java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 23:24:14,481 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 23:24:14,483 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 23:24:14,496 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 23:24:14,496 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 23:24:14,497 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 23:24:14,498 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 23:24:14,499 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 23:24:14,501 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 23:24:14,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 23:24:14,502 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 23:24:14,502 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 23:24:14,503 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 23:24:14,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 23:24:14,504 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 23:24:14,507 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 23:24:14,510 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 23:24:14,512 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 23:24:14,513 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 23:24:14,514 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 23:24:14,517 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-20 23:24:14,522 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 23:24:14,523 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 23:24:14,523 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-20 23:24:14,533 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 23:24:14,534 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 23:24:14,534 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 23:24:14,535 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 23:24:14,535 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 23:24:14,535 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 23:24:14,535 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 23:24:14,536 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 23:24:14,536 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 23:24:14,537 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 23:24:14,537 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 23:24:14,537 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 23:24:14,537 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 23:24:14,537 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 23:24:14,537 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 23:24:14,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 23:24:14,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 23:24:14,538 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 23:24:14,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 23:24:14,538 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 23:24:14,539 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 23:24:14,539 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 23:24:14,539 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 23:24:14,539 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 23:24:14,539 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 23:24:14,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 23:24:14,540 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 23:24:14,540 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 23:24:14,540 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 23:24:14,540 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 23:24:14,541 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 23:24:14,541 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-20 23:24:14,541 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 23:24:14,541 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 23:24:14,541 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 23:24:14,541 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-20 23:24:14,542 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 23:24:14,543 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 23:24:14,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 23:24:14,592 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 23:24:14,596 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 23:24:14,598 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 23:24:14,598 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 23:24:14,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-01-20 23:24:14,777 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 23:24:14,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 23:24:14,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 23:24:14,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 23:24:14,788 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 23:24:14,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:14,792 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 20.01 11:24:14, skipping insertion in model container [2018-01-20 23:24:14,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:14,807 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:24:14,846 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:24:14,962 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:24:14,975 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:24:14,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14 WrapperNode [2018-01-20 23:24:14,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 23:24:14,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 23:24:14,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 23:24:14,982 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 23:24:14,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:14,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:15,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:15,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:15,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:15,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:15,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (1/1) ... [2018-01-20 23:24:15,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 23:24:15,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 23:24:15,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 23:24:15,015 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 23:24:15,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (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 [2018-01-20 23:24:15,057 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 23:24:15,057 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 23:24:15,057 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-01-20 23:24:15,057 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 23:24:15,057 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 23:24:15,057 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 23:24:15,057 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 23:24:15,057 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 23:24:15,057 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 23:24:15,058 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 23:24:15,058 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-01-20 23:24:15,058 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 23:24:15,058 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 23:24:15,058 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 23:24:15,246 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 23:24:15,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:24:15 BoogieIcfgContainer [2018-01-20 23:24:15,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 23:24:15,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 23:24:15,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 23:24:15,249 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 23:24:15,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 11:24:14" (1/3) ... [2018-01-20 23:24:15,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4802dfce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:24:15, skipping insertion in model container [2018-01-20 23:24:15,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:24:14" (2/3) ... [2018-01-20 23:24:15,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4802dfce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:24:15, skipping insertion in model container [2018-01-20 23:24:15,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:24:15" (3/3) ... [2018-01-20 23:24:15,252 INFO L105 eAbstractionObserver]: Analyzing ICFG cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-01-20 23:24:15,259 