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_Array.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 01:41:23,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 01:41:23,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 01:41:23,511 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 01:41:23,512 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 01:41:23,512 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 01:41:23,513 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 01:41:23,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 01:41:23,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 01:41:23,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 01:41:23,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 01:41:23,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 01:41:23,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 01:41:23,520 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 01:41:23,520 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 01:41:23,522 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 01:41:23,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 01:41:23,525 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 01:41:23,526 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 01:41:23,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 01:41:23,529 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 01:41:23,534 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_Array.epf [2018-02-04 01:41:23,544 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 01:41:23,544 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 01:41:23,545 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 01:41:23,545 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 01:41:23,545 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 01:41:23,545 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 01:41:23,545 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 01:41:23,545 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 01:41:23,545 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 01:41:23,545 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 01:41:23,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 01:41:23,546 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 01:41:23,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 01:41:23,547 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 01:41:23,547 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-04 01:41:23,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 01:41:23,584 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 01:41:23,586 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 01:41:23,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 01:41:23,587 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 01:41:23,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 01:41:23,698 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 01:41:23,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 01:41:23,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 01:41:23,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 01:41:23,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 01:41:23,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a17581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23, skipping insertion in model container [2018-02-04 01:41:23,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,716 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 01:41:23,742 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 01:41:23,830 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 01:41:23,841 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 01:41:23,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23 WrapperNode [2018-02-04 01:41:23,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 01:41:23,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 01:41:23,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 01:41:23,846 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 01:41:23,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (1/1) ... [2018-02-04 01:41:23,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 01:41:23,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 01:41:23,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 01:41:23,880 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 01:41:23,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (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 01:41:23,919 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 01:41:23,919 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 01:41:23,919 INFO L136 BoogieDeclarations]: Found implementation of procedure bubbleSort [2018-02-04 01:41:23,920 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 01:41:23,920 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 01:41:23,920 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 01:41:23,920 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 01:41:23,920 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 01:41:23,920 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 01:41:23,920 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 01:41:23,921 INFO L128 BoogieDeclarations]: Found specification of procedure bubbleSort [2018-02-04 01:41:23,921 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 01:41:23,921 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 01:41:23,921 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 01:41:24,076 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 01:41:24,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 01:41:24 BoogieIcfgContainer [2018-02-04 01:41:24,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 01:41:24,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 01:41:24,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 01:41:24,079 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 01:41:24,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 01:41:23" (1/3) ... [2018-02-04 01:41:24,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b865c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 01:41:24, skipping insertion in model container [2018-02-04 01:41:24,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:41:23" (2/3) ... [2018-02-04 01:41:24,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b865c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 01:41:24, skipping insertion in model container [2018-02-04 01:41:24,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 01:41:24" (3/3) ... [2018-02-04 01:41:24,081 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 01:41:24,086 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 01:41:24,090 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-02-04 01:41:24,112 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 01:41:24,112 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 01:41:24,112 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-04 01:41:24,113 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 01:41:24,113 