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.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test10_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 15:54:05,694 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 15:54:05,696 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 15:54:05,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 15:54:05,712 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 15:54:05,713 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 15:54:05,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 15:54:05,718 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 15:54:05,720 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 15:54:05,721 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 15:54:05,722 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 15:54:05,722 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 15:54:05,723 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 15:54:05,725 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 15:54:05,726 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 15:54:05,728 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 15:54:05,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 15:54:05,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 15:54:05,734 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 15:54:05,735 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 15:54:05,738 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 15:54:05,738 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 15:54:05,738 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 15:54:05,739 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 15:54:05,741 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 15:54:05,742 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 15:54:05,742 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 15:54:05,743 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 15:54:05,743 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 15:54:05,743 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 15:54:05,744 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 15:54:05,744 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.epf [2018-01-24 15:54:05,755 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 15:54:05,755 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 15:54:05,756 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 15:54:05,757 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 15:54:05,757 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 15:54:05,757 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 15:54:05,757 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 15:54:05,758 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 15:54:05,758 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 15:54:05,758 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 15:54:05,759 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 15:54:05,759 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 15:54:05,759 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 15:54:05,759 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 15:54:05,759 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 15:54:05,760 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 15:54:05,760 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 15:54:05,760 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 15:54:05,760 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 15:54:05,760 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 15:54:05,761 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 15:54:05,761 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 15:54:05,761 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 15:54:05,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:54:05,761 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 15:54:05,762 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 15:54:05,762 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 15:54:05,762 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 15:54:05,762 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 15:54:05,762 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 15:54:05,763 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 15:54:05,763 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 15:54:05,763 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 15:54:05,764 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 15:54:05,764 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 15:54:05,819 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 15:54:05,834 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 15:54:05,838 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 15:54:05,841 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 15:54:05,842 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 15:54:05,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test10_false-valid-memtrack_true-termination.i [2018-01-24 15:54:06,027 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 15:54:06,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 15:54:06,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 15:54:06,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 15:54:06,038 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 15:54:06,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42577689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06, skipping insertion in model container [2018-01-24 15:54:06,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,057 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:54:06,108 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:54:06,228 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:54:06,246 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:54:06,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06 WrapperNode [2018-01-24 15:54:06,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 15:54:06,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 15:54:06,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 15:54:06,256 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 15:54:06,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (1/1) ... [2018-01-24 15:54:06,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 15:54:06,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 15:54:06,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 15:54:06,295 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 15:54:06,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (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 15:54:06,352 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 15:54:06,352 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 15:54:06,352 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 15:54:06,352 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_10 [2018-01-24 15:54:06,352 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 15:54:06,352 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 15:54:06,353 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 15:54:06,353 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 15:54:06,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 15:54:06,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 15:54:06,353 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 15:54:06,353 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 15:54:06,353 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 15:54:06,354 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 15:54:06,354 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 15:54:06,354 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_10 [2018-01-24 15:54:06,354 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 15:54:06,354 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 15:54:06,354 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 15:54:06,355 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 15:54:06,701 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 15:54:06,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:54:06 BoogieIcfgContainer [2018-01-24 15:54:06,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 15:54:06,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 