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_smtcomp.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test4_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 06:11:36,095 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 06:11:36,097 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 06:11:36,109 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 06:11:36,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 06:11:36,109 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 06:11:36,110 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 06:11:36,112 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 06:11:36,114 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 06:11:36,115 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 06:11:36,116 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 06:11:36,116 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 06:11:36,117 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 06:11:36,118 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 06:11:36,119 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 06:11:36,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 06:11:36,124 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 06:11:36,126 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 06:11:36,127 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 06:11:36,128 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 06:11:36,130 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 06:11:36,131 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 06:11:36,131 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 06:11:36,132 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 06:11:36,132 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 06:11:36,134 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 06:11:36,134 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 06:11:36,134 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 06:11:36,135 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 06:11:36,135 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 06:11:36,135 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 06:11:36,136 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_smtcomp.epf [2018-01-25 06:11:36,144 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 06:11:36,144 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 06:11:36,145 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 06:11:36,145 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 06:11:36,145 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 06:11:36,145 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 06:11:36,145 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 06:11:36,145 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 06:11:36,146 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 06:11:36,146 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 06:11:36,146 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 06:11:36,146 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 06:11:36,146 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 06:11:36,147 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 06:11:36,147 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 06:11:36,147 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 06:11:36,147 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 06:11:36,147 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 06:11:36,147 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 06:11:36,147 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 06:11:36,147 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 06:11:36,148 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 06:11:36,148 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 06:11:36,148 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 06:11:36,148 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 06:11:36,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 06:11:36,149 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 06:11:36,150 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 06:11:36,150 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 06:11:36,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 06:11:36,193 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 06:11:36,196 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 06:11:36,197 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 06:11:36,198 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 06:11:36,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test4_true-valid-memsafety_true-termination.i [2018-01-25 06:11:36,382 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 06:11:36,388 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 06:11:36,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 06:11:36,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 06:11:36,393 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 06:11:36,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619f28b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36, skipping insertion in model container [2018-01-25 06:11:36,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,411 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:11:36,457 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:11:36,568 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:11:36,583 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:11:36,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36 WrapperNode [2018-01-25 06:11:36,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 06:11:36,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 06:11:36,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 06:11:36,592 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 06:11:36,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... [2018-01-25 06:11:36,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 06:11:36,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 06:11:36,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 06:11:36,625 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 06:11:36,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 06:11:36,682 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 06:11:36,683 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 06:11:36,683 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 06:11:36,683 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 06:11:36,683 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 06:11:36,683 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 06:11:36,683 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 06:11:36,684 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 06:11:36,684 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 06:11:36,684 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 06:11:36,684 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 06:11:36,684 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 06:11:36,684 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 06:11:36,684 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 06:11:36,685 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 06:11:36,685 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 06:11:36,834 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 06:11:36,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:11:36 BoogieIcfgContainer [2018-01-25 06:11:36,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 06:11:36,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 06:11:36,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 06:11:36,837 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 06:11:36,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 06:11:36" (1/3) ... [2018-01-25 06:11:36,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1ee1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:11:36, skipping insertion in model container [2018-01-25 06:11:36,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:11:36" (2/3) ... [2018-01-25 06:11:36,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1ee1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:11:36, skipping insertion in model container [2018-01-25 06:11:36,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:11:36" (3/3) ... [2018-01-25 06:11:36,841 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test4_true-valid-memsafety_true-termination.i [2018-01-25 06:11:36,848 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 06:11:36,853 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-25 06:11:36,896 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 06:11:36,897 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 06:11:36,897 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 06:11:36,897 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 06:11:36,897 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 06:11:36,897 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 06:11:36,897 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 06:11:36,897 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 