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_smtcomp.epf -i ../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i
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This is Ultimate 0.1.23-2f49842
[2018-01-21 10:42:19,765 INFO L170 SettingsManager]: Resetting all preferences to default values...
[2018-01-21 10:42:19,767 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values
[2018-01-21 10:42:19,783 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-01-21 10:42:19,783 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-01-21 10:42:19,784 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-01-21 10:42:19,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-01-21 10:42:19,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values
[2018-01-21 10:42:19,789 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-01-21 10:42:19,790 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-01-21 10:42:19,791 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-01-21 10:42:19,791 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-01-21 10:42:19,792 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-01-21 10:42:19,793 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-01-21 10:42:19,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-01-21 10:42:19,797 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-01-21 10:42:19,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
[2018-01-21 10:42:19,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-01-21 10:42:19,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-01-21 10:42:19,804 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-01-21 10:42:19,807 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-01-21 10:42:19,807 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-01-21 10:42:19,807 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-01-21 10:42:19,808 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2018-01-21 10:42:19,810 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-01-21 10:42:19,811 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values
[2018-01-21 10:42:19,811 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring...
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[2018-01-21 10:42:19,813 INFO L181 SettingsManager]: Finished resetting all preferences to default values...
[2018-01-21 10:42:19,813 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_smtcomp.epf
[2018-01-21 10:42:19,822 INFO L110 SettingsManager]: Loading preferences was successful
[2018-01-21 10:42:19,822 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-01-21 10:42:19,823 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-01-21 10:42:19,823 INFO L133 SettingsManager]: * to procedures, called more than once=true
[2018-01-21 10:42:19,823 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-01-21 10:42:19,823 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain
[2018-01-21 10:42:19,823 INFO L133 SettingsManager]: * Precise comparison operator=true
[2018-01-21 10:42:19,824 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2018-01-21 10:42:19,824 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-01-21 10:42:19,824 INFO L133 SettingsManager]: * sizeof long=4
[2018-01-21 10:42:19,824 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2018-01-21 10:42:19,824 INFO L133 SettingsManager]: * Check allocation purity=true
[2018-01-21 10:42:19,825 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-01-21 10:42:19,825 INFO L133 SettingsManager]: * sizeof POINTER=4
[2018-01-21 10:42:19,825 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-01-21 10:42:19,825 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2018-01-21 10:42:19,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-01-21 10:42:19,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2018-01-21 10:42:19,825 INFO L133 SettingsManager]: * sizeof long double=12
[2018-01-21 10:42:19,826 INFO L133 SettingsManager]: * Check if freed pointer was valid=false
[2018-01-21 10:42:19,826 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2018-01-21 10:42:19,826 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-01-21 10:42:19,826 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-01-21 10:42:19,826 INFO L133 SettingsManager]: * To the following directory=./dump/
[2018-01-21 10:42:19,826 INFO L133 SettingsManager]: * Add additional assume for each assert=false
[2018-01-21 10:42:19,827 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode
[2018-01-21 10:42:19,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-01-21 10:42:19,827 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-01-21 10:42:19,827 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK
[2018-01-21 10:42:19,827 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2018-01-21 10:42:19,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-01-21 10:42:19,828 INFO L133 SettingsManager]: * Stop after first violation was found=false
[2018-01-21 10:42:19,828 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN
[2018-01-21 10:42:19,828 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2018-01-21 10:42:19,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-01-21 10:42:19,828 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-01-21 10:42:19,828 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
[2018-01-21 10:42:19,829 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2018-01-21 10:42:19,829 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR
[2018-01-21 10:42:19,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-01-21 10:42:19,873 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized
[2018-01-21 10:42:19,876 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected.
[2018-01-21 10:42:19,878 INFO L271 PluginConnector]: Initializing CDTParser...
[2018-01-21 10:42:19,878 INFO L276 PluginConnector]: CDTParser initialized
[2018-01-21 10:42:19,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i
[2018-01-21 10:42:19,984 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-01-21 10:42:19,989 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2018-01-21 10:42:19,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-01-21 10:42:19,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-01-21 10:42:19,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized
[2018-01-21 10:42:19,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:42:19" (1/1) ...
