java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 17:17:06,249 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 17:17:06,251 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 17:17:06,260 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 17:17:06,260 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 17:17:06,261 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 17:17:06,262 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 17:17:06,264 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 17:17:06,265 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 17:17:06,266 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 17:17:06,266 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 17:17:06,267 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 17:17:06,267 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 17:17:06,268 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 17:17:06,269 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 17:17:06,271 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 17:17:06,272 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 17:17:06,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 17:17:06,275 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 17:17:06,276 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 17:17:06,277 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 17:17:06,281 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 17:17:06,282 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 17:17:06,282 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 17:17:06,291 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 17:17:06,291 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 17:17:06,292 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 17:17:06,292 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 17:17:06,293 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 17:17:06,293 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 17:17:06,293 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 17:17:06,293 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 17:17:06,293 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 17:17:06,293 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 17:17:06,293 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 17:17:06,294 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 17:17:06,294 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 17:17:06,294 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 17:17:06,294 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 17:17:06,294 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 17:17:06,294 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 17:17:06,295 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 17:17:06,295 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 17:17:06,295 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 17:17:06,295 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 17:17:06,295 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 17:17:06,295 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 17:17:06,295 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 17:17:06,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 17:17:06,334 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 17:17:06,338 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 17:17:06,339 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 17:17:06,340 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 17:17:06,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 17:17:06,505 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 17:17:06,506 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 17:17:06,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 17:17:06,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 17:17:06,511 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 17:17:06,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4762d03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06, skipping insertion in model container [2018-02-04 17:17:06,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,527 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 17:17:06,557 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 17:17:06,650 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 17:17:06,662 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 17:17:06,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06 WrapperNode [2018-02-04 17:17:06,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 17:17:06,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 17:17:06,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 17:17:06,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 17:17:06,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (1/1) ... [2018-02-04 17:17:06,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 17:17:06,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 17:17:06,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 17:17:06,691 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 17:17:06,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (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 17:17:06,724 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 17:17:06,724 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 17:17:06,724 INFO L136 BoogieDeclarations]: Found implementation of procedure bubbleSort [2018-02-04 17:17:06,724 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 17:17:06,724 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure bubbleSort [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 17:17:06,725 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 17:17:06,726 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 17:17:06,904 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 17:17:06,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 05:17:06 BoogieIcfgContainer [2018-02-04 17:17:06,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 17:17:06,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 17:17:06,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 17:17:06,907 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 17:17:06,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 05:17:06" (1/3) ... [2018-02-04 17:17:06,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c6eb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 05:17:06, skipping insertion in model container [2018-02-04 17:17:06,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:17:06" (2/3) ... [2018-02-04 17:17:06,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c6eb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 05:17:06, skipping insertion in model container [2018-02-04 17:17:06,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 05:17:06" (3/3) ... [2018-02-04 17:17:06,909 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 17:17:06,914 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 17:17:06,919 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-02-04 17:17:06,948 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 17:17:06,948 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 17:17:06,948 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 17:17:06,948 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 17:17:06,948 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 17:17:06,948 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 17:17:06,949 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 17:17:06,949 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 17:17:06,949 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 17:17:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-02-04 17:17:06,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 17:17:06,964 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:17:06,965 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:17:06,965 INFO L371 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 17:17:06,968 INFO L82 PathProgramCache]: Analyzing trace with hash 334121063, now seen corresponding path program 1 times [2018-02-04 17:17:06,970 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:17:06,970 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:17:07,001 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,002 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:07,002 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:07,041 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:17:07,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:17:07,144 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:17:07,144 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 17:17:07,145 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 17:17:07,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 17:17:07,154 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 17:17:07,155 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 6 states. [2018-02-04 