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/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test6_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:02:45,773 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:02:45,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:02:45,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:02:45,814 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:02:45,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:02:45,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:02:45,818 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:02:45,820 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:02:45,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:02:45,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:02:45,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:02:45,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:02:45,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:02:45,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:02:45,827 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:02:45,829 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:02:45,832 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:02:45,833 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:02:45,834 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:02:45,836 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:02:45,841 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:02:45,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:02:45,842 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-24 16:02:45,851 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:02:45,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:02:45,852 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:02:45,852 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:02:45,852 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:02:45,852 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:02:45,852 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:02:45,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:02:45,853 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:02:45,853 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:02:45,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:02:45,853 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:02:45,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:02:45,854 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:02:45,854 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:02:45,854 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:02:45,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:02:45,854 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:02:45,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:02:45,854 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:02:45,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:02:45,855 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:02:45,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:02:45,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:02:45,855 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:02:45,856 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 16:02:45,857 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:02:45,857 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:02:45,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:02:45,899 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:02:45,903 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:02:45,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:02:45,905 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:02:45,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test6_true-valid-memsafety_true-termination.i [2018-01-24 16:02:46,086 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:02:46,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:02:46,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:02:46,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:02:46,098 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:02:46,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388a8c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46, skipping insertion in model container [2018-01-24 16:02:46,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,115 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:02:46,161 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:02:46,277 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:02:46,294 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:02:46,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46 WrapperNode [2018-01-24 16:02:46,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:02:46,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:02:46,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:02:46,303 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:02:46,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (1/1) ... [2018-01-24 16:02:46,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:02:46,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:02:46,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:02:46,338 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:02:46,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (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 [2018-01-24 16:02:46,385 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure f6 [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure g6 [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure probe1_6 [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 16:02:46,386 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:02:46,386 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 16:02:46,387 INFO L128 BoogieDeclarations]: Found specification of procedure f6 [2018-01-24 16:02:46,388 INFO L128 BoogieDeclarations]: Found specification of procedure g6 [2018-01-24 16:02:46,388 INFO L128 BoogieDeclarations]: Found specification of procedure probe1_6 [2018-01-24 16:02:46,388 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_6 [2018-01-24 16:02:46,388 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 16:02:46,388 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:02:46,388 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:02:46,389 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:02:46,610 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:02:46,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:02:46 BoogieIcfgContainer [2018-01-24 16:02:46,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:02:46,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 16:02:46,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 16:02:46,615 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 16:02:46,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 04:02:46" (1/3) ... [2018-01-24 16:02:46,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242c1ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:02:46, skipping insertion in model container [2018-01-24 16:02:46,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:02:46" (2/3) ... [2018-01-24 16:02:46,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242c1ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:02:46, skipping insertion in model container [2018-01-24 16:02:46,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:02:46" (3/3) ... [2018-01-24 16:02:46,618 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test6_true-valid-memsafety_true-termination.i [2018-01-24 16:02:46,625 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 16:02:46,631 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-24 16:02:46,670 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 16:02:46,670 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 16:02:46,670 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 16:02:46,670 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 16:02:46,670 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 16:02:46,670 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 16:02:46,670 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 16:02:46,670 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 16:02:46,671 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 16:02:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-01-24 16:02:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 16:02:46,697 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:46,697 