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_preciseopt.epf -i ../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 08:18:10,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 08:18:10,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 08:18:10,617 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 08:18:10,618 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 08:18:10,619 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 08:18:10,620 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 08:18:10,621 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 08:18:10,623 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 08:18:10,624 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 08:18:10,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 08:18:10,625 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 08:18:10,626 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 08:18:10,628 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 08:18:10,629 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 08:18:10,631 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 08:18:10,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 08:18:10,635 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 08:18:10,637 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 08:18:10,638 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 08:18:10,640 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 08:18:10,641 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 08:18:10,641 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 08:18:10,642 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 08:18:10,642 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 08:18:10,644 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 08:18:10,644 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 08:18:10,645 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 08:18:10,645 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 08:18:10,645 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 08:18:10,646 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 08:18:10,646 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_preciseopt.epf [2018-01-21 08:18:10,656 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 08:18:10,656 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 08:18:10,657 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 08:18:10,657 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 08:18:10,657 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 08:18:10,657 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 08:18:10,658 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-21 08:18:10,658 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 08:18:10,658 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 08:18:10,659 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 08:18:10,659 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 08:18:10,659 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 08:18:10,659 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 08:18:10,660 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 08:18:10,660 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 08:18:10,660 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 08:18:10,660 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 08:18:10,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 08:18:10,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 08:18:10,661 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 08:18:10,661 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 08:18:10,661 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 08:18:10,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 08:18:10,661 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 08:18:10,662 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 08:18:10,662 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 08:18:10,662 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 08:18:10,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:18:10,662 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 08:18:10,663 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 08:18:10,663 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 08:18:10,663 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 08:18:10,663 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 08:18:10,663 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 08:18:10,664 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 08:18:10,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 08:18:10,664 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 08:18:10,664 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 08:18:10,665 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 08:18:10,665 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 08:18:10,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 08:18:10,709 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 08:18:10,712 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 08:18:10,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 08:18:10,714 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 08:18:10,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i [2018-01-21 08:18:10,870 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 08:18:10,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 08:18:10,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 08:18:10,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 08:18:10,882 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 08:18:10,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:18:10" (1/1) ... [2018-01-21 08:18:10,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e99cb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:10, skipping insertion in model container [2018-01-21 08:18:10,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:18:10" (1/1) ... [2018-01-21 08:18:10,899 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:18:10,939 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:18:11,051 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:18:11,067 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:18:11,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11 WrapperNode [2018-01-21 08:18:11,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 08:18:11,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 08:18:11,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 08:18:11,074 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 08:18:11,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (1/1) ... [2018-01-21 08:18:11,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (1/1) ... [2018-01-21 08:18:11,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (1/1) ... [2018-01-21 08:18:11,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (1/1) ... [2018-01-21 08:18:11,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (1/1) ... [2018-01-21 08:18:11,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (1/1) ... [2018-01-21 08:18:11,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (1/1) ... [2018-01-21 08:18:11,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 08:18:11,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 08:18:11,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 08:18:11,105 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 08:18:11,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (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 08:18:11,153 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 08:18:11,153 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 08:18:11,153 INFO L136 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-01-21 08:18:11,153 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 08:18:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 08:18:11,318 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 08:18:11,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:18:11 BoogieIcfgContainer [2018-01-21 08:18:11,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 08:18:11,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 08:18:11,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 08:18:11,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 