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_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test10_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 00:07:14,242 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 00:07:14,243 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 00:07:14,258 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 00:07:14,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 00:07:14,259 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 00:07:14,259 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 00:07:14,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 00:07:14,262 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 00:07:14,263 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 00:07:14,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 00:07:14,264 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 00:07:14,264 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 00:07:14,265 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 00:07:14,266 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 00:07:14,268 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 00:07:14,270 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 00:07:14,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 00:07:14,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 00:07:14,275 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 00:07:14,277 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 00:07:14,282 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 00:07:14,283 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 00:07:14,284 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-25 00:07:14,293 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 00:07:14,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 00:07:14,294 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 00:07:14,295 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 00:07:14,295 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 00:07:14,295 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 00:07:14,295 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 00:07:14,295 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 00:07:14,296 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 00:07:14,296 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 00:07:14,296 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 00:07:14,297 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 00:07:14,297 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 00:07:14,297 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 00:07:14,297 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 00:07:14,297 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 00:07:14,297 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 00:07:14,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 00:07:14,298 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 00:07:14,298 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 00:07:14,298 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 00:07:14,298 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 00:07:14,299 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 00:07:14,299 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 00:07:14,299 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 00:07:14,299 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 00:07:14,299 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 00:07:14,300 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 00:07:14,300 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 00:07:14,300 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 00:07:14,300 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 00:07:14,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 00:07:14,300 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 00:07:14,301 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 00:07:14,301 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 00:07:14,302 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 00:07:14,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 00:07:14,347 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 00:07:14,350 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 00:07:14,351 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 00:07:14,351 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 00:07:14,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test10_true-valid-memsafety_true-termination.i [2018-01-25 00:07:14,532 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 00:07:14,539 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 00:07:14,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 00:07:14,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 00:07:14,548 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 00:07:14,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14, skipping insertion in model container [2018-01-25 00:07:14,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,572 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 00:07:14,624 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 00:07:14,735 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 00:07:14,754 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 00:07:14,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14 WrapperNode [2018-01-25 00:07:14,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 00:07:14,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 00:07:14,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 00:07:14,764 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 00:07:14,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (1/1) ... [2018-01-25 00:07:14,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 00:07:14,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 00:07:14,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 00:07:14,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 00:07:14,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (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 [2018-01-25 00:07:14,857 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 00:07:14,857 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 00:07:14,857 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 00:07:14,857 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_10 [2018-01-25 00:07:14,857 INFO L136 BoogieDeclarations]: Found implementation of procedure free_10 [2018-01-25 00:07:14,857 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 00:07:14,858 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 00:07:14,858 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 00:07:14,858 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 00:07:14,858 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 00:07:14,858 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 00:07:14,858 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 00:07:14,859 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 00:07:14,859 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 00:07:14,859 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 00:07:14,859 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 00:07:14,859 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_10 [2018-01-25 00:07:14,859 INFO L128 BoogieDeclarations]: Found specification of procedure free_10 [2018-01-25 00:07:14,860 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 00:07:14,860 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 00:07:14,860 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 00:07:14,860 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 00:07:15,238 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 00:07:15,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 12:07:15 BoogieIcfgContainer [2018-01-25 00:07:15,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 00:07:15,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 00:07:15,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 00:07:15,241 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 00:07:15,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 12:07:14" (1/3) ... [2018-01-25 00:07:15,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddc4082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 12:07:15, skipping insertion in model container [2018-01-25 00:07:15,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:07:14" (2/3) ... [2018-01-25 00:07:15,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddc4082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 12:07:15, skipping insertion in model container [2018-01-25 00:07:15,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 12:07:15" (3/3) ... [2018-01-25 00:07:15,245 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test10_true-valid-memsafety_true-termination.i [2018-01-25 00:07:15,255 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 00:07:15,263 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 39 error locations. [2018-01-25 00:07:15,302 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 00:07:15,302 