java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/selectionsort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-03 22:55:31,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-03 22:55:31,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-03 22:55:31,376 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-03 22:55:31,376 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-03 22:55:31,377 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-03 22:55:31,378 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-03 22:55:31,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-03 22:55:31,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-03 22:55:31,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-03 22:55:31,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-03 22:55:31,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-03 22:55:31,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-03 22:55:31,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-03 22:55:31,385 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-03 22:55:31,387 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-03 22:55:31,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-03 22:55:31,390 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-03 22:55:31,391 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-03 22:55:31,392 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-03 22:55:31,394 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-03 22:55:31,397 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-03 22:55:31,398 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-03 22:55:31,398 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-03 22:55:31,407 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-03 22:55:31,407 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-03 22:55:31,407 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * Use SBE=true [2018-02-03 22:55:31,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-03 22:55:31,408 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-03 22:55:31,409 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-03 22:55:31,409 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-03 22:55:31,409 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-03 22:55:31,409 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-03 22:55:31,409 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-03 22:55:31,409 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-03 22:55:31,409 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-03 22:55:31,409 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-03 22:55:31,409 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-03 22:55:31,410 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-03 22:55:31,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-03 22:55:31,410 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-03 22:55:31,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-03 22:55:31,447 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-03 22:55:31,449 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-03 22:55:31,450 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-03 22:55:31,450 INFO L276 PluginConnector]: CDTParser initialized [2018-02-03 22:55:31,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/selectionsort-alloca_true-valid-memsafety_true-termination.i [2018-02-03 22:55:31,565 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-03 22:55:31,566 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-03 22:55:31,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-03 22:55:31,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-03 22:55:31,571 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-03 22:55:31,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db90158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31, skipping insertion in model container [2018-02-03 22:55:31,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,584 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-03 22:55:31,611 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-03 22:55:31,701 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-03 22:55:31,714 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-03 22:55:31,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31 WrapperNode [2018-02-03 22:55:31,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-03 22:55:31,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-03 22:55:31,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-03 22:55:31,722 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-03 22:55:31,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (1/1) ... [2018-02-03 22:55:31,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-03 22:55:31,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-03 22:55:31,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-03 22:55:31,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-03 22:55:31,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (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 [2018-02-03 22:55:31,784 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-03 22:55:31,784 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-03 22:55:31,784 INFO L136 BoogieDeclarations]: Found implementation of procedure SelectionSort [2018-02-03 22:55:31,784 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-03 22:55:31,784 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure SelectionSort [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-03 22:55:31,785 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-03 22:55:31,938 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-03 22:55:31,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.02 10:55:31 BoogieIcfgContainer [2018-02-03 22:55:31,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-03 22:55:31,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-03 22:55:31,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-03 22:55:31,940 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-03 22:55:31,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.02 10:55:31" (1/3) ... [2018-02-03 22:55:31,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398a156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.02 10:55:31, skipping insertion in model container [2018-02-03 22:55:31,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 10:55:31" (2/3) ... [2018-02-03 22:55:31,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398a156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.02 10:55:31, skipping insertion in model container [2018-02-03 22:55:31,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.02 10:55:31" (3/3) ... [2018-02-03 22:55:31,942 INFO L107 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca_true-valid-memsafety_true-termination.i [2018-02-03 22:55:31,948 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-03 22:55:31,952 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-02-03 22:55:31,973 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-03 22:55:31,974 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-03 22:55:31,974 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-03 22:55:31,974 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-03 22:55:31,974 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-03 22:55:31,974 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-03 22:55:31,974 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-03 22:55:31,974 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-03 22:55:31,975 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-03 22:55:31,983 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-02-03 22:55:31,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-03 22:55:31,991 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:31,991 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 22:55:31,992 INFO L371 AbstractCegarLoop]: === Iteration 1 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:31,995 INFO L82 PathProgramCache]: Analyzing trace with hash -545325107, now seen corresponding path program 1 times [2018-02-03 22:55:31,996 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:31,996 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:32,025 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,026 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:32,026 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:32,066 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:32,092 