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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:31:59,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:31:59,380 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:31:59,395 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:31:59,396 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:31:59,397 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:31:59,398 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:31:59,400 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:31:59,402 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:31:59,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:31:59,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:31:59,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:31:59,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:31:59,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:31:59,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:31:59,411 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:31:59,413 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:31:59,415 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:31:59,417 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:31:59,418 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:31:59,420 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 12:31:59,425 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:31:59,426 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:31:59,426 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf [2018-01-24 12:31:59,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:31:59,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:31:59,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:31:59,436 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:31:59,436 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:31:59,436 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:31:59,436 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:31:59,437 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:31:59,437 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:31:59,437 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:31:59,437 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:31:59,437 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:31:59,437 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:31:59,438 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:31:59,438 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:31:59,438 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:31:59,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:31:59,438 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:31:59,438 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:31:59,438 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:31:59,438 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:31:59,439 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:31:59,439 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:31:59,439 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:31:59,439 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:31:59,439 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:31:59,440 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:31:59,440 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:31:59,440 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:31:59,440 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:31:59,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:31:59,440 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:31:59,441 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:31:59,442 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:31:59,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:31:59,490 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:31:59,494 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:31:59,496 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:31:59,496 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:31:59,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_true-valid-memsafety_true-termination.i [2018-01-24 12:31:59,684 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:31:59,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:31:59,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:31:59,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:31:59,698 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:31:59,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d434187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59, skipping insertion in model container [2018-01-24 12:31:59,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,715 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:31:59,765 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:31:59,895 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:31:59,908 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:31:59,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59 WrapperNode [2018-01-24 12:31:59,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:31:59,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:31:59,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:31:59,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:31:59,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... [2018-01-24 12:31:59,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:31:59,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:31:59,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:31:59,954 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:31:59,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (1/1) ... No working directory specified, using /storage/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 [2018-01-24 12:32:00,004 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:32:00,004 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:32:00,004 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 12:32:00,004 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_8 [2018-01-24 12:32:00,004 INFO L136 BoogieDeclarations]: Found implementation of procedure free_8 [2018-01-24 12:32:00,004 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 12:32:00,004 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:32:00,005 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:32:00,005 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:32:00,005 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:32:00,005 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 12:32:00,005 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 12:32:00,005 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 12:32:00,006 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 12:32:00,006 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_8 [2018-01-24 12:32:00,006 INFO L128 BoogieDeclarations]: Found specification of procedure free_8 [2018-01-24 12:32:00,006 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 12:32:00,006 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:32:00,006 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:32:00,007 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:32:00,177 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:32:00,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:32:00 BoogieIcfgContainer [2018-01-24 12:32:00,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:32:00,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:32:00,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:32:00,180 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:32:00,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:31:59" (1/3) ... [2018-01-24 12:32:00,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2536f2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:32:00, skipping insertion in model container [2018-01-24 12:32:00,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:31:59" (2/3) ... [2018-01-24 12:32:00,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2536f2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:32:00, skipping insertion in model container [2018-01-24 12:32:00,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:32:00" (3/3) ... [2018-01-24 12:32:00,183 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test8_true-valid-memsafety_true-termination.i [2018-01-24 12:32:00,190 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:32:00,195 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 12:32:00,238 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:32:00,238 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:32:00,238 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:32:00,238 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:32:00,238 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:32:00,238 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:32:00,238 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:32:00,239 