java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 23:59:55,025 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 23:59:55,028 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 23:59:55,042 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 23:59:55,043 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 23:59:55,044 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 23:59:55,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 23:59:55,046 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 23:59:55,047 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 23:59:55,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 23:59:55,049 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 23:59:55,049 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 23:59:55,049 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 23:59:55,051 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 23:59:55,052 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 23:59:55,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 23:59:55,057 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 23:59:55,059 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 23:59:55,060 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 23:59:55,062 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 23:59:55,064 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-20 23:59:55,064 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-20 23:59:55,064 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-20 23:59:55,066 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-20 23:59:55,067 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-20 23:59:55,068 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-20 23:59:55,068 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-20 23:59:55,069 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-20 23:59:55,069 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-20 23:59:55,069 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 23:59:55,070 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 23:59:55,070 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-20 23:59:55,080 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 23:59:55,081 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 23:59:55,082 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 23:59:55,082 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 23:59:55,082 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 23:59:55,082 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 23:59:55,082 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 23:59:55,083 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 23:59:55,083 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 23:59:55,083 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 23:59:55,084 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 23:59:55,084 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 23:59:55,084 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 23:59:55,084 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 23:59:55,084 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 23:59:55,084 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 23:59:55,085 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 23:59:55,085 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 23:59:55,085 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 23:59:55,085 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 23:59:55,085 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 23:59:55,086 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 23:59:55,086 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 23:59:55,086 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 23:59:55,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 23:59:55,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 23:59:55,087 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 23:59:55,087 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 23:59:55,087 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 23:59:55,087 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 23:59:55,087 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 23:59:55,088 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-20 23:59:55,088 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 23:59:55,088 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 23:59:55,088 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 23:59:55,088 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-20 23:59:55,089 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 23:59:55,089 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 23:59:55,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 23:59:55,139 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 23:59:55,143 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 23:59:55,144 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 23:59:55,145 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 23:59:55,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_true-valid-memsafety_true-termination.i [2018-01-20 23:59:55,290 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 23:59:55,295 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 23:59:55,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 23:59:55,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 23:59:55,302 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 23:59:55,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41280496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55, skipping insertion in model container [2018-01-20 23:59:55,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,322 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:59:55,340 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:59:55,452 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:59:55,467 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:59:55,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55 WrapperNode [2018-01-20 23:59:55,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 23:59:55,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 23:59:55,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 23:59:55,475 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 23:59:55,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... [2018-01-20 23:59:55,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 23:59:55,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 23:59:55,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 23:59:55,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 23:59:55,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 23:59:55,553 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 23:59:55,554 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 23:59:55,554 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 23:59:55,554 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 23:59:55,554 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 23:59:55,554 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 23:59:55,554 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 23:59:55,554 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 23:59:55,554 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-20 23:59:55,554 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-20 23:59:55,555 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 23:59:55,555 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 23:59:55,555 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 23:59:55,718 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 23:59:55,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:59:55 BoogieIcfgContainer [2018-01-20 23:59:55,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 23:59:55,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 23:59:55,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 23:59:55,721 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 23:59:55,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 11:59:55" (1/3) ... [2018-01-20 23:59:55,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d33db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:59:55, skipping insertion in model container [2018-01-20 23:59:55,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:55" (2/3) ... [2018-01-20 23:59:55,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d33db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:59:55, skipping insertion in model container [2018-01-20 23:59:55,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:59:55" (3/3) ... [2018-01-20 23:59:55,724 INFO L105 eAbstractionObserver]: Analyzing ICFG test-bitfields-1_true-valid-memsafety_true-termination.i [2018-01-20 23:59:55,731 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 23:59:55,737 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-20 23:59:55,781 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:59:55,782 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:59:55,782 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:59:55,782 