java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:01:16,238 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:01:16,240 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:01:16,256 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:01:16,256 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:01:16,257 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:01:16,258 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:01:16,259 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:01:16,261 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:01:16,262 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:01:16,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 00:01:16,263 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 00:01:16,264 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 00:01:16,265 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 00:01:16,266 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 00:01:16,269 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 00:01:16,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 00:01:16,273 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 00:01:16,274 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 00:01:16,276 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 00:01:16,278 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 00:01:16,278 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 00:01:16,278 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 00:01:16,279 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 00:01:16,280 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 00:01:16,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 00:01:16,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 00:01:16,283 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 00:01:16,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 00:01:16,283 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 00:01:16,284 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 00:01:16,284 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-21 00:01:16,292 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:01:16,293 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:01:16,293 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:01:16,294 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:01:16,294 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:01:16,294 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:01:16,294 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:01:16,294 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:01:16,295 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:01:16,295 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:01:16,295 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:01:16,295 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:01:16,295 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:01:16,295 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:01:16,296 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:01:16,296 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:01:16,296 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:01:16,296 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:01:16,296 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:01:16,296 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:01:16,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:01:16,297 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:01:16,297 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:01:16,297 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:01:16,297 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:01:16,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:01:16,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:01:16,298 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:01:16,299 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:01:16,299 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:01:16,299 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:01:16,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:01:16,343 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:01:16,346 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:01:16,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:01:16,348 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:01:16,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-01-21 00:01:16,512 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:01:16,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:01:16,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:01:16,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:01:16,522 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:01:16,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167329f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16, skipping insertion in model container [2018-01-21 00:01:16,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,541 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:01:16,581 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:01:16,699 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:01:16,724 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:01:16,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16 WrapperNode [2018-01-21 00:01:16,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:01:16,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:01:16,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:01:16,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:01:16,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (1/1) ... [2018-01-21 00:01:16,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:01:16,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:01:16,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:01:16,777 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:01:16,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (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 00:01:16,821 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:01:16,821 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:01:16,821 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:01:16,821 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:01:16,821 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:01:16,821 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:01:16,821 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:01:16,822 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:01:17,239 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:01:17,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:01:17 BoogieIcfgContainer [2018-01-21 00:01:17,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:01:17,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:01:17,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:01:17,243 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:01:17,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:01:16" (1/3) ... [2018-01-21 00:01:17,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495188cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:01:17, skipping insertion in model container [2018-01-21 00:01:17,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:01:16" (2/3) ... [2018-01-21 00:01:17,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495188cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:01:17, skipping insertion in model container [2018-01-21 00:01:17,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:01:17" (3/3) ... [2018-01-21 00:01:17,248 INFO L105 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-01-21 00:01:17,258 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:01:17,265 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 00:01:17,315 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:17,316 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:17,316 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:17,316 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:17,316 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:17,316 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:17,316 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:17,317 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:01:17,317 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2018-01-21 00:01:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:01:17,343 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:01:17,344 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:01:17,344 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:01:17,348 INFO L82 PathProgramCache]: Analyzing trace with hash 266896, now seen corresponding path program 1 times [2018-01-21 00:01:17,350 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:01:17,402 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:17,402 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:01:17,402 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:17,402 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:01:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:01:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:01:17,455 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:01:17,461 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:01:17,467 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:17,467 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:17,467 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:17,467 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:17,467 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:17,468 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:17,468 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:17,468 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:01:17,468 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2018-01-21 00:01:17,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-21 00:01:17,473 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:01:17,473 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] [2018-01-21 00:01:17,473 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:01:17,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1589472515, now seen corresponding path program 1 times [2018-01-21 00:01:17,473 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:01:17,475 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:17,475 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:01:17,476 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:17,476 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:01:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:01:17,517 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:01:17,665 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 00:01:17,666 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:01:17,666 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 00:01:17,667 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:01:17,669 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 00:01:17,679 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 00:01:17,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:01:17,681 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2018-01-21 00:01:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:01:17,703 INFO L93 Difference]: Finished difference Result 175 states and 233 transitions. [2018-01-21 00:01:17,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 00:01:17,705 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-01-21 00:01:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:01:17,717 INFO L225 Difference]: With dead ends: 175 [2018-01-21 00:01:17,717 INFO L226 Difference]: Without dead ends: 93 [2018-01-21 00:01:17,721 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 00:01:17,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-01-21 00:01:17,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-01-21 00:01:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-01-21 00:01:17,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2018-01-21 00:01:17,758 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 26 [2018-01-21 