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:32:00,239 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:32:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-01-24 12:32:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:32:00,259 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:00,260 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:32:00,260 INFO L371 AbstractCegarLoop]: === Iteration 1 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:00,266 INFO L82 PathProgramCache]: Analyzing trace with hash 132716426, now seen corresponding path program 1 times [2018-01-24 12:32:00,268 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:00,269 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:00,323 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:00,323 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:00,324 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:00,380 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:00,497 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:00,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:32:00,499 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:32:00,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:32:00,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:32:00,513 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2018-01-24 12:32:00,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:00,677 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-01-24 12:32:00,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:32:00,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-24 12:32:00,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:00,690 INFO L225 Difference]: With dead ends: 42 [2018-01-24 12:32:00,691 INFO L226 Difference]: Without dead ends: 38 [2018-01-24 12:32:00,693 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:32:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-01-24 12:32:00,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-01-24 12:32:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-24 12:32:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-01-24 12:32:00,732 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 18 [2018-01-24 12:32:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:00,732 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-01-24 12:32:00,732 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:32:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-01-24 12:32:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:32:00,733 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:00,733 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:32:00,733 INFO L371 AbstractCegarLoop]: === Iteration 2 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:00,733 INFO L82 PathProgramCache]: Analyzing trace with hash 132716427, now seen corresponding path program 1 times [2018-01-24 12:32:00,733 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:00,734 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:00,735 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:00,736 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:00,736 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:00,757 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:00,826 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:00,826 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:32:00,828 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:32:00,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:32:00,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:32:00,829 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2018-01-24 12:32:00,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:00,908 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-01-24 12:32:00,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:32:00,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-24 12:32:00,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:00,910 INFO L225 Difference]: With dead ends: 41 [2018-01-24 12:32:00,910 INFO L226 Difference]: Without dead ends: 40 [2018-01-24 12:32:00,911 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:32:00,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-24 12:32:00,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-01-24 12:32:00,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-01-24 12:32:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-01-24 12:32:00,921 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 18 [2018-01-24 12:32:00,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:00,922 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-01-24 12:32:00,922 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:32:00,922 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-01-24 12:32:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 12:32:00,923 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:00,923 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:32:00,923 INFO L371 AbstractCegarLoop]: === Iteration 3 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:00,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1026806264, now seen corresponding path program 1 times [2018-01-24 12:32:00,924 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:00,924 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:00,925 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:00,926 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:00,926 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:00,948 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:01,017 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:01,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:32:01,018 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:32:01,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:32:01,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:32:01,018 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 6 states. [2018-01-24 12:32:01,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:01,107 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-01-24 12:32:01,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:32:01,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-01-24 12:32:01,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:01,109 INFO L225 Difference]: With dead ends: 39 [2018-01-24 12:32:01,109 INFO L226 Difference]: Without dead ends: 38 [2018-01-24 12:32:01,110 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:32:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-01-24 12:32:01,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-01-24 12:32:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-01-24 12:32:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-01-24 12:32:01,117 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 20 [2018-01-24 12:32:01,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:01,118 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-01-24 12:32:01,118 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:32:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-01-24 12:32:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 12:32:01,119 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:01,119 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:32:01,120 INFO L371 AbstractCegarLoop]: === Iteration 4 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:01,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1026806263, now seen corresponding path program 1 times [2018-01-24 12:32:01,120 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:01,120 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:01,122 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,122 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:01,122 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:01,140 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:01,201 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:01,201 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:32:01,202 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:32:01,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:32:01,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:32:01,202 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2018-01-24 12:32:01,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:01,296 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-01-24 12:32:01,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:32:01,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-01-24 12:32:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:01,298 INFO L225 Difference]: With dead ends: 41 [2018-01-24 12:32:01,298 INFO L226 Difference]: Without dead ends: 40 [2018-01-24 12:32:01,298 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:32:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-24 12:32:01,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2018-01-24 12:32:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-24 