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/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:00:16,544 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:00:16,545 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:00:16,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:00:16,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:00:16,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:00:16,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:00:16,565 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:00:16,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:00:16,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:00:16,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 00:00:16,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 00:00:16,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 00:00:16,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 00:00:16,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 00:00:16,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 00:00:16,578 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 00:00:16,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 00:00:16,581 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 00:00:16,583 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 00:00:16,585 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 00:00:16,592 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-21 00:00:16,601 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:00:16,601 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:00:16,602 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:00:16,602 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:00:16,602 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:00:16,602 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:00:16,603 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:00:16,603 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:00:16,603 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:00:16,603 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:00:16,603 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:00:16,603 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:00:16,604 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:00:16,605 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:00:16,605 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:00:16,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:00:16,605 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:00:16,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:00:16,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:00:16,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:00:16,606 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:00:16,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:00:16,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:00:16,606 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:00:16,606 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:00:16,607 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:00:16,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:00:16,607 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:00:16,607 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:00:16,608 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:00:16,608 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:00:16,642 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:00:16,653 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:00:16,656 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:00:16,657 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:00:16,657 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:00:16,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-01-21 00:00:16,839 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:00:16,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:00:16,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:00:16,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:00:16,864 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:00:16,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:00:16" (1/1) ... [2018-01-21 00:00:16,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24adc032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:16, skipping insertion in model container [2018-01-21 00:00:16,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:00:16" (1/1) ... [2018-01-21 00:00:16,890 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:00:16,933 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:00:17,053 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:00:17,079 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:00:17,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17 WrapperNode [2018-01-21 00:00:17,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:00:17,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:00:17,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:00:17,090 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:00:17,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... [2018-01-21 00:00:17,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... [2018-01-21 00:00:17,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... [2018-01-21 00:00:17,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... [2018-01-21 00:00:17,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... [2018-01-21 00:00:17,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... [2018-01-21 00:00:17,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... [2018-01-21 00:00:17,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:00:17,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:00:17,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:00:17,139 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:00:17,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:00:17,193 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:00:17,193 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:00:17,193 INFO L136 BoogieDeclarations]: Found implementation of procedure fail [2018-01-21 00:00:17,193 INFO L136 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-01-21 00:00:17,193 INFO L136 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-01-21 00:00:17,194 INFO L136 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-01-21 00:00:17,194 INFO L136 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-01-21 00:00:17,194 INFO L136 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-01-21 00:00:17,194 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:00:17,194 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:00:17,194 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:00:17,194 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:00:17,195 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:00:17,195 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:00:17,195 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:00:17,195 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:00:17,195 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 00:00:17,195 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 00:00:17,196 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-21 00:00:17,196 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 00:00:17,196 INFO L128 BoogieDeclarations]: Found specification of procedure fail [2018-01-21 00:00:17,196 INFO L128 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-01-21 00:00:17,196 INFO L128 BoogieDeclarations]: Found specification of procedure merge_pair [2018-01-21 