java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/stroeder1_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 23:23:53,580 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 23:23:53,581 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 23:23:53,596 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 23:23:53,596 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 23:23:53,597 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 23:23:53,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 23:23:53,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 23:23:53,602 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 23:23:53,603 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 23:23:53,604 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 23:23:53,604 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 23:23:53,605 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 23:23:53,606 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 23:23:53,607 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 23:23:53,610 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 23:23:53,612 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 23:23:53,614 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 23:23:53,615 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 23:23:53,616 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 23:23:53,619 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-20 23:23:53,624 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-20 23:23:53,632 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 23:23:53,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 23:23:53,633 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 23:23:53,633 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 23:23:53,634 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 23:23:53,634 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 23:23:53,634 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 23:23:53,634 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 23:23:53,634 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 23:23:53,634 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 23:23:53,634 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 23:23:53,635 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 23:23:53,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 23:23:53,636 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 23:23:53,636 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 23:23:53,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 23:23:53,636 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 23:23:53,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 23:23:53,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 23:23:53,637 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 23:23:53,637 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 23:23:53,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 23:23:53,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 23:23:53,637 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 23:23:53,637 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-20 23:23:53,638 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 23:23:53,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 23:23:53,638 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 23:23:53,638 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-20 23:23:53,639 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 23:23:53,639 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 23:23:53,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 23:23:53,681 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 23:23:53,684 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 23:23:53,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 23:23:53,685 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 23:23:53,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/stroeder1_unsafe_false-valid-deref.i [2018-01-20 23:23:53,793 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 23:23:53,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 23:23:53,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 23:23:53,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 23:23:53,803 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 23:23:53,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a992d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53, skipping insertion in model container [2018-01-20 23:23:53,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,821 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:23:53,834 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:23:53,948 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:23:53,963 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:23:53,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53 WrapperNode [2018-01-20 23:23:53,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 23:23:53,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 23:23:53,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 23:23:53,969 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 23:23:53,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (1/1) ... [2018-01-20 23:23:53,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 23:23:53,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 23:23:53,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 23:23:53,998 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 23:23:53,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (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 23:23:54,044 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 23:23:54,044 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 23:23:54,045 INFO L136 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-01-20 23:23:54,045 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 23:23:54,045 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 23:23:54,046 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 23:23:54,220 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 23:23:54,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:23:54 BoogieIcfgContainer [2018-01-20 23:23:54,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 23:23:54,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 23:23:54,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 23:23:54,223 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 23:23:54,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 11:23:53" (1/3) ... [2018-01-20 23:23:54,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f13b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:23:54, skipping insertion in model container [2018-01-20 23:23:54,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:53" (2/3) ... [2018-01-20 23:23:54,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f13b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:23:54, skipping insertion in model container [2018-01-20 23:23:54,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:23:54" (3/3) ... [2018-01-20 23:23:54,226 INFO L105 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe_false-valid-deref.i [2018-01-20 23:23:54,234 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 23:23:54,239 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-20 23:23:54,281 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:23:54,281 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:23:54,282 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:23:54,282 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:23:54,282 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:23:54,282 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:23:54,282 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:23:54,282 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 23:23:54,283 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:23:54,297 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-20 23:23:54,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 23:23:54,302 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:54,302 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 23:23:54,303 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 23:23:54,306 INFO L82 PathProgramCache]: Analyzing trace with hash 60545, now seen corresponding path program 1 times [2018-01-20 23:23:54,308 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:54,355 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,355 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:54,355 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,356 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:23:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:23:54,410 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:23:54,416 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:23:54,421 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:23:54,422 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:23:54,422 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:23:54,422 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:23:54,422 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:23:54,422 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:23:54,422 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:23:54,422 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == sumOfThirdBytesErr0EnsuresViolation======== [2018-01-20 23:23:54,423 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:23:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-20 23:23:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-20 23:23:54,425 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:54,425 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:23:54,425 INFO L371 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr0EnsuresViolation]=== [2018-01-20 23:23:54,425 INFO L82 PathProgramCache]: Analyzing trace with hash -751378949, now seen corresponding path program 1 times [2018-01-20 23:23:54,425 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:54,426 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,426 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:54,426 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,426 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:54,446 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:23:54,471 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 23:23:54,472 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:23:54,472 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:23:54,472 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:23:54,474 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 23:23:54,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 23:23:54,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 23:23:54,487 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-01-20 23:23:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:23:54,512 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-01-20 23:23:54,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 23:23:54,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-01-20 23:23:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:23:54,522 INFO L225 Difference]: With dead ends: 34 [2018-01-20 23:23:54,523 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:23:54,526 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 23:23:54,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:23:54,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:23:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:23:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:23:54,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-01-20 