12:32:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-01-24 12:32:01,305 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 20 [2018-01-24 12:32:01,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:01,305 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-01-24 12:32:01,305 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:32:01,305 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-01-24 12:32:01,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 12:32:01,306 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:01,306 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:32:01,307 INFO L371 AbstractCegarLoop]: === Iteration 5 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:01,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1070854066, now seen corresponding path program 1 times [2018-01-24 12:32:01,307 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:01,307 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:01,309 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,309 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:01,309 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:01,321 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:01,365 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:01,365 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:32:01,365 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:32:01,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:32:01,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:32:01,366 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 3 states. [2018-01-24 12:32:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:01,403 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-01-24 12:32:01,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:32:01,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-01-24 12:32:01,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:01,405 INFO L225 Difference]: With dead ends: 40 [2018-01-24 12:32:01,405 INFO L226 Difference]: Without dead ends: 35 [2018-01-24 12:32:01,406 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:32:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-24 12:32:01,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-24 12:32:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-24 12:32:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-01-24 12:32:01,413 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 23 [2018-01-24 12:32:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:01,413 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-01-24 12:32:01,413 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:32:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-01-24 12:32:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 12:32:01,414 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:01,414 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:32:01,414 INFO L371 AbstractCegarLoop]: === Iteration 6 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:01,414 INFO L82 PathProgramCache]: Analyzing trace with hash -980957032, now seen corresponding path program 1 times [2018-01-24 12:32:01,414 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:01,414 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:01,415 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,416 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:01,416 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:01,426 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:01,498 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:01,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:32:01,498 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:32:01,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:32:01,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:32:01,499 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2018-01-24 12:32:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:01,586 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2018-01-24 12:32:01,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:32:01,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 12:32:01,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:01,587 INFO L225 Difference]: With dead ends: 45 [2018-01-24 12:32:01,588 INFO L226 Difference]: Without dead ends: 30 [2018-01-24 12:32:01,588 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:32:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-24 12:32:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2018-01-24 12:32:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-24 12:32:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-01-24 12:32:01,594 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 24 [2018-01-24 12:32:01,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:01,595 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-01-24 12:32:01,595 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:32:01,595 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-01-24 12:32:01,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 12:32:01,596 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:01,596 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-24 12:32:01,596 INFO L371 AbstractCegarLoop]: === Iteration 7 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:01,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1127655280, now seen corresponding path program 1 times [2018-01-24 12:32:01,597 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:01,597 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:01,598 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,598 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:01,598 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:01,610 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:01,676 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:01,676 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 12:32:01,677 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:32:01,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:32:01,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:32:01,678 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 7 states. [2018-01-24 12:32:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:01,787 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-01-24 12:32:01,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:32:01,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-01-24 12:32:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:01,794 INFO L225 Difference]: With dead ends: 34 [2018-01-24 12:32:01,794 INFO L226 Difference]: Without dead ends: 27 [2018-01-24 12:32:01,794 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:32:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-24 12:32:01,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-01-24 12:32:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-24 12:32:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-01-24 12:32:01,799 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 25 [2018-01-24 12:32:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:01,800 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-01-24 12:32:01,800 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:32:01,800 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-01-24 12:32:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 12:32:01,801 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:32:01,801 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-24 12:32:01,801 INFO L371 AbstractCegarLoop]: === Iteration 8 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:32:01,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1553172630, now seen corresponding path program 1 times [2018-01-24 12:32:01,801 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:32:01,801 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:32:01,803 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,803 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:32:01,803 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:32:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:32:01,819 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:32:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:32:02,003 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:32:02,003 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 12:32:02,004 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 12:32:02,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 12:32:02,004 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:32:02,005 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 9 states. [2018-01-24 12:32:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:32:02,202 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-01-24 12:32:02,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:32:02,202 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-24 12:32:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:32:02,203 