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 22:55:32,093 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-03 22:55:32,094 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-03 22:55:32,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-03 22:55:32,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-03 22:55:32,104 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-02-03 22:55:32,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:32,116 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-02-03 22:55:32,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-03 22:55:32,117 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-02-03 22:55:32,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:32,124 INFO L225 Difference]: With dead ends: 48 [2018-02-03 22:55:32,124 INFO L226 Difference]: Without dead ends: 45 [2018-02-03 22:55:32,125 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 [2018-02-03 22:55:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-02-03 22:55:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-02-03 22:55:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-02-03 22:55:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-02-03 22:55:32,201 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 15 [2018-02-03 22:55:32,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:32,201 INFO L432 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-02-03 22:55:32,201 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-03 22:55:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-02-03 22:55:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-03 22:55:32,202 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:32,202 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 22:55:32,202 INFO L371 AbstractCegarLoop]: === Iteration 2 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:32,203 INFO L82 PathProgramCache]: Analyzing trace with hash 274771065, now seen corresponding path program 1 times [2018-02-03 22:55:32,203 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:32,203 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:32,204 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,204 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:32,204 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:32,220 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:32,288 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 22:55:32,288 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-03 22:55:32,289 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-03 22:55:32,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-03 22:55:32,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-03 22:55:32,289 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 6 states. [2018-02-03 22:55:32,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:32,403 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-02-03 22:55:32,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-03 22:55:32,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-03 22:55:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:32,404 INFO L225 Difference]: With dead ends: 39 [2018-02-03 22:55:32,405 INFO L226 Difference]: Without dead ends: 39 [2018-02-03 22:55:32,405 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 [2018-02-03 22:55:32,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-03 22:55:32,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-03 22:55:32,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-03 22:55:32,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-02-03 22:55:32,409 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2018-02-03 22:55:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:32,409 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-02-03 22:55:32,409 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-03 22:55:32,409 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-02-03 22:55:32,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-03 22:55:32,410 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:32,410 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 22:55:32,410 INFO L371 AbstractCegarLoop]: === Iteration 3 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:32,411 INFO L82 PathProgramCache]: Analyzing trace with hash 274771066, now seen corresponding path program 1 times [2018-02-03 22:55:32,411 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:32,411 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:32,412 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,412 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:32,412 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:32,426 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:32,453 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 22:55:32,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-03 22:55:32,453 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-03 22:55:32,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-03 22:55:32,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-03 22:55:32,454 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2018-02-03 22:55:32,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:32,465 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-02-03 22:55:32,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-03 22:55:32,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-02-03 22:55:32,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:32,466 INFO L225 Difference]: With dead ends: 41 [2018-02-03 22:55:32,466 INFO L226 Difference]: Without dead ends: 41 [2018-02-03 22:55:32,467 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 [2018-02-03 22:55:32,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-03 22:55:32,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-02-03 22:55:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-03 22:55:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-02-03 22:55:32,469 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 16 [2018-02-03 22:55:32,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:32,469 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-02-03 22:55:32,469 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-03 22:55:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-02-03 22:55:32,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-03 22:55:32,469 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:32,470 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 22:55:32,470 INFO L371 AbstractCegarLoop]: === Iteration 4 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:32,470 INFO L82 PathProgramCache]: Analyzing trace with hash 274771112, now seen corresponding path program 1 times [2018-02-03 22:55:32,470 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:32,470 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:32,470 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,471 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:32,471 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:32,478 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:32,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:32,601 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 22:55:32,601 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-03 22:55:32,601 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-03 22:55:32,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-03 22:55:32,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-03 22:55:32,602 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 8 states. [2018-02-03 22:55:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:32,812 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-02-03 22:55:32,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-03 22:55:32,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-02-03 22:55:32,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:32,814 INFO L225 Difference]: With dead ends: 69 [2018-02-03 22:55:32,815 INFO L226 Difference]: Without dead ends: 69 [2018-02-03 22:55:32,815 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 [2018-02-03 22:55:32,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-02-03 22:55:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2018-02-03 22:55:32,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-02-03 22:55:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2018-02-03 22:55:32,819 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 16 [2018-02-03 22:55:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:32,819 