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_mostprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/diff-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 02:49:08,405 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 02:49:08,406 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 02:49:08,422 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 02:49:08,423 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 02:49:08,424 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 02:49:08,425 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 02:49:08,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 02:49:08,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 02:49:08,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 02:49:08,431 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 02:49:08,431 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 02:49:08,432 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 02:49:08,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 02:49:08,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 02:49:08,437 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 02:49:08,439 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 02:49:08,442 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 02:49:08,443 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 02:49:08,445 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 02:49:08,447 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 02:49:08,452 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 02:49:08,453 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 02:49:08,453 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_mostprecise.epf [2018-01-21 02:49:08,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 02:49:08,463 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 02:49:08,464 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 02:49:08,464 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 02:49:08,464 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 02:49:08,464 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 02:49:08,464 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 02:49:08,464 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 02:49:08,465 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 02:49:08,465 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 02:49:08,465 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 02:49:08,465 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 02:49:08,465 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 02:49:08,466 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 02:49:08,466 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 02:49:08,466 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 02:49:08,466 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 02:49:08,466 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 02:49:08,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 02:49:08,466 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 02:49:08,467 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 02:49:08,467 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 02:49:08,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 02:49:08,467 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 02:49:08,467 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 02:49:08,468 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 02:49:08,468 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 02:49:08,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 02:49:08,468 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 02:49:08,468 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 02:49:08,468 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 02:49:08,469 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 02:49:08,469 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 02:49:08,469 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 02:49:08,469 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 02:49:08,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 02:49:08,469 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 02:49:08,469 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 02:49:08,470 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 02:49:08,470 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 02:49:08,506 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 02:49:08,517 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 02:49:08,521 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 02:49:08,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 02:49:08,523 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 02:49:08,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/diff-alloca_true-valid-memsafety_true-termination.i [2018-01-21 02:49:08,735 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 02:49:08,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 02:49:08,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 02:49:08,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 02:49:08,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 02:49:08,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 02:49:08" (1/1) ... [2018-01-21 02:49:08,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba4cb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:08, skipping insertion in model container [2018-01-21 02:49:08,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 02:49:08" (1/1) ... [2018-01-21 02:49:08,770 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 02:49:08,829 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 02:49:08,992 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 02:49:09,017 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 02:49:09,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09 WrapperNode [2018-01-21 02:49:09,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 02:49:09,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 02:49:09,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 02:49:09,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 02:49:09,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (1/1) ... [2018-01-21 02:49:09,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (1/1) ... [2018-01-21 02:49:09,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (1/1) ... [2018-01-21 02:49:09,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (1/1) ... [2018-01-21 02:49:09,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (1/1) ... [2018-01-21 02:49:09,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (1/1) ... [2018-01-21 02:49:09,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (1/1) ... [2018-01-21 02:49:09,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 02:49:09,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 02:49:09,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 02:49:09,104 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 02:49:09,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (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 02:49:09,164 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 02:49:09,164 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 02:49:09,164 INFO L136 BoogieDeclarations]: Found implementation of procedure diff [2018-01-21 02:49:09,164 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 02:49:09,164 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 02:49:09,164 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 02:49:09,165 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 02:49:09,165 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 02:49:09,165 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 02:49:09,165 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 02:49:09,165 INFO L128 BoogieDeclarations]: Found specification of procedure diff [2018-01-21 02:49:09,165 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 02:49:09,165 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 02:49:09,166 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 02:49:09,392 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 02:49:09,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 02:49:09 BoogieIcfgContainer [2018-01-21 02:49:09,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 02:49:09,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 02:49:09,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 02:49:09,397 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 02:49:09,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 02:49:08" (1/3) ... [2018-01-21 02:49:09,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec476da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 02:49:09, skipping insertion in model container [2018-01-21 02:49:09,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:49:09" (2/3) ... [2018-01-21 02:49:09,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec476da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 