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 16:02:46,698 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:46,702 INFO L82 PathProgramCache]: Analyzing trace with hash 3262148, now seen corresponding path program 1 times [2018-01-24 16:02:46,704 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:46,753 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:46,754 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:46,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:46,754 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:46,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:46,866 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:46,866 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 16:02:46,866 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:46,868 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 16:02:46,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 16:02:46,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:02:46,881 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2018-01-24 16:02:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:47,086 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2018-01-24 16:02:47,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 16:02:47,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 16:02:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:47,097 INFO L225 Difference]: With dead ends: 81 [2018-01-24 16:02:47,097 INFO L226 Difference]: Without dead ends: 76 [2018-01-24 16:02:47,100 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:02:47,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-01-24 16:02:47,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2018-01-24 16:02:47,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 16:02:47,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-01-24 16:02:47,140 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 4 [2018-01-24 16:02:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:47,141 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-01-24 16:02:47,141 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 16:02:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-01-24 16:02:47,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 16:02:47,141 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:47,141 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 16:02:47,142 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:47,142 INFO L82 PathProgramCache]: Analyzing trace with hash 3262149, now seen corresponding path program 1 times [2018-01-24 16:02:47,142 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:47,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,144 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:47,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,144 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:47,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:47,217 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:47,217 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 16:02:47,218 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:47,219 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 16:02:47,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 16:02:47,220 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:02:47,220 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 3 states. [2018-01-24 16:02:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:47,287 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2018-01-24 16:02:47,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 16:02:47,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 16:02:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:47,289 INFO L225 Difference]: With dead ends: 118 [2018-01-24 16:02:47,290 INFO L226 Difference]: Without dead ends: 116 [2018-01-24 16:02:47,291 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:02:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-01-24 16:02:47,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2018-01-24 16:02:47,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-01-24 16:02:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2018-01-24 16:02:47,308 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 4 [2018-01-24 16:02:47,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:47,308 INFO L432 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2018-01-24 16:02:47,308 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 16:02:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2018-01-24 16:02:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 16:02:47,310 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:47,310 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] [2018-01-24 16:02:47,310 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:47,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1144751463, now seen corresponding path program 1 times [2018-01-24 16:02:47,311 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:47,312 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,313 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:47,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,313 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:47,339 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:47,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:47,447 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:47,447 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 16:02:47,447 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:47,448 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 16:02:47,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 16:02:47,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:02:47,449 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand 6 states. [2018-01-24 16:02:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:47,747 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2018-01-24 16:02:47,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 16:02:47,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 16:02:47,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:47,749 INFO L225 Difference]: With dead ends: 124 [2018-01-24 16:02:47,749 INFO L226 Difference]: Without dead ends: 118 [2018-01-24 16:02:47,750 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-01-24 16:02:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-01-24 16:02:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2018-01-24 16:02:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-01-24 16:02:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2018-01-24 16:02:47,768 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 24 [2018-01-24 16:02:47,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:47,768 INFO L432 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2018-01-24 16:02:47,768 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 16:02:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2018-01-24 16:02:47,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 16:02:47,770 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:47,770 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] [2018-01-24 16:02:47,770 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:47,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1144751462, now seen corresponding path program 1 times [2018-01-24 16:02:47,770 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:47,772 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,772 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:47,773 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,773 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:47,796 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:47,894 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:47,894 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 16:02:47,894 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:47,895 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 16:02:47,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 16:02:47,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:02:47,895 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand 6 states. [2018-01-24 16:02:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:47,944 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2018-01-24 16:02:47,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:02:47,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 16:02:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:47,946 