java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/array-memsafety/insertionsort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 08:16:17,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 08:16:17,517 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 08:16:17,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 08:16:17,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 08:16:17,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 08:16:17,533 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 08:16:17,534 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 08:16:17,536 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 08:16:17,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 08:16:17,537 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 08:16:17,537 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 08:16:17,538 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 08:16:17,539 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 08:16:17,539 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 08:16:17,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 08:16:17,544 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 08:16:17,546 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 08:16:17,548 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 08:16:17,549 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 08:16:17,551 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 08:16:17,551 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 08:16:17,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 08:16:17,553 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 08:16:17,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 08:16:17,555 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 08:16:17,555 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 08:16:17,556 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 08:16:17,556 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 08:16:17,556 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 08:16:17,557 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 08:16:17,557 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-21 08:16:17,567 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 08:16:17,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 08:16:17,568 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 08:16:17,569 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 08:16:17,569 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 08:16:17,569 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 08:16:17,569 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-21 08:16:17,569 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 08:16:17,569 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 08:16:17,570 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 08:16:17,570 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 08:16:17,571 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 08:16:17,571 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 08:16:17,571 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 08:16:17,571 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 08:16:17,571 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 08:16:17,571 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 08:16:17,572 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 08:16:17,572 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 08:16:17,572 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 08:16:17,572 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 08:16:17,572 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 08:16:17,573 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 08:16:17,573 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 08:16:17,573 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 08:16:17,573 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 08:16:17,573 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 08:16:17,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:16:17,574 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 08:16:17,574 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 08:16:17,574 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 08:16:17,574 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 08:16:17,575 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 08:16:17,575 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 08:16:17,575 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 08:16:17,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 08:16:17,575 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 08:16:17,576 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 08:16:17,576 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 08:16:17,577 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 08:16:17,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 08:16:17,623 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 08:16:17,627 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 08:16:17,628 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 08:16:17,629 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 08:16:17,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/insertionsort-alloca_true-valid-memsafety_true-termination.i [2018-01-21 08:16:17,799 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 08:16:17,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 08:16:17,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 08:16:17,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 08:16:17,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 08:16:17,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:16:17" (1/1) ... [2018-01-21 08:16:17,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1266e3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:17, skipping insertion in model container [2018-01-21 08:16:17,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:16:17" (1/1) ... [2018-01-21 08:16:17,828 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:16:17,864 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:16:17,977 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:16:17,994 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:16:18,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18 WrapperNode [2018-01-21 08:16:18,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 08:16:18,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 08:16:18,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 08:16:18,003 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 08:16:18,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... [2018-01-21 08:16:18,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... [2018-01-21 08:16:18,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... [2018-01-21 08:16:18,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... [2018-01-21 08:16:18,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... [2018-01-21 08:16:18,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... [2018-01-21 08:16:18,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... [2018-01-21 08:16:18,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 08:16:18,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 08:16:18,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 08:16:18,039 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 08:16:18,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:16:18,091 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 08:16:18,092 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 08:16:18,092 INFO L136 BoogieDeclarations]: Found implementation of procedure insertionSort [2018-01-21 08:16:18,092 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 08:16:18,092 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 08:16:18,092 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 08:16:18,092 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 08:16:18,093 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 08:16:18,093 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 08:16:18,093 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 08:16:18,093 INFO L128 BoogieDeclarations]: Found specification of procedure insertionSort [2018-01-21 08:16:18,093 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 08:16:18,093 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 08:16:18,094 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 08:16:18,260 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 08:16:18,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:16:18 BoogieIcfgContainer [2018-01-21 08:16:18,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 08:16:18,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 08:16:18,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 08:16:18,263 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 08:16:18,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 08:16:17" (1/3) ... [2018-01-21 08:16:18,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a43678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:16:18, skipping insertion in model container [2018-01-21 08:16:18,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:16:18" (2/3) ... [2018-01-21 08:16:18,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a43678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:16:18, skipping insertion in model container [2018-01-21 08:16:18,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:16:18" (3/3) ... [2018-01-21 08:16:18,266 INFO L105 