02:49:09, skipping insertion in model container [2018-01-21 02:49:09,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 02:49:09" (3/3) ... [2018-01-21 02:49:09,401 INFO L105 eAbstractionObserver]: Analyzing ICFG diff-alloca_true-valid-memsafety_true-termination.i [2018-01-21 02:49:09,408 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 02:49:09,414 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 02:49:09,455 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:49:09,455 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:49:09,455 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:49:09,455 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:49:09,455 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:49:09,456 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:49:09,456 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:49:09,456 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 02:49:09,457 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:49:09,477 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 02:49:09,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 02:49:09,483 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:49:09,484 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 02:49:09,484 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 02:49:09,488 INFO L82 PathProgramCache]: Analyzing trace with hash 109556, now seen corresponding path program 1 times [2018-01-21 02:49:09,490 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:49:09,533 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:09,533 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:49:09,533 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:09,534 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:49:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 02:49:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 02:49:09,588 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 02:49:09,594 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 02:49:09,601 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:49:09,601 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:49:09,602 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:49:09,602 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:49:09,602 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:49:09,602 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:49:09,602 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:49:09,602 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 02:49:09,602 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:49:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 02:49:09,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 02:49:09,605 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:49:09,605 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 02:49:09,605 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 02:49:09,606 INFO L82 PathProgramCache]: Analyzing trace with hash 661572557, now seen corresponding path program 1 times [2018-01-21 02:49:09,606 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:49:09,607 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:09,607 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:49:09,607 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:09,607 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:49:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:49:09,651 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:49:09,701 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 02:49:09,703 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:49:09,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 02:49:09,703 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:49:09,705 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 02:49:09,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 02:49:09,718 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 02:49:09,721 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-01-21 02:49:09,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:49:09,834 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2018-01-21 02:49:09,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 02:49:09,836 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2018-01-21 02:49:09,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:49:09,848 INFO L225 Difference]: With dead ends: 72 [2018-01-21 02:49:09,849 INFO L226 Difference]: Without dead ends: 41 [2018-01-21 02:49:09,853 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 02:49:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-21 02:49:09,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-21 02:49:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-21 02:49:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-01-21 02:49:09,896 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 29 [2018-01-21 02:49:09,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:49:09,897 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-01-21 02:49:09,897 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 02:49:09,897 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-01-21 02:49:09,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-21 02:49:09,899 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:49:09,899 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] [2018-01-21 02:49:09,899 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 02:49:09,899 INFO L82 PathProgramCache]: Analyzing trace with hash -853617319, now seen corresponding path program 1 times [2018-01-21 02:49:09,899 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:49:09,901 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:09,901 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:49:09,901 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:09,901 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:49:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:49:09,932 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:49:10,060 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 02:49:10,060 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:49:10,061 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 02:49:10,061 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:49:10,062 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 02:49:10,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 02:49:10,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 02:49:10,063 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 5 states. [2018-01-21 02:49:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:49:10,152 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2018-01-21 02:49:10,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 02:49:10,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-01-21 02:49:10,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:49:10,155 INFO L225 Difference]: With dead ends: 66 [2018-01-21 02:49:10,155 INFO L226 Difference]: Without dead ends: 53 [2018-01-21 02:49:10,156 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 02:49:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-21 02:49:10,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2018-01-21 02:49:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-01-21 02:49:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-01-21 02:49:10,164 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 30 [2018-01-21 02:49:10,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:49:10,164 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-01-21 02:49:10,165 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 02:49:10,165 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2018-01-21 02:49:10,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-01-21 02:49:10,166 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:49:10,167 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] [2018-01-21 02:49:10,168 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 02:49:10,168 INFO L82 PathProgramCache]: Analyzing trace with hash 167900261, now seen corresponding path program 1 times [2018-01-21 02:49:10,168 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:49:10,169 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:10,169 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:49:10,169 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:10,170 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:49:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:49:10,191 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:49:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 02:49:10,222 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:49:10,222 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 02:49:10,222 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:49:10,223 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 