15:54:06,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 15:54:06,706 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 15:54:06,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:54:06" (1/3) ... [2018-01-24 15:54:06,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda688e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:54:06, skipping insertion in model container [2018-01-24 15:54:06,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:54:06" (2/3) ... [2018-01-24 15:54:06,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda688e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:54:06, skipping insertion in model container [2018-01-24 15:54:06,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:54:06" (3/3) ... [2018-01-24 15:54:06,710 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test10_false-valid-memtrack_true-termination.i [2018-01-24 15:54:06,717 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 15:54:06,724 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2018-01-24 15:54:06,769 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 15:54:06,769 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 15:54:06,769 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 15:54:06,769 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 15:54:06,769 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 15:54:06,770 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 15:54:06,770 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 15:54:06,770 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 15:54:06,771 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 15:54:06,793 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-01-24 15:54:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 15:54:06,798 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:54:06,799 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:54:06,799 INFO L371 AbstractCegarLoop]: === Iteration 1 === [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]=== [2018-01-24 15:54:06,803 INFO L82 PathProgramCache]: Analyzing trace with hash 178224559, now seen corresponding path program 1 times [2018-01-24 15:54:06,805 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:54:06,851 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:06,852 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:54:06,852 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:06,852 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:54:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:54:06,904 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:54:06,995 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 15:54:06,998 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:54:06,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 15:54:06,998 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:54:07,002 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:54:07,017 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:54:07,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:54:07,021 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states. [2018-01-24 15:54:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:54:07,333 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2018-01-24 15:54:07,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:54:07,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-01-24 15:54:07,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:54:07,347 INFO L225 Difference]: With dead ends: 138 [2018-01-24 15:54:07,347 INFO L226 Difference]: Without dead ends: 131 [2018-01-24 15:54:07,351 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 [2018-01-24 15:54:07,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-01-24 15:54:07,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 82. [2018-01-24 15:54:07,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-01-24 15:54:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2018-01-24 15:54:07,398 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2018-01-24 15:54:07,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:54:07,398 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2018-01-24 15:54:07,398 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:54:07,398 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2018-01-24 15:54:07,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 15:54:07,400 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:54:07,400 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 15:54:07,401 INFO L371 AbstractCegarLoop]: === Iteration 2 === [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]=== [2018-01-24 15:54:07,401 INFO L82 PathProgramCache]: Analyzing trace with hash 892424113, now seen corresponding path program 1 times [2018-01-24 15:54:07,401 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:54:07,404 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:07,404 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:54:07,404 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:07,404 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:54:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:54:07,425 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:54:07,466 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 15:54:07,467 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:54:07,467 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 15:54:07,467 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:54:07,469 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 15:54:07,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 15:54:07,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 15:54:07,470 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 6 states. [2018-01-24 15:54:07,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:54:07,674 INFO L93 Difference]: Finished difference Result 132 states and 148 transitions. [2018-01-24 15:54:07,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 15:54:07,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-01-24 15:54:07,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:54:07,677 INFO L225 Difference]: With dead ends: 132 [2018-01-24 15:54:07,677 INFO L226 Difference]: Without dead ends: 128 [2018-01-24 15:54:07,678 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 15:54:07,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-01-24 15:54:07,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 78. [2018-01-24 15:54:07,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-01-24 15:54:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2018-01-24 15:54:07,690 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 18 [2018-01-24 15:54:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:54:07,691 INFO L432 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2018-01-24 15:54:07,691 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 15:54:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2018-01-24 15:54:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 15:54:07,692 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:54:07,692 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:54:07,692 INFO L371 AbstractCegarLoop]: === Iteration 3 === [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]=== [2018-01-24 15:54:07,692 INFO L82 PathProgramCache]: Analyzing trace with hash 2038882856, now seen corresponding path program 1 times [2018-01-24 15:54:07,692 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:54:07,694 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:07,694 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:54:07,694 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:07,695 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:54:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:54:07,710 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:54:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 15:54:07,782 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:54:07,783 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 15:54:07,783 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-01-24 15:54:07,785 INFO L201 CegarAbsIntRunner]: [16], [22], [23], [24], [25], [30], [34], [37], [93], [95], [96], [97], [99], [100], [101], [102] [2018-01-24 