00:00:17,196 INFO L128 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-01-21 00:00:17,197 INFO L128 BoogieDeclarations]: Found specification of procedure inspect_before [2018-01-21 00:00:17,197 INFO L128 BoogieDeclarations]: Found specification of procedure inspect_after [2018-01-21 00:00:17,197 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:00:17,197 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:00:17,197 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:00:17,941 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:00:17,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:00:17 BoogieIcfgContainer [2018-01-21 00:00:17,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:00:17,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:00:17,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:00:17,945 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:00:17,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:00:16" (1/3) ... [2018-01-21 00:00:17,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b34a369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:00:17, skipping insertion in model container [2018-01-21 00:00:17,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:00:17" (2/3) ... [2018-01-21 00:00:17,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b34a369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:00:17, skipping insertion in model container [2018-01-21 00:00:17,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:00:17" (3/3) ... [2018-01-21 00:00:17,949 INFO L105 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-01-21 00:00:17,956 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:00:17,964 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-21 00:00:18,009 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:00:18,009 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:00:18,010 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:00:18,010 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:00:18,010 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:00:18,010 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:00:18,010 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:00:18,010 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == failErr0EnsuresViolation======== [2018-01-21 00:00:18,011 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:00:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:00:18,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 00:00:18,040 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:18,041 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:00:18,041 INFO L371 AbstractCegarLoop]: === Iteration 1 === [failErr0EnsuresViolation]=== [2018-01-21 00:00:18,045 INFO L82 PathProgramCache]: Analyzing trace with hash -101851905, now seen corresponding path program 1 times [2018-01-21 00:00:18,048 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:18,090 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,091 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:18,091 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,091 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:00:18,152 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:00:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:00:18,185 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:00:18,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 00:00:18,185 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:00:18,188 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 00:00:18,279 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 00:00:18,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:00:18,281 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 2 states. [2018-01-21 00:00:18,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:00:18,332 INFO L93 Difference]: Finished difference Result 417 states and 571 transitions. [2018-01-21 00:00:18,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 00:00:18,334 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-01-21 00:00:18,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:00:18,340 INFO L225 Difference]: With dead ends: 417 [2018-01-21 00:00:18,341 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:00:18,348 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:00:18,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:00:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:00:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:00:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:00:18,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-21 00:00:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:00:18,370 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:00:18,370 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 00:00:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:00:18,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:00:18,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-21 00:00:18,509 INFO L404 ceAbstractionStarter]: At program point failENTRY(lines 553 555) the Hoare annotation is: true [2018-01-21 00:00:18,509 INFO L401 ceAbstractionStarter]: For program point failFINAL(lines 553 555) no Hoare annotation was computed. [2018-01-21 00:00:18,509 INFO L401 ceAbstractionStarter]: For program point failErr0EnsuresViolation(lines 553 555) no Hoare annotation was computed. [2018-01-21 00:00:18,509 INFO L401 ceAbstractionStarter]: For program point failEXIT(lines 553 555) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 655) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 655) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 655) the Hoare annotation is: true [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 655) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L404 ceAbstractionStarter]: At program point L581(line 581) the Hoare annotation is: true [2018-01-21 00:00:18,510 INFO L404 ceAbstractionStarter]: At program point L581'(line 581) the Hoare annotation is: true [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point L573'(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point merge_pairFINAL(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point L577'''''(line 577) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point L578''''''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point L573'''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,510 INFO L401 ceAbstractionStarter]: For program point L578''''''''''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L404 ceAbstractionStarter]: At program point merge_pairENTRY(lines 573 583) the Hoare annotation is: true [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573''''''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573''''''''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L578'(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573''''''''''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L577''(line 577) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,511 INFO L401 ceAbstractionStarter]: For program point L573'''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L404 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: true [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L578(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L577(lines 577 582) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L578'''''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L578'''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L577''''(line 577) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L577''''''''(lines 