06:11:36,898 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 06:11:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-25 06:11:36,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 06:11:36,918 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:11:36,919 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:11:36,919 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 06:11:36,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1042309263, now seen corresponding path program 1 times [2018-01-25 06:11:36,925 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:11:36,977 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:36,978 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:11:36,978 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:36,978 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:11:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:11:37,024 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:11:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:11:37,113 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:11:37,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 06:11:37,114 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:11:37,117 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 06:11:37,131 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 06:11:37,131 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 06:11:37,134 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-01-25 06:11:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:11:37,294 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-01-25 06:11:37,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 06:11:37,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-01-25 06:11:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:11:37,306 INFO L225 Difference]: With dead ends: 43 [2018-01-25 06:11:37,306 INFO L226 Difference]: Without dead ends: 36 [2018-01-25 06:11:37,309 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 06:11:37,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-25 06:11:37,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2018-01-25 06:11:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-25 06:11:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-01-25 06:11:37,345 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 16 [2018-01-25 06:11:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:11:37,345 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-01-25 06:11:37,346 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 06:11:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-01-25 06:11:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-25 06:11:37,348 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:11:37,348 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:11:37,348 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 06:11:37,348 INFO L82 PathProgramCache]: Analyzing trace with hash -96589069, now seen corresponding path program 1 times [2018-01-25 06:11:37,348 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:11:37,350 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,350 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:11:37,350 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,351 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:11:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:11:37,371 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:11:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:11:37,434 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:11:37,434 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 06:11:37,434 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:11:37,436 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 06:11:37,436 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 06:11:37,436 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 06:11:37,436 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 6 states. [2018-01-25 06:11:37,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:11:37,526 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2018-01-25 06:11:37,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 06:11:37,527 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-01-25 06:11:37,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:11:37,528 INFO L225 Difference]: With dead ends: 44 [2018-01-25 06:11:37,528 INFO L226 Difference]: Without dead ends: 40 [2018-01-25 06:11:37,529 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 06:11:37,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-25 06:11:37,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2018-01-25 06:11:37,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-25 06:11:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-01-25 06:11:37,536 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 18 [2018-01-25 06:11:37,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:11:37,537 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-01-25 06:11:37,537 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 06:11:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-01-25 06:11:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-25 06:11:37,539 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:11:37,539 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:11:37,539 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 06:11:37,539 INFO L82 PathProgramCache]: Analyzing trace with hash 220833638, now seen corresponding path program 1 times [2018-01-25 06:11:37,540 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:11:37,541 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,541 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:11:37,542 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,542 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:11:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:11:37,559 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:11:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-25 06:11:37,622 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:11:37,622 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 06:11:37,622 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:11:37,622 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 06:11:37,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 06:11:37,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:11:37,623 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 5 states. [2018-01-25 06:11:37,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:11:37,639 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-01-25 06:11:37,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 06:11:37,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-25 06:11:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:11:37,641 INFO L225 Difference]: With dead ends: 33 [2018-01-25 06:11:37,641 INFO L226 Difference]: Without dead ends: 32 [2018-01-25 06:11:37,641 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:11:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-01-25 06:11:37,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-01-25 06:11:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-25 06:11:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-01-25 06:11:37,648 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 20 [2018-01-25 06:11:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:11:37,648 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-01-25 06:11:37,648 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 06:11:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-01-25 06:11:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-25 06:11:37,649 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:11:37,650 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:11:37,650 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 06:11:37,650 INFO L82 PathProgramCache]: Analyzing trace with hash 220833639, now seen corresponding path program 1 times [2018-01-25 06:11:37,650 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:11:37,652 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,652 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:11:37,652 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,652 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:11:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:11:37,668 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:11:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-25 06:11:37,711 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:11:37,711 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 06:11:37,711 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:11:37,711 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 06:11:37,712 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 06:11:37,712 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:11:37,712 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 5 states. [2018-01-25 06:11:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:11:37,729 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2018-01-25 