[2018-01-21 10:42:19,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f2d9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:19, skipping insertion in model container
[2018-01-21 10:42:19,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:42:19" (1/1) ...
[2018-01-21 10:42:20,011 INFO L153 Dispatcher]: Using SV-COMP mode
[2018-01-21 10:42:20,025 INFO L153 Dispatcher]: Using SV-COMP mode
[2018-01-21 10:42:20,137 INFO L450 PostProcessor]: Settings: Checked method=main
[2018-01-21 10:42:20,154 INFO L450 PostProcessor]: Settings: Checked method=main
[2018-01-21 10:42:20,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20 WrapperNode
[2018-01-21 10:42:20,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-01-21 10:42:20,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-01-21 10:42:20,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-01-21 10:42:20,160 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-01-21 10:42:20,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (1/1) ...
[2018-01-21 10:42:20,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (1/1) ...
[2018-01-21 10:42:20,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (1/1) ...
[2018-01-21 10:42:20,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (1/1) ...
[2018-01-21 10:42:20,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (1/1) ...
[2018-01-21 10:42:20,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (1/1) ...
[2018-01-21 10:42:20,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (1/1) ...
[2018-01-21 10:42:20,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-01-21 10:42:20,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-01-21 10:42:20,199 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-01-21 10:42:20,199 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-01-21 10:42:20,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (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 10:42:20,261 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-01-21 10:42:20,261 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-01-21 10:42:20,261 INFO L136 BoogieDeclarations]: Found implementation of procedure main
[2018-01-21 10:42:20,261 INFO L128 BoogieDeclarations]: Found specification of procedure write~int
[2018-01-21 10:42:20,262 INFO L128 BoogieDeclarations]: Found specification of procedure read~int
[2018-01-21 10:42:20,262 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free
[2018-01-21 10:42:20,262 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2018-01-21 10:42:20,262 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc
[2018-01-21 10:42:20,262 INFO L128 BoogieDeclarations]: Found specification of procedure malloc
[2018-01-21 10:42:20,262 INFO L128 BoogieDeclarations]: Found specification of procedure free
[2018-01-21 10:42:20,263 INFO L128 BoogieDeclarations]: Found specification of procedure main
[2018-01-21 10:42:20,263 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-01-21 10:42:20,263 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-01-21 10:42:20,451 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-01-21 10:42:20,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:42:20 BoogieIcfgContainer
[2018-01-21 10:42:20,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-01-21 10:42:20,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-01-21 10:42:20,452 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2018-01-21 10:42:20,454 INFO L276 PluginConnector]: TraceAbstraction initialized
[2018-01-21 10:42:20,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 10:42:19" (1/3) ...
[2018-01-21 10:42:20,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13eecc8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:42:20, skipping insertion in model container
[2018-01-21 10:42:20,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:42:20" (2/3) ...
[2018-01-21 10:42:20,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13eecc8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:42:20, skipping insertion in model container
[2018-01-21 10:42:20,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:42:20" (3/3) ...
[2018-01-21 10:42:20,458 INFO L105 eAbstractionObserver]: Analyzing ICFG test-bitfields-1_false-valid-deref.i
[2018-01-21 10:42:20,465 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-01-21 10:42:20,471 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations.
