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/bubblesort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 18:20:59,282 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 18:20:59,283 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 18:20:59,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 18:20:59,294 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 18:20:59,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 18:20:59,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 18:20:59,297 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 18:20:59,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 18:20:59,299 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 18:20:59,300 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 18:20:59,300 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 18:20:59,301 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 18:20:59,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 18:20:59,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 18:20:59,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 18:20:59,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 18:20:59,307 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 18:20:59,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 18:20:59,309 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 18:20:59,311 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 18:20:59,311 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 18:20:59,311 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 18:20:59,312 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 18:20:59,313 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 18:20:59,314 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 18:20:59,314 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 18:20:59,314 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 18:20:59,315 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 18:20:59,315 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 18:20:59,315 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 18:20:59,315 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 [2018-02-02 18:20:59,325 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 18:20:59,325 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 18:20:59,326 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 18:20:59,326 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 18:20:59,327 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 18:20:59,327 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 18:20:59,327 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 18:20:59,327 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 18:20:59,327 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 18:20:59,327 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 18:20:59,328 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 18:20:59,328 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 18:20:59,328 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 18:20:59,328 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 18:20:59,328 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 18:20:59,328 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 18:20:59,328 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 18:20:59,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 18:20:59,329 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 18:20:59,329 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 18:20:59,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 18:20:59,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 18:20:59,329 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 18:20:59,329 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 18:20:59,330 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 18:20:59,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 18:20:59,369 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 18:20:59,372 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 18:20:59,374 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 18:20:59,374 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 18:20:59,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-02 18:20:59,499 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 18:20:59,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 18:20:59,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 18:20:59,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 18:20:59,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 18:20:59,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2a3f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59, skipping insertion in model container [2018-02-02 18:20:59,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,522 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:20:59,549 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:20:59,635 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:20:59,647 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:20:59,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59 WrapperNode [2018-02-02 18:20:59,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 18:20:59,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 18:20:59,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 18:20:59,652 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 18:20:59,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (1/1) ... [2018-02-02 18:20:59,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 18:20:59,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 18:20:59,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 18:20:59,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 18:20:59,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (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 [2018-02-02 18:20:59,708 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 18:20:59,708 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 18:20:59,708 INFO L136 BoogieDeclarations]: Found implementation of procedure bubbleSort [2018-02-02 18:20:59,708 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 18:20:59,708 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure bubbleSort [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 18:20:59,709 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 18:20:59,873 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 18:20:59,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:20:59 BoogieIcfgContainer [2018-02-02 18:20:59,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 18:20:59,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 18:20:59,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 18:20:59,876 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 18:20:59,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 06:20:59" (1/3) ... [2018-02-02 18:20:59,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec5b41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:20:59, skipping insertion in model container [2018-02-02 18:20:59,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:59" (2/3) ... [2018-02-02 18:20:59,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec5b41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:20:59, skipping insertion in model container [2018-02-02 18:20:59,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:20:59" (3/3) ... [2018-02-02 18:20:59,878 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-02 18:20:59,884 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 18:20:59,889 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-02-02 18:20:59,920 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 18:20:59,920 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 18:20:59,920 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 18:20:59,920 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 18:20:59,920 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 18:20:59,921 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 18:20:59,921 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 18:20:59,921 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 18:20:59,922 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 18:20:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-02-02 18:20:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-02 18:20:59,941 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:20:59,942 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:20:59,942 INFO L371 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:20:59,946 INFO L82 PathProgramCache]: Analyzing trace with hash 334121063, now seen corresponding path program 1 times [2018-02-02 18:20:59,948 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:20:59,948 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:20:59,991 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:59,991 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:59,992 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:21:00,043 