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_mostprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 03:32:22,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 03:32:22,782 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 03:32:22,799 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 03:32:22,799 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 03:32:22,800 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 03:32:22,801 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 03:32:22,803 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 03:32:22,805 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 03:32:22,806 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 03:32:22,807 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 03:32:22,807 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 03:32:22,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 03:32:22,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 03:32:22,813 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 03:32:22,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 03:32:22,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 03:32:22,822 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 03:32:22,824 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 03:32:22,825 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 03:32:22,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 03:32:22,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 03:32:22,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 03:32:22,834 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_mostprecise.epf [2018-01-21 03:32:22,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 03:32:22,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 03:32:22,847 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 03:32:22,847 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 03:32:22,847 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 03:32:22,848 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 03:32:22,848 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 03:32:22,848 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 03:32:22,848 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 03:32:22,849 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 03:32:22,849 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 03:32:22,849 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 03:32:22,850 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 03:32:22,850 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 03:32:22,850 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 03:32:22,850 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 03:32:22,850 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 03:32:22,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 03:32:22,851 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 03:32:22,851 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 03:32:22,852 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 03:32:22,852 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 03:32:22,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 03:32:22,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 03:32:22,852 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 03:32:22,853 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 03:32:22,853 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 03:32:22,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 03:32:22,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 03:32:22,853 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 03:32:22,854 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 03:32:22,854 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 03:32:22,854 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 03:32:22,854 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 03:32:22,854 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 03:32:22,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 03:32:22,855 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 03:32:22,857 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 03:32:22,858 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 03:32:22,858 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 03:32:22,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 03:32:22,930 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 03:32:22,936 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 03:32:22,938 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 03:32:22,938 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 03:32:22,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_true-valid-memsafety_true-termination.i [2018-01-21 03:32:23,089 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 03:32:23,093 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 03:32:23,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 03:32:23,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 03:32:23,100 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 03:32:23,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290110cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23, skipping insertion in model container [2018-01-21 03:32:23,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,119 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 03:32:23,133 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 03:32:23,250 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 03:32:23,276 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 03:32:23,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23 WrapperNode [2018-01-21 03:32:23,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 03:32:23,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 03:32:23,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 03:32:23,284 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 03:32:23,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (1/1) ... [2018-01-21 03:32:23,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 03:32:23,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 03:32:23,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 03:32:23,311 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 03:32:23,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (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 03:32:23,364 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 03:32:23,364 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 03:32:23,364 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 03:32:23,364 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 03:32:23,364 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 03:32:23,364 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 03:32:23,365 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 03:32:23,365 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 03:32:23,365 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 03:32:23,365 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 03:32:23,365 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 03:32:23,365 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 03:32:23,365 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 03:32:23,538 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 03:32:23,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 03:32:23 BoogieIcfgContainer [2018-01-21 03:32:23,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 03:32:23,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 03:32:23,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 03:32:23,543 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 03:32:23,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 03:32:23" (1/3) ... [2018-01-21 03:32:23,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcff7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 03:32:23, skipping insertion in model container [2018-01-21 03:32:23,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 03:32:23" (2/3) ... [2018-01-21 03:32:23,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcff7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 03:32:23, skipping insertion in model container [2018-01-21 03:32:23,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 03:32:23" (3/3) ... [2018-01-21 03:32:23,546 INFO L105 eAbstractionObserver]: Analyzing ICFG test-bitfields-1_true-valid-memsafety_true-termination.i [2018-01-21 03:32:23,553 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 03:32:23,560 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 03:32:23,603 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 03:32:23,604 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 03:32:23,604 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 03:32:23,604 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 03:32:23,604 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 03:32:23,604 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 03:32:23,604 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 03:32:23,604 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 03:32:23,605 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 03:32:23,620 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 03:32:23,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 03:32:23,626 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 03:32:23,627 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 03:32:23,627 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 03:32:23,633 INFO L82 PathProgramCache]: Analyzing trace with hash 76882, now seen corresponding path program 1 times [2018-01-21 03:32:23,636 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 