17:17:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:17:07,260 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-02-04 17:17:07,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 17:17:07,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 17:17:07,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:17:07,267 INFO L225 Difference]: With dead ends: 42 [2018-02-04 17:17:07,268 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 17:17:07,269 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 17:17:07,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 17:17:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-04 17:17:07,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-04 17:17:07,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-02-04 17:17:07,334 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2018-02-04 17:17:07,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:17:07,335 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-02-04 17:17:07,335 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 17:17:07,335 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-02-04 17:17:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 17:17:07,336 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:17:07,336 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:17:07,336 INFO L371 AbstractCegarLoop]: === Iteration 2 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 17:17:07,336 INFO L82 PathProgramCache]: Analyzing trace with hash 334121064, now seen corresponding path program 1 times [2018-02-04 17:17:07,336 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:17:07,336 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:17:07,337 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,337 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:07,337 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:07,355 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:17:07,450 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 17:17:07,450 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:17:07,450 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 17:17:07,451 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 17:17:07,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 17:17:07,451 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-04 17:17:07,451 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 8 states. [2018-02-04 17:17:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:17:07,665 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2018-02-04 17:17:07,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 17:17:07,665 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-02-04 17:17:07,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:17:07,668 INFO L225 Difference]: With dead ends: 56 [2018-02-04 17:17:07,668 INFO L226 Difference]: Without dead ends: 56 [2018-02-04 17:17:07,669 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 17:17:07,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-04 17:17:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2018-02-04 17:17:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-04 17:17:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-02-04 17:17:07,674 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 16 [2018-02-04 17:17:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:17:07,674 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-02-04 17:17:07,674 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 17:17:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-02-04 17:17:07,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 17:17:07,675 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:17:07,675 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 17:17:07,675 INFO L371 AbstractCegarLoop]: === Iteration 3 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 17:17:07,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1789385763, now seen corresponding path program 1 times [2018-02-04 17:17:07,676 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:17:07,676 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:17:07,676 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,677 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:07,677 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:07,686 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:17:07,717 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 17:17:07,717 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:17:07,717 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 17:17:07,717 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 17:17:07,718 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 17:17:07,718 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:17:07,718 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 5 states. [2018-02-04 17:17:07,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:17:07,748 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2018-02-04 17:17:07,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 17:17:07,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-04 17:17:07,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:17:07,751 INFO L225 Difference]: With dead ends: 84 [2018-02-04 17:17:07,751 INFO L226 Difference]: Without dead ends: 82 [2018-02-04 17:17:07,751 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 17:17:07,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-02-04 17:17:07,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 52. [2018-02-04 17:17:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-04 17:17:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-02-04 17:17:07,756 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 19 [2018-02-04 17:17:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:17:07,757 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-02-04 17:17:07,757 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 17:17:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-02-04 17:17:07,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 17:17:07,758 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:17:07,758 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 17:17:07,758 INFO L371 AbstractCegarLoop]: === Iteration 4 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 17:17:07,758 INFO L82 PathProgramCache]: Analyzing trace with hash -120775682, now seen corresponding path program 1 times [2018-02-04 17:17:07,758 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:17:07,758 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:17:07,759 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,759 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:07,759 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:07,770 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:17:07,813 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 17:17:07,813 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:17:07,813 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 17:17:07,813 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 17:17:07,814 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 17:17:07,814 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 17:17:07,814 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-02-04 17:17:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:17:07,864 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-02-04 17:17:07,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 17:17:07,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 17:17:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:17:07,865 INFO L225 Difference]: With dead ends: 53 [2018-02-04 17:17:07,865 INFO L226 Difference]: Without dead ends: 53 [2018-02-04 17:17:07,865 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 17:17:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-02-04 17:17:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2018-02-04 17:17:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-04 17:17:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-02-04 17:17:07,869 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 22 [2018-02-04 17:17:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:17:07,869 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-02-04 17:17:07,869 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 17:17:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-02-04 17:17:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 17:17:07,870 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:17:07,870 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 17:17:07,870 INFO L371 AbstractCegarLoop]: === Iteration 5 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 17:17:07,870 INFO L82 PathProgramCache]: Analyzing trace with hash 550921116, now seen corresponding path program 1 times [2018-02-04 17:17:07,870 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:17:07,870 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:17:07,871 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,871 