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_imprecise.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:59:33,223 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:59:33,225 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:59:33,240 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:59:33,241 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:59:33,242 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:59:33,243 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:59:33,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:59:33,247 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:59:33,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:59:33,248 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 00:59:33,248 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 00:59:33,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 00:59:33,251 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 00:59:33,251 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 00:59:33,254 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 00:59:33,256 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 00:59:33,258 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 00:59:33,259 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 00:59:33,260 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 00:59:33,262 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 00:59:33,262 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 00:59:33,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 00:59:33,263 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 00:59:33,264 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 00:59:33,265 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 00:59:33,265 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 00:59:33,266 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 00:59:33,266 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 00:59:33,266 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 00:59:33,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 00:59:33,267 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_imprecise.epf [2018-01-21 00:59:33,277 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:59:33,277 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:59:33,278 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:59:33,278 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:59:33,278 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:59:33,278 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-21 00:59:33,279 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:59:33,279 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:59:33,279 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:59:33,280 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:59:33,280 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:59:33,280 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:59:33,280 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:59:33,280 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:59:33,280 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:59:33,281 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:59:33,281 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:59:33,281 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:59:33,281 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:59:33,281 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:59:33,282 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:59:33,282 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:59:33,282 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:59:33,282 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:59:33,282 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:59:33,283 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:59:33,283 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:59:33,283 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:59:33,283 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:59:33,283 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:59:33,284 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:59:33,284 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:59:33,284 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:59:33,284 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:59:33,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:59:33,284 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:59:33,285 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:59:33,285 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:59:33,286 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:59:33,317 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:59:33,330 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:59:33,333 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:59:33,335 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:59:33,335 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:59:33,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-01-21 00:59:33,497 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:59:33,500 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:59:33,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:59:33,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:59:33,505 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:59:33,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6479bd29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33, skipping insertion in model container [2018-01-21 00:59:33,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,527 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:59:33,568 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:59:33,686 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:59:33,707 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:59:33,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33 WrapperNode [2018-01-21 00:59:33,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:59:33,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:59:33,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:59:33,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:59:33,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (1/1) ... [2018-01-21 00:59:33,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:59:33,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:59:33,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:59:33,758 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:59:33,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (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 00:59:33,810 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:59:33,811 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:59:33,811 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:59:33,811 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:59:33,811 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:59:33,811 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:59:33,811 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:59:33,811 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:59:33,811 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:59:33,811 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:59:33,812 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 00:59:33,812 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 00:59:33,812 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 00:59:33,812 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 00:59:33,812 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:59:33,812 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:59:33,812 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:59:34,107 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:59:34,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:59:34 BoogieIcfgContainer [2018-01-21 00:59:34,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:59:34,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:59:34,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:59:34,112 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:59:34,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:59:33" (1/3) ... [2018-01-21 00:59:34,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b14da15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:59:34, skipping insertion in model container [2018-01-21 00:59:34,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:59:33" (2/3) ... [2018-01-21 00:59:34,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b14da15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:59:34, skipping insertion in model container [2018-01-21 