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 01:41:24,113 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 01:41:24,113 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 01:41:24,113 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 01:41:24,113 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 01:41:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-02-04 01:41:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 01:41:24,126 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 01:41:24,127 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 01:41:24,127 INFO L371 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 01:41:24,130 INFO L82 PathProgramCache]: Analyzing trace with hash 334121063, now seen corresponding path program 1 times [2018-02-04 01:41:24,181 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 01:41:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 01:41:24,231 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 01:41:24,332 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 01:41:24,335 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 01:41:24,335 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 01:41:24,336 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 01:41:24,336 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 01:41:24,336 INFO L182 omatonBuilderFactory]: Interpolants [51#true, 52#false, 53#(= 1 (select |#valid| |main_#t~malloc9.base|)), 54#(= 1 (select |#valid| main_~numbers~0.base)), 55#(= 1 (select |#valid| |bubbleSort_#in~numbers.base|)), 56#(= 1 (select |#valid| bubbleSort_~numbers.base))] [2018-02-04 01:41:24,337 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 01:41:24,338 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 01:41:24,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 01:41:24,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 01:41:24,351 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 6 states. [2018-02-04 01:41:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 01:41:24,475 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-02-04 01:41:24,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 01:41:24,549 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 01:41:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 01:41:24,557 INFO L225 Difference]: With dead ends: 42 [2018-02-04 01:41:24,558 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 01:41:24,559 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 01:41:24,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 01:41:24,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-04 01:41:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-04 01:41:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-02-04 01:41:24,581 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2018-02-04 01:41:24,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 01:41:24,581 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-02-04 01:41:24,581 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 01:41:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-02-04 01:41:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 01:41:24,582 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 01:41:24,582 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 01:41:24,582 INFO L371 AbstractCegarLoop]: === Iteration 2 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 01:41:24,582 INFO L82 PathProgramCache]: Analyzing trace with hash 334121064, now seen corresponding path program 1 times [2018-02-04 01:41:24,583 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 01:41:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 01:41:24,600 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 01:41:24,690 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 01:41:24,690 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 01:41:24,690 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 01:41:24,690 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 01:41:24,691 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 01:41:24,691 INFO L182 omatonBuilderFactory]: Interpolants [144#(and (= (* 4 main_~array_size~0) (select |#length| |main_#t~malloc9.base|)) (= 0 |main_#t~malloc9.offset|)), 145#(and (= 0 main_~numbers~0.offset) (= (* 4 main_~array_size~0) (select |#length| main_~numbers~0.base))), 146#(and (= 0 |bubbleSort_#in~numbers.offset|) (<= (* 4 |bubbleSort_#in~array_size|) (select |#length| |bubbleSort_#in~numbers.base|))), 147#(and (= bubbleSort_~numbers.offset 0) (<= (+ (* 4 bubbleSort_~i~0) 4) (select |#length| bubbleSort_~numbers.base))), 148#(and (= bubbleSort_~numbers.offset 0) (= bubbleSort_~j~0 1) (<= (+ (* 4 bubbleSort_~i~0) 4) (select |#length| bubbleSort_~numbers.base))), 149#(and (= bubbleSort_~numbers.offset 0) (<= (+ (* 4 bubbleSort_~j~0) 4) (select |#length| bubbleSort_~numbers.base)) (= bubbleSort_~j~0 1)), 142#true, 143#false] [2018-02-04 01:41:24,691 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 01:41:24,692 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 01:41:24,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 01:41:24,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-04 01:41:24,692 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 8 states. [2018-02-04 01:41:24,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 01:41:24,895 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2018-02-04 01:41:24,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 01:41:24,896 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-02-04 01:41:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 01:41:24,899 INFO L225 Difference]: With dead ends: 56 [2018-02-04 01:41:24,899 INFO L226 Difference]: Without dead ends: 56 [2018-02-04 01:41:24,900 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-02-04 01:41:24,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-04 01:41:24,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2018-02-04 01:41:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-04 01:41:24,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-02-04 01:41:24,906 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 16 [2018-02-04 01:41:24,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 01:41:24,906 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-02-04 01:41:24,906 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 01:41:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-02-04 01:41:24,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 01:41:24,907 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 01:41:24,907 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 01:41:24,907 INFO L371 AbstractCegarLoop]: === Iteration 3 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 01:41:24,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1789385763, now seen corresponding path program 1 times [2018-02-04 01:41:24,908 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 01:41:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 01:41:24,918 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 01:41:24,945 