577 582) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L573'''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,512 INFO L401 ceAbstractionStarter]: For program point L573'''''''''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point merge_pairErr0EnsuresViolation(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L573'''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L578''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L573'''''''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L573''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L578''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L578'''''''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L578'''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L578''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L573''''''''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,513 INFO L401 ceAbstractionStarter]: For program point L573'''''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point merge_pairEXIT(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L578''''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L578'''''''''''''(line 578) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L577'(line 577) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L573''''(lines 573 583) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L577''''''(line 577) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L570(line 570) no Hoare annotation was computed. [2018-01-21 00:00:18,514 INFO L401 ceAbstractionStarter]: For program point L570'(line 570) no Hoare annotation was computed. [2018-01-21 00:00:18,515 INFO L401 ceAbstractionStarter]: For program point merge_single_nodeFINAL(lines 564 572) no Hoare annotation was computed. [2018-01-21 00:00:18,515 INFO L401 ceAbstractionStarter]: For program point merge_single_nodeErr0EnsuresViolation(lines 564 572) no Hoare annotation was computed. [2018-01-21 00:00:18,515 INFO L401 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-01-21 00:00:18,515 INFO L401 ceAbstractionStarter]: For program point L567(line 567) no Hoare annotation was computed. [2018-01-21 00:00:18,515 INFO L401 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-01-21 00:00:18,515 INFO L401 ceAbstractionStarter]: For program point merge_single_nodeEXIT(lines 564 572) no Hoare annotation was computed. [2018-01-21 00:00:18,515 INFO L404 ceAbstractionStarter]: At program point merge_single_nodeENTRY(lines 564 572) the Hoare annotation is: true [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L567'(line 567) no Hoare annotation was computed. [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L568'(line 568) no Hoare annotation was computed. [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L569'(line 569) no Hoare annotation was computed. [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L568''(line 568) no Hoare annotation was computed. [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L595'(line 595) no Hoare annotation was computed. [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L594'''(line 594) no Hoare annotation was computed. [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L597'(line 597) no Hoare annotation was computed. [2018-01-21 00:00:18,516 INFO L401 ceAbstractionStarter]: For program point L589(lines 589 593) no Hoare annotation was computed. [2018-01-21 00:00:18,517 INFO L401 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-01-21 00:00:18,517 INFO L401 ceAbstractionStarter]: For program point seq_sort_coreErr0EnsuresViolation(lines 584 601) no Hoare annotation was computed. [2018-01-21 00:00:18,517 INFO L401 ceAbstractionStarter]: For program point L587(lines 587 599) no Hoare annotation was computed. [2018-01-21 00:00:18,517 INFO L404 ceAbstractionStarter]: At program point L594''(line 594) the Hoare annotation is: true [2018-01-21 00:00:18,517 INFO L401 ceAbstractionStarter]: For program point seq_sort_coreEXIT(lines 584 601) no Hoare annotation was computed. [2018-01-21 00:00:18,517 INFO L401 ceAbstractionStarter]: For program point seq_sort_coreFINAL(lines 584 601) no Hoare annotation was computed. [2018-01-21 00:00:18,517 INFO L404 ceAbstractionStarter]: At program point L598'(line 598) the Hoare annotation is: true [2018-01-21 00:00:18,517 INFO L401 ceAbstractionStarter]: For program point L588'(line 588) no Hoare annotation was computed. [2018-01-21 00:00:18,518 INFO L401 ceAbstractionStarter]: For program point L590'(line 590) no Hoare annotation was computed. [2018-01-21 00:00:18,518 INFO L401 ceAbstractionStarter]: For program point L590(line 590) no Hoare annotation was computed. [2018-01-21 00:00:18,518 INFO L401 ceAbstractionStarter]: For program point L594'(line 594) no Hoare annotation was computed. [2018-01-21 00:00:18,518 INFO L401 ceAbstractionStarter]: For program point L597(line 597) no Hoare annotation was computed. [2018-01-21 00:00:18,518 INFO L401 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-01-21 00:00:18,518 INFO L404 ceAbstractionStarter]: At program point seq_sort_coreENTRY(lines 584 601) the Hoare annotation is: true [2018-01-21 00:00:18,518 INFO L401 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L598(line 598) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L587''(lines 587 599) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L609'''''''(line 609) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L404 ceAbstractionStarter]: At program point inspect_beforeENTRY(lines 602 615) the Hoare annotation is: true [2018-01-21 00:00:18,519 INFO L404 ceAbstractionStarter]: At program point L611'(line 611) the Hoare annotation is: true [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L607'(line 607) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L609'''''(line 609) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L613''''(line 613) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L612(line 612) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-01-21 00:00:18,519 INFO L401 ceAbstractionStarter]: For program point L611'''''(line 611) no Hoare annotation was computed. [2018-01-21 00:00:18,520 INFO L404 ceAbstractionStarter]: At program point L613''(line 613) the Hoare annotation is: true [2018-01-21 00:00:18,520 INFO L404 ceAbstractionStarter]: At program point L606'''''(line 606) the Hoare annotation is: true [2018-01-21 00:00:18,520 INFO L404 ceAbstractionStarter]: At program point L607''(line 607) the Hoare annotation is: true [2018-01-21 00:00:18,520 INFO L401 ceAbstractionStarter]: For program point L614(line 614) no Hoare annotation was computed. [2018-01-21 00:00:18,520 INFO L401 ceAbstractionStarter]: For program point L613(line 613) no Hoare annotation was computed. [2018-01-21 00:00:18,520 INFO L401 ceAbstractionStarter]: For program point L612'(line 612) no Hoare annotation was computed. [2018-01-21 00:00:18,520 INFO L401 ceAbstractionStarter]: For program point L608'(line 608) no Hoare annotation was computed. [2018-01-21 00:00:18,520 INFO L404 ceAbstractionStarter]: At program point L609'''(line 609) the Hoare annotation is: true [2018-01-21 00:00:18,520 INFO L401 ceAbstractionStarter]: For program point L605'(line 605) no Hoare annotation was computed. [2018-01-21 00:00:18,520 INFO L404 ceAbstractionStarter]: At program point L614'''(line 614) the Hoare annotation is: true [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L613''''''(line 613) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L607''''(line 607) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L607''''''(line 607) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L605''''(line 605) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L606'''(line 606) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L614''(line 614) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L612''''''(line 612) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point L605'''''(lines 605 610) no Hoare annotation was computed. [2018-01-21 00:00:18,521 INFO L404 ceAbstractionStarter]: At program point L606'(line 606) the Hoare annotation is: true [2018-01-21 00:00:18,521 INFO L401 ceAbstractionStarter]: For program point inspect_beforeErr0EnsuresViolation(lines 602 615) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L608''''''(line 608) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L612''''(line 612) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L614''''''''(line 614) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L604'''(line 604) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L609''(line 609) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L614'''''(line 614) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L404 ceAbstractionStarter]: At program point L604'(line 604) the Hoare annotation is: true [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L611'''(line 611) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L605'''(lines 605 610) no Hoare annotation was computed. [2018-01-21 00:00:18,522 INFO L401 ceAbstractionStarter]: For program point L608''''(line 608) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L614'''''''(line 614) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L605(line 605) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L604(line 604) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L609(line 609) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L608(line 608) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L607(line 607) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L606(line 606) no Hoare annotation was computed. [2018-01-21 00:00:18,523 INFO L401 ceAbstractionStarter]: For program point L613'(line 613) no Hoare annotation was computed. [2018-01-21 00:00:18,524 INFO L404 ceAbstractionStarter]: At program point L604'''''(line 604) the Hoare annotation is: true [2018-01-21 00:00:18,524 INFO L401 ceAbstractionStarter]: For program point L609'(line 609) no Hoare annotation was computed. [2018-01-21 00:00:18,524 INFO L401 ceAbstractionStarter]: For program point inspect_beforeEXIT(lines 602 615) no Hoare annotation was computed. [2018-01-21 00:00:18,524 INFO L404 ceAbstractionStarter]: At program point L612''(line 612) the Hoare annotation is: true [2018-01-21 00:00:18,524 INFO L404 ceAbstractionStarter]: At program point L608''(line 608) the Hoare annotation is: true [2018-01-21 00:00:18,524 INFO L401 ceAbstractionStarter]: For program point L614'(line 614) no Hoare annotation was computed. [2018-01-21 00:00:18,524 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 655) the Hoare annotation is: true [2018-01-21 00:00:18,524 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 655) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 655) the Hoare annotation is: true [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 655) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 655) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L650'(line 650) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L649'''(lines 649 653) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L629(line 629) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L628(lines 628 640) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L628''''(lines 628 640) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L651(line 651) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L630''(lines 630 631) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L650(line 650) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 625 655) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point L651'(line 651) no Hoare annotation was computed. [2018-01-21 00:00:18,525 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 625 655) no Hoare annotation was computed. [2018-01-21 00:00:18,526 INFO L404 ceAbstractionStarter]: At program point mainENTRY(lines 625 655) the Hoare annotation is: true [2018-01-21 00:00:18,526 INFO L401 ceAbstractionStarter]: For program point L644'(line 644) no Hoare annotation was computed. [2018-01-21 00:00:18,526 INFO L404 ceAbstractionStarter]: At program point L644''''(lines 644 645) the Hoare annotation is: true [2018-01-21 00:00:18,526 INFO L401 ceAbstractionStarter]: For program point L628'(lines 628 640) no Hoare annotation was computed. [2018-01-21 00:00:18,526 INFO L404 ceAbstractionStarter]: At program point L645(line 645) the Hoare annotation is: true [2018-01-21 00:00:18,526 INFO L401 ceAbstractionStarter]: For program point L644(lines 644 645) no Hoare annotation was computed. [2018-01-21 00:00:18,526 INFO L404 ceAbstractionStarter]: At program point L643(line 643) the Hoare annotation is: true [2018-01-21 00:00:18,526 INFO L401 ceAbstractionStarter]: For program point L649(lines 649 653) no Hoare annotation was computed. [2018-01-21 00:00:18,526 INFO L401 ceAbstractionStarter]: For program point L648(line 648) no Hoare annotation was computed. [2018-01-21 00:00:18,526 INFO L404 ceAbstractionStarter]: At program point L628'''(lines 628 640) the Hoare annotation is: true [2018-01-21 00:00:18,526 INFO L401 ceAbstractionStarter]: For program point L647(line 647) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L404 ceAbstractionStarter]: At program point L649''(lines 649 653) the Hoare annotation is: true [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L646(line 646) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L645'(line 645) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L633'(line 633) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L629'(line 629) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 625 655) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L630(lines 630 631) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L634(line 634) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L633(line 633) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L404 ceAbstractionStarter]: At program point L644'''(lines 644 645) the Hoare annotation is: true [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L632(line 632) no Hoare annotation was computed. [2018-01-21 00:00:18,527 INFO L401 ceAbstractionStarter]: For program point L638(line 638) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L635''(lines 635 636) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L637(line 637) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L635(lines 635 636) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L634'(line 634) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L623(line 623) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L623'''''''(line 623) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L622(line 622) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L622'''(line 622) no Hoare annotation was computed. [2018-01-21 00:00:18,528 INFO L401 ceAbstractionStarter]: For program point L620(line 620) no Hoare annotation was computed. [2018-01-21 00:00:18,529 INFO L404 ceAbstractionStarter]: At program point L623''(line 623) the Hoare annotation is: true [2018-01-21 00:00:18,529 INFO L404 ceAbstractionStarter]: At program point L622'''''''(line 622) the Hoare annotation is: true [2018-01-21 00:00:18,529 INFO L401 ceAbstractionStarter]: For program point