INFO L225 Difference]: With dead ends: 145 [2018-01-24 16:02:47,946 INFO L226 Difference]: Without dead ends: 116 [2018-01-24 16:02:47,947 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:02:47,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-01-24 16:02:47,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2018-01-24 16:02:47,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-01-24 16:02:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2018-01-24 16:02:47,962 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 24 [2018-01-24 16:02:47,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:47,963 INFO L432 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2018-01-24 16:02:47,963 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 16:02:47,963 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2018-01-24 16:02:47,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 16:02:47,964 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:47,964 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] [2018-01-24 16:02:47,964 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:47,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1288261138, now seen corresponding path program 1 times [2018-01-24 16:02:47,964 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:47,965 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,965 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:47,966 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:47,966 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:47,984 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:48,056 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:48,056 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 16:02:48,056 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:48,056 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 16:02:48,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 16:02:48,057 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 16:02:48,057 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand 5 states. [2018-01-24 16:02:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:48,081 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2018-01-24 16:02:48,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 16:02:48,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-01-24 16:02:48,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:48,083 INFO L225 Difference]: With dead ends: 125 [2018-01-24 16:02:48,083 INFO L226 Difference]: Without dead ends: 73 [2018-01-24 16:02:48,084 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 16:02:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-24 16:02:48,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-01-24 16:02:48,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-24 16:02:48,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2018-01-24 16:02:48,094 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 24 [2018-01-24 16:02:48,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:48,095 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2018-01-24 16:02:48,095 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 16:02:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2018-01-24 16:02:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 16:02:48,096 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:48,096 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] [2018-01-24 16:02:48,096 INFO L371 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:48,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1988329134, now seen corresponding path program 1 times [2018-01-24 16:02:48,097 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:48,098 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,098 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:48,098 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,098 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:48,117 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:48,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:48,166 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:48,166 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 16:02:48,166 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:48,167 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 16:02:48,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 16:02:48,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:02:48,167 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 6 states. [2018-01-24 16:02:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:48,191 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2018-01-24 16:02:48,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:02:48,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 16:02:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:48,193 INFO L225 Difference]: With dead ends: 79 [2018-01-24 16:02:48,193 INFO L226 Difference]: Without dead ends: 69 [2018-01-24 16:02:48,194 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:02:48,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-01-24 16:02:48,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-01-24 16:02:48,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-01-24 16:02:48,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-01-24 16:02:48,204 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 24 [2018-01-24 16:02:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:48,204 INFO L432 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-01-24 16:02:48,204 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 16:02:48,204 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-01-24 16:02:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 16:02:48,205 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:48,205 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] [2018-01-24 16:02:48,205 INFO L371 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:48,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1956813492, now seen corresponding path program 1 times [2018-01-24 16:02:48,205 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:48,206 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,206 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:48,206 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,207 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:48,221 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:48,273 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:48,273 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 16:02:48,274 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:48,274 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 16:02:48,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 16:02:48,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:02:48,275 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 6 states. [2018-01-24 16:02:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:48,314 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-01-24 16:02:48,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:02:48,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-24 16:02:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:48,317 INFO L225 Difference]: With dead ends: 69 [2018-01-24 16:02:48,317 INFO L226 Difference]: Without dead ends: 68 [2018-01-24 16:02:48,317 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:02:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-24 16:02:48,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-01-24 16:02:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-01-24 16:02:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2018-01-24 16:02:48,325 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 26 [2018-01-24 16:02:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:48,326 INFO L432 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2018-01-24 16:02:48,326 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 16:02:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2018-01-24 16:02:48,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 16:02:48,327 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:48,327 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] [2018-01-24 16:02:48,327 INFO L371 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:48,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1956813493, now seen corresponding path program 1 times [2018-01-24 16:02:48,328 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:48,329 