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_RubberTaipan+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 13:34:21,941 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:34:21,943 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:34:21,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:34:21,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:34:21,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:34:21,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:34:21,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:34:21,965 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:34:21,966 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:34:21,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:34:21,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:34:21,968 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:34:21,969 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:34:21,970 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:34:21,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:34:21,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:34:21,977 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:34:21,979 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:34:21,980 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:34:21,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 13:34:21,988 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 13:34:21,989 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 13:34:21,989 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf [2018-01-24 13:34:21,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:34:21,998 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:34:21,999 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:34:21,999 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:34:21,999 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:34:21,999 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:34:21,999 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:34:22,000 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:34:22,000 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:34:22,000 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:34:22,000 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:34:22,000 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:34:22,000 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:34:22,001 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:34:22,001 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:34:22,001 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:34:22,001 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:34:22,001 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:34:22,001 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:34:22,001 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:34:22,002 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:34:22,002 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:34:22,002 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:34:22,002 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:34:22,002 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:34:22,003 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:34:22,003 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:34:22,003 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:34:22,003 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-01-24 13:34:22,003 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:34:22,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:34:22,003 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:34:22,004 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:34:22,004 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:34:22,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:34:22,052 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:34:22,056 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:34:22,058 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:34:22,058 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:34:22,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test6_true-valid-memsafety_true-termination.i [2018-01-24 13:34:22,282 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:34:22,287 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:34:22,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:34:22,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:34:22,293 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:34:22,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,297 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 01:34:22, skipping insertion in model container [2018-01-24 13:34:22,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,312 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:34:22,359 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:34:22,478 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:34:22,496 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:34:22,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22 WrapperNode [2018-01-24 13:34:22,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:34:22,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:34:22,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:34:22,507 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:34:22,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (1/1) ... [2018-01-24 13:34:22,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:34:22,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:34:22,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:34:22,544 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:34:22,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (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 13:34:22,590 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure f6 [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure g6 [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure probe1_6 [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 13:34:22,591 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:34:22,591 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 13:34:22,591 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure f6 [2018-01-24 13:34:22,592 INFO L128 BoogieDeclarations]: Found specification of procedure g6 [2018-01-24 13:34:22,593 INFO L128 BoogieDeclarations]: Found specification of procedure probe1_6 [2018-01-24 13:34:22,593 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_6 [2018-01-24 13:34:22,593 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 13:34:22,593 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:34:22,593 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:34:22,593 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:34:22,840 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:34:22,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:34:22 BoogieIcfgContainer [2018-01-24 13:34:22,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:34:22,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 13:34:22,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 13:34:22,843 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 13:34:22,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 01:34:22" (1/3) ... [2018-01-24 13:34:22,844 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 01:34:22, skipping insertion in model container [2018-01-24 13:34:22,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:34:22" (2/3) ... [2018-01-24 13:34:22,845 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 01:34:22, skipping insertion in model container [2018-01-24 13:34:22,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:34:22" (3/3) ... [2018-01-24 13:34:22,847 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test6_true-valid-memsafety_true-termination.i [2018-01-24 13:34:22,853 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 13:34:22,860 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-24 13:34:22,902 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 13:34:22,902 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 13:34:22,903 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 13:34:22,903 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 13:34:22,903 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 13:34:22,903 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 13:34:22,903 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 13:34:22,903 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 13:34:22,904 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 13:34:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-01-24 13:34:22,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 13:34:22,932 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:22,933 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 13:34:22,934 