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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 12:05:06,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 12:05:06,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 12:05:06,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 12:05:06,973 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 12:05:06,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 12:05:06,974 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 12:05:06,975 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 12:05:06,976 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 12:05:06,977 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 12:05:06,978 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 12:05:06,978 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 12:05:06,979 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 12:05:06,980 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 12:05:06,981 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 12:05:06,982 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 12:05:06,984 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 12:05:06,985 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 12:05:06,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 12:05:06,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 12:05:06,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 12:05:06,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 12:05:06,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 12:05:06,994 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-04 12:05:07,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 12:05:07,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 12:05:07,005 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 12:05:07,006 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 12:05:07,006 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 12:05:07,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 12:05:07,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 12:05:07,006 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 12:05:07,007 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 12:05:07,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 12:05:07,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 12:05:07,007 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 12:05:07,007 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 12:05:07,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 12:05:07,008 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 12:05:07,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 12:05:07,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 12:05:07,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 12:05:07,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 12:05:07,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 12:05:07,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 12:05:07,009 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 12:05:07,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 12:05:07,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-04 12:05:07,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 12:05:07,049 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 12:05:07,055 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 12:05:07,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 12:05:07,057 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 12:05:07,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 12:05:07,181 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 12:05:07,182 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 12:05:07,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 12:05:07,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 12:05:07,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 12:05:07,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db90158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07, skipping insertion in model container [2018-02-04 12:05:07,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,203 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 12:05:07,232 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 12:05:07,313 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 12:05:07,324 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 12:05:07,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07 WrapperNode [2018-02-04 12:05:07,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 12:05:07,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 12:05:07,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 12:05:07,328 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 12:05:07,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... [2018-02-04 12:05:07,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 12:05:07,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 12:05:07,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 12:05:07,350 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 12:05:07,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 12:05:07,386 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 12:05:07,386 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 12:05:07,386 INFO L136 BoogieDeclarations]: Found implementation of procedure sort [2018-02-04 12:05:07,386 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 12:05:07,386 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure sort [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 12:05:07,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 12:05:07,516 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 12:05:07,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 12:05:07 BoogieIcfgContainer [2018-02-04 12:05:07,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 12:05:07,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 12:05:07,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 12:05:07,518 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 12:05:07,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 12:05:07" (1/3) ... [2018-02-04 12:05:07,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ba63f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 12:05:07, skipping insertion in model container [2018-02-04 12:05:07,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:07" (2/3) ... [2018-02-04 12:05:07,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ba63f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 12:05:07, skipping insertion in model container [2018-02-04 12:05:07,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 12:05:07" (3/3) ... [2018-02-04 12:05:07,520 INFO L107 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 12:05:07,525 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 12:05:07,530 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-02-04 12:05:07,563 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 12:05:07,563 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 12:05:07,563 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 12:05:07,563 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 12:05:07,563 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 12:05:07,563 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 12:05:07,564 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 12:05:07,564 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 12:05:07,566 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 12:05:07,574 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-02-04 12:05:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 12:05:07,581 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:07,582 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:07,582 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:07,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1780471319, now seen corresponding path program 1 times [2018-02-04 12:05:07,587 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:07,587 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:07,618 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:07,618 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:07,618 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:07,662 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:07,734 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:07,734 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 12:05:07,736 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 12:05:07,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 12:05:07,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 12:05:07,750 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 6 states. [2018-02-04 12:05:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:07,901 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-02-04 12:05:07,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 12:05:07,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 12:05:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:07,911 INFO L225 Difference]: With dead ends: 42 [2018-02-04 12:05:07,911 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 12:05:07,913 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-04 12:05:07,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 12:05:07,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-04 12:05:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-04 12:05:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-02-04 12:05:07,979 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2018-02-04 12:05:07,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:07,979 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-02-04 12:05:07,979 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 12:05:07,980 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-02-04 12:05:07,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 12:05:07,980 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:07,980 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:07,980 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:07,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1780471318, now