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 23:24:15,264 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-20 23:24:15,313 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:24:15,313 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:24:15,313 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:24:15,313 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:24:15,313 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:24:15,313 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:24:15,314 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:24:15,314 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == cstrcpyErr0EnsuresViolation======== [2018-01-20 23:24:15,315 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:24:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:24:15,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-20 23:24:15,337 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:24:15,338 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:24:15,338 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcpyErr0EnsuresViolation]=== [2018-01-20 23:24:15,342 INFO L82 PathProgramCache]: Analyzing trace with hash -111874170, now seen corresponding path program 1 times [2018-01-20 23:24:15,344 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:24:15,387 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,387 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:24:15,387 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,387 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:24:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:24:15,451 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:24:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:24:15,502 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:24:15,503 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:24:15,503 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:24:15,505 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 23:24:15,520 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 23:24:15,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 23:24:15,523 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-01-20 23:24:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:24:15,542 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-01-20 23:24:15,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 23:24:15,543 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-01-20 23:24:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:24:15,549 INFO L225 Difference]: With dead ends: 51 [2018-01-20 23:24:15,549 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:24:15,552 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 [2018-01-20 23:24:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:24:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:24:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:24:15,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:24:15,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-01-20 23:24:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:24:15,659 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:24:15,659 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 23:24:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:24:15,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:24:15,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-20 23:24:15,682 INFO L401 ceAbstractionStarter]: For program point L544'''(line 544) no Hoare annotation was computed. [2018-01-20 23:24:15,682 INFO L401 ceAbstractionStarter]: For program point L544(lines 544 545) no Hoare annotation was computed. [2018-01-20 23:24:15,683 INFO L401 ceAbstractionStarter]: For program point cstrcpyFINAL(lines 540 547) no Hoare annotation was computed. [2018-01-20 23:24:15,683 INFO L401 ceAbstractionStarter]: For program point cstrcpyEXIT(lines 540 547) no Hoare annotation was computed. [2018-01-20 23:24:15,683 INFO L401 ceAbstractionStarter]: For program point cstrcpyErr0EnsuresViolation(lines 540 547) no Hoare annotation was computed. [2018-01-20 23:24:15,683 INFO L401 ceAbstractionStarter]: For program point L544''''''(lines 544 545) no Hoare annotation was computed. [2018-01-20 23:24:15,683 INFO L401 ceAbstractionStarter]: For program point L544'(line 544) no Hoare annotation was computed. [2018-01-20 23:24:15,684 INFO L404 ceAbstractionStarter]: At program point L544'''''(lines 544 545) the Hoare annotation is: true [2018-01-20 23:24:15,684 INFO L401 ceAbstractionStarter]: For program point L544''(line 544) no Hoare annotation was computed. [2018-01-20 23:24:15,684 INFO L404 ceAbstractionStarter]: At program point cstrcpyENTRY(lines 540 547) the Hoare annotation is: true [2018-01-20 23:24:15,684 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 563) no Hoare annotation was computed. [2018-01-20 23:24:15,684 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 563) no Hoare annotation was computed. [2018-01-20 23:24:15,685 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 563) the Hoare annotation is: true [2018-01-20 23:24:15,685 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 563) no Hoare annotation was computed. [2018-01-20 23:24:15,685 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 563) the Hoare annotation is: true [2018-01-20 23:24:15,685 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 563) no Hoare annotation was computed. [2018-01-20 23:24:15,685 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 563) the Hoare annotation is: true [2018-01-20 23:24:15,685 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 563) no Hoare annotation was computed. [2018-01-20 23:24:15,686 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 563) no Hoare annotation was computed. [2018-01-20 23:24:15,686 INFO L401 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-01-20 23:24:15,686 INFO L401 ceAbstractionStarter]: For program point L561(line 561) no Hoare annotation was computed. [2018-01-20 23:24:15,686 INFO L401 ceAbstractionStarter]: For program point L551''(lines 551 553) no Hoare annotation was computed. [2018-01-20 23:24:15,686 INFO L401 ceAbstractionStarter]: For program point L559'''(line 559) no Hoare annotation was computed. [2018-01-20 23:24:15,686 INFO L401 ceAbstractionStarter]: For program point L554'(lines 554 556) no Hoare annotation was computed. [2018-01-20 23:24:15,686 INFO L401 ceAbstractionStarter]: For program point L558''(line 558) no Hoare annotation was computed. [2018-01-20 23:24:15,687 INFO L401 ceAbstractionStarter]: For program point L559''(line 559) no Hoare annotation was computed. [2018-01-20 23:24:15,687 INFO L401 ceAbstractionStarter]: For program point L558'(line 558) no Hoare annotation was computed. [2018-01-20 23:24:15,687 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 548 563) no Hoare annotation was computed. [2018-01-20 23:24:15,687 INFO L404 ceAbstractionStarter]: At program point L560'(line 560) the Hoare annotation is: true [2018-01-20 23:24:15,687 INFO L401 ceAbstractionStarter]: For program point L551(lines 551 553) no Hoare annotation was computed. [2018-01-20 23:24:15,687 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 548 563) no Hoare annotation was computed. [2018-01-20 23:24:15,688 INFO L401 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-01-20 23:24:15,688 INFO L401 ceAbstractionStarter]: For program point L558(line 558) no Hoare annotation was computed. [2018-01-20 23:24:15,688 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 548 563) no Hoare annotation was computed. [2018-01-20 23:24:15,688 INFO L404 ceAbstractionStarter]: At program point mainENTRY(lines 548 563) the Hoare annotation is: true [2018-01-20 23:24:15,688 INFO L401 ceAbstractionStarter]: For program point L558'''(line 558) no Hoare annotation was computed. [2018-01-20 23:24:15,688 INFO L401 ceAbstractionStarter]: For program point L559'(line 559) no Hoare annotation was computed. [2018-01-20 23:24:15,691 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:24:15,691 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:24:15,691 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:24:15,691 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:24:15,691 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:24:15,691 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:24:15,691 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:24:15,692 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 23:24:15,692 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:24:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:24:15,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 