:38,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:38,325 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:38,326 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:20:38,326 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:20:38,326 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:20:38,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:38,327 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-01-23 14:20:38,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:38,331 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2018-01-23 14:20:38,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:20:38,331 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-23 14:20:38,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:38,332 INFO L225 Difference]: With dead ends: 51 [2018-01-23 14:20:38,332 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:20:38,333 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 [2018-01-23 14:20:38,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:20:38,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:20:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:20:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:20:38,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-01-23 14:20:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:38,334 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:20:38,334 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:20:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:20:38,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:20:38,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 02:20:38 BoogieIcfgContainer [2018-01-23 14:20:38,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-23 14:20:38,338 INFO L168 Benchmark]: Toolchain (without parser) took 1062.53 ms. Allocated memory was 305.7 MB in the beginning and 467.7 MB in the end (delta: 162.0 MB). Free memory was 265.0 MB in the beginning and 427.4 MB in the end (delta: -162.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:20:38,339 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 305.7 MB. Free memory is still 269.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:20:38,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.63 ms. Allocated memory is still 305.7 MB. Free memory was 265.0 MB in the beginning and 255.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-01-23 14:20:38,340 INFO L168 Benchmark]: Boogie Preprocessor took 41.18 ms. Allocated memory is still 305.7 MB. Free memory was 255.8 MB in the beginning and 254.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-23 14:20:38,340 INFO L168 Benchmark]: RCFGBuilder took 238.95 ms. Allocated memory is still 305.7 MB. Free memory was 254.8 MB in the beginning and 239.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 5.3 GB. [2018-01-23 14:20:38,340 INFO L168 Benchmark]: TraceAbstraction took 588.21 ms. Allocated memory was 305.7 MB in the beginning and 467.7 MB in the end (delta: 162.0 MB). Free memory was 239.0 MB in the beginning and 427.4 MB in the end (delta: -188.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:20:38,343 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 305.7 MB. Free memory is still 269.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 186.63 ms. Allocated memory is still 305.7 MB. Free memory was 265.0 MB in the beginning and 255.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.18 ms. Allocated memory is still 305.7 MB. Free memory was 255.8 MB in the beginning and 254.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 238.95 ms. Allocated memory is still 305.7 MB. Free memory was 254.8 MB in the beginning and 239.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 588.21 ms. Allocated memory was 305.7 MB in the beginning and 467.7 MB in the end (delta: 162.0 MB). Free memory was 239.0 MB in the beginning and 427.4 MB in the end (delta: -188.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - 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-0-2018-01-23_14-20-38-351.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-0-2018-01-23_14-20-38-351.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-1-2018-01-23_14-20-38-351.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-2-2018-01-23_14-20-38-351.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-3-2018-01-23_14-20-38-351.csv Received shutdown request...