java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 02:48:13,072 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 02:48:13,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 02:48:13,090 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 02:48:13,090 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 02:48:13,091 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 02:48:13,092 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 02:48:13,094 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 02:48:13,096 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 02:48:13,097 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 02:48:13,098 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 02:48:13,098 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 02:48:13,099 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 02:48:13,101 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 02:48:13,102 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 02:48:13,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 02:48:13,107 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 02:48:13,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 02:48:13,110 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 02:48:13,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 02:48:13,114 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 02:48:13,121 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf [2018-01-21 02:48:13,129 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 02:48:13,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 02:48:13,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 02:48:13,131 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 02:48:13,131 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 02:48:13,131 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 02:48:13,131 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 02:48:13,131 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 02:48:13,131 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 02:48:13,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 02:48:13,132 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 02:48:13,132 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 02:48:13,132 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 02:48:13,132 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 02:48:13,133 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 02:48:13,133 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 02:48:13,133 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 02:48:13,133 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 02:48:13,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 02:48:13,133 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 02:48:13,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 02:48:13,134 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 02:48:13,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 02:48:13,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 02:48:13,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 02:48:13,134 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 02:48:13,135 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 02:48:13,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 02:48:13,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 02:48:13,135 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 02:48:13,135 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 02:48:13,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 02:48:13,135 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 02:48:13,135 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 02:48:13,136 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 02:48:13,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 02:48:13,136 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 02:48:13,136 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 02:48:13,137 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 02:48:13,137 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 02:48:13,172 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 02:48:13,184 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 02:48:13,187 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 02:48:13,188 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 02:48:13,189 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 02:48:13,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-01-21 02:48:13,372 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 02:48:13,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 02:48:13,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 02:48:13,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 02:48:13,383 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 02:48:13,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4227c817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13, skipping insertion in model container [2018-01-21 02:48:13,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,401 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 02:48:13,439 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 02:48:13,561 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 02:48:13,580 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 02:48:13,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13 WrapperNode [2018-01-21 02:48:13,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 02:48:13,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 02:48:13,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 02:48:13,588 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 02:48:13,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... [2018-01-21 02:48:13,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 02:48:13,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 02:48:13,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 02:48:13,622 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 02:48:13,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 02:48:13,681 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 02:48:13,681 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 02:48:13,681 INFO L136 BoogieDeclarations]: Found implementation of procedure test_fun [2018-01-21 02:48:13,681 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 02:48:13,682 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 02:48:13,682 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 02:48:13,682 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 02:48:13,682 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 02:48:13,682 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 02:48:13,682 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 02:48:13,683 INFO L128 BoogieDeclarations]: Found specification of procedure test_fun [2018-01-21 02:48:13,683 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 02:48:13,683 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 02:48:13,683 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 02:48:13,889 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 02:48:13,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 02:48:13 BoogieIcfgContainer [2018-01-21 02:48:13,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 02:48:13,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 02:48:13,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 02:48:13,893 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 02:48:13,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 02:48:13" (1/3) ... [2018-01-21 02:48:13,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bc4737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 02:48:13, skipping insertion in model container [2018-01-21 02:48:13,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 02:48:13" (2/3) ... [2018-01-21 02:48:13,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bc4737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 02:48:13, skipping insertion in model container [2018-01-21 02:48:13,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 