06:11:37,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 06:11:37,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-25 06:11:37,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:11:37,730 INFO L225 Difference]: With dead ends: 37 [2018-01-25 06:11:37,731 INFO L226 Difference]: Without dead ends: 36 [2018-01-25 06:11:37,731 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:11:37,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-25 06:11:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2018-01-25 06:11:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-25 06:11:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-01-25 06:11:37,737 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2018-01-25 06:11:37,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:11:37,737 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-01-25 06:11:37,738 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 06:11:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-01-25 06:11:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-25 06:11:37,739 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:11:37,739 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:11:37,739 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 06:11:37,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1744091818, now seen corresponding path program 1 times [2018-01-25 06:11:37,739 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:11:37,741 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,741 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:11:37,741 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:37,741 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:11:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:11:37,755 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:11:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-25 06:11:37,819 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:11:37,820 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:11:37,821 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-01-25 06:11:37,822 INFO L201 CegarAbsIntRunner]: [0], [6], [7], [8], [9], [17], [20], [22], [23], [27], [33], [34], [35], [37], [39], [40], [41], [42] [2018-01-25 06:11:37,868 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:11:37,868 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 06:11:37,997 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-25 06:11:37,999 INFO L268 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 14 variables. [2018-01-25 06:11:38,009 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-25 06:11:38,081 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 67.92% of their original sizes. [2018-01-25 06:11:38,081 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-25 06:11:38,118 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-25 06:11:38,119 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-25 06:11:38,119 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-01-25 06:11:38,119 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:11:38,120 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 06:11:38,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 06:11:38,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-25 06:11:38,120 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 7 states. [2018-01-25 06:11:38,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:11:38,742 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2018-01-25 06:11:38,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 06:11:38,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-01-25 06:11:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:11:38,743 INFO L225 Difference]: With dead ends: 55 [2018-01-25 06:11:38,743 INFO L226 Difference]: Without dead ends: 31 [2018-01-25 06:11:38,744 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-01-25 06:11:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-01-25 06:11:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-01-25 06:11:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-25 06:11:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-01-25 06:11:38,750 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 21 [2018-01-25 06:11:38,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:11:38,750 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-01-25 06:11:38,750 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 06:11:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-01-25 06:11:38,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 06:11:38,751 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:11:38,752 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:11:38,752 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 06:11:38,752 INFO L82 PathProgramCache]: Analyzing trace with hash -102655212, now seen corresponding path program 1 times [2018-01-25 06:11:38,752 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:11:38,753 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:38,753 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:11:38,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:38,754 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:11:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:11:38,769 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:11:38,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-25 06:11:38,833 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:11:38,833 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:11:38,834 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-25 06:11:38,834 INFO L201 CegarAbsIntRunner]: [0], [3], [4], [5], [6], [7], [8], [9], [17], [20], [22], [23], [27], [33], [34], [35], [37], [39], [40], [41], [42] [2018-01-25 06:11:38,835 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:11:38,835 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 06:11:39,060 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-25 06:11:39,060 INFO L268 AbstractInterpreter]: Visited 21 different actions 36 times. Merged at 7 different actions 9 times. Never widened. Never found a fixpoint. Largest state had 16 variables. [2018-01-25 06:11:39,068 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-25 06:11:39,199 INFO L232 lantSequenceWeakener]: Weakened 22 states. On average, predicates are now at 70.23% of their original sizes. [2018-01-25 06:11:39,199 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-25 06:11:39,475 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-25 06:11:39,475 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-25 06:11:39,475 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 16 [2018-01-25 06:11:39,475 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:11:39,476 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-25 06:11:39,476 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-25 06:11:39,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-01-25 06:11:39,476 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 13 states. [2018-01-25 06:11:40,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:11:40,974 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-01-25 06:11:40,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 06:11:40,975 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-01-25 06:11:40,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:11:40,976 INFO L225 Difference]: With dead ends: 31 [2018-01-25 06:11:40,976 INFO L226 Difference]: Without dead ends: 28 [2018-01-25 06:11:40,976 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-01-25 06:11:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-01-25 06:11:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-01-25 06:11:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-01-25 06:11:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-01-25 06:11:40,982 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2018-01-25 06:11:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:11:40,982 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-01-25 06:11:40,982 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-25 06:11:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-01-25 06:11:40,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 06:11:40,983 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:11:40,983 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:11:40,983 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 06:11:40,984 INFO L82 PathProgramCache]: Analyzing trace with hash -102655211, now seen corresponding path program 1 times [2018-01-25 06:11:40,984 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:11:40,985 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:40,985 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:11:40,986 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:11:40,986 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:11:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:11:40,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:11:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:11:41,123 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:11:41,123 