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 01:41:24,945 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 01:41:24,945 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 01:41:24,945 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 01:41:24,946 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 01:41:24,946 INFO L182 omatonBuilderFactory]: Interpolants [264#true, 265#false, 266#(<= 1 main_~array_size~0), 267#(<= |bubbleSort_#in~array_size| (+ bubbleSort_~i~0 1)), 268#(<= |bubbleSort_#in~array_size| 0)] [2018-02-04 01:41:24,946 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 01:41:24,946 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 01:41:24,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 01:41:24,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 01:41:24,947 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 5 states. [2018-02-04 01:41:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 01:41:24,969 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2018-02-04 01:41:24,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 01:41:24,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-04 01:41:24,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 01:41:24,970 INFO L225 Difference]: With dead ends: 84 [2018-02-04 01:41:24,970 INFO L226 Difference]: Without dead ends: 82 [2018-02-04 01:41:24,971 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 01:41:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-02-04 01:41:24,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 52. [2018-02-04 01:41:24,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-04 01:41:24,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-02-04 01:41:24,974 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 19 [2018-02-04 01:41:24,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 01:41:24,975 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-02-04 01:41:24,975 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 01:41:24,975 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-02-04 01:41:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 01:41:24,975 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 01:41:24,975 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 01:41:24,975 INFO L371 AbstractCegarLoop]: === Iteration 4 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 01:41:24,976 INFO L82 PathProgramCache]: Analyzing trace with hash -120775682, now seen corresponding path program 1 times [2018-02-04 01:41:24,976 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 01:41:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 01:41:24,984 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 01:41:25,021 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 01:41:25,021 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 01:41:25,021 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 01:41:25,021 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 01:41:25,021 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 01:41:25,021 INFO L182 omatonBuilderFactory]: Interpolants [407#true, 408#false, 409#(<= 4 (+ (* 4 bubbleSort_~j~0) bubbleSort_~numbers.offset)), 410#(and (<= (+ (* 4 bubbleSort_~j~0) bubbleSort_~numbers.offset 4) (select |#length| bubbleSort_~numbers.base)) (<= 4 (+ (* 4 bubbleSort_~j~0) bubbleSort_~numbers.offset))), 411#(and (<= 8 (+ (* 4 bubbleSort_~j~0) bubbleSort_~numbers.offset)) (<= (+ (* 4 bubbleSort_~j~0) bubbleSort_~numbers.offset) (select |#length| bubbleSort_~numbers.base)))] [2018-02-04 01:41:25,021 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 01:41:25,021 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 01:41:25,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 01:41:25,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 01:41:25,022 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-02-04 01:41:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 01:41:25,072 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-02-04 01:41:25,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 01:41:25,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 01:41:25,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 01:41:25,073 INFO L225 Difference]: With dead ends: 53 [2018-02-04 01:41:25,073 INFO L226 Difference]: Without dead ends: 53 [2018-02-04 01:41:25,073 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 01:41:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-02-04 01:41:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2018-02-04 01:41:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-04 01:41:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-02-04 01:41:25,075 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 22 [2018-02-04 01:41:25,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 01:41:25,075 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-02-04 01:41:25,075 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 01:41:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-02-04 01:41:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 01:41:25,076 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 01:41:25,076 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 01:41:25,076 INFO L371 AbstractCegarLoop]: === Iteration 5 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 01:41:25,076 INFO L82 PathProgramCache]: Analyzing trace with hash 550921116, now seen corresponding path program 1 times [2018-02-04 01:41:25,076 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 01:41:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 01:41:25,084 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 01:41:25,144 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 01:41:25,144 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 01:41:25,144 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-02-04 01:41:25,144 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 01:41:25,145 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 01:41:25,145 INFO L182 omatonBuilderFactory]: Interpolants [512#(and (= bubbleSort_~numbers.offset 0) (<= (+ (* 4 bubbleSort_~i~0) 4) (select |#length| bubbleSort_~numbers.base))), 513#(and (= bubbleSort_~numbers.offset 0) (<= (+ (* 4 bubbleSort_~j~0) 4) (select |#length| bubbleSort_~numbers.base))), 514#(and (= bubbleSort_~numbers.offset 0) (<= (+ (* 4 bubbleSort_~j~0) 4) (select |#length| bubbleSort_~numbers.base)) (<= 4 (+ (* 4 bubbleSort_~j~0) bubbleSort_~numbers.offset))), 507#true, 508#false, 509#(and (= (* 4 main_~array_size~0) (select |#length| |main_#t~malloc9.base|)) (= 0 |main_#t~malloc9.offset|)), 510#(and (= 0 main_~numbers~0.offset) (= (* 4 main_~array_size~0) (select |#length| main_~numbers~0.base))), 511#(and (= 0 |bubbleSort_#in~numbers.offset|) (<= (* 4 |bubbleSort_#in~array_size|) (select |#length| |bubbleSort_#in~numbers.base|)))] [2018-02-04 01:41:25,145 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 01:41:25,145 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 01:41:25,145 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 01:41:25,145 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-04 