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,329 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:48,329 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,329 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:48,344 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:48,404 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:48,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 16:02:48,404 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:48,405 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 16:02:48,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 16:02:48,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:02:48,406 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 6 states. [2018-01-24 16:02:48,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:48,542 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2018-01-24 16:02:48,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:02:48,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-24 16:02:48,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:48,543 INFO L225 Difference]: With dead ends: 68 [2018-01-24 16:02:48,543 INFO L226 Difference]: Without dead ends: 67 [2018-01-24 16:02:48,544 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:02:48,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-24 16:02:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-01-24 16:02:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 16:02:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-01-24 16:02:48,549 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 26 [2018-01-24 16:02:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:48,549 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-01-24 16:02:48,549 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 16:02:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-01-24 16:02:48,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 16:02:48,550 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:48,550 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] [2018-01-24 16:02:48,551 INFO L371 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:48,551 INFO L82 PathProgramCache]: Analyzing trace with hash 840727273, now seen corresponding path program 1 times [2018-01-24 16:02:48,551 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:48,552 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,552 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:48,552 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:48,552 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:48,572 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:48,729 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:48,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 16:02:48,729 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:48,729 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 16:02:48,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 16:02:48,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 16:02:48,730 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 8 states. [2018-01-24 16:02:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:49,118 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-01-24 16:02:49,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 16:02:49,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-01-24 16:02:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:49,122 INFO L225 Difference]: With dead ends: 76 [2018-01-24 16:02:49,122 INFO L226 Difference]: Without dead ends: 75 [2018-01-24 16:02:49,123 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-01-24 16:02:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-01-24 16:02:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2018-01-24 16:02:49,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-01-24 16:02:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2018-01-24 16:02:49,128 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 32 [2018-01-24 16:02:49,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:49,129 INFO L432 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2018-01-24 16:02:49,129 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 16:02:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2018-01-24 16:02:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 16:02:49,130 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:49,130 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] [2018-01-24 16:02:49,130 INFO L371 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:49,130 INFO L82 PathProgramCache]: Analyzing trace with hash 840727274, now seen corresponding path program 1 times [2018-01-24 16:02:49,131 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:49,132 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:49,132 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:49,132 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:49,132 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:49,145 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:49,257 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:49,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 16:02:49,257 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:49,257 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 16:02:49,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 16:02:49,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-24 16:02:49,258 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 10 states. [2018-01-24 16:02:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:49,680 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2018-01-24 16:02:49,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-24 16:02:49,680 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-01-24 16:02:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:49,681 INFO L225 Difference]: With dead ends: 70 [2018-01-24 16:02:49,681 INFO L226 Difference]: Without dead ends: 68 [2018-01-24 16:02:49,682 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2018-01-24 16:02:49,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-24 16:02:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2018-01-24 16:02:49,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-01-24 16:02:49,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2018-01-24 16:02:49,688 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 32 [2018-01-24 16:02:49,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:49,688 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2018-01-24 16:02:49,688 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 16:02:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2018-01-24 16:02:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 16:02:49,689 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:49,689 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] [2018-01-24 16:02:49,689 INFO L371 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:49,690 INFO L82 PathProgramCache]: Analyzing trace with hash -229619546, now seen corresponding path program 1 times [2018-01-24 16:02:49,690 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:49,691 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:49,691 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:49,691 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:49,691 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:49,704 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:49,854 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:49,854 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 16:02:49,854 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:49,855 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 16:02:49,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 16:02:49,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 16:02:49,855 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 8 states. [2018-01-24 16:02:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:50,139 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2018-01-24 16:02:50,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 16:02:50,139 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-01-24 16:02:50,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:50,140 INFO L225 Difference]: With dead ends: 70 [2018-01-24 16:02:50,140 INFO L226 Difference]: Without dead ends: 64 [2018-01-24 16:02:50,140 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-01-24 16:02:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-24 