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:11:41,124 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-25 06:11:41,124 INFO L201 CegarAbsIntRunner]: [0], [3], [4], [5], [6], [7], [8], [9], [17], [20], [22], [23], [28], [33], [34], [35], [37], [39], [40], [41], [42] [2018-01-25 06:11:41,125 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:11:41,125 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 06:11:41,282 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-25 06:11:41,283 INFO L268 AbstractInterpreter]: Visited 21 different actions 36 times. Merged at 7 different actions 9 times. Never widened. Never found a fixpoint. Largest state had 16 variables. [2018-01-25 06:11:41,291 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-25 06:11:41,403 INFO L232 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 72.13% of their original sizes. [2018-01-25 06:11:41,403 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-25 06:11:41,901 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-25 06:11:41,901 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-25 06:11:41,901 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 23 [2018-01-25 06:11:41,901 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:11:41,902 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-25 06:11:41,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-25 06:11:41,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-01-25 06:11:41,902 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 16 states. [2018-01-25 06:11:42,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 06:11:42,780 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCongruenceClosure.(WeqCongruenceClosure.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCcManager.copyWeqCc(WeqCcManager.java:1327) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCcManager.isStrongerThan(WeqCcManager.java:582) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.EqConstraint.isStrongerThan(EqConstraint.java:283) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqState.isSubsetOf(EqState.java:199) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqState.isSubsetOf(EqState.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.getMaximalElements(DisjunctiveAbstractState.java:564) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.crossProduct(DisjunctiveAbstractState.java:407) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.intersect(DisjunctiveAbstractState.java:291) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntPredicateUnifier.lambda$3(CegarAbsIntRunner.java:684) at java.util.stream.ReduceOps$2ReducingSink.accept(ReduceOps.java:123) at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1548) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:479) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntPredicateUnifier.getOrConstructPredicateForConjunction(CegarAbsIntRunner.java:684) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1054) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:956) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:185) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:552) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:522) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-25 06:11:42,783 INFO L168 Benchmark]: Toolchain (without parser) took 6400.10 ms. Allocated memory was 308.3 MB in the beginning and 618.1 MB in the end (delta: 309.9 MB). Free memory was 267.3 MB in the beginning and 581.7 MB in the end (delta: -314.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 06:11:42,784 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 308.3 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 06:11:42,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.71 ms. Allocated memory is still 308.3 MB. Free memory was 267.3 MB in the beginning and 253.3 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. [2018-01-25 06:11:42,784 INFO L168 Benchmark]: Boogie Preprocessor took 32.97 ms. Allocated memory is still 308.3 MB. Free memory is still 253.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 06:11:42,785 INFO L168 Benchmark]: RCFGBuilder took 209.85 ms. Allocated memory is still 308.3 MB. Free memory was 253.3 MB in the beginning and 238.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-25 06:11:42,785 INFO L168 Benchmark]: TraceAbstraction took 5947.07 ms. Allocated memory was 308.3 MB in the beginning and 618.1 MB in the end (delta: 309.9 MB). Free memory was 238.7 MB in the beginning and 581.7 MB in the end (delta: -343.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 06:11:42,786 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 308.3 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 202.71 ms. Allocated memory is still 308.3 MB. Free memory was 267.3 MB in the beginning and 253.3 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.97 ms. Allocated memory is still 308.3 MB. Free memory is still 253.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 209.85 ms. Allocated memory is still 308.3 MB. Free memory was 253.3 MB in the beginning and 238.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5947.07 ms. Allocated memory was 308.3 MB in the beginning and 618.1 MB in the end (delta: 309.9 MB). Free memory was 238.7 MB in the beginning and 581.7 MB in the end (delta: -343.0 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 12 LocStat_MAX_WEQGRAPH_SIZE : 1 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 57 LocStat_NO_SUPPORTING_DISEQUALITIES : 0 LocStat_NO_DISJUNCTIONS : -24 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 21 TransStat_MAX_WEQGRAPH_SIZE : 1 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 24 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 22 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.720439 RENAME_VARIABLES(MILLISECONDS) : 0.151743 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.254570 PROJECTAWAY(MILLISECONDS) : 0.048588 ADD_WEAK_EQUALITY(MILLISECONDS) : 4.574697 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.202227 ADD_EQUALITY(MILLISECONDS) : 0.051767 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.015786 #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 : 18 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 95 LocStat_NO_SUPPORTING_DISEQUALITIES : 13 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 29 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 55 TransStat_NO_SUPPORTING_DISEQUALITIES : 8 TransStat_NO_DISJUNCTIONS : 33 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.267066 RENAME_VARIABLES(MILLISECONDS) : 0.127842 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.224666 PROJECTAWAY(MILLISECONDS) : 3.310712 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.073642 DISJOIN(MILLISECONDS) : 0.723544 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.152604 ADD_EQUALITY(MILLISECONDS) : 0.019924 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.021075 #CONJOIN_DISJUNCTIVE : 63 #RENAME_VARIABLES : 133 #UNFREEZE : 0 #CONJOIN : 144 #PROJECTAWAY : 104 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 15 #RENAME_VARIABLES_DISJUNCTIVE : 121 #ADD_EQUALITY : 47 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 98 LocStat_NO_SUPPORTING_DISEQUALITIES : 13 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 29 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 55 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 33 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.103137 RENAME_VARIABLES(MILLISECONDS) : 0.071234 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.084243 PROJECTAWAY(MILLISECONDS) : 1.656791 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.059966 DISJOIN(MILLISECONDS) : 0.502177 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.085667 ADD_EQUALITY(MILLISECONDS) : 0.010653 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012862 #CONJOIN_DISJUNCTIVE : 64 #RENAME_VARIABLES : 133 #UNFREEZE : 0 #CONJOIN : 145 #PROJECTAWAY : 104 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 15 #RENAME_VARIABLES_DISJUNCTIVE : 121 #ADD_EQUALITY : 47 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 7 * 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_test4_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_06-11-42-797.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test4_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-25_06-11-42-797.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test4_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_06-11-42-797.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test4_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-25_06-11-42-797.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test4_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-25_06-11-42-797.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test4_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-2-2018-01-25_06-11-42-797.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test4_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-2-2018-01-25_06-11-42-797.csv Received shutdown request...