01:41:25,145 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 8 states. [2018-02-04 01:41:25,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 01:41:25,238 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2018-02-04 01:41:25,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 01:41:25,238 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-02-04 01:41:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 01:41:25,239 INFO L225 Difference]: With dead ends: 39 [2018-02-04 01:41:25,239 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 01:41:25,239 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-02-04 01:41:25,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 01:41:25,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2018-02-04 01:41:25,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-04 01:41:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-02-04 01:41:25,241 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 23 [2018-02-04 01:41:25,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 01:41:25,241 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-02-04 01:41:25,241 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 01:41:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-02-04 01:41:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 01:41:25,242 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 01:41:25,242 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 01:41:25,242 INFO L371 AbstractCegarLoop]: === Iteration 6 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 01:41:25,242 INFO L82 PathProgramCache]: Analyzing trace with hash -996967546, now seen corresponding path program 1 times [2018-02-04 01:41:25,243 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 01:41:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 01:41:25,257 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 01:41:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 01:41:25,294 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 01:41:25,295 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 01:41:25,295 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 01:41:25,295 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 01:41:25,295 INFO L182 omatonBuilderFactory]: Interpolants [597#true, 598#false, 599#(= |#valid| |old(#valid)|), 600#(= (store |#valid| |main_#t~malloc9.base| 0) |old(#valid)|)] [2018-02-04 01:41:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 01:41:25,295 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 01:41:25,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 01:41:25,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 01:41:25,296 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 4 states. [2018-02-04 01:41:25,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 01:41:25,335 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-02-04 01:41:25,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 01:41:25,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-02-04 01:41:25,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 01:41:25,336 INFO L225 Difference]: With dead ends: 34 [2018-02-04 01:41:25,336 INFO L226 Difference]: Without dead ends: 0 [2018-02-04 01:41:25,336 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 01:41:25,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-04 01:41:25,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-04 01:41:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-04 01:41:25,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-04 01:41:25,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-02-04 01:41:25,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 01:41:25,336 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-04 01:41:25,337 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 01:41:25,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-04 01:41:25,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-04 01:41:25,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 01:41:25 BoogieIcfgContainer [2018-02-04 01:41:25,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 01:41:25,340 INFO L168 Benchmark]: Toolchain (without parser) took 1642.03 ms. Allocated memory was 404.2 MB in the beginning and 611.3 MB in the end (delta: 207.1 MB). Free memory was 362.2 MB in the beginning and 446.7 MB in the end (delta: -84.5 MB). Peak memory consumption was 122.6 MB. Max. memory is 5.3 GB. [2018-02-04 01:41:25,341 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 404.2 MB. Free memory is still 367.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 01:41:25,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.49 ms. Allocated memory is still 404.2 MB. Free memory was 360.9 MB in the beginning and 350.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 01:41:25,341 INFO L168 Benchmark]: Boogie Preprocessor took 33.10 ms. Allocated memory is still 404.2 MB. Free memory was 350.3 MB in the beginning and 349.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 01:41:25,342 INFO L168 Benchmark]: RCFGBuilder took 196.78 ms. Allocated memory is still 404.2 MB. Free memory was 349.0 MB in the beginning and 330.4 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-02-04 01:41:25,342 INFO L168 Benchmark]: TraceAbstraction took 1263.29 ms. Allocated memory was 404.2 MB in the beginning and 611.3 MB in the end (delta: 207.1 MB). Free memory was 330.4 MB in the beginning and 446.7 MB in the end (delta: -116.4 MB). Peak memory consumption was 90.7 MB. Max. memory is 5.3 GB. [2018-02-04 01:41:25,342 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 404.2 MB. Free memory is still 367.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 146.49 ms. Allocated memory is still 404.2 MB. Free memory was 360.9 MB in the beginning and 350.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.10 ms. Allocated memory is still 404.2 MB. Free memory was 350.3 MB in the beginning and 349.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 196.78 ms. Allocated memory is still 404.2 MB. Free memory was 349.0 MB in the beginning and 330.4 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1263.29 ms. Allocated memory was 404.2 MB in the beginning and 611.3 MB in the end (delta: 207.1 MB). Free memory was 330.4 MB in the beginning and 446.7 MB in the end (delta: -116.4 MB). Peak memory consumption was 90.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 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, 1.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 172 SDtfs, 298 SDslu, 341 SDs, 0 SdLazy, 375 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 7/9 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, 0.3s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 11037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 7/9 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_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_01-41-25-347.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_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_01-41-25-347.csv Received shutdown request...