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:21:00,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:21:00,144 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:21:00,144 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 18:21:00,145 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 18:21:00,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 18:21:00,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 18:21:00,158 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 6 states. [2018-02-02 18:21:00,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:21:00,348 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-02-02 18:21:00,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 18:21:00,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-02 18:21:00,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:21:00,357 INFO L225 Difference]: With dead ends: 42 [2018-02-02 18:21:00,358 INFO L226 Difference]: Without dead ends: 39 [2018-02-02 18:21:00,359 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:21:00,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-02 18:21:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-02 18:21:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-02 18:21:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-02-02 18:21:00,385 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2018-02-02 18:21:00,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:21:00,385 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-02-02 18:21:00,385 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 18:21:00,385 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-02-02 18:21:00,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-02 18:21:00,386 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:21:00,386 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:21:00,386 INFO L371 AbstractCegarLoop]: === Iteration 2 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:21:00,386 INFO L82 PathProgramCache]: Analyzing trace with hash 334121064, now seen corresponding path program 1 times [2018-02-02 18:21:00,386 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:21:00,386 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:21:00,387 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,387 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:21:00,387 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:21:00,402 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:21:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:21:00,508 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:21:00,508 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 18:21:00,510 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 18:21:00,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 18:21:00,510 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:21:00,511 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 8 states. [2018-02-02 18:21:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:21:00,710 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2018-02-02 18:21:00,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 18:21:00,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-02-02 18:21:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:21:00,714 INFO L225 Difference]: With dead ends: 56 [2018-02-02 18:21:00,714 INFO L226 Difference]: Without dead ends: 56 [2018-02-02 18:21:00,715 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 [2018-02-02 18:21:00,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-02 18:21:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2018-02-02 18:21:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-02 18:21:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-02-02 18:21:00,721 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 16 [2018-02-02 18:21:00,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:21:00,721 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-02-02 18:21:00,721 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 18:21:00,721 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-02-02 18:21:00,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 18:21:00,722 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:21:00,722 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:21:00,722 INFO L371 AbstractCegarLoop]: === Iteration 3 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:21:00,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1789385763, now seen corresponding path program 1 times [2018-02-02 18:21:00,723 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:21:00,723 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:21:00,724 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,724 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:21:00,724 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:21:00,734 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:21:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:21:00,758 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:21:00,758 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 18:21:00,758 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 18:21:00,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 18:21:00,759 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:21:00,759 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 5 states. [2018-02-02 18:21:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:21:00,780 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2018-02-02 18:21:00,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 18:21:00,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 18:21:00,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:21:00,782 INFO L225 Difference]: With dead ends: 84 [2018-02-02 18:21:00,783 INFO L226 Difference]: Without dead ends: 82 [2018-02-02 18:21:00,783 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 [2018-02-02 18:21:00,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-02-02 18:21:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 52. [2018-02-02 18:21:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-02 18:21:00,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-02-02 18:21:00,787 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 19 [2018-02-02 18:21:00,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:21:00,787 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-02-02 18:21:00,787 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 18:21:00,788 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-02-02 18:21:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 18:21:00,788 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:21:00,788 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] [2018-02-02 18:21:00,788 INFO L371 AbstractCegarLoop]: === Iteration 4 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:21:00,788 INFO L82 PathProgramCache]: Analyzing trace with hash -120775682, now seen corresponding path program 1 times [2018-02-02 18:21:00,788 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:21:00,788 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:21:00,789 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,789 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:21:00,789 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:21:00,801 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:21:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:21:00,840 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:21:00,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 18:21:00,840 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 18:21:00,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 18:21:00,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:21:00,841 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-02-02 18:21:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:21:00,881 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-02-02 18:21:00,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 18:21:00,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-02 18:21:00,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:21:00,882 INFO L225 Difference]: With dead ends: 53 [2018-02-02 18:21:00,882 INFO L226 Difference]: Without dead ends: 53 [2018-02-02 18:21:00,883 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 [2018-02-02 18:21:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-02-02 18:21:00,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2018-02-02 18:21:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-02 18:21:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-02-02 18:21:00,885 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 22 [2018-02-02 18:21:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:21:00,885 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-02-02 18:21:00,885 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 18:21:00,885 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-02-02 