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 00:07:15,303 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 00:07:15,303 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 00:07:15,303 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 00:07:15,303 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 00:07:15,303 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 00:07:15,303 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 00:07:15,304 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 00:07:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2018-01-25 00:07:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 00:07:15,334 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:07:15,334 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 00:07:15,335 INFO L371 AbstractCegarLoop]: === Iteration 1 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-01-25 00:07:15,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1784809794, now seen corresponding path program 1 times [2018-01-25 00:07:15,340 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:07:15,387 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:15,388 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:07:15,388 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:15,388 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:07:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:07:15,446 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:07:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:07:15,533 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:07:15,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 00:07:15,534 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:07:15,538 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 00:07:15,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 00:07:15,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 00:07:15,554 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2018-01-25 00:07:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:07:15,855 INFO L93 Difference]: Finished difference Result 147 states and 166 transitions. [2018-01-25 00:07:15,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 00:07:15,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-01-25 00:07:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:07:15,872 INFO L225 Difference]: With dead ends: 147 [2018-01-25 00:07:15,872 INFO L226 Difference]: Without dead ends: 140 [2018-01-25 00:07:15,875 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 00:07:15,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-01-25 00:07:15,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 99. [2018-01-25 00:07:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-01-25 00:07:15,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2018-01-25 00:07:15,921 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 16 [2018-01-25 00:07:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:07:15,921 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2018-01-25 00:07:15,921 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 00:07:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2018-01-25 00:07:15,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-25 00:07:15,923 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:07:15,924 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 00:07:15,924 INFO L371 AbstractCegarLoop]: === Iteration 2 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-01-25 00:07:15,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1808064800, now seen corresponding path program 1 times [2018-01-25 00:07:15,924 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:07:15,926 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:15,927 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:07:15,927 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:15,927 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:07:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:07:15,949 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:07:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:07:16,016 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:07:16,016 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 00:07:16,016 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:07:16,018 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 00:07:16,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 00:07:16,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 00:07:16,019 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 6 states. [2018-01-25 00:07:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:07:16,187 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2018-01-25 00:07:16,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 00:07:16,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-01-25 00:07:16,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:07:16,190 INFO L225 Difference]: With dead ends: 150 [2018-01-25 00:07:16,191 INFO L226 Difference]: Without dead ends: 146 [2018-01-25 00:07:16,192 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 [2018-01-25 00:07:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-01-25 00:07:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2018-01-25 00:07:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-01-25 00:07:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2018-01-25 00:07:16,205 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 18 [2018-01-25 00:07:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:07:16,205 INFO L432 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2018-01-25 00:07:16,205 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 00:07:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2018-01-25 00:07:16,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 00:07:16,206 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:07:16,206 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 00:07:16,207 INFO L371 AbstractCegarLoop]: === Iteration 3 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-01-25 00:07:16,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1556713239, now seen corresponding path program 1 times [2018-01-25 00:07:16,207 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:07:16,209 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:16,209 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:07:16,209 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:16,209 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:07:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:07:16,223 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:07:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-25 00:07:16,272 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 00:07:16,272 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 00:07:16,273 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-01-25 00:07:16,275 INFO L201 CegarAbsIntRunner]: [31], [37], [38], [39], [40], [45], [49], [52], [109], [111], [112], [113], [115], [116], [117], [118] [2018-01-25 00:07:16,320 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 00:07:16,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 00:07:16,445 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-25 00:07:16,446 INFO L268 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 12 variables. [2018-01-25 00:07:16,455 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-25 00:07:16,539 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 67.92% of their original sizes. [2018-01-25 00:07:16,539 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-25 00:07:16,579 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-25 00:07:16,580 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-25 00:07:16,580 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-01-25 00:07:16,580 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:07:16,581 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 00:07:16,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 00:07:16,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-25 00:07:16,582 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand 7 states. [2018-01-25 00:07:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:07:24,922 INFO L93 Difference]: Finished difference Result 185 states and 197 transitions. [2018-01-25 00:07:24,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 00:07:24,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-25 00:07:24,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:07:24,958 INFO L225 Difference]: With dead ends: 185 [2018-01-25 00:07:24,958 INFO L226 Difference]: Without dead ends: 97 [2018-01-25 00:07:24,959 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-01-25 00:07:24,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-01-25 00:07:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-01-25 00:07:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-01-25 00:07:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2018-01-25 00:07:24,972 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 19 [2018-01-25 