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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:03:06,888 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:03:06,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:03:06,900 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:03:06,900 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:03:06,901 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:03:06,901 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:03:06,902 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:03:06,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:03:06,904 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:03:06,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:03:06,905 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:03:06,906 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:03:06,907 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:03:06,908 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:03:06,909 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:03:06,911 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:03:06,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:03:06,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:03:06,914 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:03:06,915 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:03:06,916 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:03:06,916 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:03:06,917 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:03:06,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:03:06,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:03:06,918 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:03:06,919 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:03:06,919 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:03:06,919 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:03:06,919 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:03:06,920 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:03:06,928 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:03:06,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:03:06,929 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:03:06,929 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:03:06,930 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:03:06,930 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:03:06,930 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:03:06,930 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:03:06,930 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:03:06,930 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:03:06,931 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:03:06,931 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:03:06,931 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:03:06,931 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:03:06,931 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:03:06,931 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:03:06,931 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:03:06,932 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:03:06,932 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:03:06,932 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:03:06,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:03:06,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:03:06,932 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:03:06,933 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:03:06,933 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:03:06,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:03:06,969 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:03:06,972 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:03:06,973 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:03:06,974 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:03:06,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:07,109 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:03:07,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:03:07,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:07,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:03:07,117 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:03:07,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7deabca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07, skipping insertion in model container [2018-02-04 04:03:07,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,133 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:07,160 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:07,252 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:07,263 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:07,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07 WrapperNode [2018-02-04 04:03:07,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:07,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:03:07,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:03:07,269 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:03:07,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (1/1) ... [2018-02-04 04:03:07,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:03:07,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:03:07,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:03:07,298 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:03:07,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (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 04:03:07,333 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:03:07,333 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:03:07,333 INFO L136 BoogieDeclarations]: Found implementation of procedure bubbleSort [2018-02-04 04:03:07,333 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:03:07,333 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:03:07,333 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:03:07,333 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:03:07,334 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:03:07,334 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:03:07,334 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:03:07,334 INFO L128 BoogieDeclarations]: Found specification of procedure bubbleSort [2018-02-04 04:03:07,334 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:03:07,334 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:03:07,334 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:03:07,480 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:03:07,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:07 BoogieIcfgContainer [2018-02-04 04:03:07,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:03:07,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:03:07,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:03:07,483 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:03:07,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:03:07" (1/3) ... [2018-02-04 04:03:07,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cb244b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:07, skipping insertion in model container [2018-02-04 04:03:07,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:07" (2/3) ... [2018-02-04 04:03:07,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cb244b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:07, skipping insertion in model container [2018-02-04 04:03:07,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:07" (3/3) ... [2018-02-04 04:03:07,486 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:07,492 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:03:07,496 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-02-04 04:03:07,530 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:03:07,530 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:03:07,530 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:03:07,530 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:03:07,531 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:03:07,531 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:03:07,531 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:03:07,531 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:03:07,531 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:03:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-02-04 04:03:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:03:07,550 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:07,551 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:07,551 INFO L371 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:07,556 INFO L82 PathProgramCache]: Analyzing trace with hash 334121063, now seen corresponding path program 1 times [2018-02-04 04:03:07,558 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:07,558 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:07,591 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:07,591 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:07,591 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:07,638 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:07,733 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 04:03:07,736 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:07,736 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:03:07,738 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:03:07,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:03:07,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:03:07,749 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 6 states. [2018-02-04 04:03:07,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:07,886 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-02-04 04:03:07,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:03:07,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 04:03:07,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:07,948 INFO L225 Difference]: With dead ends: 42 [2018-02-04 04:03:07,948 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 04:03:07,950 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 04:03:07,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 04:03:07,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-04 04:03:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-04 04:03:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-02-04 04:03:07,978 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2018-02-04 04:03:07,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:07,979 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-02-04 04:03:07,979 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:03:07,979 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-02-04 04:03:07,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:03:07,979 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:07,980 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:07,980 INFO L371 AbstractCegarLoop]: === Iteration 2 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:07,980 INFO L82 PathProgramCache]: Analyzing trace with hash 334121064, now seen corresponding path program 1 times [2018-02-04 04:03:07,980 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:07,980 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:07,981 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:07,981 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:07,982 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:07,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:08,102 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 04:03:08,102 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:08,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:03:08,104 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:03:08,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:03:08,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:03:08,105 