23:23:54,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:23:54,631 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:23:54,631 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 23:23:54,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:23:54,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:23:54,634 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:23:54,634 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:23:54,634 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:23:54,634 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:23:54,635 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:23:54,635 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:23:54,635 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:23:54,635 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 23:23:54,635 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:23:54,636 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-20 23:23:54,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-20 23:23:54,637 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:54,637 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:23:54,637 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:23:54,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1975658589, now seen corresponding path program 1 times [2018-01-20 23:23:54,637 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:54,638 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,638 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:54,639 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,639 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:54,647 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:23:54,660 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 23:23:54,661 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:23:54,661 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:23:54,661 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:23:54,661 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 23:23:54,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 23:23:54,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 23:23:54,662 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-01-20 23:23:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:23:54,665 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-01-20 23:23:54,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 23:23:54,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-01-20 23:23:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:23:54,670 INFO L225 Difference]: With dead ends: 34 [2018-01-20 23:23:54,670 INFO L226 Difference]: Without dead ends: 21 [2018-01-20 23:23:54,670 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 23:23:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-01-20 23:23:54,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-01-20 23:23:54,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-01-20 23:23:54,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-01-20 23:23:54,682 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 16 [2018-01-20 23:23:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:23:54,682 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-01-20 23:23:54,682 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 23:23:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-01-20 23:23:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-20 23:23:54,683 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:54,683 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:23:54,684 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:23:54,684 INFO L82 PathProgramCache]: Analyzing trace with hash -194592, now seen corresponding path program 1 times [2018-01-20 23:23:54,684 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:54,685 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,685 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:54,685 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,685 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:23:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:23:54,714 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:23:54,719 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:23:54,720 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:23:54,721 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:23:54,721 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:23:54,728 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:23:54,729 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:23:54,729 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:23:54,729 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:23:54,729 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:23:54,729 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:23:54,729 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:23:54,729 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 23:23:54,729 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:23:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-20 23:23:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-20 23:23:54,731 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:54,731 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:23:54,731 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 23:23:54,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1039283789, now seen corresponding path program 1 times [2018-01-20 23:23:54,731 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:54,732 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,732 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:54,732 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:54,732 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:54,740 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:23:54,751 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 23:23:54,752 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:23:54,752 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:23:54,752 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:23:54,752 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 23:23:54,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 23:23:54,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 23:23:54,753 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-01-20 23:23:54,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:23:54,755 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-01-20 23:23:54,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 23:23:54,755 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-01-20 23:23:54,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:23:54,756 INFO L225 Difference]: With dead ends: 34 [2018-01-20 23:23:54,756 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:23:54,756 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 23:23:54,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:23:54,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:23:54,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:23:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:23:54,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-01-20 23:23:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:23:54,757 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:23:54,757 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 23:23:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:23:54,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:23:54,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 11:23:54 BoogieIcfgContainer [2018-01-20 23:23:54,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 23:23:54,760 INFO L168 Benchmark]: Toolchain (without parser) took 966.76 ms. Allocated memory was 295.2 MB in the beginning and 450.9 MB in the end (delta: 155.7 MB). Free memory was 256.1 MB in the beginning and 410.7 MB in the end (delta: -154.7 MB). Peak memory consumption was 1.1 MB. Max. memory is 5.3 GB. [2018-01-20 23:23:54,761 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 295.2 MB. Free memory is still 260.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:23:54,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.05 ms. Allocated memory is still 295.2 MB. Free memory was 256.1 MB in the beginning and 246.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-20 23:23:54,762 INFO L168 Benchmark]: Boogie Preprocessor took 28.39 ms. Allocated memory is still 295.2 MB. Free memory is still 246.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:23:54,762 INFO L168 Benchmark]: RCFGBuilder took 222.81 ms. Allocated memory is still 295.2 MB. Free memory was 246.1 MB in the beginning and 233.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-20 23:23:54,762 INFO L168 Benchmark]: TraceAbstraction took 538.23 ms. Allocated memory was 295.2 MB in the beginning and 450.9 MB in the end (delta: 155.7 MB). Free memory was 231.2 MB in the beginning and 410.7 MB in the end (delta: -179.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:23:54,764 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 295.2 MB. Free memory is still 260.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 171.05 ms. Allocated memory is still 295.2 MB. Free memory was 256.1 MB in the beginning and 246.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.39 ms. Allocated memory is still 295.2 MB. Free memory is still 246.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 222.81 ms. Allocated memory is still 295.2 MB. Free memory was 246.1 MB in the beginning and 233.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 538.23 ms. Allocated memory was 295.2 MB in the beginning and 450.9 MB in the end (delta: 155.7 MB). Free memory was 231.2 MB in the beginning and 410.7 MB in the end (delta: -179.6 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, 25 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=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 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: sumOfThirdBytesErr0EnsuresViolation CFG has 4 procedures, 25 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L15] int* numbers; [L16] int array_size = __VERIFIER_nondet_int(); [L17] CALL, EXPR sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=0, numbers={3:2}] [L4] int i, sum; [L5] char* p; [L6] sum = 0 [L7] i = 0 VAL [\old(array_size)=0, array_size=0, i=0, numbers={3:2}, numbers={3:2}, sum=0] [L7] COND FALSE !(i < array_size) VAL [\old(array_size)=0, array_size=0, i=0, numbers={3:2}, numbers={3:2}, sum=0] [L12] RET return sum; VAL [\old(array_size)=0, \result=0, array_size=0, i=0, numbers={3:2}, numbers={3:2}, sum=0] [L17] EXPR sumOfThirdBytes(numbers, array_size) VAL [array_size=0, numbers={3:2}, sumOfThirdBytes(numbers, array_size)=0] [L17] return sumOfThirdBytes(numbers, array_size); - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 25 locations, 4 error locations. UNSAFE Result, 0.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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: 14]: 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, 25 locations, 4 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 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/stroeder1_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_23-23-54-773.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_23-23-54-773.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_23-23-54-773.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_23-23-54-773.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_23-23-54-773.csv Received shutdown request...