16:02:50,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-01-24 16:02:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-01-24 16:02:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-01-24 16:02:50,147 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 32 [2018-01-24 16:02:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:50,147 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-01-24 16:02:50,147 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 16:02:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-01-24 16:02:50,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-24 16:02:50,148 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:50,148 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] [2018-01-24 16:02:50,148 INFO L371 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:50,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1621100812, now seen corresponding path program 1 times [2018-01-24 16:02:50,148 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:50,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,149 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:50,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,149 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:50,160 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:50,218 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:50,218 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 16:02:50,218 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:50,219 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 16:02:50,219 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 16:02:50,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:02:50,219 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2018-01-24 16:02:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:50,245 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2018-01-24 16:02:50,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:02:50,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-01-24 16:02:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:50,247 INFO L225 Difference]: With dead ends: 77 [2018-01-24 16:02:50,247 INFO L226 Difference]: Without dead ends: 54 [2018-01-24 16:02:50,247 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:02:50,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-24 16:02:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-01-24 16:02:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-24 16:02:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-01-24 16:02:50,252 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 34 [2018-01-24 16:02:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:50,253 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-01-24 16:02:50,253 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 16:02:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-01-24 16:02:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-01-24 16:02:50,254 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:50,254 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] [2018-01-24 16:02:50,254 INFO L371 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:50,254 INFO L82 PathProgramCache]: Analyzing trace with hash -945807698, now seen corresponding path program 1 times [2018-01-24 16:02:50,254 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:50,255 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,255 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:50,255 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,255 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:50,266 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:50,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:50,418 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:50,418 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 16:02:50,418 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:50,418 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 16:02:50,419 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 16:02:50,419 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 16:02:50,419 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 8 states. [2018-01-24 16:02:50,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:50,587 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-01-24 16:02:50,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 16:02:50,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-01-24 16:02:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:50,588 INFO L225 Difference]: With dead ends: 54 [2018-01-24 16:02:50,588 INFO L226 Difference]: Without dead ends: 53 [2018-01-24 16:02:50,589 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-01-24 16:02:50,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-24 16:02:50,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-01-24 16:02:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-01-24 16:02:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-01-24 16:02:50,597 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 40 [2018-01-24 16:02:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:50,597 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-01-24 16:02:50,597 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 16:02:50,597 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-01-24 16:02:50,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 16:02:50,598 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:50,598 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] [2018-01-24 16:02:50,598 INFO L371 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:50,598 INFO L82 PathProgramCache]: Analyzing trace with hash 744732401, now seen corresponding path program 1 times [2018-01-24 16:02:50,598 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:50,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,599 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:50,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,599 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:50,611 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:50,708 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:50,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-24 16:02:50,708 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:50,709 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 16:02:50,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 16:02:50,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-01-24 16:02:50,709 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 12 states. [2018-01-24 16:02:50,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:50,865 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-01-24 16:02:50,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 16:02:50,884 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-01-24 16:02:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:50,885 INFO L225 Difference]: With dead ends: 53 [2018-01-24 16:02:50,885 INFO L226 Difference]: Without dead ends: 52 [2018-01-24 16:02:50,885 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2018-01-24 16:02:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-01-24 16:02:50,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-01-24 16:02:50,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-24 16:02:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-01-24 16:02:50,891 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 41 [2018-01-24 16:02:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:50,891 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-01-24 16:02:50,892 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 16:02:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-01-24 16:02:50,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 16:02:50,892 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:50,892 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] [2018-01-24 16:02:50,893 INFO L371 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:50,893 INFO L82 PathProgramCache]: Analyzing trace with hash 744732402, now seen corresponding path program 1 times [2018-01-24 16:02:50,893 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:50,894 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,894 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:50,894 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:50,894 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:50,904 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:51,091 