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/selectionsort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:04:01,235 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:04:01,236 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:04:01,245 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:04:01,246 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:04:01,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:04:01,247 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:04:01,248 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:04:01,249 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:04:01,250 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:04:01,251 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:04:01,251 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:04:01,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:04:01,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:04:01,253 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:04:01,255 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:04:01,257 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:04:01,258 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:04:01,260 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:04:01,261 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:04:01,262 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:04:01,266 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:04:01,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:04:01,267 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:04:01,276 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:04:01,276 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:04:01,277 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:04:01,278 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:04:01,278 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:04:01,278 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:04:01,278 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:04:01,278 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:04:01,278 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:04:01,278 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:04:01,279 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:04:01,279 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:04:01,279 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:04:01,279 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:04:01,279 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:04:01,279 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:04:01,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:04:01,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:04:01,280 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:04:01,280 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:04:01,280 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:04:01,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:04:01,280 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:04:01,281 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:04:01,281 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:04:01,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:04:01,318 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:04:01,322 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:04:01,323 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:04:01,323 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:04:01,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/selectionsort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:04:01,451 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:04:01,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:04:01,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:04:01,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:04:01,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:04:01,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,467 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 04:04:01, skipping insertion in model container [2018-02-04 04:04:01,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,486 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:04:01,517 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:04:01,622 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:04:01,639 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:04:01,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01 WrapperNode [2018-02-04 04:04:01,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:04:01,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:04:01,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:04:01,645 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:04:01,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... [2018-02-04 04:04:01,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:04:01,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:04:01,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:04:01,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:04:01,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:04:01,727 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:04:01,728 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:04:01,728 INFO L136 BoogieDeclarations]: Found implementation of procedure SelectionSort [2018-02-04 04:04:01,728 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:04:01,728 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:04:01,728 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:04:01,728 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:04:01,728 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:04:01,728 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:04:01,728 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:04:01,729 INFO L128 BoogieDeclarations]: Found specification of procedure SelectionSort [2018-02-04 04:04:01,729 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:04:01,729 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:04:01,729 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:04:01,924 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:04:01,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:04:01 BoogieIcfgContainer [2018-02-04 04:04:01,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:04:01,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:04:01,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:04:01,929 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:04:01,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:04:01" (1/3) ... [2018-02-04 04:04:01,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6ab0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:04:01, skipping insertion in model container [2018-02-04 04:04:01,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:01" (2/3) ... [2018-02-04 04:04:01,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6ab0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:04:01, skipping insertion in model container [2018-02-04 04:04:01,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:04:01" (3/3) ... [2018-02-04 04:04:01,932 INFO L107 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:04:01,941 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:04:01,947 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-02-04 04:04:01,980 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:04:01,980 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:04:01,980 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:04:01,980 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:04:01,980 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:04:01,980 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:04:01,980 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:04:01,981 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:04:01,981 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:04:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-02-04 04:04:02,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:04:02,001 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:02,002 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:02,002 INFO L371 AbstractCegarLoop]: === Iteration 1 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:02,007 INFO L82 PathProgramCache]: Analyzing trace with hash -545325107, now seen corresponding path program 1 times [2018-02-04 04:04:02,009 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:02,009 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:02,045 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,045 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:02,045 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:02,098 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:02,135 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:02,135 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:04:02,136 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-04 04:04:02,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-04 04:04:02,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 04:04:02,150 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-02-04 04:04:02,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:02,162 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-02-04 04:04:02,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-04 04:04:02,163 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-02-04 04:04:02,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:02,168 INFO L225 Difference]: With dead ends: 48 [2018-02-04 04:04:02,169 INFO L226 Difference]: Without dead ends: 45 [2018-02-04 04:04:02,170 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 04:04:02,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-02-04 04:04:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-02-04 04:04:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-02-04 04:04:02,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-02-04 04:04:02,248 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 15 [2018-02-04 04:04:02,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:02,248 INFO L432 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-02-04 04:04:02,249 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-04 04:04:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-02-04 04:04:02,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:04:02,249 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:02,249 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:02,250 INFO L371 AbstractCegarLoop]: === Iteration 2 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:02,250 INFO L82 PathProgramCache]: Analyzing trace with hash 274771065, now seen corresponding path program 1 times [2018-02-04 04:04:02,250 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:02,250 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:02,251 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,251 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:02,252 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:02,273 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:02,340 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:02,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:04:02,342 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:04:02,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:04:02,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:04:02,342 