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_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 15:58:57,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 15:58:57,053 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 15:58:57,066 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 15:58:57,067 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 15:58:57,068 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 15:58:57,069 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 15:58:57,070 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 15:58:57,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 15:58:57,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 15:58:57,074 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 15:58:57,074 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 15:58:57,075 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 15:58:57,076 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 15:58:57,077 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 15:58:57,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 15:58:57,082 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 15:58:57,083 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 15:58:57,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 15:58:57,086 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 15:58:57,088 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 15:58:57,088 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 15:58:57,088 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 15:58:57,089 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 15:58:57,090 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 15:58:57,091 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 15:58:57,091 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 15:58:57,092 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 15:58:57,092 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 15:58:57,092 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 15:58:57,093 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 15:58:57,093 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 15:58:57,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 15:58:57,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 15:58:57,103 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 15:58:57,104 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 15:58:57,104 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 15:58:57,104 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 15:58:57,104 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 15:58:57,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 15:58:57,105 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 15:58:57,105 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 15:58:57,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 15:58:57,106 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 15:58:57,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 15:58:57,106 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 15:58:57,106 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 15:58:57,106 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 15:58:57,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 15:58:57,107 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 15:58:57,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 15:58:57,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 15:58:57,107 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 15:58:57,108 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 15:58:57,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 15:58:57,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:58:57,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 15:58:57,108 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 15:58:57,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 15:58:57,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 15:58:57,109 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 15:58:57,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 15:58:57,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 15:58:57,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 15:58:57,110 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 15:58:57,110 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 15:58:57,111 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 15:58:57,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 15:58:57,157 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 15:58:57,160 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 15:58:57,162 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 15:58:57,162 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 15:58:57,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test10_true-valid-memsafety_true-termination.i [2018-01-24 15:58:57,368 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 15:58:57,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 15:58:57,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 15:58:57,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 15:58:57,383 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 15:58:57,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0aeefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57, skipping insertion in model container [2018-01-24 15:58:57,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,407 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:58:57,459 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:58:57,586 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:58:57,602 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:58:57,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57 WrapperNode [2018-01-24 15:58:57,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 15:58:57,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 15:58:57,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 15:58:57,611 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 15:58:57,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (1/1) ... [2018-01-24 15:58:57,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 15:58:57,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 15:58:57,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 15:58:57,647 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 15:58:57,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (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 15:58:57,696 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 15:58:57,696 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 15:58:57,696 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 15:58:57,696 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_10 [2018-01-24 15:58:57,696 INFO L136 BoogieDeclarations]: Found implementation of procedure free_10 [2018-01-24 15:58:57,696 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 15:58:57,696 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 15:58:57,697 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_10 [2018-01-24 15:58:57,698 INFO L128 BoogieDeclarations]: Found specification of procedure free_10 [2018-01-24 15:58:57,698 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 15:58:57,698 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 15:58:57,698 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 15:58:57,698 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 15:58:58,083 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 15:58:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:58:58 BoogieIcfgContainer [2018-01-24 15:58:58,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 15:58:58,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 15:58:58,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 15:58:58,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 15:58:58,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:58:57" (1/3) ... [2018-01-24 15:58:58,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e046b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:58:58, skipping insertion in model container [2018-01-24 