18:21:00,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-02 18:21:00,885 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:21:00,886 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] [2018-02-02 18:21:00,886 INFO L371 AbstractCegarLoop]: === Iteration 5 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:21:00,886 INFO L82 PathProgramCache]: Analyzing trace with hash 550921116, now seen corresponding path program 1 times [2018-02-02 18:21:00,886 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:21:00,886 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:21:00,886 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,887 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:21:00,887 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:21:00,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:21:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 18:21:00,991 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 18:21:00,991 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 [2018-02-02 18:21:01,000 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:21:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:21:01,029 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 18:21:01,059 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 [2018-02-02 18:21:01,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 18:21:01,063 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-02 18:21:01,064 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-02-02 18:21:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 18:21:01,207 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 18:21:01,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-02-02 18:21:01,208 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-02 18:21:01,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-02 18:21:01,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-02-02 18:21:01,209 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 14 states. [2018-02-02 18:21:01,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:21:01,448 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2018-02-02 18:21:01,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 18:21:01,448 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-02-02 18:21:01,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:21:01,448 INFO L225 Difference]: With dead ends: 39 [2018-02-02 18:21:01,449 INFO L226 Difference]: Without dead ends: 39 [2018-02-02 18:21:01,449 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-02-02 18:21:01,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-02 18:21:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2018-02-02 18:21:01,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-02 18:21:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-02-02 18:21:01,451 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 23 [2018-02-02 18:21:01,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:21:01,451 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-02-02 18:21:01,451 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-02 18:21:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-02-02 18:21:01,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 18:21:01,452 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:21:01,452 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] [2018-02-02 18:21:01,452 INFO L371 AbstractCegarLoop]: === Iteration 6 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:21:01,452 INFO L82 PathProgramCache]: Analyzing trace with hash -996967546, now seen corresponding path program 1 times [2018-02-02 18:21:01,452 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:21:01,452 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:21:01,453 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:01,453 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:21:01,453 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:21:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:21:01,461 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:21:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 18:21:01,495 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:21:01,495 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 18:21:01,495 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 18:21:01,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 18:21:01,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 18:21:01,496 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 4 states. [2018-02-02 18:21:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:21:01,530 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-02-02 18:21:01,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 18:21:01,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-02-02 18:21:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:21:01,530 INFO L225 Difference]: With dead ends: 34 [2018-02-02 18:21:01,530 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 18:21:01,530 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 [2018-02-02 18:21:01,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 18:21:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 18:21:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 18:21:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 18:21:01,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-02-02 18:21:01,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:21:01,531 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 18:21:01,531 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 18:21:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 18:21:01,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 18:21:01,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 06:21:01 BoogieIcfgContainer [2018-02-02 18:21:01,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 18:21:01,535 INFO L168 Benchmark]: Toolchain (without parser) took 2035.11 ms. Allocated memory was 407.4 MB in the beginning and 632.3 MB in the end (delta: 224.9 MB). Free memory was 365.4 MB in the beginning and 563.4 MB in the end (delta: -198.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 5.3 GB. [2018-02-02 18:21:01,535 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 407.4 MB. Free memory is still 370.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 18:21:01,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.02 ms. Allocated memory is still 407.4 MB. Free memory was 364.1 MB in the beginning and 353.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 18:21:01,536 INFO L168 Benchmark]: Boogie Preprocessor took 23.35 ms. Allocated memory is still 407.4 MB. Free memory was 353.5 MB in the beginning and 352.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 18:21:01,536 INFO L168 Benchmark]: RCFGBuilder took 198.01 ms. Allocated memory is still 407.4 MB. Free memory was 352.2 MB in the beginning and 333.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. [2018-02-02 18:21:01,536 INFO L168 Benchmark]: TraceAbstraction took 1660.78 ms. Allocated memory was 407.4 MB in the beginning and 632.3 MB in the end (delta: 224.9 MB). Free memory was 333.6 MB in the beginning and 563.4 MB in the end (delta: -229.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 18:21:01,537 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 407.4 MB. Free memory is still 370.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 150.02 ms. Allocated memory is still 407.4 MB. Free memory was 364.1 MB in the beginning and 353.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.35 ms. Allocated memory is still 407.4 MB. Free memory was 353.5 MB in the beginning and 352.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 198.01 ms. Allocated memory is still 407.4 MB. Free memory was 352.2 MB in the beginning and 333.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1660.78 ms. Allocated memory was 407.4 MB in the beginning and 632.3 MB in the end (delta: 224.9 MB). Free memory was 333.6 MB in the beginning and 563.4 MB in the end (delta: -229.7 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 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: 553]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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, 1.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 172 SDtfs, 348 SDslu, 389 SDs, 0 SdLazy, 414 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=3, 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, 6 MinimizatonAttempts, 53 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 136 ConstructedInterpolants, 13 QuantifiedInterpolants, 16933 SizeOfPredicates, 7 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 9/13 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/bubblesort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_18-21-01-541.csv 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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_18-21-01-541.csv Received shutdown request...