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 6 states. [2018-02-04 04:04:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:02,468 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-02-04 04:04:02,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:04:02,468 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 04:04:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:02,469 INFO L225 Difference]: With dead ends: 39 [2018-02-04 04:04:02,469 INFO L226 Difference]: Without dead ends: 39 [2018-02-04 04:04:02,470 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:04:02,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-04 04:04:02,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-04 04:04:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-04 04:04:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-02-04 04:04:02,475 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2018-02-04 04:04:02,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:02,475 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-02-04 04:04:02,475 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:04:02,476 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-02-04 04:04:02,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:04:02,476 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:02,476 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:02,476 INFO L371 AbstractCegarLoop]: === Iteration 3 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:02,476 INFO L82 PathProgramCache]: Analyzing trace with hash 274771066, now seen corresponding path program 1 times [2018-02-04 04:04:02,476 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:02,476 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:02,477 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,477 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:02,477 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:02,490 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:02,516 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:02,516 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:04:02,517 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:04:02,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:04:02,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:04:02,517 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2018-02-04 04:04:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:02,528 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-02-04 04:04:02,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:04:02,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-02-04 04:04:02,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:02,529 INFO L225 Difference]: With dead ends: 41 [2018-02-04 04:04:02,529 INFO L226 Difference]: Without dead ends: 41 [2018-02-04 04:04:02,529 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:04:02,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-04 04:04:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-02-04 04:04:02,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-04 04:04:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-02-04 04:04:02,531 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 16 [2018-02-04 04:04:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:02,532 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-02-04 04:04:02,532 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:04:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-02-04 04:04:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:04:02,532 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:02,532 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:02,532 INFO L371 AbstractCegarLoop]: === Iteration 4 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:02,532 INFO L82 PathProgramCache]: Analyzing trace with hash 274771112, now seen corresponding path program 1 times [2018-02-04 04:04:02,532 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:02,533 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:02,533 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,533 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:02,533 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:02,541 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:02,667 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:02,668 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:04:02,668 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:04:02,668 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:04:02,668 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:04:02,669 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 8 states. [2018-02-04 04:04:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:02,981 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-02-04 04:04:02,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:04:02,982 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-02-04 04:04:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:02,985 INFO L225 Difference]: With dead ends: 69 [2018-02-04 04:04:02,985 INFO L226 Difference]: Without dead ends: 69 [2018-02-04 04:04:02,986 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-02-04 04:04:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-02-04 04:04:02,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2018-02-04 04:04:02,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-02-04 04:04:02,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2018-02-04 04:04:02,990 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 16 [2018-02-04 04:04:02,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:02,991 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2018-02-04 04:04:02,991 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:04:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-02-04 04:04:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:04:02,992 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:02,992 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:02,992 INFO L371 AbstractCegarLoop]: === Iteration 5 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:02,992 INFO L82 PathProgramCache]: Analyzing trace with hash -72030156, now seen corresponding path program 1 times [2018-02-04 04:04:02,992 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:02,993 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:02,994 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:02,994 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:02,994 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:03,005 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:03,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:03,059 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:03,059 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:04:03,060 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:04:03,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:04:03,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:04:03,060 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 8 states. [2018-02-04 04:04:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:03,231 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2018-02-04 04:04:03,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:04:03,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-02-04 04:04:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:03,232 INFO L225 Difference]: With dead ends: 83 [2018-02-04 04:04:03,232 INFO L226 Difference]: Without dead ends: 83 [2018-02-04 04:04:03,233 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-02-04 04:04:03,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-02-04 04:04:03,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 63. [2018-02-04 04:04:03,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-02-04 04:04:03,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2018-02-04 04:04:03,240 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 17 [2018-02-04 04:04:03,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:03,241 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2018-02-04 04:04:03,241 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:04:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2018-02-04 04:04:03,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:04:03,242 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:03,242 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:03,242 INFO L371 AbstractCegarLoop]: === Iteration 6 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:03,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1045798781, now seen corresponding path program 1 times [2018-02-04 04:04:03,243 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:03,243 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:03,243 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:03,243 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:03,244 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:03,254 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:03,259 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:04:03,265 INFO L168 Benchmark]: Toolchain (without parser) took 1813.88 ms. Allocated memory was 402.7 MB in the beginning and 608.7 MB in the end (delta: 206.0 MB). Free memory was 360.7 MB in the beginning and 457.4 MB in the end (delta: -96.7 MB). Peak memory consumption was 109.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:03,266 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 402.7 MB. Free memory is still 365.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:04:03,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.16 ms. Allocated memory is still 402.7 MB. Free memory was 359.3 MB in the beginning and 348.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:03,267 INFO L168 Benchmark]: Boogie Preprocessor took 38.35 ms. Allocated memory is still 402.7 MB. Free memory was 348.7 MB in the beginning and 347.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:03,267 INFO L168 Benchmark]: RCFGBuilder took 241.11 ms. Allocated memory is still 402.7 MB. Free memory was 347.4 MB in the beginning and 328.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:03,267 INFO L168 Benchmark]: TraceAbstraction took 1338.97 ms. Allocated memory was 402.7 MB in the beginning and 608.7 MB in the end (delta: 206.0 MB). Free memory was 327.5 MB in the beginning and 457.4 MB in the end (delta: -129.8 MB). Peak memory consumption was 76.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:03,269 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 402.7 MB. Free memory is still 365.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 192.16 ms. Allocated memory is still 402.7 MB. Free memory was 359.3 MB in the beginning and 348.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.35 ms. Allocated memory is still 402.7 MB. Free memory was 348.7 MB in the beginning and 347.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 241.11 ms. Allocated memory is still 402.7 MB. Free memory was 347.4 MB in the beginning and 328.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1338.97 ms. Allocated memory was 402.7 MB in the beginning and 608.7 MB in the end (delta: 206.0 MB). Free memory was 327.5 MB in the beginning and 457.4 MB in the end (delta: -129.8 MB). Peak memory consumption was 76.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-04-03-276.csv Received shutdown request...