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2018-02-03 22:55:32,819 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-03 22:55:32,819 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-02-03 22:55:32,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-03 22:55:32,820 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:32,820 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 22:55:32,820 INFO L371 AbstractCegarLoop]: === Iteration 5 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:32,820 INFO L82 PathProgramCache]: Analyzing trace with hash -72030156, now seen corresponding path program 1 times [2018-02-03 22:55:32,820 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:32,820 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:32,821 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,821 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:32,821 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:32,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:32,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:32,890 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 22:55:32,890 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-03 22:55:32,890 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-03 22:55:32,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-03 22:55:32,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-03 22:55:32,891 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 8 states. [2018-02-03 22:55:33,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:33,047 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2018-02-03 22:55:33,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-03 22:55:33,047 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-02-03 22:55:33,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:33,048 INFO L225 Difference]: With dead ends: 83 [2018-02-03 22:55:33,048 INFO L226 Difference]: Without dead ends: 83 [2018-02-03 22:55:33,048 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 [2018-02-03 22:55:33,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-02-03 22:55:33,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 63. [2018-02-03 22:55:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-02-03 22:55:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2018-02-03 22:55:33,052 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 17 [2018-02-03 22:55:33,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:33,052 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2018-02-03 22:55:33,052 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-03 22:55:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2018-02-03 22:55:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-03 22:55:33,052 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:33,053 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 22:55:33,053 INFO L371 AbstractCegarLoop]: === Iteration 6 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1045798781, now seen corresponding path program 1 times [2018-02-03 22:55:33,053 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:33,053 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:33,054 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,054 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:33,054 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:33,064 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:33,109 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 22:55:33,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-03 22:55:33,109 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-03 22:55:33,109 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-03 22:55:33,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-03 22:55:33,110 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand 4 states. [2018-02-03 22:55:33,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:33,145 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2018-02-03 22:55:33,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-03 22:55:33,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-02-03 22:55:33,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:33,146 INFO L225 Difference]: With dead ends: 62 [2018-02-03 22:55:33,146 INFO L226 Difference]: Without dead ends: 56 [2018-02-03 22:55:33,146 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-03 22:55:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-03 22:55:33,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-02-03 22:55:33,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-03 22:55:33,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2018-02-03 22:55:33,149 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 19 [2018-02-03 22:55:33,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:33,149 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2018-02-03 22:55:33,149 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-03 22:55:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2018-02-03 22:55:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-03 22:55:33,149 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:33,149 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] [2018-02-03 22:55:33,149 INFO L371 AbstractCegarLoop]: === Iteration 7 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:33,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1880509326, now seen corresponding path program 1 times [2018-02-03 22:55:33,149 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:33,149 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:33,150 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,150 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:33,150 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:33,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:33,214 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-03 22:55:33,214 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-03 22:55:33,220 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:33,260 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-03 22:55:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:33,348 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-03 22:55:33,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-02-03 22:55:33,348 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-03 22:55:33,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-03 22:55:33,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-02-03 22:55:33,348 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand 14 states. [2018-02-03 22:55:33,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:33,547 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-02-03 22:55:33,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-03 22:55:33,547 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2018-02-03 22:55:33,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:33,548 INFO L225 Difference]: With dead ends: 67 [2018-02-03 22:55:33,548 INFO L226 Difference]: Without dead ends: 67 [2018-02-03 22:55:33,548 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-02-03 22:55:33,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-02-03 22:55:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 54. [2018-02-03 22:55:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-03 22:55:33,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2018-02-03 22:55:33,552 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 22 [2018-02-03 22:55:33,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:33,552 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2018-02-03 22:55:33,552 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-03 22:55:33,552 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2018-02-03 22:55:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-03 22:55:33,553 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:33,553 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] [2018-02-03 22:55:33,553 INFO L371 AbstractCegarLoop]: === Iteration 8 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:33,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1833751648, now seen corresponding path program 1 times [2018-02-03 22:55:33,553 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:33,553 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:33,554 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,554 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:33,554 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:33,564 