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/mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-sorted_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 01:03:14,907 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 01:03:14,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 01:03:14,923 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 01:03:14,924 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 01:03:14,924 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 01:03:14,926 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 01:03:14,927 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 01:03:14,929 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 01:03:14,930 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 01:03:14,931 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 01:03:14,931 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 01:03:14,932 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 01:03:14,933 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 01:03:14,934 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 01:03:14,937 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 01:03:14,939 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 01:03:14,941 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 01:03:14,942 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 01:03:14,944 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 01:03:14,946 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 01:03:14,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 01:03:14,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 01:03:14,952 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf [2018-01-21 01:03:14,961 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 01:03:14,961 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 01:03:14,962 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 01:03:14,962 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 01:03:14,962 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 01:03:14,962 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-21 01:03:14,962 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 01:03:14,962 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 01:03:14,963 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 01:03:14,963 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 01:03:14,963 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 01:03:14,963 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 01:03:14,963 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 01:03:14,963 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 01:03:14,963 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 01:03:14,964 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 01:03:14,964 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 01:03:14,964 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 01:03:14,964 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 01:03:14,964 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 01:03:14,964 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 01:03:14,964 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 01:03:14,965 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 01:03:14,965 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 01:03:14,965 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 01:03:14,965 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 01:03:14,965 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 01:03:14,966 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 01:03:14,966 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 01:03:14,966 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 01:03:14,966 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 01:03:14,966 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 01:03:14,966 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 01:03:14,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 01:03:14,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 01:03:14,967 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 01:03:14,967 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 01:03:14,967 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 01:03:14,967 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 01:03:15,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 01:03:15,011 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 01:03:15,015 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 01:03:15,016 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 01:03:15,016 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 01:03:15,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-sorted_true-unreach-call_true-valid-memsafety.i [2018-01-21 01:03:15,178 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 01:03:15,182 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 01:03:15,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 01:03:15,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 01:03:15,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 01:03:15,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c517b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15, skipping insertion in model container [2018-01-21 01:03:15,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,205 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 01:03:15,247 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 01:03:15,366 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 01:03:15,387 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 01:03:15,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15 WrapperNode [2018-01-21 01:03:15,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 01:03:15,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 01:03:15,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 01:03:15,401 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 01:03:15,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (1/1) ... [2018-01-21 01:03:15,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 01:03:15,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 01:03:15,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 01:03:15,445 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 01:03:15,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (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 [2018-01-21 01:03:15,506 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 01:03:15,506 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 01:03:15,506 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 01:03:15,506 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 01:03:15,506 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 01:03:15,506 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 01:03:15,507 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 01:03:15,507 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 01:03:15,507 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 01:03:15,507 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 01:03:15,507 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 01:03:15,507 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 01:03:15,508 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 01:03:15,508 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 01:03:15,508 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 01:03:15,508 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 01:03:15,508 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 01:03:15,969 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 01:03:15,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 01:03:15 BoogieIcfgContainer [2018-01-21 01:03:15,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 01:03:15,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 01:03:15,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 01:03:15,974 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 01:03:15,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 01:03:15" (1/3) ... [2018-01-21 01:03:15,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69547694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 01:03:15, skipping insertion in model container [2018-01-21 01:03:15,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 01:03:15" (2/3) ... [2018-01-21 01:03:16,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69547694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 01:03:16, skipping insertion in model container [2018-01-21 01:03:16,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 01:03:15" (3/3) ... [2018-01-21 01:03:16,010 INFO L105 eAbstractionObserver]: Analyzing ICFG dll-sorted_true-unreach-call_true-valid-memsafety.i [2018-01-21 01:03:16,016 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 01:03:16,022 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 01:03:16,060 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 01:03:16,060 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 