00:07:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:07:24,972 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2018-01-25 00:07:24,972 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 00:07:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2018-01-25 00:07:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-25 00:07:24,973 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:07:24,974 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 00:07:24,974 INFO L371 AbstractCegarLoop]: === Iteration 4 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-01-25 00:07:24,974 INFO L82 PathProgramCache]: Analyzing trace with hash 256564149, now seen corresponding path program 1 times [2018-01-25 00:07:24,974 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:07:24,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:24,976 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:07:24,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:07:24,976 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:07:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:07:24,992 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:07:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:07:25,050 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 00:07:25,050 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 00:07:25,050 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-01-25 00:07:25,051 INFO L201 CegarAbsIntRunner]: [31], [34], [35], [36], [37], [38], [39], [40], [45], [49], [52], [109], [111], [112], [113], [115], [116], [117], [118] [2018-01-25 00:07:25,051 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 00:07:25,052 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 00:07:25,686 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-25 00:07:25,686 INFO L268 AbstractInterpreter]: Visited 19 different actions 32 times. Merged at 5 different actions 7 times. Never widened. Never found a fixpoint. Largest state had 15 variables. [2018-01-25 00:07:25,689 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-25 00:07:26,197 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 76.63% of their original sizes. [2018-01-25 00:07:26,197 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-25 00:07:26,383 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-25 00:07:26,383 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-25 00:07:26,383 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2018-01-25 00:07:26,383 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:07:26,384 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-25 00:07:26,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-25 00:07:26,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-01-25 00:07:26,384 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 14 states. [2018-01-25 00:07:27,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 00:07:27,085 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCongruenceClosure.(WeqCongruenceClosure.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCcManager.copyWeqCc(WeqCcManager.java:1327) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCcManager.isStrongerThan(WeqCcManager.java:582) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.EqConstraint.isStrongerThan(EqConstraint.java:283) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqState.isSubsetOf(EqState.java:199) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqState.isSubsetOf(EqState.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.getMaximalElements(DisjunctiveAbstractState.java:564) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.crossProduct(DisjunctiveAbstractState.java:407) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.intersect(DisjunctiveAbstractState.java:291) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntPredicateUnifier.lambda$3(CegarAbsIntRunner.java:684) at java.util.stream.ReduceOps$2ReducingSink.accept(ReduceOps.java:123) at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1548) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:479) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntPredicateUnifier.getOrConstructPredicateForConjunction(CegarAbsIntRunner.java:684) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1054) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:956) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:185) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:552) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:522) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-25 00:07:27,088 INFO L168 Benchmark]: Toolchain (without parser) took 12555.41 ms. Allocated memory was 302.5 MB in the beginning and 1.0 GB in the end (delta: 735.1 MB). Free memory was 261.4 MB in the beginning and 981.8 MB in the end (delta: -720.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. [2018-01-25 00:07:27,089 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.5 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 00:07:27,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.25 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 247.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-25 00:07:27,090 INFO L168 Benchmark]: Boogie Preprocessor took 37.67 ms. Allocated memory is still 302.5 MB. Free memory was 247.4 MB in the beginning and 245.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 00:07:27,090 INFO L168 Benchmark]: RCFGBuilder took 436.57 ms. Allocated memory is still 302.5 MB. Free memory was 245.4 MB in the beginning and 220.3 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. [2018-01-25 00:07:27,090 INFO L168 Benchmark]: TraceAbstraction took 11848.13 ms. Allocated memory was 302.5 MB in the beginning and 1.0 GB in the end (delta: 735.1 MB). Free memory was 220.3 MB in the beginning and 981.9 MB in the end (delta: -761.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 00:07:27,092 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.5 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 223.25 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 247.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.67 ms. Allocated memory is still 302.5 MB. Free memory was 247.4 MB in the beginning and 245.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 436.57 ms. Allocated memory is still 302.5 MB. Free memory was 245.4 MB in the beginning and 220.3 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 11848.13 ms. Allocated memory was 302.5 MB in the beginning and 1.0 GB in the end (delta: 735.1 MB). Free memory was 220.3 MB in the beginning and 981.9 MB in the end (delta: -761.6 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 12 LocStat_MAX_WEQGRAPH_SIZE : 1 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 57 LocStat_NO_SUPPORTING_DISEQUALITIES : 0 LocStat_NO_DISJUNCTIONS : -24 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 21 TransStat_MAX_WEQGRAPH_SIZE : 1 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 24 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 22 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.815307 RENAME_VARIABLES(MILLISECONDS) : 0.168391 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.324613 PROJECTAWAY(MILLISECONDS) : 0.029928 ADD_WEAK_EQUALITY(MILLISECONDS) : 2.833033 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.210756 ADD_EQUALITY(MILLISECONDS) : 0.051286 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.016394 #CONJOIN_DISJUNCTIVE : 20 #RENAME_VARIABLES : 41 #UNFREEZE : 0 #CONJOIN : 42 #PROJECTAWAY : 42 #ADD_WEAK_EQUALITY : 1 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 40 #ADD_EQUALITY : 24 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 2 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 16 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 82 LocStat_NO_SUPPORTING_DISEQUALITIES : 8 LocStat_NO_DISJUNCTIONS : -32 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 27 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 39 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 28 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.077808 RENAME_VARIABLES(MILLISECONDS) : 0.040979 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.063457 PROJECTAWAY(MILLISECONDS) : 117.821317 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.060663 DISJOIN(MILLISECONDS) : 0.690817 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.053298 ADD_EQUALITY(MILLISECONDS) : 0.009340 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012567 #CONJOIN_DISJUNCTIVE : 55 #RENAME_VARIABLES : 112 #UNFREEZE : 0 #CONJOIN : 104 #PROJECTAWAY : 91 #ADD_WEAK_EQUALITY : 3 #DISJOIN : 13 #RENAME_VARIABLES_DISJUNCTIVE : 109 #ADD_EQUALITY : 39 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCongruenceClosure.(WeqCongruenceClosure.java:157) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_00-07-27-102.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-25_00-07-27-102.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_00-07-27-102.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-25_00-07-27-102.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-25_00-07-27-102.csv Received shutdown request...