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:33,608 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-03 22:55:33,608 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-03 22:55:33,615 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:33,631 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-03 22:55:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:33,761 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-03 22:55:33,762 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9] total 13 [2018-02-03 22:55:33,762 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-03 22:55:33,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-03 22:55:33,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-02-03 22:55:33,763 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 14 states. [2018-02-03 22:55:33,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:33,940 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2018-02-03 22:55:33,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-03 22:55:33,940 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-02-03 22:55:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:33,941 INFO L225 Difference]: With dead ends: 90 [2018-02-03 22:55:33,941 INFO L226 Difference]: Without dead ends: 90 [2018-02-03 22:55:33,941 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2018-02-03 22:55:33,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-02-03 22:55:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 53. [2018-02-03 22:55:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-02-03 22:55:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2018-02-03 22:55:33,945 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 23 [2018-02-03 22:55:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:33,945 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2018-02-03 22:55:33,945 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-03 22:55:33,945 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2018-02-03 22:55:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-03 22:55:33,946 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 22:55:33,946 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] [2018-02-03 22:55:33,946 INFO L371 AbstractCegarLoop]: === Iteration 9 === [SelectionSortErr2RequiresViolation, SelectionSortErr4RequiresViolation, SelectionSortErr8RequiresViolation, SelectionSortErr9RequiresViolation, SelectionSortErr3RequiresViolation, SelectionSortErr1RequiresViolation, SelectionSortErr5RequiresViolation, SelectionSortErr11RequiresViolation, SelectionSortErr7RequiresViolation, SelectionSortErr10RequiresViolation, SelectionSortErr0RequiresViolation, SelectionSortErr6RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-03 22:55:33,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1011769969, now seen corresponding path program 1 times [2018-02-03 22:55:33,946 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 22:55:33,946 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 22:55:33,947 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,947 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:33,947 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 22:55:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:33,956 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 22:55:34,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:34,052 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-03 22:55:34,052 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-03 22:55:34,059 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 22:55:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 22:55:34,068 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-03 22:55:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 22:55:34,146 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-03 22:55:34,146 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2018-02-03 22:55:34,146 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-03 22:55:34,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-03 22:55:34,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-02-03 22:55:34,147 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 17 states. [2018-02-03 22:55:34,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 22:55:34,365 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2018-02-03 22:55:34,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-03 22:55:34,366 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 24 [2018-02-03 22:55:34,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 22:55:34,366 INFO L225 Difference]: With dead ends: 71 [2018-02-03 22:55:34,366 INFO L226 Difference]: Without dead ends: 0 [2018-02-03 22:55:34,366 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2018-02-03 22:55:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-03 22:55:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-03 22:55:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-03 22:55:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-03 22:55:34,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-02-03 22:55:34,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 22:55:34,367 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-03 22:55:34,367 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-03 22:55:34,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-03 22:55:34,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-03 22:55:34,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.02 10:55:34 BoogieIcfgContainer [2018-02-03 22:55:34,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-03 22:55:34,371 INFO L168 Benchmark]: Toolchain (without parser) took 2805.88 ms. Allocated memory was 403.2 MB in the beginning and 656.9 MB in the end (delta: 253.8 MB). Free memory was 361.4 MB in the beginning and 565.1 MB in the end (delta: -203.7 MB). Peak memory consumption was 50.0 MB. Max. memory is 5.3 GB. [2018-02-03 22:55:34,372 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-03 22:55:34,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.83 ms. Allocated memory is still 403.2 MB. Free memory was 360.1 MB in the beginning and 349.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-03 22:55:34,373 INFO L168 Benchmark]: Boogie Preprocessor took 24.74 ms. Allocated memory is still 403.2 MB. Free memory was 349.4 MB in the beginning and 348.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-03 22:55:34,373 INFO L168 Benchmark]: RCFGBuilder took 191.66 ms. Allocated memory is still 403.2 MB. Free memory was 348.1 MB in the beginning and 330.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. [2018-02-03 22:55:34,373 INFO L168 Benchmark]: TraceAbstraction took 2431.98 ms. Allocated memory was 403.2 MB in the beginning and 656.9 MB in the end (delta: 253.8 MB). Free memory was 328.8 MB in the beginning and 565.1 MB in the end (delta: -236.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 5.3 GB. [2018-02-03 22:55:34,374 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 154.83 ms. Allocated memory is still 403.2 MB. Free memory was 360.1 MB in the beginning and 349.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.74 ms. Allocated memory is still 403.2 MB. Free memory was 349.4 MB in the beginning and 348.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 191.66 ms. Allocated memory is still 403.2 MB. Free memory was 348.1 MB in the beginning and 330.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2431.98 ms. Allocated memory was 403.2 MB in the beginning and 656.9 MB in the end (delta: 253.8 MB). Free memory was 328.8 MB in the beginning and 565.1 MB in the end (delta: -236.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 557]: 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, 2.4s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 260 SDtfs, 777 SDslu, 725 SDs, 0 SdLazy, 942 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=5, 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, 9 MinimizatonAttempts, 88 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 225 ConstructedInterpolants, 7 QuantifiedInterpolants, 28121 SizeOfPredicates, 11 NumberOfNonLiveVariables, 278 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 6/16 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/selectionsort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-03_22-55-34-381.csv 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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-03_22-55-34-381.csv Received shutdown request...