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 13:34:22,939 INFO L82 PathProgramCache]: Analyzing trace with hash 3262148, now seen corresponding path program 1 times [2018-01-24 13:34:22,942 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:23,009 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:23,010 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:23,010 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:23,010 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:23,054 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:23,111 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 13:34:23,113 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:23,113 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 13:34:23,113 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:23,116 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 13:34:23,131 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 13:34:23,131 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:34:23,134 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2018-01-24 13:34:23,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:23,322 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2018-01-24 13:34:23,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 13:34:23,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 13:34:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:23,333 INFO L225 Difference]: With dead ends: 81 [2018-01-24 13:34:23,333 INFO L226 Difference]: Without dead ends: 76 [2018-01-24 13:34:23,336 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 13:34:23,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-01-24 13:34:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2018-01-24 13:34:23,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 13:34:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-01-24 13:34:23,376 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 4 [2018-01-24 13:34:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:23,376 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-01-24 13:34:23,376 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 13:34:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-01-24 13:34:23,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 13:34:23,377 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:23,377 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 13:34:23,377 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 13:34:23,378 INFO L82 PathProgramCache]: Analyzing trace with hash 3262149, now seen corresponding path program 1 times [2018-01-24 13:34:23,378 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:23,380 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:23,380 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:23,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:23,381 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:23,399 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:23,453 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 13:34:23,453 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:23,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 13:34:23,453 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:23,455 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 13:34:23,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 13:34:23,456 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:34:23,456 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 3 states. [2018-01-24 13:34:23,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:23,533 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2018-01-24 13:34:23,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 13:34:23,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 13:34:23,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:23,536 INFO L225 Difference]: With dead ends: 118 [2018-01-24 13:34:23,536 INFO L226 Difference]: Without dead ends: 116 [2018-01-24 13:34:23,537 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 13:34:23,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-01-24 13:34:23,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2018-01-24 13:34:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-01-24 13:34:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2018-01-24 13:34:23,555 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 4 [2018-01-24 13:34:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:23,556 INFO L432 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2018-01-24 13:34:23,556 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 13:34:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2018-01-24 13:34:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 13:34:23,558 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:23,558 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 13:34:23,558 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 13:34:23,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1144751463, now seen corresponding path program 1 times [2018-01-24 13:34:23,558 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:23,560 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:23,560 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:23,560 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:23,560 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:23,588 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:23,694 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 13:34:23,694 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:23,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 13:34:23,694 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:23,695 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 13:34:23,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 13:34:23,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:34:23,696 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand 6 states. [2018-01-24 13:34:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:24,117 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2018-01-24 13:34:24,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 13:34:24,118 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 13:34:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:24,119 INFO L225 Difference]: With dead ends: 124 [2018-01-24 13:34:24,119 INFO L226 Difference]: Without dead ends: 118 [2018-01-24 13:34:24,120 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-01-24 13:34:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-01-24 13:34:24,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2018-01-24 13:34:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-01-24 13:34:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2018-01-24 13:34:24,139 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 24 [2018-01-24 13:34:24,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:24,140 INFO L432 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2018-01-24 13:34:24,140 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 13:34:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2018-01-24 13:34:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 13:34:24,141 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:24,141 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 13:34:24,141 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 13:34:24,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1144751462, now seen corresponding path program 1 times [2018-01-24 13:34:24,142 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:24,143 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,143 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:24,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,144 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:24,170 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:24,234 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 13:34:24,235 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:24,235 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 13:34:24,235 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:24,236 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 13:34:24,236 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 13:34:24,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:34:24,237 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand 6 states. [2018-01-24 13:34:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:24,282 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2018-01-24 13:34:24,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 13:34:24,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 13:34:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:24,284 INFO L225 Difference]: With dead ends: 145 [2018-01-24 13:34:24,284 INFO L226 Difference]: Without dead ends: 116 [2018-01-24 13:34:24,285 