java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/array-memsafety/knapsack_alloca_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 05:29:29,896 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 05:29:29,898 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 05:29:29,914 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 05:29:29,914 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 05:29:29,915 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 05:29:29,916 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 05:29:29,918 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 05:29:29,921 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 05:29:29,921 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 05:29:29,922 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 05:29:29,923 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 05:29:29,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 05:29:29,924 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 05:29:29,925 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 05:29:29,927 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 05:29:29,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 05:29:29,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 05:29:29,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 05:29:29,934 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 05:29:29,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 05:29:29,941 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 05:29:29,942 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 05:29:29,942 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-21 05:29:29,952 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 05:29:29,953 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 05:29:29,953 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 05:29:29,954 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 05:29:29,954 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 05:29:29,954 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 05:29:29,954 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 05:29:29,954 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 05:29:29,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 05:29:29,955 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 05:29:29,955 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 05:29:29,956 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 05:29:29,956 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 05:29:29,956 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 05:29:29,956 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 05:29:29,956 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 05:29:29,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 05:29:29,957 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 05:29:29,957 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 05:29:29,957 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 05:29:29,957 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 05:29:29,957 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 05:29:29,958 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 05:29:29,958 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 05:29:29,958 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 05:29:29,958 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 05:29:29,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 05:29:29,959 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 05:29:29,959 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 05:29:29,959 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 05:29:29,959 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 05:29:29,959 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 05:29:29,959 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 05:29:29,960 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 05:29:29,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 05:29:29,960 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 05:29:29,960 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 05:29:29,961 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 05:29:29,961 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 05:29:29,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 05:29:30,007 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 05:29:30,010 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 05:29:30,011 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 05:29:30,011 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 05:29:30,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/knapsack_alloca_unsafe_false-valid-deref.i [2018-01-21 05:29:30,178 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 05:29:30,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 05:29:30,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 05:29:30,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 05:29:30,192 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 05:29:30,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e99cb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30, skipping insertion in model container [2018-01-21 05:29:30,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,219 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:29:30,262 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:29:30,388 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:29:30,406 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:29:30,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30 WrapperNode [2018-01-21 05:29:30,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 05:29:30,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 05:29:30,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 05:29:30,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 05:29:30,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... [2018-01-21 05:29:30,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 05:29:30,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 05:29:30,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 05:29:30,448 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 05:29:30,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 05:29:30,500 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 05:29:30,500 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 05:29:30,500 INFO L136 BoogieDeclarations]: Found implementation of procedure knapsack [2018-01-21 05:29:30,500 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 05:29:30,500 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure knapsack [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 05:29:30,501 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 05:29:30,747 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 05:29:30,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:29:30 BoogieIcfgContainer [2018-01-21 05:29:30,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 05:29:30,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 05:29:30,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 05:29:30,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 05:29:30,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 05:29:30" (1/3) ... [2018-01-21 05:29:30,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f614061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:29:30, skipping insertion in model container [2018-01-21 05:29:30,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:30" (2/3) ... [2018-01-21 05:29:30,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f614061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:29:30, skipping insertion in model container [2018-01-21 05:29:30,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:29:30" (3/3) ... [2018-01-21 05:29:30,757 INFO L105 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe_false-valid-deref.i [2018-01-21 05:29:30,765 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 05:29:30,771 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 05:29:30,826 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:29:30,826 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:29:30,826 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:29:30,826 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:29:30,827 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:29:30,827 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:29:30,827 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:29:30,827 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 05:29:30,828 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:29:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-01-21 05:29:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 05:29:30,867 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:30,868 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 05:29:30,869 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 05:29:30,874 INFO L82 PathProgramCache]: Analyzing trace with hash 118205, now seen corresponding path program 1 times [2018-01-21 05:29:30,877 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:30,936 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:30,937 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:30,937 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:30,937 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:29:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:29:30,991 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 05:29:30,997 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 05:29:31,004 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:29:31,004 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:29:31,004 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:29:31,004 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:29:31,005 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:29:31,005 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:29:31,005 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:29:31,005 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == knapsackErr0EnsuresViolation======== [2018-01-21 05:29:31,005 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:29:31,007 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-01-21 05:29:31,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-21 05:29:31,009 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:31,009 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:29:31,009 INFO L371 AbstractCegarLoop]: === Iteration 1 === [knapsackErr0EnsuresViolation]=== [2018-01-21 05:29:31,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1365807540, now seen corresponding path program 1 times [2018-01-21 05:29:31,010 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:31,011 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,011 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:31,011 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,011 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:29:31,056 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:29:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:29:31,112 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:29:31,113 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 05:29:31,113 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:29:31,115 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 05:29:31,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 05:29:31,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:29:31,130 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-01-21 05:29:31,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:29:31,230 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2018-01-21 05:29:31,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 05:29:31,231 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-01-21 05:29:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:29:31,238 INFO L225 Difference]: With dead ends: 92 [2018-01-21 05:29:31,238 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 05:29:31,241 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 [2018-01-21 05:29:31,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 05:29:31,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 05:29:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 05:29:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 05:29:31,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-01-21 05:29:31,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:29:31,262 