08:18:11,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 08:18:10" (1/3) ... [2018-01-21 08:18:11,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388bd8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:18:11, skipping insertion in model container [2018-01-21 08:18:11,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:18:11" (2/3) ... [2018-01-21 08:18:11,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388bd8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:18:11, skipping insertion in model container [2018-01-21 08:18:11,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:18:11" (3/3) ... [2018-01-21 08:18:11,324 INFO L105 eAbstractionObserver]: Analyzing ICFG stroeder1-alloca_true-valid-memsafety_true-termination.i [2018-01-21 08:18:11,330 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 08:18:11,335 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 08:18:11,381 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:18:11,381 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:18:11,381 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:18:11,382 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:18:11,382 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:18:11,382 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:18:11,382 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:18:11,382 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 08:18:11,383 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:18:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-21 08:18:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 08:18:11,402 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:11,403 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 08:18:11,403 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 08:18:11,408 INFO L82 PathProgramCache]: Analyzing trace with hash 70155, now seen corresponding path program 1 times [2018-01-21 08:18:11,411 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:11,456 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,456 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:11,457 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,457 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:18:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:18:11,513 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:18:11,519 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:18:11,524 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:18:11,524 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:18:11,524 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:18:11,524 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:18:11,525 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:18:11,525 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:18:11,525 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:18:11,525 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == sumOfThirdBytesErr0EnsuresViolation======== [2018-01-21 08:18:11,525 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:18:11,526 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-21 08:18:11,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-21 08:18:11,527 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:11,527 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:18:11,527 INFO L371 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr0EnsuresViolation]=== [2018-01-21 08:18:11,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1395541294, now seen corresponding path program 1 times [2018-01-21 08:18:11,527 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:11,528 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,529 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:11,529 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,529 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:18:11,556 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:18:11,587 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 08:18:11,588 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:18:11,588 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:18:11,588 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:18:11,590 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:18:11,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:18:11,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:18:11,604 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-01-21 08:18:11,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:18:11,630 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2018-01-21 08:18:11,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:18:11,631 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-01-21 08:18:11,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:18:11,640 INFO L225 Difference]: With dead ends: 42 [2018-01-21 08:18:11,640 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:18:11,644 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:18:11,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:18:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:18:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:18:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:18:11,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-01-21 08:18:11,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:18:11,739 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:18:11,739 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:18:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:18:11,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:18:11,741 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:18:11,741 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:18:11,741 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:18:11,741 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:18:11,741 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:18:11,742 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:18:11,742 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:18:11,742 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 08:18:11,742 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:18:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-21 08:18:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-21 08:18:11,744 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:11,744 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] [2018-01-21 08:18:11,744 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:18:11,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1213268337, now seen corresponding path program 1 times [2018-01-21 08:18:11,744 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:11,745 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,745 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:11,746 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,746 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:18:11,759 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:18:11,776 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 08:18:11,776 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:18:11,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:18:11,776 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:18:11,777 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:18:11,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:18:11,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:18:11,778 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-01-21 08:18:11,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:18:11,781 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2018-01-21 08:18:11,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:18:11,782 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-01-21 08:18:11,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:18:11,786 INFO L225 Difference]: With dead ends: 42 [2018-01-21 08:18:11,786 INFO L226 Difference]: Without dead ends: 26 [2018-01-21 08:18:11,786 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:18:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-01-21 08:18:11,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-01-21 08:18:11,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-01-21 08:18:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-01-21 08:18:11,797 