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/insertionsort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 18:24:24,825 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 18:24:24,826 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 18:24:24,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 18:24:24,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 18:24:24,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 18:24:24,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 18:24:24,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 18:24:24,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 18:24:24,841 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 18:24:24,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 18:24:24,842 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 18:24:24,843 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 18:24:24,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 18:24:24,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 18:24:24,847 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 18:24:24,848 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 18:24:24,850 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 18:24:24,850 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 18:24:24,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 18:24:24,853 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 18:24:24,853 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 18:24:24,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 18:24:24,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 18:24:24,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 18:24:24,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 18:24:24,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 18:24:24,856 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 18:24:24,857 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 18:24:24,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 18:24:24,857 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 18:24:24,858 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-02 18:24:24,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 18:24:24,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 18:24:24,869 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 18:24:24,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 18:24:24,869 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 18:24:24,869 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 18:24:24,869 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 18:24:24,869 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 18:24:24,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 18:24:24,870 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 18:24:24,870 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 18:24:24,870 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 18:24:24,870 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 18:24:24,870 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 18:24:24,870 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 18:24:24,871 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 18:24:24,871 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 18:24:24,871 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 18:24:24,871 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 18:24:24,871 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 18:24:24,871 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 18:24:24,871 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 18:24:24,872 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 18:24:24,872 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 18:24:24,872 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 18:24:24,899 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 18:24:24,909 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 18:24:24,913 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 18:24:24,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 18:24:24,914 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 18:24:24,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/insertionsort-alloca_true-valid-memsafety_true-termination.i [2018-02-02 18:24:25,046 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 18:24:25,047 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 18:24:25,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 18:24:25,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 18:24:25,054 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 18:24:25,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc5225c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25, skipping insertion in model container [2018-02-02 18:24:25,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,071 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:24:25,100 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:24:25,183 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:24:25,195 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:24:25,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25 WrapperNode [2018-02-02 18:24:25,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 18:24:25,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 18:24:25,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 18:24:25,201 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 18:24:25,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... [2018-02-02 18:24:25,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 18:24:25,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 18:24:25,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 18:24:25,230 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 18:24:25,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 18:24:25,264 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 18:24:25,264 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 18:24:25,264 INFO L136 BoogieDeclarations]: Found implementation of procedure insertionSort [2018-02-02 18:24:25,264 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 18:24:25,264 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 18:24:25,264 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure insertionSort [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 18:24:25,265 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 18:24:25,392 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 18:24:25,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:24:25 BoogieIcfgContainer [2018-02-02 18:24:25,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 18:24:25,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 18:24:25,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 18:24:25,394 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 18:24:25,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 06:24:25" (1/3) ... [2018-02-02 18:24:25,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510564f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:24:25, skipping insertion in model container [2018-02-02 18:24:25,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:24:25" (2/3) ... [2018-02-02 18:24:25,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510564f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:24:25, skipping insertion in model container [2018-02-02 18:24:25,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:24:25" (3/3) ... [2018-02-02 18:24:25,396 INFO L107 eAbstractionObserver]: Analyzing ICFG insertionsort-alloca_true-valid-memsafety_true-termination.i [2018-02-02 18:24:25,402 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 18:24:25,407 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-02 18:24:25,431 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 18:24:25,432 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 18:24:25,432 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 18:24:25,432 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 18:24:25,432 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 18:24:25,432 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 18:24:25,432 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 18:24:25,432 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 18:24:25,433 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 18:24:25,445 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-02-02 18:24:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 18:24:25,454 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:25,455 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:25,455 INFO L371 AbstractCegarLoop]: === Iteration 1 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:25,459 INFO L82 PathProgramCache]: Analyzing trace with hash 243546787, now seen corresponding path program 1 times [2018-02-02 18:24:25,461 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:25,462 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:25,503 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:25,504 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:25,504 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:25,556 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:25,619 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:24:25,620 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 18:24:25,621 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 