00:59:34,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:59:34" (3/3) ... [2018-01-21 00:59:34,116 INFO L105 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-01-21 00:59:34,126 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:59:34,134 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 00:59:34,180 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:59:34,180 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:59:34,180 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:59:34,181 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:59:34,181 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:59:34,181 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:59:34,181 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:59:34,181 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:59:34,181 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:59:34,196 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-01-21 00:59:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:59:34,201 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:59:34,202 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:59:34,202 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:59:34,206 INFO L82 PathProgramCache]: Analyzing trace with hash 178519, now seen corresponding path program 1 times [2018-01-21 00:59:34,208 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:59:34,248 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:34,248 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:59:34,248 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:34,248 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:59:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:59:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:59:34,305 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:59:34,311 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:59:34,318 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:59:34,318 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:59:34,318 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:59:34,318 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:59:34,318 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:59:34,318 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:59:34,319 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:59:34,319 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:59:34,319 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:59:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-01-21 00:59:34,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 00:59:34,324 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:59:34,325 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:59:34,325 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:59:34,325 INFO L82 PathProgramCache]: Analyzing trace with hash 167119557, now seen corresponding path program 1 times [2018-01-21 00:59:34,325 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:59:34,326 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:34,327 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:59:34,327 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:34,327 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:59:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:59:34,362 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:59:34,502 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 00:59:34,504 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:59:34,504 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 00:59:34,505 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:59:34,507 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 00:59:34,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 00:59:34,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:59:34,521 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-01-21 00:59:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:59:34,545 INFO L93 Difference]: Finished difference Result 117 states and 144 transitions. [2018-01-21 00:59:34,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 00:59:34,547 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2018-01-21 00:59:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:59:34,557 INFO L225 Difference]: With dead ends: 117 [2018-01-21 00:59:34,557 INFO L226 Difference]: Without dead ends: 63 [2018-01-21 00:59:34,560 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 00:59:34,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-21 00:59:34,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-01-21 00:59:34,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-21 00:59:34,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2018-01-21 00:59:34,592 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 29 [2018-01-21 00:59:34,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:59:34,592 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2018-01-21 00:59:34,593 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 00:59:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2018-01-21 00:59:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 00:59:34,594 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:59:34,594 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:59:34,594 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:59:34,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1941446604, now seen corresponding path program 1 times [2018-01-21 00:59:34,594 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:59:34,595 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:34,595 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:59:34,596 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:34,596 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:59:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:59:34,628 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:59:34,774 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 00:59:34,775 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:59:34,775 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-21 00:59:34,775 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:59:34,776 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-21 00:59:34,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-21 00:59:34,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-21 00:59:34,777 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2018-01-21 00:59:35,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:59:35,256 INFO L93 Difference]: Finished difference Result 156 states and 175 transitions. [2018-01-21 00:59:35,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-21 00:59:35,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-01-21 00:59:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:59:35,263 INFO L225 Difference]: With dead ends: 156 [2018-01-21 00:59:35,264 INFO L226 Difference]: Without dead ends: 145 [2018-01-21 00:59:35,265 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:59:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-01-21 00:59:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 87. [2018-01-21 00:59:35,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-01-21 00:59:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2018-01-21 00:59:35,276 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 35 [2018-01-21 00:59:35,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:59:35,277 INFO L432 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2018-01-21 00:59:35,277 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-21 00:59:35,277 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2018-01-21 00:59:35,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-01-21 00:59:35,278 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:59:35,278 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:59:35,278 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:59:35,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1166710710, now seen corresponding path program 1 times [2018-01-21 00:59:35,278 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:59:35,279 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:35,279 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:59:35,280 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:35,280 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:59:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:59:35,302 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:59:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-01-21 00:59:35,369 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:59:35,369 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 00:59:35,369 