L620'''''''(line 620) no Hoare annotation was computed. [2018-01-21 00:00:18,529 INFO L401 ceAbstractionStarter]: For program point L623'(line 623) no Hoare annotation was computed. [2018-01-21 00:00:18,529 INFO L401 ceAbstractionStarter]: For program point L620''''(line 620) no Hoare annotation was computed. [2018-01-21 00:00:18,529 INFO L401 ceAbstractionStarter]: For program point L619'(line 619) no Hoare annotation was computed. [2018-01-21 00:00:18,529 INFO L401 ceAbstractionStarter]: For program point L622'''''(line 622) no Hoare annotation was computed. [2018-01-21 00:00:18,529 INFO L401 ceAbstractionStarter]: For program point L619(line 619) no Hoare annotation was computed. [2018-01-21 00:00:18,529 INFO L401 ceAbstractionStarter]: For program point L618(line 618) no Hoare annotation was computed. [2018-01-21 00:00:18,530 INFO L404 ceAbstractionStarter]: At program point L619''(line 619) the Hoare annotation is: true [2018-01-21 00:00:18,530 INFO L401 ceAbstractionStarter]: For program point L620'(line 620) no Hoare annotation was computed. [2018-01-21 00:00:18,530 INFO L401 ceAbstractionStarter]: For program point L622''''''(line 622) no Hoare annotation was computed. [2018-01-21 00:00:18,530 INFO L404 ceAbstractionStarter]: At program point L620''(line 620) the Hoare annotation is: true [2018-01-21 00:00:18,530 INFO L401 ceAbstractionStarter]: For program point L622''(line 622) no Hoare annotation was computed. [2018-01-21 00:00:18,530 INFO L404 ceAbstractionStarter]: At program point inspect_afterENTRY(lines 616 624) the Hoare annotation is: true [2018-01-21 00:00:18,530 INFO L401 ceAbstractionStarter]: For program point L623''''''(line 623) no Hoare annotation was computed. [2018-01-21 00:00:18,530 INFO L401 ceAbstractionStarter]: For program point inspect_afterErr0EnsuresViolation(lines 616 624) no Hoare annotation was computed. [2018-01-21 00:00:18,531 INFO L401 ceAbstractionStarter]: For program point L618'''(line 618) no Hoare annotation was computed. [2018-01-21 00:00:18,531 INFO L404 ceAbstractionStarter]: At program point L618'''''(line 618) the Hoare annotation is: true [2018-01-21 00:00:18,531 INFO L401 ceAbstractionStarter]: For program point L619''''''(line 619) no Hoare annotation was computed. [2018-01-21 00:00:18,531 INFO L401 ceAbstractionStarter]: For program point L619''''(line 619) no Hoare annotation was computed. [2018-01-21 00:00:18,531 INFO L401 ceAbstractionStarter]: For program point L620''''''(line 620) no Hoare annotation was computed. [2018-01-21 00:00:18,531 INFO L401 ceAbstractionStarter]: For program point L622'(line 622) no Hoare annotation was computed. [2018-01-21 00:00:18,531 INFO L401 ceAbstractionStarter]: For program point L623''''(line 623) no Hoare annotation was computed. [2018-01-21 00:00:18,531 INFO L401 ceAbstractionStarter]: For program point inspect_afterEXIT(lines 616 624) no Hoare annotation was computed. [2018-01-21 00:00:18,532 INFO L404 ceAbstractionStarter]: At program point L618'(line 618) the Hoare annotation is: true [2018-01-21 00:00:18,538 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:00:18,538 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:00:18,538 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:00:18,538 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:00:18,538 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:00:18,538 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:00:18,538 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:00:18,539 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:00:18,539 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:00:18,543 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:00:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:00:18,544 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:18,544 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:00:18,544 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:00:18,544 INFO L82 PathProgramCache]: Analyzing trace with hash 563166, now seen corresponding path program 1 times [2018-01-21 00:00:18,545 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:18,546 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,546 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:18,546 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,546 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:00:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:00:18,570 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:00:18,574 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:00:18,579 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:00:18,580 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:00:18,580 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:00:18,580 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:00:18,580 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:00:18,580 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:00:18,580 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:00:18,580 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == merge_pairErr0EnsuresViolation======== [2018-01-21 00:00:18,580 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:00:18,584 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:00:18,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-01-21 00:00:18,588 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:18,588 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:00:18,588 INFO L371 AbstractCegarLoop]: === Iteration 1 === [merge_pairErr0EnsuresViolation]=== [2018-01-21 00:00:18,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2032860850, now seen corresponding path program 1 times [2018-01-21 00:00:18,589 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:18,589 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,590 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:18,590 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,590 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:00:18,603 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:00:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:00:18,620 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:00:18,620 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 00:00:18,620 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:00:18,620 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 00:00:18,620 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 00:00:18,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:00:18,621 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 2 states. [2018-01-21 00:00:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:00:18,638 INFO L93 Difference]: Finished difference Result 417 states and 571 transitions. [2018-01-21 00:00:18,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 00:00:18,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 53 [2018-01-21 00:00:18,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:00:18,644 INFO L225 Difference]: With dead ends: 417 [2018-01-21 00:00:18,644 INFO L226 Difference]: Without dead ends: 150 [2018-01-21 00:00:18,645 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:00:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-01-21 00:00:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-01-21 00:00:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-01-21 00:00:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2018-01-21 00:00:18,665 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 53 [2018-01-21 00:00:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:00:18,665 