INFO L225 Difference]: With dead ends: 27 [2018-01-24 12:32:02,203 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 12:32:02,203 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:32:02,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 12:32:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 12:32:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 12:32:02,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 12:32:02,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-01-24 12:32:02,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:32:02,204 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 12:32:02,204 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 12:32:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 12:32:02,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 12:32:02,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 12:32:02,461 INFO L401 ceAbstractionStarter]: For program point L1441''(line 1441) no Hoare annotation was computed. [2018-01-24 12:32:02,461 INFO L401 ceAbstractionStarter]: For program point free_8Err1RequiresViolation(lines 1 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,461 INFO L401 ceAbstractionStarter]: For program point free_8Err0RequiresViolation(lines 1 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,461 INFO L397 ceAbstractionStarter]: At program point free_8ENTRY(lines 1440 1442) the Hoare annotation is: (or (let ((.cse0 (not (= 0 ~a8.offset)))) (and (or .cse0 (not (= (select |old(#valid)| ~a8.base) 1))) (or .cse0 (not (= 0 ~a8.base))))) (= |#valid| |old(#valid)|)) [2018-01-24 12:32:02,461 INFO L401 ceAbstractionStarter]: For program point free_8EXIT(lines 1440 1442) no Hoare annotation was computed. [2018-01-24 12:32:02,461 INFO L401 ceAbstractionStarter]: For program point L1441(line 1441) no Hoare annotation was computed. [2018-01-24 12:32:02,462 INFO L397 ceAbstractionStarter]: At program point ldv_mallocENTRY(lines 1072 1078) the Hoare annotation is: (or (not (= 0 ~a8.offset)) (not (= 0 ~a8.base)) (= |#valid| |old(#valid)|)) [2018-01-24 12:32:02,462 INFO L401 ceAbstractionStarter]: For program point L1073(lines 1073 1077) no Hoare annotation was computed. [2018-01-24 12:32:02,462 INFO L401 ceAbstractionStarter]: For program point L1074'(line 1074) no Hoare annotation was computed. [2018-01-24 12:32:02,462 INFO L401 ceAbstractionStarter]: For program point ldv_mallocEXIT(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 12:32:02,462 INFO L401 ceAbstractionStarter]: For program point ldv_mallocFINAL(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 12:32:02,462 INFO L401 ceAbstractionStarter]: For program point L1074(line 1074) no Hoare annotation was computed. [2018-01-24 12:32:02,462 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,462 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 1452) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:32:02,463 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,463 INFO L397 ceAbstractionStarter]: At program point alloc_8ENTRY(lines 1436 1438) the Hoare annotation is: (or (not (= 0 |old(~a8.offset)|)) (not (= 0 |old(~a8.base)|)) (and (= ~a8.offset 0) (= |#valid| |old(#valid)|) (= 0 ~a8.base))) [2018-01-24 12:32:02,463 INFO L401 ceAbstractionStarter]: For program point alloc_8EXIT(lines 1436 1438) no Hoare annotation was computed. [2018-01-24 12:32:02,463 INFO L401 ceAbstractionStarter]: For program point L1437(line 1437) no Hoare annotation was computed. [2018-01-24 12:32:02,463 INFO L401 ceAbstractionStarter]: For program point alloc_8FINAL(lines 1436 1438) no Hoare annotation was computed. [2018-01-24 12:32:02,464 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 1452) the Hoare annotation is: true [2018-01-24 12:32:02,464 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,464 INFO L397 ceAbstractionStarter]: At program point L1(lines 1 1452) the Hoare annotation is: (and (= ~a8.offset 0) (= 0 ~a8.base)) [2018-01-24 12:32:02,464 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,464 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 1450 1452) the Hoare annotation is: (or (not (= 0 |old(~a8.offset)|)) (not (= 0 |old(~a8.base)|)) (and (= ~a8.offset 0) (= |#valid| |old(#valid)|) (= 0 ~a8.base))) [2018-01-24 12:32:02,464 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 1450 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,464 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 1450 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,465 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 1450 1452) no Hoare annotation was computed. [2018-01-24 12:32:02,465 INFO L397 ceAbstractionStarter]: At program point entry_pointENTRY(lines 1444 1448) the Hoare annotation is: (or (not (= 0 |old(~a8.offset)|)) (not (= 0 |old(~a8.base)|)) (and (= ~a8.offset 0) (= |#valid| |old(#valid)|) (= 0 ~a8.base))) [2018-01-24 12:32:02,465 INFO L401 ceAbstractionStarter]: For program point entry_pointFINAL(lines 1444 1448) no Hoare annotation was computed. [2018-01-24 12:32:02,465 INFO L397 ceAbstractionStarter]: At program point L1445(line 1445) the Hoare annotation is: (let ((.cse0 (= 0 ~a8.base))) (let ((.cse1 (let ((.cse3 (= ~a8.offset 0))) (or (and .cse3 (= 1 (select |#valid| ~a8.base))) (and .cse3 .cse0))))) (or (not (= 0 |old(~a8.offset)|)) (not (= 0 |old(~a8.base)|)) (and (= |#valid| |old(#valid)|) .cse0 .cse1) (let ((.cse2 (select |old(#valid)| ~a8.base))) (and (= (store |#valid| ~a8.base .cse2) |old(#valid)|) (not .cse0) .cse1 (= 0 .cse2)))))) [2018-01-24 12:32:02,465 INFO L401 ceAbstractionStarter]: For program point L1446(line 1446) no Hoare annotation was computed. [2018-01-24 12:32:02,465 INFO L401 ceAbstractionStarter]: For program point entry_pointEXIT(lines 1444 1448) no Hoare annotation was computed. [2018-01-24 12:32:02,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 12:32:02 BoogieIcfgContainer [2018-01-24 12:32:02,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 12:32:02,471 INFO L168 Benchmark]: Toolchain (without parser) took 2786.21 ms. Allocated memory was 298.8 MB in the beginning and 470.3 MB in the end (delta: 171.4 MB). Free memory was 255.8 MB in the beginning and 394.8 MB in the end (delta: -139.1 MB). Peak memory consumption was 32.4 MB. Max. memory is 5.3 GB. [2018-01-24 12:32:02,472 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 298.8 MB. Free memory is still 262.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:32:02,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.38 ms. Allocated memory is still 298.8 MB. Free memory was 255.8 MB in the beginning and 243.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. [2018-01-24 12:32:02,472 INFO L168 Benchmark]: Boogie Preprocessor took 39.47 ms. Allocated memory is still 298.8 MB. Free memory was 243.5 MB in the beginning and 241.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:32:02,473 INFO L168 Benchmark]: RCFGBuilder took 223.94 ms. Allocated memory is still 298.8 MB. Free memory was 241.5 MB in the beginning and 227.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:32:02,473 INFO L168 Benchmark]: TraceAbstraction took 2290.88 ms. Allocated memory was 298.8 MB in the beginning and 470.3 MB in the end (delta: 171.4 MB). Free memory was 227.5 MB in the beginning and 394.8 MB in the end (delta: -167.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 5.3 GB. [2018-01-24 12:32:02,474 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 298.8 MB. Free memory is still 262.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 222.38 ms. Allocated memory is still 298.8 MB. Free memory was 255.8 MB in the beginning and 243.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 39.47 ms. Allocated memory is still 298.8 MB. Free memory was 243.5 MB in the beginning and 241.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 223.94 ms. Allocated memory is still 298.8 MB. Free memory was 241.5 MB in the beginning and 227.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2290.88 ms. Allocated memory was 298.8 MB in the beginning and 470.3 MB in the end (delta: 171.4 MB). Free memory was 227.5 MB in the beginning and 394.8 MB in the end (delta: -167.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1450]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 32 locations, 3 error locations. SAFE Result, 2.2s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 207 SDtfs, 131 SDslu, 486 SDs, 0 SdLazy, 274 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 11 NumberOfFragments, 173 HoareAnnotationTreeSize, 10 FomulaSimplifications, 28 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 64 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 12081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test8_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-32-02-480.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test8_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_12-32-02-480.csv Received shutdown request...