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2018-01-21 08:18:11,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:18:11,797 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-01-21 08:18:11,797 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:18:11,797 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-01-21 08:18:11,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-21 08:18:11,798 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:11,798 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 08:18:11,798 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:18:11,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1087049420, now seen corresponding path program 1 times [2018-01-21 08:18:11,798 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:11,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,799 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:11,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:11,799 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:18:11,821 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:18:11,914 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 08:18:11,914 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:18:11,914 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 08:18:11,914 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:18:11,915 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 08:18:11,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 08:18:11,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 08:18:11,916 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2018-01-21 08:18:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:18:12,000 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-01-21 08:18:12,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 08:18:12,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-01-21 08:18:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:18:12,002 INFO L225 Difference]: With dead ends: 41 [2018-01-21 08:18:12,002 INFO L226 Difference]: Without dead ends: 31 [2018-01-21 08:18:12,002 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 08:18:12,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-01-21 08:18:12,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2018-01-21 08:18:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-21 08:18:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-01-21 08:18:12,007 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2018-01-21 08:18:12,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:18:12,007 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-01-21 08:18:12,007 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 08:18:12,007 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-01-21 08:18:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-21 08:18:12,008 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:12,008 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:18:12,008 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:18:12,008 INFO L82 PathProgramCache]: Analyzing trace with hash -375422602, now seen corresponding path program 1 times [2018-01-21 08:18:12,008 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:12,009 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,009 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:12,009 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,009 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:18:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:18:12,049 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:18:12,055 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:18:12,057 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:18:12,058 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:18:12,059 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:18:12,070 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:18:12,070 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:18:12,070 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:18:12,070 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:18:12,070 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:18:12,070 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:18:12,071 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:18:12,071 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 08:18:12,071 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:18:12,071 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-21 08:18:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 08:18:12,072 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:12,072 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:18:12,072 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 08:18:12,072 INFO L82 PathProgramCache]: Analyzing trace with hash -2023316251, now seen corresponding path program 1 times [2018-01-21 08:18:12,073 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:12,073 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,073 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:12,074 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,074 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:18:12,080 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:18:12,091 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 08:18:12,091 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:18:12,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:18:12,092 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:18:12,092 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:18:12,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:18:12,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:18:12,092 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-01-21 08:18:12,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:18:12,094 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2018-01-21 08:18:12,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:18:12,094 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-01-21 08:18:12,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:18:12,095 INFO L225 Difference]: With dead ends: 42 [2018-01-21 08:18:12,095 INFO L226 Difference]: Without dead ends: 24 [2018-01-21 08:18:12,095 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:18:12,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-21 08:18:12,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-21 08:18:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-21 08:18:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-01-21 08:18:12,098 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 19 [2018-01-21 08:18:12,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:18:12,098 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-01-21 08:18:12,098 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:18:12,099 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-01-21 08:18:12,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-21 08:18:12,099 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:12,099 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:18:12,099 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-21 08:18:12,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1762023064, now seen corresponding path program 1 times [2018-01-21 08:18:12,099 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:12,100 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,100 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:12,100 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,100 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:18:12,110 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:18:12,148 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 08:18:12,148 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:18:12,149 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 08:18:12,149 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:18:12,149 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 08:18:12,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 08:18:12,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 08:18:12,149 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2018-01-21 08:18:12,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:18:12,210 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-01-21 