15:58:58,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:58:57" (2/3) ... [2018-01-24 15:58:58,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e046b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:58:58, skipping insertion in model container [2018-01-24 15:58:58,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:58:58" (3/3) ... [2018-01-24 15:58:58,092 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test10_true-valid-memsafety_true-termination.i [2018-01-24 15:58:58,099 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 15:58:58,106 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 39 error locations. [2018-01-24 15:58:58,156 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 15:58:58,156 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 15:58:58,156 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 15:58:58,156 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 15:58:58,156 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 15:58:58,157 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 15:58:58,157 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 15:58:58,157 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 15:58:58,158 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 15:58:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2018-01-24 15:58:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 15:58:58,191 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:58:58,192 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:58:58,192 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]=== [2018-01-24 15:58:58,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1784809794, now seen corresponding path program 1 times [2018-01-24 15:58:58,200 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:58:58,256 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:58:58,256 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:58:58,256 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:58:58,256 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:58:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:58:58,316 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:58:58,395 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 15:58:58,398 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:58:58,398 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 15:58:58,398 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:58:58,402 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:58:58,491 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:58:58,492 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:58:58,495 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2018-01-24 15:58:58,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:58:58,748 INFO L93 Difference]: Finished difference Result 147 states and 166 transitions. [2018-01-24 15:58:58,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:58:58,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-01-24 15:58:58,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:58:58,762 INFO L225 Difference]: With dead ends: 147 [2018-01-24 15:58:58,762 INFO L226 Difference]: Without dead ends: 140 [2018-01-24 15:58:58,766 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 15:58:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-01-24 15:58:58,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 99. [2018-01-24 15:58:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-01-24 15:58:58,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2018-01-24 15:58:58,817 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 16 [2018-01-24 15:58:58,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:58:58,817 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2018-01-24 15:58:58,818 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:58:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2018-01-24 15:58:58,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 15:58:58,819 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:58:58,820 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 15:58:58,820 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]=== [2018-01-24 15:58:58,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1808064800, now seen corresponding path program 1 times [2018-01-24 15:58:58,820 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:58:58,822 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:58:58,822 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:58:58,823 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:58:58,823 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:58:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:58:58,846 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:58:58,908 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 15:58:58,908 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:58:58,908 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 15:58:58,909 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:58:58,910 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 15:58:58,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 15:58:58,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 15:58:58,911 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 6 states. [2018-01-24 15:58:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:58:59,080 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2018-01-24 15:58:59,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 15:58:59,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-01-24 15:58:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:58:59,082 INFO L225 Difference]: With dead ends: 150 [2018-01-24 15:58:59,082 INFO L226 Difference]: Without dead ends: 146 [2018-01-24 15:58:59,083 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 15:58:59,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-01-24 15:58:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2018-01-24 15:58:59,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-01-24 15:58:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2018-01-24 15:58:59,095 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 18 [2018-01-24 15:58:59,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:58:59,095 INFO L432 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2018-01-24 15:58:59,095 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 15:58:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2018-01-24 15:58:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 15:58:59,096 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:58:59,097 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:58:59,097 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]=== [2018-01-24 15:58:59,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1556713239, now seen corresponding path program 1 times [2018-01-24 15:58:59,097 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:58:59,099 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:58:59,099 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:58:59,099 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:58:59,099 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:58:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:58:59,114 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:58:59,169 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 15:58:59,169 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:58:59,169 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 15:58:59,170 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-01-24 15:58:59,173 INFO L201 CegarAbsIntRunner]: [31], [37], [38], [39], [40], [45], [49], [52], [109], [111], [112], [113], [115], [116], [117], [118] [2018-01-24 15:58:59,217 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 15:58:59,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 15:58:59,335 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-24 15:58:59,337 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 15:58:59,349 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-24 15:58:59,418 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 67.92% of their