[2018-01-21 10:42:20,507 INFO L322 AbstractCegarLoop]: Interprodecural is true
[2018-01-21 10:42:20,508 INFO L323 AbstractCegarLoop]: Hoare is true
[2018-01-21 10:42:20,508 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-01-21 10:42:20,508 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK
[2018-01-21 10:42:20,508 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-01-21 10:42:20,508 INFO L327 AbstractCegarLoop]: Difference is false
[2018-01-21 10:42:20,508 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-01-21 10:42:20,508 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation========
[2018-01-21 10:42:20,509 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure
[2018-01-21 10:42:20,528 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2018-01-21 10:42:20,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2018-01-21 10:42:20,535 INFO L314 BasicCegarLoop]: Found error trace
[2018-01-21 10:42:20,536 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1]
[2018-01-21 10:42:20,536 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]===
[2018-01-21 10:42:20,542 INFO L82 PathProgramCache]: Analyzing trace with hash 76882, now seen corresponding path program 1 times
[2018-01-21 10:42:20,544 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-01-21 10:42:20,604 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-21 10:42:20,605 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-01-21 10:42:20,605 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-21 10:42:20,605 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-01-21 10:42:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-01-21 10:42:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-01-21 10:42:20,664 INFO L381 BasicCegarLoop]: Counterexample might be feasible
[2018-01-21 10:42:20,671 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-21 10:42:20,678 INFO L322 AbstractCegarLoop]: Interprodecural is true
[2018-01-21 10:42:20,678 INFO L323 AbstractCegarLoop]: Hoare is true
[2018-01-21 10:42:20,678 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-01-21 10:42:20,678 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK
[2018-01-21 10:42:20,678 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-01-21 10:42:20,678 INFO L327 AbstractCegarLoop]: Difference is false
[2018-01-21 10:42:20,679 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-01-21 10:42:20,679 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation========
[2018-01-21 10:42:20,679 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure
[2018-01-21 10:42:20,681 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2018-01-21 10:42:20,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2018-01-21 10:42:20,682 INFO L314 BasicCegarLoop]: Found error trace
[2018-01-21 10:42:20,683 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 10:42:20,683 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]===
[2018-01-21 10:42:20,683 INFO L82 PathProgramCache]: Analyzing trace with hash 892483675, now seen corresponding path program 1 times
[2018-01-21 10:42:20,683 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-01-21 10:42:20,684 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-21 10:42:20,685 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-01-21 10:42:20,685 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-21 10:42:20,685 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-01-21 10:42:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-01-21 10:42:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-01-21 10:42:20,764 INFO L381 BasicCegarLoop]: Counterexample might be feasible
[2018-01-21 10:42:20,769 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-21 10:42:20,771 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-21 10:42:20,772 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-21 10:42:20,782 INFO L322 AbstractCegarLoop]: Interprodecural is true
[2018-01-21 10:42:20,783 INFO L323 AbstractCegarLoop]: Hoare is true
[2018-01-21 10:42:20,783 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-01-21 10:42:20,783 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK
[2018-01-21 10:42:20,783 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-01-21 10:42:20,783 INFO L327 AbstractCegarLoop]: Difference is false
[2018-01-21 10:42:20,783 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-01-21 10:42:20,783 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation========
[2018-01-21 10:42:20,784 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure
[2018-01-21 10:42:20,785 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2018-01-21 10:42:20,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2018-01-21 10:42:20,786 INFO L314 BasicCegarLoop]: Found error trace
[2018-01-21 10:42:20,786 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 10:42:20,787 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]===
[2018-01-21 10:42:20,787 INFO L82 PathProgramCache]: Analyzing trace with hash 251207754, now seen corresponding path program 1 times
[2018-01-21 10:42:20,787 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-01-21 10:42:20,788 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-21 10:42:20,788 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-01-21 10:42:20,789 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-21 10:42:20,789 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-01-21 10:42:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-01-21 10:42:20,821 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.
[2018-01-21 10:42:21,020 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 10:42:21,021 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-01-21 10:42:21,022 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2018-01-21 10:42:21,022 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-01-21 10:42:21,023 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states
[2018-01-21 10:42:21,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2018-01-21 10:42:21,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2018-01-21 10:42:21,101 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states.
[2018-01-21 10:42:21,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-01-21 10:42:21,308 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions.