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:07,871 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:07,884 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:17:07,971 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 17:17:07,971 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 17:17:07,971 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 17:17:07,972 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:08,004 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 17:17:08,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 17:17:08,035 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 17:17:08,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 17:17:08,038 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-02-04 17:17:08,145 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 17:17:08,145 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 17:17:08,145 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-02-04 17:17:08,146 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 17:17:08,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 17:17:08,146 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-02-04 17:17:08,146 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 14 states. [2018-02-04 17:17:08,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:17:08,359 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2018-02-04 17:17:08,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 17:17:08,360 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-02-04 17:17:08,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:17:08,360 INFO L225 Difference]: With dead ends: 39 [2018-02-04 17:17:08,360 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 17:17:08,361 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-02-04 17:17:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 17:17:08,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2018-02-04 17:17:08,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-04 17:17:08,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-02-04 17:17:08,362 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 23 [2018-02-04 17:17:08,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:17:08,363 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-02-04 17:17:08,363 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 17:17:08,363 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-02-04 17:17:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 17:17:08,363 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:17:08,363 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 17:17:08,363 INFO L371 AbstractCegarLoop]: === Iteration 6 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 17:17:08,363 INFO L82 PathProgramCache]: Analyzing trace with hash -996967546, now seen corresponding path program 1 times [2018-02-04 17:17:08,363 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:17:08,363 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:17:08,364 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:08,364 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:08,364 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:17:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:08,373 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:17:08,377 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 17:17:08,377 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 17:17:08,377 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 17:17:08,378 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:17:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:17:08,391 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 17:17:08,405 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 17:17:08,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-02-04 17:17:08,408 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 17:17:08,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 17:17:08,409 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-02-04 17:17:08,424 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc9.base| Int)) (and (= (store |c_old(#valid)| |main_#t~malloc9.base| 0) |c_#valid|) (= 0 (select |c_old(#valid)| |main_#t~malloc9.base|)))) is different from true [2018-02-04 17:17:08,427 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 17:17:08,427 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:17:08,427 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 17:17:08,427 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 17:17:08,427 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 17:17:08,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-02-04 17:17:08,428 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 6 states. [2018-02-04 17:17:08,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:17:08,479 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-02-04 17:17:08,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 17:17:08,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-02-04 17:17:08,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:17:08,480 INFO L225 Difference]: With dead ends: 34 [2018-02-04 17:17:08,480 INFO L226 Difference]: Without dead ends: 0 [2018-02-04 17:17:08,480 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2018-02-04 17:17:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-04 17:17:08,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-04 17:17:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-04 17:17:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-04 17:17:08,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-02-04 17:17:08,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:17:08,481 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-04 17:17:08,481 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 17:17:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-04 17:17:08,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-04 17:17:08,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 05:17:08 BoogieIcfgContainer [2018-02-04 17:17:08,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 17:17:08,485 INFO L168 Benchmark]: Toolchain (without parser) took 1979.59 ms. Allocated memory was 410.5 MB in the beginning and 633.9 MB in the end (delta: 223.3 MB). Free memory was 368.7 MB in the beginning and 568.8 MB in the end (delta: -200.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. [2018-02-04 17:17:08,485 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 410.5 MB. Free memory is still 374.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 17:17:08,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.56 ms. Allocated memory is still 410.5 MB. Free memory was 367.4 MB in the beginning and 356.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 17:17:08,486 INFO L168 Benchmark]: Boogie Preprocessor took 22.95 ms. Allocated memory is still 410.5 MB. Free memory was 356.8 MB in the beginning and 355.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 17:17:08,486 INFO L168 Benchmark]: RCFGBuilder took 214.29 ms. Allocated memory is still 410.5 MB. Free memory was 355.5 MB in the beginning and 337.4 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. [2018-02-04 17:17:08,486 INFO L168 Benchmark]: TraceAbstraction took 1578.89 ms. Allocated memory was 410.5 MB in the beginning and 633.9 MB in the end (delta: 223.3 MB). Free memory was 337.4 MB in the beginning and 568.8 MB in the end (delta: -231.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 17:17:08,487 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 410.5 MB. Free memory is still 374.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 160.56 ms. Allocated memory is still 410.5 MB. Free memory was 367.4 MB in the beginning and 356.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.95 ms. Allocated memory is still 410.5 MB. Free memory was 356.8 MB in the beginning and 355.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 214.29 ms. Allocated memory is still 410.5 MB. Free memory was 355.5 MB in the beginning and 337.4 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1578.89 ms. Allocated memory was 410.5 MB in the beginning and 633.9 MB in the end (delta: 223.3 MB). Free memory was 337.4 MB in the beginning and 568.8 MB in the end (delta: -231.4 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, 1.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 172 SDtfs, 363 SDslu, 392 SDs, 0 SdLazy, 412 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 34 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 136 ConstructedInterpolants, 25 QuantifiedInterpolants, 19095 SizeOfPredicates, 8 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 23 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_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_17-17-08-492.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_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_17-17-08-492.csv Received shutdown request...