02:48:13" (3/3) ... [2018-01-21 02:48:13,897 INFO L105 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i [2018-01-21 02:48:13,904 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 02:48:13,911 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 02:48:13,958 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:48:13,958 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:48:13,958 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:48:13,958 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:48:13,959 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:48:13,959 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:48:13,959 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:48:13,959 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 02:48:13,959 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:48:13,982 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-01-21 02:48:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 02:48:13,988 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:13,988 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 02:48:13,989 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 02:48:13,993 INFO L82 PathProgramCache]: Analyzing trace with hash 98024, now seen corresponding path program 1 times [2018-01-21 02:48:13,995 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,038 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,039 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,039 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,039 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 02:48:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 02:48:14,092 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 02:48:14,098 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 02:48:14,105 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:48:14,106 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:48:14,106 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:48:14,106 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:48:14,106 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:48:14,106 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:48:14,106 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:48:14,106 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == test_funErr0EnsuresViolation======== [2018-01-21 02:48:14,106 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:48:14,108 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-01-21 02:48:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 02:48:14,108 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:14,108 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 02:48:14,109 INFO L371 AbstractCegarLoop]: === Iteration 1 === [test_funErr0EnsuresViolation]=== [2018-01-21 02:48:14,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1857426489, now seen corresponding path program 1 times [2018-01-21 02:48:14,109 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,110 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,110 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,110 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,110 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:48:14,141 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:48:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 02:48:14,180 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:48:14,181 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 02:48:14,181 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:48:14,183 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 02:48:14,197 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 02:48:14,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 02:48:14,201 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-01-21 02:48:14,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:48:14,229 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2018-01-21 02:48:14,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 02:48:14,232 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-21 02:48:14,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:48:14,241 INFO L225 Difference]: With dead ends: 67 [2018-01-21 02:48:14,241 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 02:48:14,245 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 02:48:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 02:48:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 02:48:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 02:48:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 02:48:14,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-01-21 02:48:14,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:48:14,344 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 02:48:14,344 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 02:48:14,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 02:48:14,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 02:48:14,347 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:48:14,348 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:48:14,348 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:48:14,348 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:48:14,348 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:48:14,348 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:48:14,348 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:48:14,349 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 02:48:14,349 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:48:14,351 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-01-21 02:48:14,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 02:48:14,351 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:14,352 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 02:48:14,352 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 02:48:14,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2122312364, now seen corresponding path program 1 times [2018-01-21 02:48:14,352 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,353 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,353 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,353 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,353 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:48:14,364 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:48:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 02:48:14,382 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:48:14,383 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 02:48:14,383 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:48:14,383 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 02:48:14,383 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 02:48:14,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 02:48:14,384 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-01-21 02:48:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:48:14,387 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2018-01-21 02:48:14,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 02:48:14,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-01-21 02:48:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:48:14,393 INFO L225 Difference]: With dead ends: 67 [2018-01-21 02:48:14,393 INFO L226 Difference]: Without dead ends: 36 [2018-01-21 02:48:14,393 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 02:48:14,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-21 02:48:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-21 02:48:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-21 02:48:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-01-21 02:48:14,404 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 19 [2018-01-21 02:48:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:48:14,405 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-01-21 02:48:14,405 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 02:48:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-01-21 02:48:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-21 02:48:14,406 