eAbstractionObserver]: Analyzing ICFG insertionsort-alloca_true-valid-memsafety_true-termination.i [2018-01-21 08:16:18,273 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 08:16:18,279 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 08:16:18,318 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:16:18,318 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:16:18,318 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:16:18,318 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:16:18,318 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:16:18,318 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:16:18,318 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:16:18,319 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 08:16:18,319 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:16:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:16:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 08:16:18,347 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:16:18,348 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 08:16:18,348 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 08:16:18,354 INFO L82 PathProgramCache]: Analyzing trace with hash 94180, now seen corresponding path program 1 times [2018-01-21 08:16:18,356 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:16:18,400 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,400 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:16:18,400 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,401 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:16:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:16:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:16:18,452 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:16:18,459 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:16:18,465 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:16:18,465 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:16:18,465 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:16:18,466 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:16:18,466 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:16:18,466 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:16:18,466 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:16:18,466 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == insertionSortErr0EnsuresViolation======== [2018-01-21 08:16:18,466 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:16:18,468 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:16:18,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 08:16:18,469 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:16:18,469 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:16:18,470 INFO L371 AbstractCegarLoop]: === Iteration 1 === [insertionSortErr0EnsuresViolation]=== [2018-01-21 08:16:18,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1672428057, now seen corresponding path program 1 times [2018-01-21 08:16:18,470 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:16:18,471 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,471 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:16:18,472 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,472 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:16:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:16:18,503 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:16:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:16:18,539 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:16:18,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:16:18,539 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:16:18,541 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:16:18,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:16:18,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:16:18,554 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-01-21 08:16:18,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:16:18,575 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2018-01-21 08:16:18,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:16:18,577 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-21 08:16:18,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:16:18,583 INFO L225 Difference]: With dead ends: 65 [2018-01-21 08:16:18,583 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:16:18,585 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:16:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:16:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:16:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:16:18,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:16:18,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-01-21 08:16:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:16:18,678 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:16:18,678 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:16:18,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:16:18,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:16:18,681 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:16:18,681 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:16:18,681 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:16:18,681 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:16:18,681 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:16:18,681 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:16:18,681 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:16:18,681 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 08:16:18,681 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:16:18,683 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:16:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-21 08:16:18,683 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:16:18,684 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:16:18,684 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:16:18,684 INFO L82 PathProgramCache]: Analyzing trace with hash -743904943, now seen corresponding path program 1 times [2018-01-21 08:16:18,684 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:16:18,685 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,685 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:16:18,685 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,685 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:16:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:16:18,700 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:16:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:16:18,718 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:16:18,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:16:18,718 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:16:18,719 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:16:18,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:16:18,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:16:18,720 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-01-21 08:16:18,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:16:18,725 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2018-01-21 08:16:18,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:16:18,725 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-01-21 08:16:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:16:18,728 INFO L225 Difference]: With dead ends: 65 [2018-01-21 08:16:18,728 INFO L226 Difference]: Without dead ends: 35 [2018-01-21 08:16:18,729 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:16:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-21 08:16:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-21 08:16:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-21 08:16:18,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-01-21 08:16:18,737 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 20 [2018-01-21 08:16:18,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:16:18,738 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-01-21 08:16:18,738 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:16:18,738 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-01-21 08:16:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-21 08:16:18,738 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:16:18,739 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:16:18,739 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:16:18,739 INFO L82 PathProgramCache]: Analyzing trace with hash -74213296, now seen corresponding path program 1 times [2018-01-21 08:16:18,739 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:16:18,740 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,740 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:16:18,740 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,740 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:16:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:16:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:16:18,778 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:16:18,783 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:16:18,785 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:16:18,786 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:16:18,786 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:16:18,795 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:16:18,795 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:16:18,795 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:16:18,795 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:16:18,795 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:16:18,795 