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 13:34:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-01-24 13:34:24,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2018-01-24 13:34:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-01-24 13:34:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2018-01-24 13:34:24,301 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 24 [2018-01-24 13:34:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:24,302 INFO L432 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2018-01-24 13:34:24,302 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 13:34:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2018-01-24 13:34:24,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 13:34:24,303 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:24,303 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 13:34:24,304 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 13:34:24,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1288261138, now seen corresponding path program 1 times [2018-01-24 13:34:24,304 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:24,306 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,306 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:24,306 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,306 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:24,323 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:24,393 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 13:34:24,393 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:24,393 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 13:34:24,393 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:24,393 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 13:34:24,394 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 13:34:24,394 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 13:34:24,394 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand 5 states. [2018-01-24 13:34:24,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:24,415 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2018-01-24 13:34:24,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 13:34:24,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-01-24 13:34:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:24,417 INFO L225 Difference]: With dead ends: 125 [2018-01-24 13:34:24,418 INFO L226 Difference]: Without dead ends: 73 [2018-01-24 13:34:24,418 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 13:34:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-24 13:34:24,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-01-24 13:34:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-24 13:34:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2018-01-24 13:34:24,428 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 24 [2018-01-24 13:34:24,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:24,428 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2018-01-24 13:34:24,429 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 13:34:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2018-01-24 13:34:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 13:34:24,430 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:24,430 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 13:34:24,430 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 13:34:24,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1988329134, now seen corresponding path program 1 times [2018-01-24 13:34:24,430 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:24,431 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,432 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:24,432 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,432 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:24,451 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:24,507 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 13:34:24,507 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:24,507 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 13:34:24,507 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:24,508 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 13:34:24,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 13:34:24,508 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:34:24,508 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 6 states. [2018-01-24 13:34:24,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:24,535 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2018-01-24 13:34:24,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 13:34:24,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 13:34:24,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:24,537 INFO L225 Difference]: With dead ends: 79 [2018-01-24 13:34:24,537 INFO L226 Difference]: Without dead ends: 69 [2018-01-24 13:34:24,537 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 13:34:24,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-01-24 13:34:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-01-24 13:34:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-01-24 13:34:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-01-24 13:34:24,545 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 24 [2018-01-24 13:34:24,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:24,546 INFO L432 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-01-24 13:34:24,546 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 13:34:24,546 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-01-24 13:34:24,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 13:34:24,547 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:24,547 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 13:34:24,547 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 13:34:24,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1956813492, now seen corresponding path program 1 times [2018-01-24 13:34:24,548 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:24,549 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,549 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:24,550 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,550 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:24,563 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:24,617 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 13:34:24,617 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:24,618 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 13:34:24,618 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:24,618 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 13:34:24,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 13:34:24,619 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:34:24,619 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 6 states. [2018-01-24 13:34:24,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:24,659 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-01-24 13:34:24,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 13:34:24,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-24 13:34:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:24,662 INFO L225 Difference]: With dead ends: 69 [2018-01-24 13:34:24,663 INFO L226 Difference]: Without dead ends: 68 [2018-01-24 13:34:24,663 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 13:34:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-24 13:34:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-01-24 13:34:24,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-01-24 13:34:24,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2018-01-24 13:34:24,674 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 26 [2018-01-24 13:34:24,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:24,674 INFO L432 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2018-01-24 13:34:24,674 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 13:34:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2018-01-24 13:34:24,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 13:34:24,675 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:24,675 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 13:34:24,676 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 13:34:24,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1956813493, now seen corresponding path program 1 times [2018-01-24 13:34:24,676 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:24,677 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,677 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:24,677 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,678 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:24,692 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:24,747 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 13:34:24,747 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:24,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 