18:24:25,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 18:24:25,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 18:24:25,630 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 6 states. [2018-02-02 18:24:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:25,755 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-02-02 18:24:25,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 18:24:25,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-02 18:24:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:25,820 INFO L225 Difference]: With dead ends: 41 [2018-02-02 18:24:25,820 INFO L226 Difference]: Without dead ends: 38 [2018-02-02 18:24:25,823 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 [2018-02-02 18:24:25,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-02-02 18:24:25,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-02-02 18:24:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-02 18:24:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-02-02 18:24:25,845 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-02-02 18:24:25,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:25,846 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-02-02 18:24:25,846 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 18:24:25,846 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-02-02 18:24:25,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 18:24:25,846 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:25,846 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:25,846 INFO L371 AbstractCegarLoop]: === Iteration 2 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:25,847 INFO L82 PathProgramCache]: Analyzing trace with hash 243546788, now seen corresponding path program 1 times [2018-02-02 18:24:25,847 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:25,847 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:25,848 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:25,848 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:25,848 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:25,860 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:25,963 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:24:25,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 18:24:25,964 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 18:24:25,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 18:24:25,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-02 18:24:25,965 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 7 states. [2018-02-02 18:24:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:26,113 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-02-02 18:24:26,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 18:24:26,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-02-02 18:24:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:26,116 INFO L225 Difference]: With dead ends: 59 [2018-02-02 18:24:26,117 INFO L226 Difference]: Without dead ends: 59 [2018-02-02 18:24:26,117 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-02-02 18:24:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-02-02 18:24:26,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 41. [2018-02-02 18:24:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-02 18:24:26,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-02-02 18:24:26,122 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2018-02-02 18:24:26,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:26,122 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-02-02 18:24:26,122 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 18:24:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-02-02 18:24:26,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 18:24:26,123 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:26,123 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:26,123 INFO L371 AbstractCegarLoop]: === Iteration 3 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:26,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1724462409, now seen corresponding path program 1 times [2018-02-02 18:24:26,124 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:26,124 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:26,125 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,125 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:26,125 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:26,137 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:26,200 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:24:26,200 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 18:24:26,200 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 18:24:26,201 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 18:24:26,201 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:24:26,201 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2018-02-02 18:24:26,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:26,307 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2018-02-02 18:24:26,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 18:24:26,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-02-02 18:24:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:26,310 INFO L225 Difference]: With dead ends: 79 [2018-02-02 18:24:26,311 INFO L226 Difference]: Without dead ends: 79 [2018-02-02 18:24:26,311 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-02-02 18:24:26,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-02-02 18:24:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 48. [2018-02-02 18:24:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-02-02 18:24:26,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-02-02 18:24:26,316 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 18 [2018-02-02 18:24:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:26,316 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-02-02 18:24:26,317 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 18:24:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-02-02 18:24:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 18:24:26,317 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:26,317 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:26,317 INFO L371 AbstractCegarLoop]: === Iteration 4 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:26,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1435415779, now seen corresponding path program 1 times [2018-02-02 18:24:26,317 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:26,318 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:26,318 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,318 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:26,318 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:26,330 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:26,363 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:24:26,363 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 18:24:26,364 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 18:24:26,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 18:24:26,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 18:24:26,364 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 4 states. [2018-02-02 18:24:26,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:26,405 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2018-02-02 18:24:26,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 18:24:26,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-02-02 18:24:26,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:26,406 INFO L225 Difference]: With dead ends: 47 [2018-02-02 18:24:26,406 INFO L226 Difference]: Without dead ends: 41 [2018-02-02 18:24:26,407 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:24:26,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-02 18:24:26,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-02-02 18:24:26,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-02 18:24:26,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-02-02 18:24:26,410 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 19 [2018-02-02 18:24:26,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:26,410 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-02-02 18:24:26,410 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 18:24:26,410 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-02-02 18:24:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 18:24:26,411 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:26,411 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:26,411 INFO L371 AbstractCegarLoop]: === Iteration 5 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:26,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1918733159, now seen corresponding path program 1 times [2018-02-02 18:24:26,412 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:26,412 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:26,412 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,413 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:26,413 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:26,422 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:26,458 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:24:26,458 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 18:24:26,459 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 18:24:26,459 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 18:24:26,459 