original sizes. [2018-01-24 15:58:59,419 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-24 15:58:59,453 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-24 15:58:59,454 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 15:58:59,454 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-01-24 15:58:59,454 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:58:59,455 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 15:58:59,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 15:58:59,455 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-24 15:58:59,455 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand 7 states. [2018-01-24 15:59:01,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:59:01,558 INFO L93 Difference]: Finished difference Result 185 states and 197 transitions. [2018-01-24 15:59:01,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 15:59:01,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-24 15:59:01,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:59:01,559 INFO L225 Difference]: With dead ends: 185 [2018-01-24 15:59:01,560 INFO L226 Difference]: Without dead ends: 97 [2018-01-24 15:59:01,561 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 15:59:01,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-01-24 15:59:01,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-01-24 15:59:01,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-01-24 15:59:01,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2018-01-24 15:59:01,572 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 19 [2018-01-24 15:59:01,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:59:01,572 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2018-01-24 15:59:01,572 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 15:59:01,573 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2018-01-24 15:59:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-24 15:59:01,573 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:59:01,574 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 15:59:01,574 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]=== [2018-01-24 15:59:01,574 INFO L82 PathProgramCache]: Analyzing trace with hash 256564149, now seen corresponding path program 1 times [2018-01-24 15:59:01,574 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:59:01,576 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:59:01,576 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:59:01,576 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:59:01,576 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:59:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:59:01,592 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:59:01,741 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 15:59:01,741 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:59:01,741 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 15:59:01,741 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-01-24 15:59:01,742 INFO L201 CegarAbsIntRunner]: [31], [34], [35], [36], [37], [38], [39], [40], [45], [49], [52], [109], [111], [112], [113], [115], [116], [117], [118] [2018-01-24 15:59:01,742 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 15:59:01,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 15:59:01,882 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-24 15:59:01,882 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 15:59:01,890 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-24 15:59:01,978 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 76.63% of their original sizes. [2018-01-24 15:59:01,978 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-24 15:59:02,331 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-24 15:59:02,332 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 15:59:02,332 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2018-01-24 15:59:02,332 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:59:02,332 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 15:59:02,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 15:59:02,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-01-24 15:59:02,333 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 14 states. [2018-01-24 15:59:03,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 15:59:03,156 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 15:59:03,160 INFO L168 Benchmark]: Toolchain (without parser) took 5791.14 ms. Allocated memory was 301.5 MB in the beginning and 557.8 MB in the end (delta: 256.4 MB). Free memory was 260.4 MB in the beginning and 375.0 MB in the end (delta: -114.6 MB). Peak memory consumption was 141.8 MB. Max. memory is 5.3 GB. [2018-01-24 15:59:03,161 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 301.5 MB. Free memory is still 266.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:59:03,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.56 ms. Allocated memory is still 301.5 MB. Free memory was 260.4 MB in the beginning and 246.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:59:03,162 INFO L168 Benchmark]: Boogie Preprocessor took 35.67 ms. Allocated memory is still 301.5 MB. Free memory was 246.3 MB in the beginning and 244.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:59:03,162 INFO L168 Benchmark]: RCFGBuilder took 437.89 ms. Allocated memory is still 301.5 MB. Free memory was 244.3 MB in the beginning and 219.4 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 5.3 GB. [2018-01-24 15:59:03,162 INFO L168 Benchmark]: TraceAbstraction took 5073.59 ms. Allocated memory was 301.5 MB in the beginning and 557.8 MB in the end (delta: 256.4 MB). Free memory was 217.4 MB in the beginning and 375.0 MB in the end (delta: -157.6 MB). Peak memory consumption was 98.8 MB. Max. memory is 5.3 GB. [2018-01-24 15:59:03,164 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 301.5 MB. Free memory is still 266.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 234.56 ms. Allocated memory is still 301.5 MB. Free memory was 260.4 MB in the beginning and 246.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.67 ms. Allocated memory is still 301.5 MB. Free memory was 246.3 MB in the beginning and 244.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 437.89 ms. Allocated memory is still 301.5 MB. Free memory was 244.3 MB in the beginning and 219.4 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5073.59 ms. Allocated memory was 301.5 MB in the beginning and 557.8 MB in the end (delta: 256.4 MB). Free memory was 217.4 MB in the beginning and 375.0 MB in the end (delta: -157.6 MB). Peak memory consumption was 98.8 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) : 0.849718 RENAME_VARIABLES(MILLISECONDS) : 0.165073 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.294253 PROJECTAWAY(MILLISECONDS) : 0.095013 ADD_WEAK_EQUALITY(MILLISECONDS) : 2.928807 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.217544 ADD_EQUALITY(MILLISECONDS) : 0.061532 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.017396 #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) : 0.120228 RENAME_VARIABLES(MILLISECONDS) : 0.091316 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.097941 PROJECTAWAY(MILLISECONDS) : 8.039841 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.051329 DISJOIN(MILLISECONDS) : 0.500340 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.111516 ADD_EQUALITY(MILLISECONDS) : 0.012169 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.018210 #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.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_15-59-03-177.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.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_15-59-03-177.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.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_15-59-03-177.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.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-24_15-59-03-177.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.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-24_15-59-03-177.csv Received shutdown request...