15:54:07,837 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 15:54:07,838 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 15:54:07,959 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-24 15:54:07,961 INFO L268 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 12 variables. [2018-01-24 15:54:07,974 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-24 15:54:08,049 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 67.92% of their original sizes. [2018-01-24 15:54:08,049 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-24 15:54:08,094 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-24 15:54:08,095 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 15:54:08,095 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-01-24 15:54:08,095 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:54:08,096 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 15:54:08,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 15:54:08,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-24 15:54:08,096 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 7 states. [2018-01-24 15:54:09,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:54:09,772 INFO L93 Difference]: Finished difference Result 151 states and 163 transitions. [2018-01-24 15:54:09,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 15:54:09,773 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-24 15:54:09,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:54:09,774 INFO L225 Difference]: With dead ends: 151 [2018-01-24 15:54:09,774 INFO L226 Difference]: Without dead ends: 80 [2018-01-24 15:54:09,775 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 [2018-01-24 15:54:09,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-01-24 15:54:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-01-24 15:54:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-01-24 15:54:09,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2018-01-24 15:54:09,785 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 19 [2018-01-24 15:54:09,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:54:09,786 INFO L432 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2018-01-24 15:54:09,786 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 15:54:09,786 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2018-01-24 15:54:09,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-24 15:54:09,787 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:54:09,787 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:54:09,787 INFO L371 AbstractCegarLoop]: === Iteration 4 === [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]=== [2018-01-24 15:54:09,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1489811686, now seen corresponding path program 1 times [2018-01-24 15:54:09,788 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:54:09,789 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:09,789 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:54:09,789 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:54:09,789 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:54:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:54:09,804 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:54:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:54:09,891 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:54:09,891 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 15:54:09,892 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-01-24 15:54:09,892 INFO L201 CegarAbsIntRunner]: [16], [19], [20], [21], [22], [23], [24], [25], [30], [34], [37], [93], [95], [96], [97], [99], [100], [101], [102] [2018-01-24 15:54:09,893 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 15:54:09,894 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 15:54:10,069 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-24 15:54:10,070 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. [2018-01-24 15:54:10,074 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-24 15:54:10,159 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 76.63% of their original sizes. [2018-01-24 15:54:10,159 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-24 15:54:10,499 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-24 15:54:10,526 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 15:54:10,526 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2018-01-24 15:54:10,526 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:54:10,526 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 15:54:10,527 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 15:54:10,527 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-01-24 15:54:10,527 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 14 states. [2018-01-24 15:54:11,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 15:54:11,184 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) [2018-01-24 15:54:11,187 INFO L168 Benchmark]: Toolchain (without parser) took 5159.72 ms. Allocated memory was 304.1 MB in the beginning and 556.8 MB in the end (delta: 252.7 MB). Free memory was 263.0 MB in the beginning and 430.5 MB in the end (delta: -167.5 MB). Peak memory consumption was 85.2 MB. Max. memory is 5.3 GB. [2018-01-24 15:54:11,188 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:54:11,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.88 ms. Allocated memory is still 304.1 MB. Free memory was 263.0 MB in the beginning and 249.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-24 15:54:11,189 INFO L168 Benchmark]: Boogie Preprocessor took 38.72 ms. Allocated memory is still 304.1 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:54:11,189 INFO L168 Benchmark]: RCFGBuilder took 407.62 ms. Allocated memory is still 304.1 MB. Free memory was 247.9 MB in the beginning and 224.9 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:54:11,190 INFO L168 Benchmark]: TraceAbstraction took 4483.50 ms. Allocated memory was 304.1 MB in the beginning and 556.8 MB in the end (delta: 252.7 MB). Free memory was 223.9 MB in the beginning and 430.5 MB in the end (delta: -206.6 MB). Peak memory consumption was 46.2 MB. Max. memory is 5.3 GB. [2018-01-24 15:54:11,192 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 221.88 ms. Allocated memory is still 304.1 MB. Free memory was 263.0 MB in the beginning and 249.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.72 ms. Allocated memory is still 304.1 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 407.62 ms. Allocated memory is still 304.1 MB. Free memory was 247.9 MB in the beginning and 224.9 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4483.50 ms. Allocated memory was 304.1 MB in the beginning and 556.8 MB in the end (delta: 252.7 MB). Free memory was 223.9 MB in the beginning and 430.5 MB in the end (delta: -206.6 MB). Peak memory consumption was 46.2 MB. 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) : 0.750249 RENAME_VARIABLES(MILLISECONDS) : 0.161149 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.261081 PROJECTAWAY(MILLISECONDS) : 0.019432 ADD_WEAK_EQUALITY(MILLISECONDS) : 3.012415 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.217703 ADD_EQUALITY(MILLISECONDS) : 0.055036 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.011592 #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 : 85 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) : 0.180950 RENAME_VARIABLES(MILLISECONDS) : 0.048938 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.160144 PROJECTAWAY(MILLISECONDS) : 7.161367 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.074330 DISJOIN(MILLISECONDS) : 0.437479 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.071527 ADD_EQUALITY(MILLISECONDS) : 0.011937 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.015460 #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_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_15-54-11-203.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_15-54-11-203.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_15-54-11-203.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-24_15-54-11-203.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test10_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-24_15-54-11-203.csv Received shutdown request...