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:24:26,459 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 5 states. [2018-02-02 18:24:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:26,533 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2018-02-02 18:24:26,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 18:24:26,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 18:24:26,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:26,534 INFO L225 Difference]: With dead ends: 68 [2018-02-02 18:24:26,534 INFO L226 Difference]: Without dead ends: 68 [2018-02-02 18:24:26,534 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:24:26,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-02-02 18:24:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2018-02-02 18:24:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-02 18:24:26,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-02-02 18:24:26,538 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 19 [2018-02-02 18:24:26,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:26,538 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-02-02 18:24:26,538 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 18:24:26,539 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-02-02 18:24:26,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-02 18:24:26,539 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:26,539 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:26,539 INFO L371 AbstractCegarLoop]: === Iteration 6 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:26,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1355765508, now seen corresponding path program 1 times [2018-02-02 18:24:26,540 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:26,540 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:26,540 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,540 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:26,541 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:26,550 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:26,628 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:24:26,628 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 18:24:26,628 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 18:24:26,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 18:24:26,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:24:26,629 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2018-02-02 18:24:26,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:26,743 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2018-02-02 18:24:26,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 18:24:26,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-02-02 18:24:26,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:26,744 INFO L225 Difference]: With dead ends: 66 [2018-02-02 18:24:26,744 INFO L226 Difference]: Without dead ends: 66 [2018-02-02 18:24:26,745 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-02-02 18:24:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-02-02 18:24:26,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 43. [2018-02-02 18:24:26,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-02-02 18:24:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-02-02 18:24:26,755 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 21 [2018-02-02 18:24:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:26,755 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-02-02 18:24:26,755 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 18:24:26,756 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-02-02 18:24:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 18:24:26,756 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:26,756 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:26,756 INFO L371 AbstractCegarLoop]: === Iteration 7 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:26,757 INFO L82 PathProgramCache]: Analyzing trace with hash 461327576, now seen corresponding path program 1 times [2018-02-02 18:24:26,757 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:26,757 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:26,758 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,758 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:26,758 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:26,776 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:26,877 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 18:24:26,877 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-02 18:24:26,884 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:26,913 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 18:24:26,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-02 18:24:26,955 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 18:24:26,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-02 18:24:26,958 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-02-02 18:24:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:27,102 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 18:24:27,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2018-02-02 18:24:27,102 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-02 18:24:27,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-02 18:24:27,103 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-02-02 18:24:27,103 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 13 states. [2018-02-02 18:24:27,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:27,280 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-02-02 18:24:27,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 18:24:27,281 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-02-02 18:24:27,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:27,282 INFO L225 Difference]: With dead ends: 57 [2018-02-02 18:24:27,282 INFO L226 Difference]: Without dead ends: 57 [2018-02-02 18:24:27,282 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2018-02-02 18:24:27,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-02-02 18:24:27,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 42. [2018-02-02 18:24:27,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-02 18:24:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-02-02 18:24:27,285 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2018-02-02 18:24:27,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:27,285 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-02-02 18:24:27,285 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-02 18:24:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-02-02 18:24:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-02 18:24:27,286 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:27,286 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:27,286 INFO L371 AbstractCegarLoop]: === Iteration 8 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:27,287 INFO L82 PathProgramCache]: Analyzing trace with hash 2040783234, now seen corresponding path program 1 times [2018-02-02 18:24:27,287 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:27,287 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:27,287 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:27,288 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:27,288 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:27,296 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:27,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:27,326 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 18:24:27,326 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 [2018-02-02 18:24:27,331 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:27,349 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 18:24:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:27,391 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 18:24:27,391 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-02-02 18:24:27,392 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 18:24:27,392 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 18:24:27,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:24:27,392 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 8 states. [2018-02-02 18:24:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:27,453 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-02-02 18:24:27,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 18:24:27,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-02-02 18:24:27,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:27,455 INFO L225 Difference]: With dead ends: 60 [2018-02-02 18:24:27,455 INFO L226 Difference]: Without dead ends: 60 [2018-02-02 18:24:27,455 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-02-02 18:24:27,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-02-02 18:24:27,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 47. [2018-02-02 18:24:27,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-02-02 18:24:27,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-02-02 18:24:27,459 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 27 [2018-02-02 18:24:27,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:27,460 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-02-02 18:24:27,460 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 18:24:27,460 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-02-02 18:24:27,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-02 