23:24:15,693 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:24:15,693 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 23:24:15,693 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 23:24:15,694 INFO L82 PathProgramCache]: Analyzing trace with hash 85210, now seen corresponding path program 1 times [2018-01-20 23:24:15,694 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:24:15,695 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,695 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:24:15,695 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,696 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:24:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:24:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:24:15,721 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:24:15,725 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:24:15,729 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:24:15,729 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:24:15,730 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:24:15,730 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:24:15,730 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:24:15,730 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:24:15,730 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:24:15,730 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 23:24:15,730 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:24:15,732 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:24:15,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-20 23:24:15,733 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:24:15,733 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:24:15,733 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:24:15,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1504828368, now seen corresponding path program 1 times [2018-01-20 23:24:15,734 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:24:15,735 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,735 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:24:15,735 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,735 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:24:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:24:15,748 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:24:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:24:15,784 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:24:15,784 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 23:24:15,784 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:24:15,784 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 23:24:15,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 23:24:15,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 23:24:15,785 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 4 states. [2018-01-20 23:24:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:24:15,845 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2018-01-20 23:24:15,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 23:24:15,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-01-20 23:24:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:24:15,852 INFO L225 Difference]: With dead ends: 55 [2018-01-20 23:24:15,852 INFO L226 Difference]: Without dead ends: 36 [2018-01-20 23:24:15,852 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 23:24:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-20 23:24:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-01-20 23:24:15,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-01-20 23:24:15,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-01-20 23:24:15,865 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 12 [2018-01-20 23:24:15,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:24:15,865 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-01-20 23:24:15,865 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 23:24:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-01-20 23:24:15,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-20 23:24:15,866 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:24:15,866 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:24:15,866 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:24:15,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1502981326, now seen corresponding path program 1 times [2018-01-20 23:24:15,866 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:24:15,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,867 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:24:15,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,868 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:24:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:24:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:24:15,893 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:24:15,896 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:24:15,897 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:24:15,897 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:24:15,903 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:24:15,903 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:24:15,904 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:24:15,904 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:24:15,904 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:24:15,904 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:24:15,904 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:24:15,904 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 23:24:15,904 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:24:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:24:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-20 23:24:15,906 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:24:15,906 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:24:15,907 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 23:24:15,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1987258707, now seen corresponding path program 1 times [2018-01-20 23:24:15,907 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:24:15,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,908 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:24:15,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:15,908 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:24:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:24:15,918 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:24:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:24:15,975 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:24:15,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 23:24:15,975 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:24:15,975 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 23:24:15,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 23:24:15,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 23:24:15,976 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 4 states. [2018-01-20 23:24:16,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:24:16,038 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2018-01-20 23:24:16,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 23:24:16,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-01-20 23:24:16,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:24:16,040 INFO L225 Difference]: With dead ends: 55 [2018-01-20 23:24:16,040 INFO L226 Difference]: Without dead ends: 34 [2018-01-20 23:24:16,041 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 23:24:16,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-01-20 23:24:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-01-20 23:24:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-01-20 23:24:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-01-20 23:24:16,046 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 10 [2018-01-20 23:24:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:24:16,046 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-01-20 23:24:16,047 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 23:24:16,047 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-01-20 23:24:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-20 23:24:16,047 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:24:16,047 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:24:16,048 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-20 23:24:16,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1987260629, now seen corresponding path program 1 times [2018-01-20 23:24:16,048 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:24:16,049 