02:49:10,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 02:49:10,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 02:49:10,224 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 3 states. [2018-01-21 02:49:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:49:10,249 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-01-21 02:49:10,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 02:49:10,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-01-21 02:49:10,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:49:10,253 INFO L225 Difference]: With dead ends: 76 [2018-01-21 02:49:10,253 INFO L226 Difference]: Without dead ends: 51 [2018-01-21 02:49:10,254 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 02:49:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-21 02:49:10,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2018-01-21 02:49:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-21 02:49:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2018-01-21 02:49:10,260 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 36 [2018-01-21 02:49:10,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:49:10,260 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2018-01-21 02:49:10,260 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 02:49:10,261 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2018-01-21 02:49:10,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-21 02:49:10,261 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:49:10,262 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] [2018-01-21 02:49:10,262 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 02:49:10,262 INFO L82 PathProgramCache]: Analyzing trace with hash 562606371, now seen corresponding path program 1 times [2018-01-21 02:49:10,262 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:49:10,263 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:10,263 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:49:10,263 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:49:10,263 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:49:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:49:10,288 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:49:10,374 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 02:49:10,374 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 02:49:10,374 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 02:49:10,375 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-01-21 02:49:10,377 INFO L201 CegarAbsIntRunner]: [0], [1], [6], [7], [11], [15], [17], [21], [25], [41], [42], [43], [44], [48], [52], [54], [57], [65], [67], [68], [69], [70], [71], [72], [74], [75], [76], [77], [78], [79], [80], [81], [83], [84], [85], [86], [87], [88] [2018-01-21 02:49:10,428 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 02:49:10,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 02:50:18,377 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 02:50:18,378 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 02:50:18,379 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 02:50:18,379 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 02:50:18,379 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 02:50:18,389 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:50:18,389 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 02:50:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:50:18,450 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 02:50:18,460 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 02:50:18,460 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 02:50:18,464 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:50:18,465 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:50:18,465 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:50:18,465 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:50:18,465 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:50:18,465 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:50:18,465 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:50:18,465 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == diffErr0EnsuresViolation======== [2018-01-21 02:50:18,465 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:50:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 02:50:18,471 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 02:50:18,472 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:50:18,473 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:50:18,473 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:50:18,473 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:50:18,478 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:50:18,478 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:50:18,478 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:50:18,478 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 02:50:18,478 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:50:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 02:50:18,479 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 02:50:18,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 02:50:18 BoogieIcfgContainer [2018-01-21 02:50:18,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 02:50:18,482 INFO L168 Benchmark]: Toolchain (without parser) took 69745.30 ms. Allocated memory was 307.8 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 264.5 MB in the beginning and 315.5 MB in the end (delta: -51.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-01-21 02:50:18,483 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 307.8 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 02:50:18,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.06 ms. Allocated memory is still 307.8 MB. Free memory was 264.5 MB in the beginning and 254.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 02:50:18,483 INFO L168 Benchmark]: Boogie Preprocessor took 67.14 ms. Allocated memory is still 307.8 MB. Free memory was 254.5 MB in the beginning and 252.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 02:50:18,484 INFO L168 Benchmark]: RCFGBuilder took 290.05 ms. Allocated memory is still 307.8 MB. Free memory was 252.5 MB in the beginning and 233.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 5.3 GB. [2018-01-21 02:50:18,484 INFO L168 Benchmark]: TraceAbstraction took 69086.33 ms. Allocated memory was 307.8 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 233.5 MB in the beginning and 315.5 MB in the end (delta: -82.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-01-21 02:50:18,486 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 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 286.06 ms. Allocated memory is still 307.8 MB. Free memory was 264.5 MB in the beginning and 254.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 67.14 ms. Allocated memory is still 307.8 MB. Free memory was 254.5 MB in the beginning and 252.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 290.05 ms. Allocated memory is still 307.8 MB. Free memory was 252.5 MB in the beginning and 233.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 69086.33 ms. Allocated memory was 307.8 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 233.5 MB in the beginning and 315.5 MB in the end (delta: -82.0 MB). Peak memory consumption was 1.4 GB. 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 4 procedures, 45 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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 40 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 45 locations, 4 error locations. TIMEOUT Result, 68.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 133 SDtfs, 36 SDslu, 129 SDs, 0 SdLazy, 36 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 68.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 3988 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: 540]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 540). Cancelled while IsEmpty was searching accepting run (input had 45 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: diffErr0EnsuresViolation CFG has 4 procedures, 45 locations, 4 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=45occurred 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 - TimeoutResultAtElement [Line: 564]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 564). Cancelled while IsEmpty was searching accepting run (input had 45 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 45 locations, 4 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=45occurred 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/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_02-50-18-497.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_02-50-18-497.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_02-50-18-497.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_02-50-18-497.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_02-50-18-497.csv Completed graceful shutdown