08:18:12,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 08:18:12,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-21 08:18:12,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:18:12,212 INFO L225 Difference]: With dead ends: 37 [2018-01-21 08:18:12,212 INFO L226 Difference]: Without dead ends: 29 [2018-01-21 08:18:12,212 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 08:18:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-01-21 08:18:12,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2018-01-21 08:18:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-01-21 08:18:12,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-01-21 08:18:12,217 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 20 [2018-01-21 08:18:12,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:18:12,217 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-01-21 08:18:12,217 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 08:18:12,217 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-01-21 08:18:12,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-21 08:18:12,218 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:18:12,218 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:18:12,218 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation]=== [2018-01-21 08:18:12,219 INFO L82 PathProgramCache]: Analyzing trace with hash 669999658, now seen corresponding path program 1 times [2018-01-21 08:18:12,219 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:18:12,220 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,220 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:18:12,220 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:18:12,220 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:18:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:18:12,238 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:18:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-21 08:18:12,308 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:18:12,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 08:18:12,309 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:18:12,309 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 08:18:12,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 08:18:12,310 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 08:18:12,310 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 4 states. [2018-01-21 08:18:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:18:12,398 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-01-21 08:18:12,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 08:18:12,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-01-21 08:18:12,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:18:12,399 INFO L225 Difference]: With dead ends: 26 [2018-01-21 08:18:12,400 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:18:12,400 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 08:18:12,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:18:12,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:18:12,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:18:12,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:18:12,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-01-21 08:18:12,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:18:12,401 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:18:12,401 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 08:18:12,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:18:12,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:18:12,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 08:18:12 BoogieIcfgContainer [2018-01-21 08:18:12,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 08:18:12,405 INFO L168 Benchmark]: Toolchain (without parser) took 1534.34 ms. Allocated memory was 305.7 MB in the beginning and 467.1 MB in the end (delta: 161.5 MB). Free memory was 264.0 MB in the beginning and 383.4 MB in the end (delta: -119.4 MB). Peak memory consumption was 42.1 MB. Max. memory is 5.3 GB. [2018-01-21 08:18:12,407 INFO L168 Benchmark]: CDTParser took 0.14 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 08:18:12,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.35 ms. Allocated memory is still 305.7 MB. Free memory was 263.0 MB in the beginning and 253.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:18:12,407 INFO L168 Benchmark]: Boogie Preprocessor took 31.37 ms. Allocated memory is still 305.7 MB. Free memory was 253.0 MB in the beginning and 252.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-21 08:18:12,408 INFO L168 Benchmark]: RCFGBuilder took 213.25 ms. Allocated memory is still 305.7 MB. Free memory was 252.0 MB in the beginning and 237.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-21 08:18:12,408 INFO L168 Benchmark]: TraceAbstraction took 1085.48 ms. Allocated memory was 305.7 MB in the beginning and 467.1 MB in the end (delta: 161.5 MB). Free memory was 237.4 MB in the beginning and 383.4 MB in the end (delta: -146.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 5.3 GB. [2018-01-21 08:18:12,410 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 197.35 ms. Allocated memory is still 305.7 MB. Free memory was 263.0 MB in the beginning and 253.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.37 ms. Allocated memory is still 305.7 MB. Free memory was 253.0 MB in the beginning and 252.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 213.25 ms. Allocated memory is still 305.7 MB. Free memory was 252.0 MB in the beginning and 237.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1085.48 ms. Allocated memory was 305.7 MB in the beginning and 467.1 MB in the end (delta: 161.5 MB). Free memory was 237.4 MB in the beginning and 383.4 MB in the end (delta: -146.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 4 procedures, 30 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: sumOfThirdBytesErr0EnsuresViolation CFG has 4 procedures, 30 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L553] int array_size = __VERIFIER_nondet_int(); [L554] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) VAL [array_size=1] [L557] EXPR, FCALL __builtin_alloca (array_size * sizeof(int)) VAL [__builtin_alloca (array_size * sizeof(int))={6:0}, array_size=1] [L557] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); VAL [__builtin_alloca (array_size * sizeof(int))={6:0}, array_size=1, numbers={6:0}] [L558] CALL, EXPR sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=1, numbers={6:0}] [L542] int i, sum; [L543] char* p; [L544] sum = 0 [L545] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={6:0}, numbers={6:0}, sum=0] [L545] COND TRUE i < array_size [L546] p = &(numbers[i]) [L547] p = p + 2 VAL [\old(array_size)=1, array_size=1, i=0, numbers={6:0}, numbers={6:0}, p={6:2}, sum=0] [L548] EXPR, FCALL \read(*p) VAL [\old(array_size)=1, \read(*p)=0, array_size=1, i=0, numbers={6:0}, numbers={6:0}, p={6:2}, sum=0] [L548] sum = sum + *p [L545] i++ VAL [\old(array_size)=1, array_size=1, i=1, numbers={6:0}, numbers={6:0}, p={6:2}, sum=0] [L545] COND FALSE !(i < array_size) VAL [\old(array_size)=1, array_size=1, i=1, numbers={6:0}, numbers={6:0}, p={6:2}, sum=0] [L550] RET return sum; VAL [\old(array_size)=1, \result=0, array_size=1, i=1, numbers={6:0}, numbers={6:0}, p={6:2}, sum=0] [L558] EXPR sumOfThirdBytes(numbers, array_size) VAL [__builtin_alloca (array_size * sizeof(int))={6:0}, array_size=1, numbers={6:0}, sumOfThirdBytes(numbers, array_size)=0] [L558] return sumOfThirdBytes(numbers, array_size); - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 30 locations, 4 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 10 SDslu, 57 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 1345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 30 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 70 SDtfs, 20 SDslu, 55 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2965 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_08-18-12-420.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_08-18-12-420.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_08-18-12-420.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_08-18-12-420.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_08-18-12-420.csv Received shutdown request...