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:59:55,782 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:59:55,782 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:59:55,783 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:59:55,783 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 23:59:55,784 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:59:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-20 23:59:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 23:59:55,806 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:59:55,807 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 23:59:55,807 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 23:59:55,811 INFO L82 PathProgramCache]: Analyzing trace with hash 76882, now seen corresponding path program 1 times [2018-01-20 23:59:55,813 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:59:55,855 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:59:55,855 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:59:55,855 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:59:55,855 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:59:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:59:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:59:55,914 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:59:55,920 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:59:55,926 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:59:55,926 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:59:55,926 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:59:55,927 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:59:55,927 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:59:55,927 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:59:55,927 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:59:55,927 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 23:59:55,927 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:59:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-20 23:59:55,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-20 23:59:55,931 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:59:55,931 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] [2018-01-20 23:59:55,931 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:59:55,931 INFO L82 PathProgramCache]: Analyzing trace with hash 892483675, now seen corresponding path program 1 times [2018-01-20 23:59:55,932 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:59:55,933 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:59:55,933 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:59:55,933 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:59:55,933 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:59:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:59:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:59:56,012 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:59:56,017 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:59:56,020 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:59:56,020 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:59:56,029 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:59:56,029 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:59:56,029 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:59:56,029 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:59:56,029 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:59:56,029 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:59:56,029 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:59:56,030 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 23:59:56,030 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:59:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-20 23:59:56,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-20 23:59:56,033 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:59:56,033 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] [2018-01-20 23:59:56,033 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 23:59:56,034 INFO L82 PathProgramCache]: Analyzing trace with hash 251207754, now seen corresponding path program 1 times [2018-01-20 23:59:56,034 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:59:56,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:59:56,035 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:59:56,036 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:59:56,036 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:59:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:59:56,071 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:59:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:59:56,317 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:59:56,317 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 23:59:56,317 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:59:56,319 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 23:59:56,392 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 23:59:56,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 23:59:56,394 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2018-01-20 23:59:56,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:59:56,660 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-01-20 23:59:56,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-20 23:59:56,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-01-20 23:59:56,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:59:56,667 INFO L225 Difference]: With dead ends: 59 [2018-01-20 23:59:56,668 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:59:56,699 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 [2018-01-20 23:59:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:59:56,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:59:56,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:59:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:59:56,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-01-20 23:59:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:59:56,718 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:59:56,718 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 23:59:56,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:59:56,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:59:56,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 11:59:56 BoogieIcfgContainer [2018-01-20 23:59:56,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 23:59:56,721 INFO L168 Benchmark]: Toolchain (without parser) took 1431.03 ms. Allocated memory was 303.0 MB in the beginning and 456.7 MB in the end (delta: 153.6 MB). Free memory was 262.3 MB in the beginning and 413.4 MB in the end (delta: -151.1 MB). Peak memory consumption was 2.5 MB. Max. memory is 5.3 GB. [2018-01-20 23:59:56,722 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:59:56,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.52 ms. Allocated memory is still 303.0 MB. Free memory was 261.4 MB in the beginning and 253.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-01-20 23:59:56,723 INFO L168 Benchmark]: Boogie Preprocessor took 34.10 ms. Allocated memory is still 303.0 MB. Free memory was 253.3 MB in the beginning and 252.3 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-01-20 23:59:56,723 INFO L168 Benchmark]: RCFGBuilder took 209.82 ms. Allocated memory is still 303.0 MB. Free memory was 252.3 MB in the beginning and 237.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. [2018-01-20 23:59:56,723 INFO L168 Benchmark]: TraceAbstraction took 1001.83 ms. Allocated memory was 303.0 MB in the beginning and 456.7 MB in the end (delta: 153.6 MB). Free memory was 237.5 MB in the beginning and 413.4 MB in the end (delta: -175.9 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:59:56,725 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 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 178.52 ms. Allocated memory is still 303.0 MB. Free memory was 261.4 MB in the beginning and 253.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.10 ms. Allocated memory is still 303.0 MB. Free memory was 253.3 MB in the beginning and 252.3 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 209.82 ms. Allocated memory is still 303.0 MB. Free memory was 252.3 MB in the beginning and 237.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1001.83 ms. Allocated memory was 303.0 MB in the beginning and 456.7 MB in the end (delta: 153.6 MB). Free memory was 237.5 MB in the beginning and 413.4 MB in the end (delta: -175.9 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, 0.1s 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: 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, 0.3s 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_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_23-59-56-733.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_23-59-56-733.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_23-59-56-733.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_23-59-56-733.csv Received shutdown request...