00:01:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:01:17,758 INFO L432 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2018-01-21 00:01:17,758 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 00:01:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2018-01-21 00:01:17,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 00:01:17,760 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:01:17,760 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 00:01:17,760 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:01:17,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2068816306, now seen corresponding path program 1 times [2018-01-21 00:01:17,760 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:01:17,762 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:17,762 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:01:17,762 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:17,762 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:01:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:01:17,797 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:01:17,920 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 00:01:17,920 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:01:17,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-21 00:01:17,921 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:01:17,922 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-21 00:01:17,923 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-21 00:01:17,923 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-21 00:01:17,923 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand 8 states. [2018-01-21 00:01:18,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:01:18,356 INFO L93 Difference]: Finished difference Result 152 states and 165 transitions. [2018-01-21 00:01:18,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-21 00:01:18,356 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-01-21 00:01:18,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:01:18,362 INFO L225 Difference]: With dead ends: 152 [2018-01-21 00:01:18,362 INFO L226 Difference]: Without dead ends: 133 [2018-01-21 00:01:18,363 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-01-21 00:01:18,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-01-21 00:01:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 95. [2018-01-21 00:01:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-01-21 00:01:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2018-01-21 00:01:18,374 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 35 [2018-01-21 00:01:18,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:01:18,375 INFO L432 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2018-01-21 00:01:18,375 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-21 00:01:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2018-01-21 00:01:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-21 00:01:18,376 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:01:18,377 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] [2018-01-21 00:01:18,377 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:01:18,377 INFO L82 PathProgramCache]: Analyzing trace with hash -308441856, now seen corresponding path program 1 times [2018-01-21 00:01:18,377 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:01:18,379 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:18,379 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:01:18,379 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:18,379 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:01:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:01:18,403 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:01:18,525 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 00:01:18,525 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:01:18,525 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-21 00:01:18,525 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:01:18,526 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-21 00:01:18,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-21 00:01:18,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-21 00:01:18,526 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand 8 states. [2018-01-21 00:01:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:01:18,787 INFO L93 Difference]: Finished difference Result 130 states and 138 transitions. [2018-01-21 00:01:18,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-21 00:01:18,787 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-01-21 00:01:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:01:18,789 INFO L225 Difference]: With dead ends: 130 [2018-01-21 00:01:18,789 INFO L226 Difference]: Without dead ends: 125 [2018-01-21 00:01:18,790 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2018-01-21 00:01:18,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-01-21 00:01:18,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 97. [2018-01-21 00:01:18,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-01-21 00:01:18,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2018-01-21 00:01:18,799 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 41 [2018-01-21 00:01:18,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:01:18,800 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2018-01-21 00:01:18,800 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-21 00:01:18,800 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2018-01-21 00:01:18,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-01-21 00:01:18,802 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:01:18,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:01:18,802 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:01:18,803 INFO L82 PathProgramCache]: Analyzing trace with hash 12114035, now seen corresponding path program 1 times [2018-01-21 00:01:18,803 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:01:18,804 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:18,804 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:01:18,804 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:01:18,804 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:01:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:01:18,827 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:01:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-21 00:01:19,206 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:01:19,206 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:01:19,207 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 50 with the following transitions: [2018-01-21 00:01:19,209 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [14], [16], [19], [104], [108], [113], [117], [125], [126], [131], [135], [143], [147], [149], [150], [193], [195], [196], [202], [206], [208], [209], [220], [221], [222], [223], [224], [229], [230], [232], [233], [238], [239], [240], [241], [242] [2018-01-21 00:01:19,263 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:01:19,264 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 00:02:24,637 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 00:02:24,638 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 00:02:24,639 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:02:24,639 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:02:24,639 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 00:02:24,645 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:02:24,646 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:02:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:02:24,689 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:02:24,693 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 00:02:24,694 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:02:24,697 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:02:24,697 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:02:24,697 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:02:24,697 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:02:24,697 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:02:24,698 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:02:24,698 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:02:24,698 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 00:02:24,698 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:02:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2018-01-21 00:02:24,700 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:02:24,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:02:24 BoogieIcfgContainer [2018-01-21 00:02:24,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 00:02:24,702 INFO L168 Benchmark]: Toolchain (without parser) took 68189.89 ms. Allocated memory was 307.8 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 265.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 714.5 MB. Max. memory is 5.3 GB. [2018-01-21 00:02:24,703 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 307.8 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:02:24,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.20 ms. Allocated memory is still 307.8 MB. Free memory was 265.1 MB in the beginning and 253.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:02:24,704 INFO L168 Benchmark]: Boogie Preprocessor took 40.55 ms. Allocated memory is still 307.8 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:02:24,704 INFO L168 Benchmark]: RCFGBuilder took 463.12 ms. Allocated memory is still 307.8 MB. Free memory was 251.1 MB in the beginning and 220.6 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 5.3 GB. [2018-01-21 00:02:24,704 INFO L168 Benchmark]: TraceAbstraction took 67460.73 ms. Allocated memory was 307.8 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 220.6 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 670.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:02:24,706 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 307.8 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.20 ms. Allocated memory is still 307.8 MB. Free memory was 265.1 MB in the beginning and 253.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.55 ms. Allocated memory is still 307.8 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 463.12 ms. Allocated memory is still 307.8 MB. Free memory was 251.1 MB in the beginning and 220.6 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 67460.73 ms. Allocated memory was 307.8 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 220.6 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 670.0 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) * 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, 96 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=96occurred 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 - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while BasicCegarLoop was analyzing trace of length 50 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 3 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 3 procedures, 96 locations, 3 error locations. TIMEOUT Result, 67.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 231 SDtfs, 1004 SDslu, 255 SDs, 0 SdLazy, 267 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 65.4s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 66 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 8583 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 - TimeoutResultAtElement [Line: 985]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 985). Cancelled while IsEmpty was searching accepting run (input had 96 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 3 procedures, 96 locations, 3 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred 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: 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/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_00-02-24-713.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_00-02-24-713.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_00-02-24-713.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_00-02-24-713.csv Completed graceful shutdown