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 8 states. [2018-02-04 04:03:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:08,303 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2018-02-04 04:03:08,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:03:08,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-02-04 04:03:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:08,307 INFO L225 Difference]: With dead ends: 56 [2018-02-04 04:03:08,307 INFO L226 Difference]: Without dead ends: 56 [2018-02-04 04:03:08,308 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:03:08,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-04 04:03:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2018-02-04 04:03:08,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-04 04:03:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-02-04 04:03:08,320 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 16 [2018-02-04 04:03:08,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:08,321 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-02-04 04:03:08,321 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:03:08,321 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-02-04 04:03:08,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:03:08,322 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:08,322 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 04:03:08,322 INFO L371 AbstractCegarLoop]: === Iteration 3 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:08,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1789385763, now seen corresponding path program 1 times [2018-02-04 04:03:08,322 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:08,324 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:08,326 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:08,326 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:08,326 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:08,344 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:08,373 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 04:03:08,373 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:08,373 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:03:08,373 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:08,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:08,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:08,374 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 5 states. [2018-02-04 04:03:08,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:08,401 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2018-02-04 04:03:08,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:03:08,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-04 04:03:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:08,405 INFO L225 Difference]: With dead ends: 84 [2018-02-04 04:03:08,405 INFO L226 Difference]: Without dead ends: 82 [2018-02-04 04:03:08,406 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:03:08,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-02-04 04:03:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 52. [2018-02-04 04:03:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-04 04:03:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-02-04 04:03:08,414 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 19 [2018-02-04 04:03:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:08,415 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-02-04 04:03:08,415 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-02-04 04:03:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:03:08,416 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:08,416 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 04:03:08,416 INFO L371 AbstractCegarLoop]: === Iteration 4 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:08,416 INFO L82 PathProgramCache]: Analyzing trace with hash -120775682, now seen corresponding path program 1 times [2018-02-04 04:03:08,416 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:08,416 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:08,417 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:08,417 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:08,417 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:08,435 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:08,476 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 04:03:08,476 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:08,477 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:08,477 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:08,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:08,477 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:08,478 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-02-04 04:03:08,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:08,521 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-02-04 04:03:08,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:03:08,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 04:03:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:08,522 INFO L225 Difference]: With dead ends: 53 [2018-02-04 04:03:08,522 INFO L226 Difference]: Without dead ends: 53 [2018-02-04 04:03:08,522 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 04:03:08,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-02-04 04:03:08,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2018-02-04 04:03:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-04 04:03:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-02-04 04:03:08,524 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 22 [2018-02-04 04:03:08,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:08,525 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-02-04 04:03:08,525 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:08,525 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-02-04 04:03:08,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 04:03:08,525 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:08,525 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:08,525 INFO L371 AbstractCegarLoop]: === Iteration 5 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:08,525 INFO L82 PathProgramCache]: Analyzing trace with hash 550921116, now seen corresponding path program 1 times [2018-02-04 04:03:08,525 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:08,525 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:08,526 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:08,526 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:08,526 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:08,537 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:08,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:03:08,628 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:03:08,628 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:03:08,629 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:08,655 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:03:08,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 04:03:08,688 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:03:08,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:03:08,691 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-02-04 04:03:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:03:08,795 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 04:03:08,795 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-02-04 04:03:08,796 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 04:03:08,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 04:03:08,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-02-04 04:03:08,796 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 14 states. [2018-02-04 04:03:09,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:09,065 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2018-02-04 04:03:09,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:03:09,066 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-02-04 04:03:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:09,066 INFO L225 Difference]: With dead ends: 39 [2018-02-04 04:03:09,066 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 04:03:09,067 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-02-04 04:03:09,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 04:03:09,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2018-02-04 04:03:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-04 04:03:09,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-02-04 04:03:09,069 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 23 [2018-02-04 04:03:09,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:09,069 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-02-04 04:03:09,069 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 04:03:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-02-04 04:03:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 04:03:09,069 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:09,069 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:09,069 INFO L371 AbstractCegarLoop]: === Iteration 6 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash -996967546, now seen corresponding path program 1 times [2018-02-04 04:03:09,070 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:09,070 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:09,071 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:09,071 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:09,071 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:09,081 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:09,084 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) 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) [2018-02-04 04:03:09,086 INFO L168 Benchmark]: Toolchain (without parser) took 1976.92 ms. Allocated memory was 399.0 MB in the beginning and 621.8 MB in the end (delta: 222.8 MB). Free memory was 355.7 MB in the beginning and 588.1 MB in the end (delta: -232.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:09,087 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 399.0 MB. Free memory is still 361.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:09,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.12 ms. Allocated memory is still 399.0 MB. Free memory was 355.7 MB in the beginning and 345.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:09,087 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 399.0 MB. Free memory was 345.1 MB in the beginning and 342.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:09,087 INFO L168 Benchmark]: RCFGBuilder took 183.12 ms. Allocated memory is still 399.0 MB. Free memory was 342.5 MB in the beginning and 325.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:09,088 INFO L168 Benchmark]: TraceAbstraction took 1604.54 ms. Allocated memory was 399.0 MB in the beginning and 621.8 MB in the end (delta: 222.8 MB). Free memory was 322.6 MB in the beginning and 588.1 MB in the end (delta: -265.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:09,089 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 399.0 MB. Free memory is still 361.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 158.12 ms. Allocated memory is still 399.0 MB. Free memory was 355.7 MB in the beginning and 345.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.66 ms. Allocated memory is still 399.0 MB. Free memory was 345.1 MB in the beginning and 342.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 183.12 ms. Allocated memory is still 399.0 MB. Free memory was 342.5 MB in the beginning and 325.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1604.54 ms. Allocated memory was 399.0 MB in the beginning and 621.8 MB in the end (delta: 222.8 MB). Free memory was 322.6 MB in the beginning and 588.1 MB in the end (delta: -265.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-03-09-093.csv Received shutdown request...