13:34:24,747 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:24,753 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 13:34:24,754 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 13:34:24,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:34:24,754 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 6 states. [2018-01-24 13:34:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:24,861 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2018-01-24 13:34:24,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 13:34:24,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-24 13:34:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:24,863 INFO L225 Difference]: With dead ends: 68 [2018-01-24 13:34:24,863 INFO L226 Difference]: Without dead ends: 67 [2018-01-24 13:34:24,864 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 13:34:24,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-24 13:34:24,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-01-24 13:34:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 13:34:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-01-24 13:34:24,872 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 26 [2018-01-24 13:34:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:24,873 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-01-24 13:34:24,873 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 13:34:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-01-24 13:34:24,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 13:34:24,874 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:24,874 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 13:34:24,874 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 13:34:24,875 INFO L82 PathProgramCache]: Analyzing trace with hash 840727273, now seen corresponding path program 1 times [2018-01-24 13:34:24,875 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:24,876 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,876 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:24,876 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:24,876 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:24,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:25,077 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 13:34:25,077 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:25,078 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 13:34:25,078 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:25,078 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 13:34:25,078 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 13:34:25,078 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 13:34:25,078 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 8 states. [2018-01-24 13:34:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:25,421 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-01-24 13:34:25,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 13:34:25,422 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-01-24 13:34:25,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:25,423 INFO L225 Difference]: With dead ends: 76 [2018-01-24 13:34:25,423 INFO L226 Difference]: Without dead ends: 75 [2018-01-24 13:34:25,423 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-01-24 13:34:25,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-01-24 13:34:25,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2018-01-24 13:34:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-01-24 13:34:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2018-01-24 13:34:25,429 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 32 [2018-01-24 13:34:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:25,430 INFO L432 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2018-01-24 13:34:25,430 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 13:34:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2018-01-24 13:34:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 13:34:25,431 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:25,431 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 13:34:25,431 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 13:34:25,432 INFO L82 PathProgramCache]: Analyzing trace with hash 840727274, now seen corresponding path program 1 times [2018-01-24 13:34:25,432 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:25,433 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:25,433 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:25,433 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:25,434 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:25,448 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:25,788 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 13:34:25,789 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:25,789 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 13:34:25,789 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:25,789 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 13:34:25,789 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 13:34:25,790 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-24 13:34:25,790 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 10 states. [2018-01-24 13:34:26,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:26,303 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2018-01-24 13:34:26,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-24 13:34:26,304 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-01-24 13:34:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:26,305 INFO L225 Difference]: With dead ends: 70 [2018-01-24 13:34:26,305 INFO L226 Difference]: Without dead ends: 68 [2018-01-24 13:34:26,306 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2018-01-24 13:34:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-24 13:34:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2018-01-24 13:34:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-01-24 13:34:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2018-01-24 13:34:26,313 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 32 [2018-01-24 13:34:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:26,313 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2018-01-24 13:34:26,313 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 13:34:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2018-01-24 13:34:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 13:34:26,314 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:26,314 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 13:34:26,314 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 13:34:26,315 INFO L82 PathProgramCache]: Analyzing trace with hash -229619546, now seen corresponding path program 1 times [2018-01-24 13:34:26,315 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:26,316 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:26,316 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:26,316 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:26,316 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:26,332 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:26,512 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 13:34:26,512 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:26,512 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 13:34:26,512 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:26,512 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 13:34:26,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 13:34:26,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 13:34:26,513 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 8 states. [2018-01-24 13:34:26,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:26,833 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2018-01-24 13:34:26,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 13:34:26,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-01-24 13:34:26,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:26,834 INFO L225 Difference]: With dead ends: 70 [2018-01-24 13:34:26,834 INFO L226 Difference]: Without dead ends: 64 [2018-01-24 13:34:26,834 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-01-24 13:34:26,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-24 13:34:26,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-01-24 13:34:26,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-01-24 13:34:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-01-24 13:34:26,843 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 32 [2018-01-24 13:34:26,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:26,843 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-01-24 13:34:26,843 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 13:34:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-01-24 