18:24:27,460 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:27,460 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, 1, 1, 1, 1] [2018-02-02 18:24:27,461 INFO L371 AbstractCegarLoop]: === Iteration 9 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:27,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1160223154, now seen corresponding path program 1 times [2018-02-02 18:24:27,461 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:27,461 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:27,462 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:27,462 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:27,462 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:27,470 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:27,582 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 18:24:27,582 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 [2018-02-02 18:24:27,587 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:27,608 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 18:24:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:27,828 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 18:24:27,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2018-02-02 18:24:27,829 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-02 18:24:27,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-02 18:24:27,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2018-02-02 18:24:27,829 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 21 states. [2018-02-02 18:24:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:28,361 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2018-02-02 18:24:28,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-02 18:24:28,362 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 28 [2018-02-02 18:24:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:28,362 INFO L225 Difference]: With dead ends: 69 [2018-02-02 18:24:28,362 INFO L226 Difference]: Without dead ends: 69 [2018-02-02 18:24:28,363 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=278, Invalid=1054, Unknown=0, NotChecked=0, Total=1332 [2018-02-02 18:24:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-02-02 18:24:28,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 54. [2018-02-02 18:24:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-02 18:24:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-02-02 18:24:28,365 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 28 [2018-02-02 18:24:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:28,365 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-02-02 18:24:28,365 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-02 18:24:28,365 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-02-02 18:24:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-02-02 18:24:28,366 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:24:28,366 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:24:28,366 INFO L371 AbstractCegarLoop]: === Iteration 10 === [insertionSortErr0RequiresViolation, insertionSortErr9RequiresViolation, insertionSortErr2RequiresViolation, insertionSortErr5RequiresViolation, insertionSortErr3RequiresViolation, insertionSortErr4RequiresViolation, insertionSortErr8RequiresViolation, insertionSortErr6RequiresViolation, insertionSortErr1RequiresViolation, insertionSortErr7RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:24:28,366 INFO L82 PathProgramCache]: Analyzing trace with hash 2127039869, now seen corresponding path program 1 times [2018-02-02 18:24:28,366 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:24:28,366 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:24:28,367 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:28,367 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:28,367 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:24:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:28,372 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:24:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:28,439 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 18:24:28,439 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-02 18:24:28,444 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:24:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:24:28,461 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 18:24:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:24:28,538 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 18:24:28,538 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2018-02-02 18:24:28,539 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-02 18:24:28,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-02 18:24:28,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-02-02 18:24:28,539 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 18 states. [2018-02-02 18:24:28,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:24:28,811 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2018-02-02 18:24:28,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-02 18:24:28,811 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 29 [2018-02-02 18:24:28,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:24:28,811 INFO L225 Difference]: With dead ends: 71 [2018-02-02 18:24:28,811 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 18:24:28,812 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2018-02-02 18:24:28,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 18:24:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 18:24:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 18:24:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 18:24:28,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-02-02 18:24:28,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:24:28,813 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 18:24:28,813 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-02 18:24:28,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 18:24:28,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 18:24:28,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 06:24:28 BoogieIcfgContainer [2018-02-02 18:24:28,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 18:24:28,818 INFO L168 Benchmark]: Toolchain (without parser) took 3771.54 ms. Allocated memory was 407.9 MB in the beginning and 695.2 MB in the end (delta: 287.3 MB). Free memory was 366.1 MB in the beginning and 559.7 MB in the end (delta: -193.6 MB). Peak memory consumption was 93.7 MB. Max. memory is 5.3 GB. [2018-02-02 18:24:28,819 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 407.9 MB. Free memory is still 371.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 18:24:28,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.97 ms. Allocated memory is still 407.9 MB. Free memory was 364.8 MB in the beginning and 355.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-02-02 18:24:28,820 INFO L168 Benchmark]: Boogie Preprocessor took 28.36 ms. Allocated memory is still 407.9 MB. Free memory was 355.5 MB in the beginning and 352.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 18:24:28,820 INFO L168 Benchmark]: RCFGBuilder took 162.38 ms. Allocated memory is still 407.9 MB. Free memory was 352.9 MB in the beginning and 334.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. [2018-02-02 18:24:28,820 INFO L168 Benchmark]: TraceAbstraction took 3424.84 ms. Allocated memory was 407.9 MB in the beginning and 695.2 MB in the end (delta: 287.3 MB). Free memory was 334.9 MB in the beginning and 559.7 MB in the end (delta: -224.8 MB). Peak memory consumption was 62.5 MB. Max. memory is 5.3 GB. [2018-02-02 18:24:28,821 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 407.9 MB. Free memory is still 371.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 152.97 ms. Allocated memory is still 407.9 MB. Free memory was 364.8 MB in the beginning and 355.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.36 ms. Allocated memory is still 407.9 MB. Free memory was 355.5 MB in the beginning and 352.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 162.38 ms. Allocated memory is still 407.9 MB. Free memory was 352.9 MB in the beginning and 334.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 3424.84 ms. Allocated memory was 407.9 MB in the beginning and 695.2 MB in the end (delta: 287.3 MB). Free memory was 334.9 MB in the beginning and 559.7 MB in the end (delta: -224.8 MB). Peak memory consumption was 62.5 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: 551]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 11 error locations. SAFE Result, 3.3s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 252 SDtfs, 1111 SDslu, 983 SDs, 0 SdLazy, 1167 SolverSat, 174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=9, 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, 10 MinimizatonAttempts, 142 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 309 ConstructedInterpolants, 29 QuantifiedInterpolants, 53730 SizeOfPredicates, 16 NumberOfNonLiveVariables, 395 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 16/32 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/insertionsort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_18-24-28-826.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/insertionsort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_18-24-28-826.csv Received shutdown request...