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:51,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-24 16:02:51,091 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:51,092 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 16:02:51,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 16:02:51,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-01-24 16:02:51,092 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 12 states. [2018-01-24 16:02:51,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:51,269 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-01-24 16:02:51,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 16:02:51,269 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-01-24 16:02:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:51,270 INFO L225 Difference]: With dead ends: 52 [2018-01-24 16:02:51,270 INFO L226 Difference]: Without dead ends: 51 [2018-01-24 16:02:51,270 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-01-24 16:02:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-24 16:02:51,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-01-24 16:02:51,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-01-24 16:02:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-01-24 16:02:51,278 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 41 [2018-01-24 16:02:51,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:51,278 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-01-24 16:02:51,278 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 16:02:51,278 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-01-24 16:02:51,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 16:02:51,279 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:51,279 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] [2018-01-24 16:02:51,279 INFO L371 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:51,280 INFO L82 PathProgramCache]: Analyzing trace with hash 746273508, now seen corresponding path program 1 times [2018-01-24 16:02:51,280 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:51,281 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:51,281 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:51,281 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:51,282 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:51,293 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:51,348 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:51,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 16:02:51,349 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:51,349 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 16:02:51,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 16:02:51,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 16:02:51,350 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 5 states. [2018-01-24 16:02:51,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:51,375 INFO L93 Difference]: Finished difference Result 55 states and 54 transitions. [2018-01-24 16:02:51,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 16:02:51,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-01-24 16:02:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:51,376 INFO L225 Difference]: With dead ends: 55 [2018-01-24 16:02:51,376 INFO L226 Difference]: Without dead ends: 50 [2018-01-24 16:02:51,376 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 16:02:51,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-01-24 16:02:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-01-24 16:02:51,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-01-24 16:02:51,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2018-01-24 16:02:51,382 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 41 [2018-01-24 16:02:51,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:51,383 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2018-01-24 16:02:51,383 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 16:02:51,383 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2018-01-24 16:02:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-01-24 16:02:51,383 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:51,384 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] [2018-01-24 16:02:51,384 INFO L371 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:51,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1423792391, now seen corresponding path program 1 times [2018-01-24 16:02:51,384 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:51,385 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:51,385 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:51,385 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:51,385 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:51,396 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:51,704 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:51,704 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-24 16:02:51,704 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:51,704 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 16:02:51,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 16:02:51,705 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-01-24 16:02:51,705 INFO L87 Difference]: Start difference. First operand 50 states and 49 transitions. Second operand 14 states. [2018-01-24 16:02:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:52,280 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2018-01-24 16:02:52,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-24 16:02:52,280 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 45 [2018-01-24 16:02:52,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:52,281 INFO L225 Difference]: With dead ends: 50 [2018-01-24 16:02:52,281 INFO L226 Difference]: Without dead ends: 49 [2018-01-24 16:02:52,281 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2018-01-24 16:02:52,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-01-24 16:02:52,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-01-24 16:02:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-01-24 16:02:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 48 transitions. [2018-01-24 16:02:52,286 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 48 transitions. Word has length 45 [2018-01-24 16:02:52,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:52,287 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 48 transitions. [2018-01-24 16:02:52,287 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 16:02:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 48 transitions. [2018-01-24 16:02:52,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 16:02:52,287 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:02:52,287 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] [2018-01-24 16:02:52,287 INFO L371 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, disconnect_6Err0RequiresViolation, disconnect_6Err2RequiresViolation, disconnect_6Err1RequiresViolation, disconnect_6Err3RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-01-24 16:02:52,288 INFO L82 PathProgramCache]: Analyzing trace with hash -897879172, now seen corresponding path program 1 times [2018-01-24 16:02:52,288 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:02:52,288 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:52,289 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:02:52,289 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:02:52,289 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:02:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:02:52,305 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:02:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:02:52,486 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:02:52,487 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-01-24 16:02:52,487 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:02:52,487 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-24 16:02:52,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-24 16:02:52,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-01-24 16:02:52,487 INFO L87 Difference]: Start difference. First operand 49 states and 48 transitions. Second operand 13 states. [2018-01-24 16:02:52,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:02:52,740 INFO L93 Difference]: Finished difference Result 49 states and 48 transitions. [2018-01-24 16:02:52,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-24 16:02:52,741 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2018-01-24 