[2018-01-21 10:42:21,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2018-01-21 10:42:21,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22
[2018-01-21 10:42:21,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-01-21 10:42:21,319 INFO L225 Difference]: With dead ends: 59
[2018-01-21 10:42:21,319 INFO L226 Difference]: Without dead ends: 0
[2018-01-21 10:42:21,322 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 10:42:21,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2018-01-21 10:42:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2018-01-21 10:42:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2018-01-21 10:42:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2018-01-21 10:42:21,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22
[2018-01-21 10:42:21,353 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-01-21 10:42:21,353 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-01-21 10:42:21,353 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2018-01-21 10:42:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2018-01-21 10:42:21,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2018-01-21 10:42:21,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 10:42:21 BoogieIcfgContainer
[2018-01-21 10:42:21,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-01-21 10:42:21,357 INFO L168 Benchmark]: Toolchain (without parser) took 1372.21 ms. Allocated memory was 305.7 MB in the beginning and 465.6 MB in the end (delta: 159.9 MB). Free memory was 265.0 MB in the beginning and 422.6 MB in the end (delta: -157.6 MB). Peak memory consumption was 2.3 MB. Max. memory is 5.3 GB.
[2018-01-21 10:42:21,358 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 305.7 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-21 10:42:21,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.54 ms. Allocated memory is still 305.7 MB. Free memory was 264.0 MB in the beginning and 255.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB.
[2018-01-21 10:42:21,359 INFO L168 Benchmark]: Boogie Preprocessor took 38.15 ms. Allocated memory is still 305.7 MB. Free memory was 255.9 MB in the beginning and 254.9 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB.
[2018-01-21 10:42:21,359 INFO L168 Benchmark]: RCFGBuilder took 252.54 ms. Allocated memory is still 305.7 MB. Free memory was 254.9 MB in the beginning and 240.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB.
[2018-01-21 10:42:21,360 INFO L168 Benchmark]: TraceAbstraction took 904.38 ms. Allocated memory was 305.7 MB in the beginning and 465.6 MB in the end (delta: 159.9 MB). Free memory was 240.1 MB in the beginning and 422.6 MB in the end (delta: -182.5 MB). There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-21 10:42:21,362 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13 ms. Allocated memory is still 305.7 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB.
* CACSL2BoogieTranslator took 170.54 ms. Allocated memory is still 305.7 MB. Free memory was 264.0 MB in the beginning and 255.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB.
* Boogie Preprocessor took 38.15 ms. Allocated memory is still 305.7 MB. Free memory was 255.9 MB in the beginning and 254.9 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB.
* RCFGBuilder took 252.54 ms. Allocated memory is still 305.7 MB. Free memory was 254.9 MB in the beginning and 240.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB.
* TraceAbstraction took 904.38 ms. Allocated memory was 305.7 MB in the beginning and 465.6 MB in the end (delta: 159.9 MB). Free memory was 240.1 MB in the beginning and 422.6 MB in the end (delta: -182.5 MB). There was no memory consumed. Max. memory is 5.3 GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
- GenericResult: Unfinished Backtranslation
Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
- GenericResult: Unfinished Backtranslation
Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
- GenericResult: Unfinished Backtranslation
Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
* 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:
[L23] struct A *p;
[L24] EXPR, FCALL malloc(2)
VAL [malloc(2)={7:0}]
[L24] p = malloc(2)
VAL [malloc(2)={7:0}, p={7:0}]
[L25] FCALL p->a = 1
VAL [malloc(2)={7:0}, p={7:0}]
[L26] EXPR, FCALL p->a
VAL [malloc(2)={7:0}, p={7:0}, p->a=1]
[L26] COND FALSE !(p->a != 1)
[L29] FCALL p->b = 2
VAL [malloc(2)={7:0}, p={7:0}]
[L30] EXPR, FCALL p->b
VAL [malloc(2)={7:0}, p={7:0}, p->b=2]
[L30] COND FALSE !(p->b != 2)
[L33] FCALL p->c = 3
VAL [malloc(2)={7:0}, p={7:0}]
[L34] EXPR, FCALL p->c
VAL [malloc(2)={7:0}, p={7:0}, p->c=3]
[L34] COND FALSE !(p->c != 3)
[L37] FCALL p->d = 4
VAL [malloc(2)={7:0}, p={7:0}]
[L38] EXPR, FCALL p->d
VAL [malloc(2)={7:0}, p={7:0}, p->d=4]
[L38] 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, 0.1s 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, 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: 21]: 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, 0.5s 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, 0.1s 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_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_10-42-21-371.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-1_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_10-42-21-371.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-1_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_10-42-21-371.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-1_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_10-42-21-371.csv
Received shutdown request...