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:16,049 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:24:16,049 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:16,049 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:24:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:24:16,058 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:24:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:24:16,087 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:24:16,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:24:16,087 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:24:16,087 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:24:16,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:24:16,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:24:16,088 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 3 states. [2018-01-20 23:24:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:24:16,141 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-01-20 23:24:16,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:24:16,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-01-20 23:24:16,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:24:16,143 INFO L225 Difference]: With dead ends: 34 [2018-01-20 23:24:16,143 INFO L226 Difference]: Without dead ends: 32 [2018-01-20 23:24:16,144 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:24:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-01-20 23:24:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-01-20 23:24:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-20 23:24:16,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-01-20 23:24:16,150 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 10 [2018-01-20 23:24:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:24:16,151 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-01-20 23:24:16,151 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:24:16,151 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-01-20 23:24:16,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-20 23:24:16,152 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:24:16,152 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] [2018-01-20 23:24:16,152 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation]=== [2018-01-20 23:24:16,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1363586940, now seen corresponding path program 1 times [2018-01-20 23:24:16,153 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:24:16,154 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:16,154 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:24:16,154 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:24:16,154 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:24:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:24:16,181 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:24:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:24:16,346 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:24:16,346 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-20 23:24:16,346 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:24:16,347 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-20 23:24:16,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-20 23:24:16,347 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-20 23:24:16,348 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 6 states. [2018-01-20 23:24:16,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:24:16,512 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-01-20 23:24:16,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-20 23:24:16,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-01-20 23:24:16,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:24:16,514 INFO L225 Difference]: With dead ends: 31 [2018-01-20 23:24:16,514 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:24:16,515 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-20 23:24:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:24:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:24:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:24:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:24:16,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-01-20 23:24:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:24:16,516 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:24:16,516 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-20 23:24:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:24:16,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:24:16,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 11:24:16 BoogieIcfgContainer [2018-01-20 23:24:16,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 23:24:16,521 INFO L168 Benchmark]: Toolchain (without parser) took 1743.85 ms. Allocated memory was 304.6 MB in the beginning and 467.7 MB in the end (delta: 163.1 MB). Free memory was 262.5 MB in the beginning and 368.7 MB in the end (delta: -106.2 MB). Peak memory consumption was 56.9 MB. Max. memory is 5.3 GB. [2018-01-20 23:24:16,522 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 304.6 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:24:16,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.46 ms. Allocated memory is still 304.6 MB. Free memory was 261.5 MB in the beginning and 251.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-20 23:24:16,523 INFO L168 Benchmark]: Boogie Preprocessor took 33.30 ms. Allocated memory is still 304.6 MB. Free memory was 251.5 MB in the beginning and 250.5 MB in the end (delta: 996.5 kB). Peak memory consumption was 996.5 kB. Max. memory is 5.3 GB. [2018-01-20 23:24:16,523 INFO L168 Benchmark]: RCFGBuilder took 231.77 ms. Allocated memory is still 304.6 MB. Free memory was 250.5 MB in the beginning and 234.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 5.3 GB. [2018-01-20 23:24:16,524 INFO L168 Benchmark]: TraceAbstraction took 1272.62 ms. Allocated memory was 304.6 MB in the beginning and 467.7 MB in the end (delta: 163.1 MB). Free memory was 233.5 MB in the beginning and 368.7 MB in the end (delta: -135.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 5.3 GB. [2018-01-20 23:24:16,526 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 304.6 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.46 ms. Allocated memory is still 304.6 MB. Free memory was 261.5 MB in the beginning and 251.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.30 ms. Allocated memory is still 304.6 MB. Free memory was 251.5 MB in the beginning and 250.5 MB in the end (delta: 996.5 kB). Peak memory consumption was 996.5 kB. Max. memory is 5.3 GB. * RCFGBuilder took 231.77 ms. Allocated memory is still 304.6 MB. Free memory was 250.5 MB in the beginning and 234.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1272.62 ms. Allocated memory was 304.6 MB in the beginning and 467.7 MB in the end (delta: 163.1 MB). Free memory was 233.5 MB in the beginning and 368.7 MB in the end (delta: -135.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: cstrcpyErr0EnsuresViolation CFG has 4 procedures, 37 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 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=37occurred 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: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 4 procedures, 37 locations, 4 error locations. UNSAFE Result, 0.0s 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=37occurred 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 - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L549] int length1 = __VERIFIER_nondet_int(); [L550] int length2 = __VERIFIER_nondet_int(); [L551] COND FALSE !(length1 < 1) VAL [length1=1, length2=2] [L554] COND FALSE !(length2 < 1) VAL [length1=1, length2=2] [L557] COND TRUE length1 < length2 [L557] return 0; - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 37 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 30 SDslu, 42 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 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: 548]: 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, 37 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 SDtfs, 53 SDslu, 74 SDs, 0 SdLazy, 99 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 5421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_23-24-16-535.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_23-24-16-535.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_23-24-16-535.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_23-24-16-535.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_23-24-16-535.csv Received shutdown request...