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 05:29:31,262 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 05:29:31,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 05:29:31,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 05:29:31,264 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:29:31,265 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:29:31,265 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:29:31,265 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:29:31,265 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:29:31,265 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:29:31,265 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:29:31,265 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 05:29:31,265 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:29:31,267 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-01-21 05:29:31,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-21 05:29:31,268 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:31,268 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:29:31,268 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:29:31,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1369908330, now seen corresponding path program 1 times [2018-01-21 05:29:31,268 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:31,269 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,269 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:31,270 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,270 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:29:31,294 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:29:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:29:31,331 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:29:31,331 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 05:29:31,331 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:29:31,332 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 05:29:31,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 05:29:31,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:29:31,332 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-01-21 05:29:31,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:29:31,339 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2018-01-21 05:29:31,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 05:29:31,339 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 33 [2018-01-21 05:29:31,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:29:31,343 INFO L225 Difference]: With dead ends: 92 [2018-01-21 05:29:31,343 INFO L226 Difference]: Without dead ends: 52 [2018-01-21 05:29:31,344 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 [2018-01-21 05:29:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-01-21 05:29:31,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-01-21 05:29:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-21 05:29:31,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-01-21 05:29:31,358 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 33 [2018-01-21 05:29:31,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:29:31,359 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-01-21 05:29:31,359 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 05:29:31,359 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-01-21 05:29:31,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-21 05:29:31,361 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:31,361 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:29:31,361 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:29:31,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1841804872, now seen corresponding path program 1 times [2018-01-21 05:29:31,361 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:31,362 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,363 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:31,363 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,363 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:29:31,391 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:29:31,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:29:31,496 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:29:31,496 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 05:29:31,496 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:29:31,498 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 05:29:31,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 05:29:31,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 05:29:31,499 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-01-21 05:29:31,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:29:31,613 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2018-01-21 05:29:31,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 05:29:31,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-01-21 05:29:31,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:29:31,615 INFO L225 Difference]: With dead ends: 86 [2018-01-21 05:29:31,616 INFO L226 Difference]: Without dead ends: 71 [2018-01-21 05:29:31,617 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 05:29:31,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-01-21 05:29:31,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2018-01-21 05:29:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-21 05:29:31,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-01-21 05:29:31,625 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 34 [2018-01-21 05:29:31,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:29:31,626 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-01-21 05:29:31,626 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 05:29:31,626 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-01-21 05:29:31,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-21 05:29:31,627 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:31,628 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:29:31,628 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:29:31,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1329272689, now seen corresponding path program 1 times [2018-01-21 05:29:31,628 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:31,629 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,629 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:31,630 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:31,630 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:29:31,650 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:29:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:29:31,734 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:29:31,734 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:29:31,735 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-01-21 05:29:31,737 INFO L201 CegarAbsIntRunner]: [0], [1], [3], [7], [10], [12], [16], [19], [49], [53], [58], [59], [64], [68], [72], [73], [74], [75], [76], [77], [78], [79], [81], [82], [83], [84], [85], [86], [87], [88], [89], [90], [92], [93], [94], [95], [96], [97] [2018-01-21 05:29:31,800 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:29:31,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 05:30:42,234 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 05:30:42,235 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 05:30:42,235 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 05:30:42,236 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:30:42,236 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 05:30:42,242 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:42,243 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 05:30:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:42,297 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 05:30:42,303 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 05:30:42,304 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:30:42,307 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:30:42,307 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:30:42,307 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:30:42,307 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:30:42,307 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:30:42,307 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:30:42,307 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:30:42,308 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 05:30:42,308 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:30:42,309 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-01-21 05:30:42,310 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:30:42,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 05:30:42 BoogieIcfgContainer [2018-01-21 05:30:42,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 05:30:42,312 INFO L168 Benchmark]: Toolchain (without parser) took 72133.24 ms. Allocated memory was 302.5 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 262.4 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 254.4 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:42,314 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 05:30:42,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.76 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 251.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:42,315 INFO L168 Benchmark]: Boogie Preprocessor took 32.95 ms. Allocated memory is still 302.5 MB. Free memory was 251.3 MB in the beginning and 249.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:42,315 INFO L168 Benchmark]: RCFGBuilder took 300.77 ms. Allocated memory is still 302.5 MB. Free memory was 249.3 MB in the beginning and 229.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:42,315 INFO L168 Benchmark]: TraceAbstraction took 71561.72 ms. Allocated memory was 302.5 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 229.2 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 221.2 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:42,317 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 229.76 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 251.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.95 ms. Allocated memory is still 302.5 MB. Free memory was 251.3 MB in the beginning and 249.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 300.77 ms. Allocated memory is still 302.5 MB. Free memory was 249.3 MB in the beginning and 229.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 71561.72 ms. Allocated memory was 302.5 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 229.2 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 221.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * 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, 56 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=56occurred 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: 540]: 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: knapsackErr0EnsuresViolation CFG has 4 procedures, 56 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 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=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 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 - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 56 locations, 4 error locations. TIMEOUT Result, 71.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 106 SDtfs, 33 SDslu, 113 SDs, 0 SdLazy, 45 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 70.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 3301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 554]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 554). Cancelled while IsEmpty was searching accepting run (input had 56 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 56 locations, 4 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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: 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/knapsack_alloca_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_05-30-42-324.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/knapsack_alloca_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_05-30-42-324.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/knapsack_alloca_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_05-30-42-324.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/knapsack_alloca_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_05-30-42-324.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/knapsack_alloca_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_05-30-42-324.csv Completed graceful shutdown