seen corresponding path program 1 times [2018-02-04 12:05:07,981 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:07,981 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:07,981 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:07,982 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:07,982 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:07,998 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:08,060 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:08,060 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 12:05:08,062 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 12:05:08,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 12:05:08,062 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-02-04 12:05:08,062 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 6 states. [2018-02-04 12:05:08,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:08,104 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-02-04 12:05:08,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 12:05:08,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 12:05:08,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:08,106 INFO L225 Difference]: With dead ends: 52 [2018-02-04 12:05:08,106 INFO L226 Difference]: Without dead ends: 52 [2018-02-04 12:05:08,107 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-02-04 12:05:08,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-02-04 12:05:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2018-02-04 12:05:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-02-04 12:05:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-02-04 12:05:08,112 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2018-02-04 12:05:08,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:08,112 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-02-04 12:05:08,112 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 12:05:08,112 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-02-04 12:05:08,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 12:05:08,113 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:08,113 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:08,113 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:08,113 INFO L82 PathProgramCache]: Analyzing trace with hash 2121468968, now seen corresponding path program 1 times [2018-02-04 12:05:08,114 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:08,114 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:08,115 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,115 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:08,115 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:08,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:08,223 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:08,223 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 12:05:08,224 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 12:05:08,224 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 12:05:08,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-02-04 12:05:08,224 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 8 states. [2018-02-04 12:05:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:08,332 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-02-04 12:05:08,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 12:05:08,332 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-02-04 12:05:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:08,335 INFO L225 Difference]: With dead ends: 67 [2018-02-04 12:05:08,335 INFO L226 Difference]: Without dead ends: 67 [2018-02-04 12:05:08,336 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-02-04 12:05:08,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-02-04 12:05:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2018-02-04 12:05:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-04 12:05:08,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-02-04 12:05:08,341 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 16 [2018-02-04 12:05:08,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:08,341 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-02-04 12:05:08,342 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 12:05:08,342 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-02-04 12:05:08,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 12:05:08,342 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:08,342 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:08,342 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:08,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1341028550, now seen corresponding path program 1 times [2018-02-04 12:05:08,343 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:08,343 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:08,344 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,344 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:08,344 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:08,359 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:08,440 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:08,440 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 12:05:08,440 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 12:05:08,440 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 12:05:08,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-04 12:05:08,441 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 8 states. [2018-02-04 12:05:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:08,607 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2018-02-04 12:05:08,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 12:05:08,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-02-04 12:05:08,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:08,608 INFO L225 Difference]: With dead ends: 101 [2018-02-04 12:05:08,608 INFO L226 Difference]: Without dead ends: 101 [2018-02-04 12:05:08,608 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-02-04 12:05:08,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-02-04 12:05:08,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87. [2018-02-04 12:05:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-02-04 12:05:08,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2018-02-04 12:05:08,615 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 17 [2018-02-04 12:05:08,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:08,615 INFO L432 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2018-02-04 12:05:08,615 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 12:05:08,616 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2018-02-04 12:05:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 12:05:08,616 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:08,616 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:08,616 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:08,616 INFO L82 PathProgramCache]: Analyzing trace with hash 232335457, now seen corresponding path program 1 times [2018-02-04 12:05:08,617 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:08,617 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:08,618 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,618 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:08,618 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:08,628 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:08,661 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:08,661 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 12:05:08,662 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 12:05:08,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 12:05:08,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 12:05:08,662 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand 4 states. [2018-02-04 12:05:08,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:08,716 INFO L93 Difference]: Finished difference Result 86 states and 101 transitions. [2018-02-04 12:05:08,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 12:05:08,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-02-04 12:05:08,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:08,718 INFO L225 Difference]: With dead ends: 86 [2018-02-04 12:05:08,718 INFO L226 Difference]: Without dead ends: 72 [2018-02-04 12:05:08,718 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 12:05:08,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-02-04 12:05:08,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-02-04 12:05:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-02-04 12:05:08,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2018-02-04 12:05:08,722 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2018-02-04 12:05:08,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:08,722 INFO L432 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2018-02-04 12:05:08,722 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 12:05:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2018-02-04 12:05:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 12:05:08,722 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:08,722 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:08,722 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:08,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1939327170, now seen corresponding path program 1 times [2018-02-04 12:05:08,723 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:08,723 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:08,723 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,723 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:08,723 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:08,733 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:08,763 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:08,763 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 12:05:08,763 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 12:05:08,763 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 12:05:08,763 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 12:05:08,763 