16:02:52,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:02:52,741 INFO L225 Difference]: With dead ends: 49 [2018-01-24 16:02:52,741 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 16:02:52,742 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-01-24 16:02:52,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 16:02:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 16:02:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 16:02:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 16:02:52,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-01-24 16:02:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:02:52,743 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 16:02:52,743 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-24 16:02:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 16:02:52,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 16:02:52,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 16:02:53,018 WARN L146 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 66 DAG size of output 51 [2018-01-24 16:02:53,443 WARN L146 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 99 DAG size of output 73 [2018-01-24 16:02:53,503 INFO L404 ceAbstractionStarter]: At program point f6ENTRY(lines 1434 1436) the Hoare annotation is: true [2018-01-24 16:02:53,503 INFO L401 ceAbstractionStarter]: For program point f6FINAL(lines 1434 1436) no Hoare annotation was computed. [2018-01-24 16:02:53,503 INFO L401 ceAbstractionStarter]: For program point f6EXIT(lines 1434 1436) no Hoare annotation was computed. [2018-01-24 16:02:53,503 INFO L397 ceAbstractionStarter]: At program point ldv_mallocENTRY(lines 1072 1078) the Hoare annotation is: (or (not (= (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4))) [2018-01-24 16:02:53,503 INFO L401 ceAbstractionStarter]: For program point L1073(lines 1073 1077) no Hoare annotation was computed. [2018-01-24 16:02:53,503 INFO L401 ceAbstractionStarter]: For program point L1074'(line 1074) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point ldv_mallocEXIT(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point ldv_mallocFINAL(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point L1074(line 1074) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point L1466'(line 1466) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point L1466(line 1466) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 1478) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 1478) the Hoare annotation is: true [2018-01-24 16:02:53,504 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,504 INFO L397 ceAbstractionStarter]: At program point L1(lines 1 1478) the Hoare annotation is: (and (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (= 1 (select |#valid| |~#a6.base|)) (= |~#a6.offset| 0) (= (select |#length| |~#a6.base|) 4)) [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 1476 1478) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (and (= |#valid| |old(#valid)|) (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (= |old(#length)| |#length|)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4))) [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 1476 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 1476 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 1476 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L397 ceAbstractionStarter]: At program point disconnect_6ENTRY(lines 1461 1463) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#a6.base|) |~#a6.offset|))) (or (not (= 0 |~#a6.offset|)) (not (= (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|) 0)) (= 0 .cse0) (not (= 0 (select (select |#memory_$Pointer$.offset| |disconnect_6_#in~a.base|) |disconnect_6_#in~a.offset|))) (< (select |#length| |disconnect_6_#in~a.base|) 4) (not (= (select |#length| |~#a6.base|) 4)) (= |~#a6.base| .cse0) (not (= (select |old(#valid)| (select (select |#memory_$Pointer$.base| |disconnect_6_#in~a.base|) |disconnect_6_#in~a.offset|)) 1)) (not (= (select |old(#valid)| |disconnect_6_#in~a.base|) 1)) (not (= 0 |disconnect_6_#in~a.offset|)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (= |#valid| |old(#valid)|) (not (= (select |old(#valid)| .cse0) 1)))) [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point L1462''(line 1462) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point L1462'(line 1462) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err3RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,505 INFO L401 ceAbstractionStarter]: For program point disconnect_6FINAL(lines 1461 1463) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err2RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point disconnect_6EXIT(lines 1461 1463) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point L1462(line 1462) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point L1470'(lines 1470 1472) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point entry_pointErr1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point entry_pointEXIT(lines 1468 1474) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point L1470(lines 1470 1472) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L397 ceAbstractionStarter]: At program point L1471(line 1471) the Hoare annotation is: (or (let ((.cse0 (@diff |old(#length)| |#length|)) (.cse1 (select (select |#memory_$Pointer$.base| |~#a6.base|) |~#a6.offset|))) (and (= |#length| (store |old(#length)| .cse0 (select |#length| .cse0))) (= 1 (select |#valid| .cse1)) (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (not (= 0 .cse1)) (or (= 0 (select |old(#valid)| .cse0)) (= |old(#length)| |#length|)) (= (select |old(#valid)| .cse1) 0) (= entry_point_~ret~11 0) (= |#valid| (let ((.cse2 (@diff |old(#valid)| |#valid|))) (store |old(#valid)| .cse2 (select |#valid| .cse2)))))) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4))) [2018-01-24 16:02:53,506 INFO L397 ceAbstractionStarter]: At program point entry_pointENTRY(lines 1468 1474) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (and (= |#valid| |old(#valid)|) (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (= |old(#length)| |#length|)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4))) [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point L1469(line 1469) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point entry_pointErr0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,506 INFO L401 ceAbstractionStarter]: For program point entry_pointFINAL(lines 1468 1474) no Hoare annotation was computed. [2018-01-24 16:02:53,507 INFO L401 ceAbstractionStarter]: For program point g6EXIT(lines 1438 1440) no Hoare annotation was computed. [2018-01-24 16:02:53,507 INFO L401 ceAbstractionStarter]: For program point g6FINAL(lines 1438 1440) no Hoare annotation was computed. [2018-01-24 16:02:53,507 INFO L404 ceAbstractionStarter]: At program point g6ENTRY(lines 1438 1440) the Hoare annotation is: true [2018-01-24 16:02:53,507 INFO L401 ceAbstractionStarter]: For program point L1453'(line 1453) no Hoare annotation was computed. [2018-01-24 16:02:53,507 INFO L401 ceAbstractionStarter]: For program point probe1_6Err1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,507 INFO L397 ceAbstractionStarter]: At program point L1452(line 1452) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (not (= (select (select |old(#memory_$Pointer$.offset)| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|) 0)) (not (= (select |old(#length)| |probe1_6_#in~a.base|) 4)) (not (= (select |old(#valid)| |probe1_6_#in~a.base|) 1)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4)) (let ((.cse0 (@diff |old(#length)| |#length|))) (and (= |#length| (store |old(#length)| .cse0 (select |#length| .cse0))) (= 1 (select |#valid| probe1_6_~a.base)) (not (= 0 probe1_6_~p~9.base)) (<= (+ probe1_6_~ret~9 1) 0) (= 1 (select |#valid| probe1_6_~p~9.base)) (= 0 (select |old(#valid)| probe1_6_~p~9.base)) (or (= 0 (select |old(#valid)| .cse0)) (= |old(#length)| |#length|)) (= (select |#length| probe1_6_~a.base) 4) (= probe1_6_~p~9.offset 0) (= probe1_6_~a.offset 0) (= |#valid| (let ((.cse1 (@diff |old(#valid)| |#valid|))) (store |old(#valid)| .cse1 (select |#valid| .cse1)))))) (not (= 0 |probe1_6_#in~a.offset|))) [2018-01-24 16:02:53,507 INFO L401 ceAbstractionStarter]: For program point L1453(line 1453) no Hoare annotation was computed. [2018-01-24 16:02:53,507 INFO L397 ceAbstractionStarter]: At program point L1450(line 