13:34:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-24 13:34:26,845 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:26,845 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 13:34:26,845 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 13:34:26,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1621100812, now seen corresponding path program 1 times [2018-01-24 13:34:26,845 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:26,847 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:26,847 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:26,847 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:26,847 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:26,860 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:26,891 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 13:34:26,891 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:26,891 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 13:34:26,891 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:26,891 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 13:34:26,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 13:34:26,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 13:34:26,892 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2018-01-24 13:34:26,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:26,928 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2018-01-24 13:34:26,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 13:34:26,928 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-01-24 13:34:26,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:26,930 INFO L225 Difference]: With dead ends: 77 [2018-01-24 13:34:26,930 INFO L226 Difference]: Without dead ends: 54 [2018-01-24 13:34:26,930 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 13:34:26,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-24 13:34:26,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-01-24 13:34:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-24 13:34:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-01-24 13:34:26,937 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 34 [2018-01-24 13:34:26,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:26,937 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-01-24 13:34:26,938 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 13:34:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-01-24 13:34:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-01-24 13:34:26,939 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:26,939 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 13:34:26,939 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 13:34:26,939 INFO L82 PathProgramCache]: Analyzing trace with hash -945807698, now seen corresponding path program 1 times [2018-01-24 13:34:26,939 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:26,940 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:26,941 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:26,941 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:26,941 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:26,953 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:27,042 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 13:34:27,042 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:27,042 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 13:34:27,042 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:27,042 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 13:34:27,043 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 13:34:27,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 13:34:27,043 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 8 states. [2018-01-24 13:34:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:27,162 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-01-24 13:34:27,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 13:34:27,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-01-24 13:34:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:27,163 INFO L225 Difference]: With dead ends: 54 [2018-01-24 13:34:27,163 INFO L226 Difference]: Without dead ends: 53 [2018-01-24 13:34:27,163 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-01-24 13:34:27,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-24 13:34:27,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-01-24 13:34:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-01-24 13:34:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-01-24 13:34:27,172 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 40 [2018-01-24 13:34:27,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:27,172 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-01-24 13:34:27,172 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 13:34:27,173 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-01-24 13:34:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 13:34:27,173 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:27,173 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 13:34:27,173 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 13:34:27,174 INFO L82 PathProgramCache]: Analyzing trace with hash 744732401, now seen corresponding path program 1 times [2018-01-24 13:34:27,174 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:27,174 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,175 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:27,175 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,175 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:27,196 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:27,286 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 13:34:27,286 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:27,286 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-24 13:34:27,286 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:27,287 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 13:34:27,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 13:34:27,287 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-01-24 13:34:27,287 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 12 states. [2018-01-24 13:34:27,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:27,459 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-01-24 13:34:27,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 13:34:27,459 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-01-24 13:34:27,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:27,460 INFO L225 Difference]: With dead ends: 53 [2018-01-24 13:34:27,460 INFO L226 Difference]: Without dead ends: 52 [2018-01-24 13:34:27,461 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 13:34:27,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-01-24 13:34:27,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-01-24 13:34:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-24 13:34:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-01-24 13:34:27,467 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 41 [2018-01-24 13:34:27,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:27,467 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-01-24 13:34:27,467 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 13:34:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-01-24 13:34:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 13:34:27,468 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:27,468 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 13:34:27,468 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 13:34:27,468 INFO L82 PathProgramCache]: Analyzing trace with hash 744732402, now seen corresponding path program 1 times [2018-01-24 13:34:27,468 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:27,469 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,469 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:27,469 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,469 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:27,480 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:27,615 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 13:34:27,615 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:27,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-24 13:34:27,615 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:27,615 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 13:34:27,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 13:34:27,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-01-24 13:34:27,616 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 12 states. [2018-01-24 13:34:27,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:27,784 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-01-24 13:34:27,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 13:34:27,784 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-01-24 