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:14,406 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 02:48:14,406 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 02:48:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1074019570, now seen corresponding path program 1 times [2018-01-21 02:48:14,406 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,407 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,407 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:48:14,422 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:48:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 02:48:14,511 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:48:14,511 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 02:48:14,511 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:48:14,513 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 02:48:14,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 02:48:14,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 02:48:14,514 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2018-01-21 02:48:14,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:48:14,682 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2018-01-21 02:48:14,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 02:48:14,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-21 02:48:14,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:48:14,685 INFO L225 Difference]: With dead ends: 61 [2018-01-21 02:48:14,685 INFO L226 Difference]: Without dead ends: 53 [2018-01-21 02:48:14,686 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 02:48:14,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-21 02:48:14,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 38. [2018-01-21 02:48:14,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-01-21 02:48:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-01-21 02:48:14,693 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 20 [2018-01-21 02:48:14,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:48:14,693 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-01-21 02:48:14,693 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 02:48:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-01-21 02:48:14,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 02:48:14,694 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:14,695 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 02:48:14,695 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 02:48:14,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1862274463, now seen corresponding path program 1 times [2018-01-21 02:48:14,695 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,696 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,696 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,696 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,696 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 02:48:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 02:48:14,748 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 02:48:14,754 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 02:48:14,758 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 02:48:14,759 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 02:48:14,759 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 02:48:14,772 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 02:48:14,772 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 02:48:14,772 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 02:48:14,773 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 02:48:14,773 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 02:48:14,773 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 02:48:14,773 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 02:48:14,773 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 02:48:14,773 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 02:48:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-01-21 02:48:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-21 02:48:14,776 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:14,776 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 02:48:14,776 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 02:48:14,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1083823873, now seen corresponding path program 1 times [2018-01-21 02:48:14,777 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,778 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,778 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,778 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,778 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:48:14,789 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:48:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 02:48:14,802 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:48:14,802 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 02:48:14,802 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:48:14,803 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 02:48:14,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 02:48:14,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 02:48:14,803 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-01-21 02:48:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:48:14,808 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2018-01-21 02:48:14,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 02:48:14,808 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-01-21 02:48:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:48:14,810 INFO L225 Difference]: With dead ends: 67 [2018-01-21 02:48:14,810 INFO L226 Difference]: Without dead ends: 34 [2018-01-21 02:48:14,810 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 02:48:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-01-21 02:48:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-01-21 02:48:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-01-21 02:48:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-01-21 02:48:14,815 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 17 [2018-01-21 02:48:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:48:14,815 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-01-21 02:48:14,816 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 02:48:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-01-21 02:48:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-21 02:48:14,817 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:14,817 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 02:48:14,817 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-21 02:48:14,817 INFO L82 PathProgramCache]: Analyzing trace with hash 944133317, now seen corresponding path program 1 times [2018-01-21 02:48:14,817 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,818 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,818 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,819 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:48:14,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:48:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 02:48:14,885 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:48:14,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 02:48:14,886 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:48:14,886 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 02:48:14,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 02:48:14,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 02:48:14,886 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2018-01-21 02:48:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:48:14,967 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-01-21 02:48:14,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 02:48:14,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-21 02:48:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:48:14,969 INFO L225 Difference]: With dead ends: 57 [2018-01-21 02:48:14,969 INFO L226 Difference]: Without dead ends: 51 [2018-01-21 02:48:14,969 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 