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2018-01-21 00:00:18,665 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 00:00:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2018-01-21 00:00:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-01-21 00:00:18,667 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:18,667 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:00:18,667 INFO L371 AbstractCegarLoop]: === Iteration 2 === [merge_pairErr0EnsuresViolation]=== [2018-01-21 00:00:18,667 INFO L82 PathProgramCache]: Analyzing trace with hash -493560614, now seen corresponding path program 1 times [2018-01-21 00:00:18,667 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:18,668 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,668 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:18,668 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,668 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:00:18,687 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:00:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:00:18,759 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:00:18,759 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 00:00:18,759 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:00:18,761 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 00:00:18,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 00:00:18,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 00:00:18,762 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand 3 states. [2018-01-21 00:00:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:00:18,803 INFO L93 Difference]: Finished difference Result 294 states and 314 transitions. [2018-01-21 00:00:18,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 00:00:18,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2018-01-21 00:00:18,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:00:18,806 INFO L225 Difference]: With dead ends: 294 [2018-01-21 00:00:18,806 INFO L226 Difference]: Without dead ends: 166 [2018-01-21 00:00:18,807 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 00:00:18,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-01-21 00:00:18,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 153. [2018-01-21 00:00:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-01-21 00:00:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 163 transitions. [2018-01-21 00:00:18,821 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 163 transitions. Word has length 75 [2018-01-21 00:00:18,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:00:18,821 INFO L432 AbstractCegarLoop]: Abstraction has 153 states and 163 transitions. [2018-01-21 00:00:18,821 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 00:00:18,821 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 163 transitions. [2018-01-21 00:00:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-01-21 00:00:18,825 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:18,825 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:00:18,825 INFO L371 AbstractCegarLoop]: === Iteration 3 === [merge_pairErr0EnsuresViolation]=== [2018-01-21 00:00:18,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1476607212, now seen corresponding path program 1 times [2018-01-21 00:00:18,826 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:18,827 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,827 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:18,827 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:18,827 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:00:18,888 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:00:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-01-21 00:00:18,956 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:00:18,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 00:00:18,956 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:00:18,957 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 00:00:18,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 00:00:18,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 00:00:18,958 INFO L87 Difference]: Start difference. First operand 153 states and 163 transitions. Second operand 3 states. [2018-01-21 00:00:18,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:00:18,982 INFO L93 Difference]: Finished difference Result 237 states and 258 transitions. [2018-01-21 00:00:18,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 00:00:18,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2018-01-21 00:00:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:00:18,985 INFO L225 Difference]: With dead ends: 237 [2018-01-21 00:00:18,985 INFO L226 Difference]: Without dead ends: 154 [2018-01-21 00:00:18,986 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 00:00:18,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-01-21 00:00:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-01-21 00:00:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-01-21 00:00:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2018-01-21 00:00:18,998 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 91 [2018-01-21 00:00:18,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:00:18,999 INFO L432 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2018-01-21 00:00:18,999 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 00:00:18,999 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2018-01-21 00:00:19,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-01-21 00:00:19,001 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:19,001 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:00:19,001 INFO L371 AbstractCegarLoop]: === Iteration 4 === [merge_pairErr0EnsuresViolation]=== [2018-01-21 00:00:19,002 INFO L82 PathProgramCache]: Analyzing trace with hash 754057391, now seen corresponding path program 1 times [2018-01-21 00:00:19,002 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:19,003 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:19,003 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:19,003 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:19,003 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:00:19,055 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:00:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:00:19,583 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:00:19,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-01-21 00:00:19,583 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:00:19,584 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-21 00:00:19,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-21 00:00:19,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-01-21 00:00:19,584 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 17 states. [2018-01-21 00:00:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:00:20,978 INFO L93 Difference]: Finished difference Result 370 states and 407 transitions. [2018-01-21 00:00:20,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-01-21 00:00:20,978 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 93 [2018-01-21 00:00:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:00:20,982 INFO L225 Difference]: With dead ends: 370 [2018-01-21 00:00:20,982 INFO L226 Difference]: Without dead ends: 286 [2018-01-21 00:00:20,983 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2018-01-21 00:00:20,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-01-21 00:00:21,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 221. [2018-01-21 00:00:21,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-01-21 