1450) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (not (= (select (select |old(#memory_$Pointer$.offset)| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|) 0)) (not (= (select |old(#length)| |probe1_6_#in~a.base|) 4)) (not (= (select |old(#valid)| |probe1_6_#in~a.base|) 1)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4)) (let ((.cse0 (@diff |old(#length)| |#length|))) (and (= |#length| (store |old(#length)| .cse0 (select |#length| .cse0))) (not (= 0 probe1_6_~p~9.base)) (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (= 1 (select |#valid| probe1_6_~p~9.base)) (= 0 (select |old(#valid)| probe1_6_~p~9.base)) (or (= 0 (select |old(#valid)| .cse0)) (= |old(#length)| |#length|)) (= 0 (select (select |#memory_$Pointer$.offset| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|)) (= probe1_6_~a.base |probe1_6_#in~a.base|) (= probe1_6_~p~9.offset 0) (= probe1_6_~a.offset 0) (= |#valid| (let ((.cse1 (@diff |old(#valid)| |#valid|))) (store |old(#valid)| .cse1 (select |#valid| .cse1)))))) (not (= 0 |probe1_6_#in~a.offset|))) [2018-01-24 16:02:53,507 INFO L401 ceAbstractionStarter]: For program point L1451(lines 1451 1452) no Hoare annotation was computed. [2018-01-24 16:02:53,507 INFO L401 ceAbstractionStarter]: For program point L1447'(line 1447) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L397 ceAbstractionStarter]: At program point probe1_6ENTRY(lines 1442 1459) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (not (= (select (select |old(#memory_$Pointer$.offset)| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|) 0)) (not (= (select |old(#length)| |probe1_6_#in~a.base|) 4)) (not (= (select |old(#valid)| |probe1_6_#in~a.base|) 1)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4)) (and (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|)) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) (not (= 0 |probe1_6_#in~a.offset|))) [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point L1457(line 1457) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point probe1_6Err2RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point L1444'(line 1444) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point L1450'(line 1450) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point probe1_6Err3RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L397 ceAbstractionStarter]: At program point L1444(line 1444) the Hoare annotation is: (or (and (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|)) (= |#valid| |old(#valid)|) (= probe1_6_~a.base |probe1_6_#in~a.base|) (<= 3 probe1_6_~ret~9) (= probe1_6_~a.offset 0) (= |old(#length)| |#length|)) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (not (= (select (select |old(#memory_$Pointer$.offset)| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|) 0)) (not (= (select |old(#length)| |probe1_6_#in~a.base|) 4)) (not (= (select |old(#valid)| |probe1_6_#in~a.base|) 1)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4)) (not (= 0 |probe1_6_#in~a.offset|))) [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point probe1_6EXIT(lines 1442 1459) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L397 ceAbstractionStarter]: At program point L1447(line 1447) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.offset)| |~#a6.base|) |~#a6.offset|) 0)) (not (= 0 |~#a6.offset|)) (let ((.cse0 (@diff |old(#length)| |#length|))) (and (= |#length| (store |old(#length)| .cse0 (select |#length| .cse0))) (not (= 0 probe1_6_~p~9.base)) (= 0 (select (select |#memory_$Pointer$.offset| |~#a6.base|) |~#a6.offset|)) (= 1 (select |#valid| probe1_6_~p~9.base)) (= probe1_6_~p~9.offset 0) (= 0 (select |old(#valid)| probe1_6_~p~9.base)) (or (= 0 (select |old(#valid)| .cse0)) (= |old(#length)| |#length|)) (= 0 (select (select |#memory_$Pointer$.offset| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|)) (= probe1_6_~a.base |probe1_6_#in~a.base|) (<= 3 probe1_6_~ret~9) (= probe1_6_~a.offset 0) (= |#valid| (let ((.cse1 (@diff |old(#valid)| |#valid|))) (store |old(#valid)| .cse1 (select |#valid| .cse1)))))) (not (= (select (select |old(#memory_$Pointer$.offset)| |probe1_6_#in~a.base|) |probe1_6_#in~a.offset|) 0)) (not (= (select |old(#length)| |probe1_6_#in~a.base|) 4)) (not (= (select |old(#valid)| |probe1_6_#in~a.base|) 1)) (not (= 1 (select |old(#valid)| |~#a6.base|))) (not (= (select |old(#length)| |~#a6.base|) 4)) (not (= 0 |probe1_6_#in~a.offset|))) [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point L1448(lines 1448 1449) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point L1445(lines 1445 1446) no Hoare annotation was computed. [2018-01-24 16:02:53,508 INFO L401 ceAbstractionStarter]: For program point probe1_6Err0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 16:02:53,509 INFO L401 ceAbstractionStarter]: For program point probe1_6FINAL(lines 1442 1459) no Hoare annotation was computed. [2018-01-24 16:02:53,513 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (@diff (Array Int Int) (Array Int Int) Int) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:506) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:210) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:125) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translateStore(Term2Expression.java:277) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:125) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:159) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:125) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:159) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:125) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:159) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:107) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:91) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:219) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-24 16:02:53,517 INFO L168 Benchmark]: Toolchain (without parser) took 7430.12 ms. Allocated memory was 307.2 MB in the beginning and 557.8 MB in the end (delta: 250.6 MB). Free memory was 266.3 MB in the beginning and 334.0 MB in the end (delta: -67.7 MB). Peak memory consumption was 182.9 MB. Max. memory is 5.3 GB. [2018-01-24 16:02:53,519 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 307.2 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:02:53,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.94 ms. Allocated memory is still 307.2 MB. Free memory was 266.3 MB in the beginning and 252.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 5.3 GB. [2018-01-24 16:02:53,519 INFO L168 Benchmark]: Boogie Preprocessor took 35.54 ms. Allocated memory is still 307.2 MB. Free memory was 252.9 MB in the beginning and 250.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:02:53,519 INFO L168 Benchmark]: RCFGBuilder took 273.25 ms. Allocated memory is still 307.2 MB. Free memory was 250.9 MB in the beginning and 231.3 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 5.3 GB. [2018-01-24 16:02:53,520 INFO L168 Benchmark]: TraceAbstraction took 6903.68 ms. Allocated memory was 307.2 MB in the beginning and 557.8 MB in the end (delta: 250.6 MB). Free memory was 231.3 MB in the beginning and 334.0 MB in the end (delta: -102.7 MB). Peak memory consumption was 147.9 MB. Max. memory is 5.3 GB. [2018-01-24 16:02:53,522 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 307.2 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 209.94 ms. Allocated memory is still 307.2 MB. Free memory was 266.3 MB in the beginning and 252.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.54 ms. Allocated memory is still 307.2 MB. Free memory was 252.9 MB in the beginning and 250.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 273.25 ms. Allocated memory is still 307.2 MB. Free memory was 250.9 MB in the beginning and 231.3 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 6903.68 ms. Allocated memory was 307.2 MB in the beginning and 557.8 MB in the end (delta: 250.6 MB). Free memory was 231.3 MB in the beginning and 334.0 MB in the end (delta: -102.7 MB). Peak memory consumption was 147.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1476]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (@diff (Array Int Int) (Array Int Int) Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (@diff (Array Int Int) (Array Int Int) Int): de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:506) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test6_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_16-02-53-530.csv Received shutdown request...