13:34:27,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:27,785 INFO L225 Difference]: With dead ends: 52 [2018-01-24 13:34:27,785 INFO L226 Difference]: Without dead ends: 51 [2018-01-24 13:34:27,785 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 13:34:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-24 13:34:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-01-24 13:34:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-01-24 13:34:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-01-24 13:34:27,793 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 41 [2018-01-24 13:34:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:27,793 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-01-24 13:34:27,793 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 13:34:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-01-24 13:34:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 13:34:27,795 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:27,795 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 13:34:27,795 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 13:34:27,795 INFO L82 PathProgramCache]: Analyzing trace with hash 746273508, now seen corresponding path program 1 times [2018-01-24 13:34:27,795 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:27,796 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,796 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:27,796 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,797 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:27,809 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:27,839 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 13:34:27,839 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:27,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 13:34:27,839 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:27,840 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 13:34:27,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 13:34:27,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 13:34:27,840 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 5 states. [2018-01-24 13:34:27,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:27,854 INFO L93 Difference]: Finished difference Result 55 states and 54 transitions. [2018-01-24 13:34:27,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 13:34:27,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-01-24 13:34:27,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:27,855 INFO L225 Difference]: With dead ends: 55 [2018-01-24 13:34:27,855 INFO L226 Difference]: Without dead ends: 50 [2018-01-24 13:34:27,856 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 13:34:27,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-01-24 13:34:27,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-01-24 13:34:27,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-01-24 13:34:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2018-01-24 13:34:27,864 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 41 [2018-01-24 13:34:27,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:27,864 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2018-01-24 13:34:27,864 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 13:34:27,864 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2018-01-24 13:34:27,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-01-24 13:34:27,865 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:27,865 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 13:34:27,865 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 13:34:27,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1423792391, now seen corresponding path program 1 times [2018-01-24 13:34:27,866 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:27,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,867 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:27,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:27,867 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:27,880 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:28,061 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 13:34:28,062 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:28,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-24 13:34:28,062 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:28,062 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 13:34:28,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 13:34:28,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-01-24 13:34:28,063 INFO L87 Difference]: Start difference. First operand 50 states and 49 transitions. Second operand 14 states. [2018-01-24 13:34:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:28,614 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2018-01-24 13:34:28,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-24 13:34:28,615 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 45 [2018-01-24 13:34:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:28,616 INFO L225 Difference]: With dead ends: 50 [2018-01-24 13:34:28,616 INFO L226 Difference]: Without dead ends: 49 [2018-01-24 13:34:28,616 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2018-01-24 13:34:28,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-01-24 13:34:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-01-24 13:34:28,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-01-24 13:34:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 48 transitions. [2018-01-24 13:34:28,624 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 48 transitions. Word has length 45 [2018-01-24 13:34:28,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:28,624 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 48 transitions. [2018-01-24 13:34:28,624 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 13:34:28,624 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 48 transitions. [2018-01-24 13:34:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 13:34:28,625 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:34:28,625 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 13:34:28,625 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 13:34:28,625 INFO L82 PathProgramCache]: Analyzing trace with hash -897879172, now seen corresponding path program 1 times [2018-01-24 13:34:28,626 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:34:28,627 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:28,627 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:34:28,627 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:34:28,627 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:34:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:34:28,644 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:34:28,890 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 13:34:28,891 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:34:28,891 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-01-24 13:34:28,891 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:34:28,891 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-24 13:34:28,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-24 13:34:28,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-01-24 13:34:28,892 INFO L87 Difference]: Start difference. First operand 49 states and 48 transitions. Second operand 13 states. [2018-01-24 13:34:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:34:29,372 INFO L93 Difference]: Finished difference Result 49 states and 48 transitions. [2018-01-24 13:34:29,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-24 13:34:29,372 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2018-01-24 13:34:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:34:29,373 INFO L225 Difference]: With dead ends: 49 [2018-01-24 13:34:29,373 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 13:34:29,374 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-01-24 13:34:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 13:34:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 13:34:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 13:34:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 13:34:29,374 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-01-24 13:34:29,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:34:29,375 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 13:34:29,375 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-24 13:34:29,375 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 13:34:29,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 13:34:29,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 13:34:29,676 WARN L146 SmtUtils]: Spent 222ms on a formula simplification. DAG size of input: 66 DAG size of output 47 [2018-01-24 13:34:29,901 WARN L146 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 