00:00:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 242 transitions. [2018-01-21 00:00:21,006 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 242 transitions. Word has length 93 [2018-01-21 00:00:21,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:00:21,007 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 242 transitions. [2018-01-21 00:00:21,007 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-21 00:00:21,007 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 242 transitions. [2018-01-21 00:00:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-01-21 00:00:21,008 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:21,008 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:00:21,009 INFO L371 AbstractCegarLoop]: === Iteration 5 === [merge_pairErr0EnsuresViolation]=== [2018-01-21 00:00:21,009 INFO L82 PathProgramCache]: Analyzing trace with hash -514708738, now seen corresponding path program 1 times [2018-01-21 00:00:21,009 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:21,009 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:21,010 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:21,010 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:21,010 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:00:21,036 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:00:21,138 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:00:21,138 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:00:21,138 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-21 00:00:21,139 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:00:21,139 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-21 00:00:21,140 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-21 00:00:21,140 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-21 00:00:21,140 INFO L87 Difference]: Start difference. First operand 221 states and 242 transitions. Second operand 7 states. [2018-01-21 00:00:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:00:21,454 INFO L93 Difference]: Finished difference Result 343 states and 375 transitions. [2018-01-21 00:00:21,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-21 00:00:21,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2018-01-21 00:00:21,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:00:21,457 INFO L225 Difference]: With dead ends: 343 [2018-01-21 00:00:21,458 INFO L226 Difference]: Without dead ends: 256 [2018-01-21 00:00:21,459 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-01-21 00:00:21,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-01-21 00:00:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 231. [2018-01-21 00:00:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-01-21 00:00:21,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 253 transitions. [2018-01-21 00:00:21,476 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 253 transitions. Word has length 104 [2018-01-21 00:00:21,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:00:21,477 INFO L432 AbstractCegarLoop]: Abstraction has 231 states and 253 transitions. [2018-01-21 00:00:21,477 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-21 00:00:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 253 transitions. [2018-01-21 00:00:21,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-01-21 00:00:21,478 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:00:21,478 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:00:21,478 INFO L371 AbstractCegarLoop]: === Iteration 6 === [merge_pairErr0EnsuresViolation]=== [2018-01-21 00:00:21,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1958389758, now seen corresponding path program 1 times [2018-01-21 00:00:21,479 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:00:21,480 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:21,480 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:00:21,480 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:00:21,480 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:00:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:00:21,532 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:00:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:00:22,551 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:00:22,551 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:00:22,552 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-01-21 00:00:22,554 INFO L201 CegarAbsIntRunner]: [13], [17], [23], [24], [25], [28], [29], [30], [32], [33], [34], [45], [46], [48], [52], [58], [62], [70], [71], [74], [161], [167], [171], [179], [180], [186], [190], [198], [199], [205], [209], [217], [218], [219], [225], [229], [235], [237], [241], [243], [246], [248], [249], [250], [255], [257], [258], [259], [260], [261], [262], [267], [269], [270], [271], [278], [283], [285], [290], [292], [421], [422], [424], [425], [426], [427], [428], [429], [430], [431], [432], [433], [434], [435], [436], [437], [441], [443], [444], [449], [450], [451], [455], [491], [492], [493], [494], [495], [496], [498], [503], [523], [524], [525], [526], [541], [542], [543] [2018-01-21 00:00:22,615 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:00:22,615 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 00:01:13,520 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 00:01:13,521 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 00:01:13,521 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:01:13,522 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:01:13,522 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:01:13,527 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:01:13,528 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:01:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:01:13,602 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:01:13,624 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 00:01:13,624 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:01:13,626 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:13,626 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:13,626 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:13,627 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:13,627 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:13,627 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:13,627 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:13,627 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == merge_single_nodeErr0EnsuresViolation======== [2018-01-21 00:01:13,627 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:01:13,629 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:01:13,630 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:13,630 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:13,630 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:13,630 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:13,631 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:13,631 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:13,631 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:13,631 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == seq_sort_coreErr0EnsuresViolation======== [2018-01-21 00:01:13,631 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:01:13,632 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:01:13,633 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:13,633 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:13,633 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:13,633 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:13,633 