02:48:14,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-21 02:48:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 36. [2018-01-21 02:48:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-21 02:48:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-01-21 02:48:14,973 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 18 [2018-01-21 02:48:14,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:48:14,974 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-01-21 02:48:14,974 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 02:48:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-01-21 02:48:14,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-21 02:48:14,974 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 02:48:14,975 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 02:48:14,975 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation]=== [2018-01-21 02:48:14,975 INFO L82 PathProgramCache]: Analyzing trace with hash 641636852, now seen corresponding path program 1 times [2018-01-21 02:48:14,975 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 02:48:14,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,976 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 02:48:14,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 02:48:14,976 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 02:48:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 02:48:14,994 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 02:48:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-21 02:48:15,056 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 02:48:15,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 02:48:15,057 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 02:48:15,057 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 02:48:15,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 02:48:15,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 02:48:15,058 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2018-01-21 02:48:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 02:48:15,232 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-01-21 02:48:15,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 02:48:15,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-01-21 02:48:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 02:48:15,233 INFO L225 Difference]: With dead ends: 36 [2018-01-21 02:48:15,233 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 02:48:15,234 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 02:48:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 02:48:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 02:48:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 02:48:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 02:48:15,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-01-21 02:48:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 02:48:15,235 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 02:48:15,235 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 02:48:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 02:48:15,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 02:48:15,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 02:48:15 BoogieIcfgContainer [2018-01-21 02:48:15,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 02:48:15,239 INFO L168 Benchmark]: Toolchain (without parser) took 1866.11 ms. Allocated memory was 306.2 MB in the beginning and 467.1 MB in the end (delta: 161.0 MB). Free memory was 264.3 MB in the beginning and 374.1 MB in the end (delta: -109.7 MB). Peak memory consumption was 51.2 MB. Max. memory is 5.3 GB. [2018-01-21 02:48:15,241 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 306.2 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 02:48:15,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.96 ms. Allocated memory is still 306.2 MB. Free memory was 263.3 MB in the beginning and 253.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 02:48:15,241 INFO L168 Benchmark]: Boogie Preprocessor took 33.68 ms. Allocated memory is still 306.2 MB. Free memory was 253.3 MB in the beginning and 251.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 02:48:15,241 INFO L168 Benchmark]: RCFGBuilder took 268.21 ms. Allocated memory is still 306.2 MB. Free memory was 251.3 MB in the beginning and 235.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 5.3 GB. [2018-01-21 02:48:15,241 INFO L168 Benchmark]: TraceAbstraction took 1347.30 ms. Allocated memory was 306.2 MB in the beginning and 467.1 MB in the end (delta: 161.0 MB). Free memory was 235.4 MB in the beginning and 374.1 MB in the end (delta: -138.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-01-21 02:48:15,243 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 306.2 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 209.96 ms. Allocated memory is still 306.2 MB. Free memory was 263.3 MB in the beginning and 253.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.68 ms. Allocated memory is still 306.2 MB. Free memory was 253.3 MB in the beginning and 251.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 268.21 ms. Allocated memory is still 306.2 MB. Free memory was 251.3 MB in the beginning and 235.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1347.30 ms. Allocated memory was 306.2 MB in the beginning and 467.1 MB in the end (delta: 161.0 MB). Free memory was 235.4 MB in the beginning and 374.1 MB in the end (delta: -138.7 MB). Peak memory consumption was 22.3 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) - 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, 40 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=40occurred 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: test_funErr0EnsuresViolation CFG has 4 procedures, 40 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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=40occurred 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: [L559] int array_size = __VERIFIER_nondet_int(); [L560] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L561] array_size = 1 VAL [array_size=1] [L563] EXPR, FCALL __builtin_alloca (array_size * sizeof(int)) VAL [__builtin_alloca (array_size * sizeof(int))={6:0}, array_size=1] [L563] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); VAL [__builtin_alloca (array_size * sizeof(int))={6:0}, array_size=1, numbers={6:0}] [L564] CALL test_fun(numbers, array_size) VAL [\old(N)=1, a={6:0}] [L542] int i; [L543] int res; [L544] i = 0 VAL [\old(N)=1, a={6:0}, a={6:0}, i=0, N=1] [L544] COND TRUE i < N [L545] res = 1 VAL [\old(N)=1, a={6:0}, a={6:0}, i=0, N=1, res=1] [L546] EXPR, FCALL a[i] VAL [\old(N)=1, a={6:0}, a={6:0}, a[i]=0, i=0, N=1, res=1] [L546] COND TRUE a[i] == 0 [L547] res = 1 VAL [\old(N)=1, a={6:0}, a={6:0}, i=0, N=1, res=1] [L551] EXPR, FCALL a[i] VAL [\old(N)=1, a={6:0}, a={6:0}, a[i]=0, i=0, N=1, res=1] [L551] COND FALSE !(a[i] > 0) [L555] FCALL a[i] = res VAL [\old(N)=1, a={6:0}, a={6:0}, i=0, N=1, res=1] [L544] i++ VAL [\old(N)=1, a={6:0}, a={6:0}, i=1, N=1, res=1] [L544] COND FALSE, RET !(i < N) VAL [\old(N)=1, a={6:0}, a={6:0}, i=1, N=1, res=1] [L564] test_fun(numbers, array_size) - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 40 locations, 4 error locations. UNSAFE Result, 0.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 23 SDslu, 76 SDs, 0 SdLazy, 46 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 1103 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 - PositiveResult [Line: 558]: 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, 40 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 102 SDtfs, 47 SDslu, 73 SDs, 0 SdLazy, 86 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 2297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_02-48-15-251.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_02-48-15-251.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_02-48-15-251.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_02-48-15-251.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_02-48-15-251.csv Received shutdown request...