86 DAG size of output 69 [2018-01-24 13:34:30,112 WARN L146 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 96 DAG size of output 70 [2018-01-24 13:34:30,271 WARN L146 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 99 DAG size of output 73 [2018-01-24 13:34:30,331 INFO L404 ceAbstractionStarter]: At program point f6ENTRY(lines 1434 1436) the Hoare annotation is: true [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point f6FINAL(lines 1434 1436) no Hoare annotation was computed. [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point f6EXIT(lines 1434 1436) no Hoare annotation was computed. [2018-01-24 13:34:30,331 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 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point L1073(lines 1073 1077) no Hoare annotation was computed. [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point L1074'(line 1074) no Hoare annotation was computed. [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point ldv_mallocEXIT(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point ldv_mallocFINAL(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point L1074(line 1074) no Hoare annotation was computed. [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point L1466'(line 1466) no Hoare annotation was computed. [2018-01-24 13:34:30,331 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point L1466(line 1466) no Hoare annotation was computed. [2018-01-24 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,332 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 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,332 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 1478) the Hoare annotation is: true [2018-01-24 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,332 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 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,332 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 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 1476 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,332 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 1476 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 1476 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,333 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 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point L1462''(line 1462) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point L1462'(line 1462) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err3RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point disconnect_6FINAL(lines 1461 1463) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point disconnect_6Err2RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point disconnect_6EXIT(lines 1461 1463) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point L1462(line 1462) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point L1470'(lines 1470 1472) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point entry_pointErr1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,333 INFO L401 ceAbstractionStarter]: For program point entry_pointEXIT(lines 1468 1474) no Hoare annotation was computed. [2018-01-24 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point L1470(lines 1470 1472) no Hoare annotation was computed. [2018-01-24 13:34:30,334 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 13:34:30,334 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 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point L1469(line 1469) no Hoare annotation was computed. [2018-01-24 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point entry_pointErr0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point entry_pointFINAL(lines 1468 1474) no Hoare annotation was computed. [2018-01-24 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point g6EXIT(lines 1438 1440) no Hoare annotation was computed. [2018-01-24 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point g6FINAL(lines 1438 1440) no Hoare annotation was computed. [2018-01-24 13:34:30,334 INFO L404 ceAbstractionStarter]: At program point g6ENTRY(lines 1438 1440) the Hoare annotation is: true [2018-01-24 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point L1453'(line 1453) no Hoare annotation was computed. [2018-01-24 13:34:30,334 INFO L401 ceAbstractionStarter]: For program point probe1_6Err1RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,335 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 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point L1453(line 1453) no Hoare annotation was computed. [2018-01-24 13:34:30,335 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 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point L1451(lines 1451 1452) no Hoare annotation was computed. [2018-01-24 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point L1447'(line 1447) no Hoare annotation was computed. [2018-01-24 13:34:30,335 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 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point L1457(line 1457) no Hoare annotation was computed. [2018-01-24 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point probe1_6Err2RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point L1444'(line 1444) no Hoare annotation was computed. [2018-01-24 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point L1450'(line 1450) no Hoare annotation was computed. [2018-01-24 13:34:30,335 INFO L401 ceAbstractionStarter]: For program point probe1_6Err3RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,336 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 13:34:30,336 INFO L401 ceAbstractionStarter]: For program point probe1_6EXIT(lines 1442 1459) no Hoare annotation was computed. [2018-01-24 13:34:30,336 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 13:34:30,336 INFO L401 ceAbstractionStarter]: For program point L1448(lines 1448 1449) no Hoare annotation was computed. [2018-01-24 13:34:30,336 INFO L401 ceAbstractionStarter]: For program point L1445(lines 1445 1446) no Hoare annotation was computed. [2018-01-24 13:34:30,336 INFO L401 ceAbstractionStarter]: For program point probe1_6Err0RequiresViolation(lines 1 1478) no Hoare annotation was computed. [2018-01-24 13:34:30,336 INFO L401 ceAbstractionStarter]: For program point probe1_6FINAL(lines 1442 1459) no Hoare annotation was computed. [2018-01-24 13:34:30,340 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 13:34:30,343 INFO L168 Benchmark]: Toolchain (without parser) took 8060.46 ms. Allocated memory was 299.4 MB in the beginning and 544.7 MB in the end (delta: 245.4 MB). Free memory was 258.4 MB in the beginning and 351.7 MB in the end (delta: -93.3 MB). Peak memory consumption was 152.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:34:30,344 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 299.4 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:34:30,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.22 ms. Allocated memory is still 299.4 MB. Free memory was 258.4 MB in the beginning and 245.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 5.3 GB. [2018-01-24 13:34:30,344 INFO L168 Benchmark]: Boogie Preprocessor took 37.19 ms. Allocated memory is still 299.4 MB. Free memory was 245.1 MB in the beginning and 243.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:34:30,345 INFO L168 Benchmark]: RCFGBuilder took 296.49 ms. Allocated memory is still 299.4 MB. Free memory was 243.0 MB in the beginning and 223.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 5.3 GB. [2018-01-24 13:34:30,345 INFO L168 Benchmark]: TraceAbstraction took 7501.39 ms. Allocated memory was 299.4 MB in the beginning and 544.7 MB in the end (delta: 245.4 MB). Free memory was 223.4 MB in the beginning and 351.7 MB in the end (delta: -128.2 MB). Peak memory consumption was 117.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:34:30,347 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 299.4 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.22 ms. Allocated memory is still 299.4 MB. Free memory was 258.4 MB in the beginning and 245.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.19 ms. Allocated memory is still 299.4 MB. Free memory was 245.1 MB in the beginning and 243.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 296.49 ms. Allocated memory is still 299.4 MB. Free memory was 243.0 MB in the beginning and 223.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 7501.39 ms. Allocated memory was 299.4 MB in the beginning and 544.7 MB in the end (delta: 245.4 MB). Free memory was 223.4 MB in the beginning and 351.7 MB in the end (delta: -128.2 MB). Peak memory consumption was 117.1 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_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_13-34-30-355.csv Received shutdown request...