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:13,633 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:13,633 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:13,633 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == inspect_beforeErr0EnsuresViolation======== [2018-01-21 00:01:13,634 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:01:13,635 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:01:13,636 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:13,636 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:13,636 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:13,636 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:13,636 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:13,636 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:13,636 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:13,636 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:01:13,636 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:01:13,637 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:01:13,638 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:13,638 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:13,638 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:13,638 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:13,638 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:13,638 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:13,638 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:13,638 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 00:01:13,639 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:13,640 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:01:13,640 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:01:13,641 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:01:13,641 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:01:13,641 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:01:13,642 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:01:13,642 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:01:13,642 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:01:13,642 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:01:13,642 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == inspect_afterErr0EnsuresViolation======== [2018-01-21 00:01:13,642 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:01:13,643 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-01-21 00:01:13,643 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:01:13,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:01:13 BoogieIcfgContainer [2018-01-21 00:01:13,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 00:01:13,645 INFO L168 Benchmark]: Toolchain (without parser) took 56805.78 ms. Allocated memory was 303.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 260.9 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 730.2 MB. Max. memory is 5.3 GB. [2018-01-21 00:01:13,647 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 303.6 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:01:13,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.00 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 248.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-21 00:01:13,647 INFO L168 Benchmark]: Boogie Preprocessor took 49.29 ms. Allocated memory is still 303.6 MB. Free memory was 248.8 MB in the beginning and 246.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:01:13,648 INFO L168 Benchmark]: RCFGBuilder took 803.16 ms. Allocated memory is still 303.6 MB. Free memory was 246.8 MB in the beginning and 195.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 5.3 GB. [2018-01-21 00:01:13,648 INFO L168 Benchmark]: TraceAbstraction took 55701.29 ms. Allocated memory was 303.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 195.8 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 665.2 MB. Max. memory is 5.3 GB. [2018-01-21 00:01:13,649 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 303.6 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 233.00 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 248.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 49.29 ms. Allocated memory is still 303.6 MB. Free memory was 248.8 MB in the beginning and 246.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 803.16 ms. Allocated memory is still 303.6 MB. Free memory was 246.8 MB in the beginning and 195.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 55701.29 ms. Allocated memory was 303.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 195.8 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 665.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 553]: 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: failErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 234 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=215occurred 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, 38 LocationsWithAnnotation, 92 PreInvPairs, 117 NumberOfFragments, 38 HoareAnnotationTreeSize, 92 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 38 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 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 9 procedures, 215 locations, 9 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=215occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 573]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 573). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 27 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: merge_pairErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. TIMEOUT Result, 55.0s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 840 SDtfs, 405 SDslu, 2456 SDs, 0 SdLazy, 933 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 50.9s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 103 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 416 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 411 ConstructedInterpolants, 0 QuantifiedInterpolants, 82505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 564]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 564). Cancelled while IsEmpty was searching accepting run (input had 215 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: merge_single_nodeErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 584]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 584). Cancelled while IsEmpty was searching accepting run (input had 215 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: seq_sort_coreErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 602]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 602). Cancelled while IsEmpty was searching accepting run (input had 215 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: inspect_beforeErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while IsEmpty was searching accepting run (input had 215 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 625]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 625). Cancelled while IsEmpty was searching accepting run (input had 215 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 616]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 616). Cancelled while IsEmpty was searching accepting run (input had 215 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: inspect_afterErr0EnsuresViolation CFG has 9 procedures, 215 locations, 9 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-6-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-7-2018-01-21_00-01-13-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-8-2018-01-21_00-01-13-659.csv Completed graceful shutdown