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:59:35,370 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 00:59:35,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 00:59:35,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 00:59:35,370 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand 5 states. [2018-01-21 00:59:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:59:35,533 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2018-01-21 00:59:35,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-21 00:59:35,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-01-21 00:59:35,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:59:35,538 INFO L225 Difference]: With dead ends: 112 [2018-01-21 00:59:35,538 INFO L226 Difference]: Without dead ends: 107 [2018-01-21 00:59:35,538 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-21 00:59:35,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-01-21 00:59:35,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 73. [2018-01-21 00:59:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-21 00:59:35,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2018-01-21 00:59:35,550 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 40 [2018-01-21 00:59:35,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:59:35,550 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2018-01-21 00:59:35,551 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 00:59:35,551 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2018-01-21 00:59:35,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-21 00:59:35,552 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:59:35,553 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:59:35,553 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:59:35,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1061404202, now seen corresponding path program 1 times [2018-01-21 00:59:35,553 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:59:35,554 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:35,554 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:59:35,555 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:59:35,555 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:59:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:59:35,584 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:59:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:59:35,849 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:59:35,849 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:59:35,850 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-01-21 00:59:35,852 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [4], [8], [10], [13], [25], [35], [39], [41], [44], [57], [58], [59], [60], [61], [62], [64], [68], [70], [73], [81], [82], [86], [90], [123], [127], [131], [133], [134], [135], [136], [140], [141], [143], [144], [149], [150], [151], [152], [153] [2018-01-21 00:59:35,898 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:59:35,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:59:36,150 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-21 00:59:36,151 INFO L268 AbstractInterpreter]: Visited 43 different actions 46 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 36 variables. [2018-01-21 00:59:36,167 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-21 00:59:36,168 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:59:36,168 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:59:36,178 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:59:36,179 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:59:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:59:36,222 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:59:36,290 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-21 00:59:36,348 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-01-21 00:59:36,348 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:68 [2018-01-21 00:59:36,390 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 5239 column 44: unknown constant v_DerPreprocessor_1 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1362) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:582) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript$DiffTransformer.checkOrAddAxiom(DiffWrapperScript.java:95) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript$DiffTransformer.convertApplicationTerm(DiffWrapperScript.java:105) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:297) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:239) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:198) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:998) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:942) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:355) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:573) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:157) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-21 00:59:36,394 INFO L168 Benchmark]: Toolchain (without parser) took 2896.37 ms. Allocated memory was 304.6 MB in the beginning and 480.8 MB in the end (delta: 176.2 MB). Free memory was 262.9 MB in the beginning and 380.5 MB in the end (delta: -117.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 5.3 GB. [2018-01-21 00:59:36,395 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 304.6 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:59:36,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.30 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 249.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:59:36,398 INFO L168 Benchmark]: Boogie Preprocessor took 39.71 ms. Allocated memory is still 304.6 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:59:36,399 INFO L168 Benchmark]: RCFGBuilder took 350.87 ms. Allocated memory is still 304.6 MB. Free memory was 247.9 MB in the beginning and 224.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. [2018-01-21 00:59:36,399 INFO L168 Benchmark]: TraceAbstraction took 2283.53 ms. Allocated memory was 304.6 MB in the beginning and 480.8 MB in the end (delta: 176.2 MB). Free memory was 224.3 MB in the beginning and 380.5 MB in the end (delta: -156.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. [2018-01-21 00:59:36,401 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 304.6 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 216.30 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 249.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 39.71 ms. Allocated memory is still 304.6 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 350.87 ms. Allocated memory is still 304.6 MB. Free memory was 247.9 MB in the beginning and 224.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2283.53 ms. Allocated memory was 304.6 MB in the beginning and 480.8 MB in the end (delta: 176.2 MB). Free memory was 224.3 MB in the beginning and 380.5 MB in the end (delta: -156.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 42 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 560 LocStat_NO_SUPPORTING_DISEQUALITIES : 141 LocStat_NO_DISJUNCTIONS : -84 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 47 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 91 TransStat_NO_SUPPORTING_DISEQUALITIES : 13 TransStat_NO_DISJUNCTIONS : 51 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.210905 RENAME_VARIABLES(MILLISECONDS) : 0.123121 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.157787 PROJECTAWAY(MILLISECONDS) : 0.065862 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001702 DISJOIN(MILLISECONDS) : 0.928530 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.155118 ADD_EQUALITY(MILLISECONDS) : 0.039844 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.020614 #CONJOIN_DISJUNCTIVE : 80 #RENAME_VARIABLES : 114 #UNFREEZE : 0 #CONJOIN : 160 #PROJECTAWAY : 106 #ADD_WEAK_EQUALITY : 36 #DISJOIN : 2 #RENAME_VARIABLES_DISJUNCTIVE : 108 #ADD_EQUALITY : 103 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 3 procedures, 69 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=69occurred 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 - ExceptionOrErrorResult: SMTLIBException: line 5239 column 44: unknown constant v_DerPreprocessor_1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 5239 column 44: unknown constant v_DerPreprocessor_1: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1362) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_00-59-36-411.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-21_00-59-36-411.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-21_00-59-36-411.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_00-59-36-411.csv Received shutdown request...