03:32:23,690 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 03:32:23,690 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 03:32:23,690 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 03:32:23,690 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 03:32:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 03:32:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 03:32:23,747 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 03:32:23,754 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 03:32:23,759 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 03:32:23,759 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 03:32:23,759 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 03:32:23,759 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 03:32:23,759 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 03:32:23,760 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 03:32:23,760 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 03:32:23,760 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 03:32:23,760 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 03:32:23,761 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 03:32:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-21 03:32:23,762 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 03:32:23,762 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] [2018-01-21 03:32:23,762 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 03:32:23,763 INFO L82 PathProgramCache]: Analyzing trace with hash 892483675, now seen corresponding path program 1 times [2018-01-21 03:32:23,763 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 03:32:23,764 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 03:32:23,764 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 03:32:23,764 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 03:32:23,764 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 03:32:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 03:32:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 03:32:23,833 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 03:32:23,839 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 03:32:23,841 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 03:32:23,842 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 03:32:23,851 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 03:32:23,852 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 03:32:23,852 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 03:32:23,852 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 03:32:23,852 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 03:32:23,852 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 03:32:23,852 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 03:32:23,852 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 03:32:23,853 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 03:32:23,854 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-21 03:32:23,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-21 03:32:23,856 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 03:32:23,856 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] [2018-01-21 03:32:23,856 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 03:32:23,856 INFO L82 PathProgramCache]: Analyzing trace with hash 251207754, now seen corresponding path program 1 times [2018-01-21 03:32:23,856 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 03:32:23,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 03:32:23,858 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 03:32:23,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 03:32:23,858 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 03:32:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 03:32:23,894 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 03:32:24,164 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 03:32:24,166 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 03:32:24,167 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 03:32:24,167 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 03:32:24,169 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 03:32:24,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 03:32:24,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 03:32:24,247 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2018-01-21 03:32:24,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 03:32:24,439 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-01-21 03:32:24,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-21 03:32:24,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-01-21 03:32:24,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 03:32:24,449 INFO L225 Difference]: With dead ends: 59 [2018-01-21 03:32:24,449 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 03:32:24,452 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-21 03:32:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 03:32:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 03:32:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 03:32:24,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 03:32:24,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-01-21 03:32:24,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 03:32:24,483 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 03:32:24,483 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 03:32:24,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 03:32:24,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 03:32:24,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 03:32:24 BoogieIcfgContainer [2018-01-21 03:32:24,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 03:32:24,488 INFO L168 Benchmark]: Toolchain (without parser) took 1398.37 ms. Allocated memory was 304.6 MB in the beginning and 457.2 MB in the end (delta: 152.6 MB). Free memory was 263.9 MB in the beginning and 414.1 MB in the end (delta: -150.1 MB). Peak memory consumption was 2.4 MB. Max. memory is 5.3 GB. [2018-01-21 03:32:24,490 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 304.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 03:32:24,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.67 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 254.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-21 03:32:24,490 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 ms. Allocated memory is still 304.6 MB. Free memory is still 254.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 03:32:24,491 INFO L168 Benchmark]: RCFGBuilder took 229.34 ms. Allocated memory is still 304.6 MB. Free memory was 252.0 MB in the beginning and 239.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. [2018-01-21 03:32:24,491 INFO L168 Benchmark]: TraceAbstraction took 946.36 ms. Allocated memory was 304.6 MB in the beginning and 457.2 MB in the end (delta: 152.6 MB). Free memory was 239.4 MB in the beginning and 414.1 MB in the end (delta: -174.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 03:32:24,493 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 304.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 189.67 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 254.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.47 ms. Allocated memory is still 304.6 MB. Free memory is still 254.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 229.34 ms. Allocated memory is still 304.6 MB. Free memory was 252.0 MB in the beginning and 239.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 946.36 ms. Allocated memory was 304.6 MB in the beginning and 457.2 MB in the end (delta: 152.6 MB). Free memory was 239.4 MB in the beginning and 414.1 MB in the end (delta: -174.7 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) * 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 3 procedures, 32 locations, 3 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=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L22] struct A *p; [L23] EXPR, FCALL malloc(2) VAL [malloc(2)={7:0}] [L23] p = malloc(2) VAL [malloc(2)={7:0}, p={7:0}] [L24] FCALL p->a = 1 VAL [malloc(2)={7:0}, p={7:0}] [L25] EXPR, FCALL p->a VAL [malloc(2)={7:0}, p={7:0}, p->a=1] [L25] COND FALSE !(p->a != 1) [L28] FCALL p->b = 2 VAL [malloc(2)={7:0}, p={7:0}] [L29] EXPR, FCALL p->b VAL [malloc(2)={7:0}, p={7:0}, p->b=2] [L29] COND FALSE !(p->b != 2) [L32] FCALL p->c = 3 VAL [malloc(2)={7:0}, p={7:0}] [L33] EXPR, FCALL p->c VAL [malloc(2)={7:0}, p={7:0}, p->c=3] [L33] COND FALSE !(p->c != 3) [L36] FCALL p->d = 4 VAL [malloc(2)={7:0}, p={7:0}] [L37] EXPR, FCALL p->d VAL [malloc(2)={7:0}, p={7:0}, p->d=4] [L37] COND FALSE !(p->d != 4) [L41] FCALL free(p) - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 3 procedures, 32 locations, 3 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 24 NumberOfCodeBlocks, 24 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: 20]: 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 3 procedures, 32 locations, 3 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 36 SDslu, 9 SDs, 0 SdLazy, 58 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 4914 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/test-bitfields-1_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_03-32-24-502.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-1_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_03-32-24-502.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-1_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_03-32-24-502.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-1_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_03-32-24-502.csv Received shutdown request...