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand 5 states. [2018-02-04 12:05:08,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:08,800 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-02-04 12:05:08,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 12:05:08,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 12:05:08,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:08,801 INFO L225 Difference]: With dead ends: 83 [2018-02-04 12:05:08,801 INFO L226 Difference]: Without dead ends: 83 [2018-02-04 12:05:08,802 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-04 12:05:08,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-02-04 12:05:08,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 50. [2018-02-04 12:05:08,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-04 12:05:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-02-04 12:05:08,805 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 22 [2018-02-04 12:05:08,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:08,805 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-02-04 12:05:08,805 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 12:05:08,805 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-02-04 12:05:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 12:05:08,806 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:08,806 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:08,806 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:08,807 INFO L82 PathProgramCache]: Analyzing trace with hash 733703231, now seen corresponding path program 1 times [2018-02-04 12:05:08,807 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:08,807 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:08,808 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,808 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:08,808 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:08,818 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 12:05:08,834 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:08,834 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 12:05:08,834 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 12:05:08,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 12:05:08,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 12:05:08,834 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 3 states. [2018-02-04 12:05:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:08,861 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2018-02-04 12:05:08,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 12:05:08,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-02-04 12:05:08,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:08,861 INFO L225 Difference]: With dead ends: 66 [2018-02-04 12:05:08,861 INFO L226 Difference]: Without dead ends: 66 [2018-02-04 12:05:08,862 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 12:05:08,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-02-04 12:05:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2018-02-04 12:05:08,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-02-04 12:05:08,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2018-02-04 12:05:08,864 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 28 [2018-02-04 12:05:08,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:08,864 INFO L432 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2018-02-04 12:05:08,864 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 12:05:08,864 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2018-02-04 12:05:08,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 12:05:08,864 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:08,864 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:08,864 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0EnsuresViolation, sortErr7RequiresViolation, sortErr11RequiresViolation, sortErr0RequiresViolation, sortErr3RequiresViolation, sortErr9RequiresViolation, sortErr1RequiresViolation, sortErr2RequiresViolation, sortErr8RequiresViolation, sortErr10RequiresViolation, sortErr6RequiresViolation, sortErr4RequiresViolation, sortErr5RequiresViolation]=== [2018-02-04 12:05:08,865 INFO L82 PathProgramCache]: Analyzing trace with hash 149814891, now seen corresponding path program 2 times [2018-02-04 12:05:08,865 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:08,865 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:08,865 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,865 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:08,865 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:08,879 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:08,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:08,940 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 12:05:08,940 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-04 12:05:08,949 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 12:05:08,973 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 12:05:08,973 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 12:05:08,980 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 12:05:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:09,080 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 12:05:09,080 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2018-02-04 12:05:09,080 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 12:05:09,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 12:05:09,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-02-04 12:05:09,080 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 12 states. [2018-02-04 12:05:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:09,318 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-02-04 12:05:09,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 12:05:09,319 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2018-02-04 12:05:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:09,319 INFO L225 Difference]: With dead ends: 59 [2018-02-04 12:05:09,319 INFO L226 Difference]: Without dead ends: 0 [2018-02-04 12:05:09,320 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2018-02-04 12:05:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-04 12:05:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-04 12:05:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-04 12:05:09,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-04 12:05:09,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-02-04 12:05:09,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:09,320 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-04 12:05:09,321 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 12:05:09,321 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-04 12:05:09,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-04 12:05:09,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 12:05:09 BoogieIcfgContainer [2018-02-04 12:05:09,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 12:05:09,325 INFO L168 Benchmark]: Toolchain (without parser) took 2143.79 ms. Allocated memory was 405.3 MB in the beginning and 627.6 MB in the end (delta: 222.3 MB). Free memory was 363.5 MB in the beginning and 525.4 MB in the end (delta: -161.9 MB). Peak memory consumption was 60.4 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:09,326 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 405.3 MB. Free memory is still 368.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 12:05:09,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.97 ms. Allocated memory is still 405.3 MB. Free memory was 362.2 MB in the beginning and 351.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:09,326 INFO L168 Benchmark]: Boogie Preprocessor took 21.19 ms. Allocated memory is still 405.3 MB. Free memory was 351.6 MB in the beginning and 350.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:09,326 INFO L168 Benchmark]: RCFGBuilder took 166.42 ms. Allocated memory is still 405.3 MB. Free memory was 350.3 MB in the beginning and 332.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:09,326 INFO L168 Benchmark]: TraceAbstraction took 1807.89 ms. Allocated memory was 405.3 MB in the beginning and 627.6 MB in the end (delta: 222.3 MB). Free memory was 332.2 MB in the beginning and 525.4 MB in the end (delta: -193.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:09,327 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 405.3 MB. Free memory is still 368.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 145.97 ms. Allocated memory is still 405.3 MB. Free memory was 362.2 MB in the beginning and 351.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.19 ms. Allocated memory is still 405.3 MB. Free memory was 351.6 MB in the beginning and 350.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 166.42 ms. Allocated memory is still 405.3 MB. Free memory was 350.3 MB in the beginning and 332.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1807.89 ms. Allocated memory was 405.3 MB in the beginning and 627.6 MB in the end (delta: 222.3 MB). Free memory was 332.2 MB in the beginning and 525.4 MB in the end (delta: -193.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 549]: 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]: 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]: 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]: 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]: 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 - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 48 locations, 13 error locations. SAFE Result, 1.7s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 224 SDtfs, 532 SDslu, 447 SDs, 0 SdLazy, 488 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 84 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 181 ConstructedInterpolants, 11 QuantifiedInterpolants, 19323 SizeOfPredicates, 1 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 25/33 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_12-05-09-332.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_12-05-09-332.csv Received shutdown request...