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:16:18,795 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:16:18,796 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 08:16:18,796 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:16:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-01-21 08:16:18,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-21 08:16:18,797 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:16:18,797 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:16:18,798 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 08:16:18,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1290844581, now seen corresponding path program 1 times [2018-01-21 08:16:18,798 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:16:18,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,799 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:16:18,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,799 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:16:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:16:18,809 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:16:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:16:18,825 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:16:18,825 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:16:18,825 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:16:18,826 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:16:18,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:16:18,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:16:18,826 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-01-21 08:16:18,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:16:18,831 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2018-01-21 08:16:18,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:16:18,832 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-01-21 08:16:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:16:18,833 INFO L225 Difference]: With dead ends: 65 [2018-01-21 08:16:18,833 INFO L226 Difference]: Without dead ends: 33 [2018-01-21 08:16:18,834 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:16:18,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-01-21 08:16:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-01-21 08:16:18,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-01-21 08:16:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-01-21 08:16:18,839 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 18 [2018-01-21 08:16:18,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:16:18,839 INFO L432 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-01-21 08:16:18,839 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:16:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-01-21 08:16:18,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 08:16:18,840 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:16:18,841 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:16:18,841 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-21 08:16:18,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1318511516, now seen corresponding path program 1 times [2018-01-21 08:16:18,841 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:16:18,842 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,842 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:16:18,843 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:16:18,843 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:16:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:16:18,860 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:16:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:16:18,948 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:16:18,948 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 08:16:18,948 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:16:18,948 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 08:16:18,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 08:16:18,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 08:16:18,949 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 4 states. [2018-01-21 08:16:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:16:19,048 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-01-21 08:16:19,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 08:16:19,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-01-21 08:16:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:16:19,049 INFO L225 Difference]: With dead ends: 33 [2018-01-21 08:16:19,049 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:16:19,051 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 08:16:19,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:16:19,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:16:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:16:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:16:19,052 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-01-21 08:16:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:16:19,052 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:16:19,052 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 08:16:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:16:19,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:16:19,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 08:16:19 BoogieIcfgContainer [2018-01-21 08:16:19,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 08:16:19,056 INFO L168 Benchmark]: Toolchain (without parser) took 1256.42 ms. Allocated memory was 303.0 MB in the beginning and 462.9 MB in the end (delta: 159.9 MB). Free memory was 261.4 MB in the beginning and 401.9 MB in the end (delta: -140.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 5.3 GB. [2018-01-21 08:16:19,058 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:16:19,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.33 ms. Allocated memory is still 303.0 MB. Free memory was 260.4 MB in the beginning and 250.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:16:19,058 INFO L168 Benchmark]: Boogie Preprocessor took 35.97 ms. Allocated memory is still 303.0 MB. Free memory was 250.4 MB in the beginning and 248.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:16:19,059 INFO L168 Benchmark]: RCFGBuilder took 221.64 ms. Allocated memory is still 303.0 MB. Free memory was 248.4 MB in the beginning and 233.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-21 08:16:19,059 INFO L168 Benchmark]: TraceAbstraction took 794.33 ms. Allocated memory was 303.0 MB in the beginning and 462.9 MB in the end (delta: 159.9 MB). Free memory was 233.8 MB in the beginning and 401.9 MB in the end (delta: -168.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:16:19,061 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 197.33 ms. Allocated memory is still 303.0 MB. Free memory was 260.4 MB in the beginning and 250.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.97 ms. Allocated memory is still 303.0 MB. Free memory was 250.4 MB in the beginning and 248.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 221.64 ms. Allocated memory is still 303.0 MB. Free memory was 248.4 MB in the beginning and 233.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 794.33 ms. Allocated memory was 303.0 MB in the beginning and 462.9 MB in the end (delta: 159.9 MB). Free memory was 233.8 MB in the beginning and 401.9 MB in the end (delta: -168.1 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - 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, 39 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=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: insertionSortErr0EnsuresViolation CFG has 4 procedures, 39 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L552] int array_size = __VERIFIER_nondet_int(); [L553] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L554] array_size = 1 VAL [array_size=1] [L556] EXPR, FCALL __builtin_alloca (array_size * sizeof(int)) VAL [__builtin_alloca (array_size * sizeof(int))={7:0}, array_size=1] [L556] int* a = (int*) __builtin_alloca (array_size * sizeof(int)); VAL [__builtin_alloca (array_size * sizeof(int))={7:0}, a={7:0}, array_size=1] [L557] CALL insertionSort(a, array_size) VAL [\old(array_size)=1, a={7:0}] [L542] int i, j, index; [L543] i = 1 VAL [\old(array_size)=1, a={7:0}, a={7:0}, array_size=1, i=1] [L543] COND FALSE, RET !(i < array_size) VAL [\old(array_size)=1, a={7:0}, a={7:0}, array_size=1, i=1] [L557] insertionSort(a, array_size) VAL [__builtin_alloca (array_size * sizeof(int))={7:0}, a={7:0}, array_size=1] [L558] return 0; - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 39 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 551]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 39 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 71 SDtfs, 21 SDslu, 4 SDs, 0 SdLazy, 37 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/insertionsort-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_08-16-19-071.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/insertionsort-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_08-16-19-071.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/insertionsort-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_08-16-19-071.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/insertionsort-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_08-16-19-071.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/insertionsort-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_08-16-19-071.csv Received shutdown request...