01:03:16,060 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 01:03:16,061 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 01:03:16,061 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 01:03:16,061 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 01:03:16,061 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 01:03:16,061 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 01:03:16,062 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 01:03:16,086 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-01-21 01:03:16,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 01:03:16,093 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 01:03:16,094 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 01:03:16,094 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 01:03:16,098 INFO L82 PathProgramCache]: Analyzing trace with hash 319525, now seen corresponding path program 1 times [2018-01-21 01:03:16,100 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 01:03:16,141 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,141 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 01:03:16,142 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,142 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 01:03:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 01:03:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 01:03:16,198 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 01:03:16,204 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 01:03:16,213 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 01:03:16,213 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 01:03:16,213 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 01:03:16,213 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 01:03:16,213 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 01:03:16,214 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 01:03:16,214 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 01:03:16,214 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 01:03:16,214 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 01:03:16,217 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-01-21 01:03:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-21 01:03:16,221 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 01:03:16,221 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 01:03:16,221 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 01:03:16,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1191137443, now seen corresponding path program 1 times [2018-01-21 01:03:16,222 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 01:03:16,223 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,223 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 01:03:16,224 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,224 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 01:03:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 01:03:16,266 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 01:03:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 01:03:16,404 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 01:03:16,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 01:03:16,404 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 01:03:16,406 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 01:03:16,417 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 01:03:16,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 01:03:16,419 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2018-01-21 01:03:16,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 01:03:16,446 INFO L93 Difference]: Finished difference Result 198 states and 264 transitions. [2018-01-21 01:03:16,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 01:03:16,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 34 [2018-01-21 01:03:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 01:03:16,460 INFO L225 Difference]: With dead ends: 198 [2018-01-21 01:03:16,460 INFO L226 Difference]: Without dead ends: 110 [2018-01-21 01:03:16,463 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 01:03:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-01-21 01:03:16,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-01-21 01:03:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-01-21 01:03:16,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2018-01-21 01:03:16,502 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 34 [2018-01-21 01:03:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 01:03:16,502 INFO L432 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2018-01-21 01:03:16,502 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 01:03:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2018-01-21 01:03:16,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-01-21 01:03:16,505 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 01:03:16,505 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 01:03:16,505 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 01:03:16,505 INFO L82 PathProgramCache]: Analyzing trace with hash -833133189, now seen corresponding path program 1 times [2018-01-21 01:03:16,505 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 01:03:16,506 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,506 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 01:03:16,507 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,507 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 01:03:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 01:03:16,534 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 01:03:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 01:03:16,597 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 01:03:16,597 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 01:03:16,597 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 01:03:16,599 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 01:03:16,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 01:03:16,600 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 01:03:16,600 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 3 states. [2018-01-21 01:03:16,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 01:03:16,654 INFO L93 Difference]: Finished difference Result 236 states and 263 transitions. [2018-01-21 01:03:16,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 01:03:16,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-01-21 01:03:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 01:03:16,659 INFO L225 Difference]: With dead ends: 236 [2018-01-21 01:03:16,660 INFO L226 Difference]: Without dead ends: 137 [2018-01-21 01:03:16,661 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 01:03:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-01-21 01:03:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 124. [2018-01-21 01:03:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-01-21 01:03:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 136 transitions. [2018-01-21 01:03:16,674 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 136 transitions. Word has length 51 [2018-01-21 01:03:16,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 01:03:16,675 INFO L432 AbstractCegarLoop]: Abstraction has 124 states and 136 transitions. [2018-01-21 01:03:16,675 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 01:03:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 136 transitions. [2018-01-21 01:03:16,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-01-21 01:03:16,677 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 01:03:16,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 01:03:16,678 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 01:03:16,678 INFO L82 PathProgramCache]: Analyzing trace with hash -487006783, now seen corresponding path program 1 times [2018-01-21 01:03:16,678 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 01:03:16,679 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,679 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 01:03:16,679 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:16,679 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 01:03:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 01:03:16,725 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 01:03:16,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-01-21 01:03:16,874 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 01:03:16,874 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-21 01:03:16,874 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 01:03:16,875 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 01:03:16,875 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 01:03:16,875 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-21 01:03:16,875 INFO L87 Difference]: Start difference. First operand 124 states and 136 transitions. Second operand 6 states. [2018-01-21 01:03:17,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 01:03:17,156 INFO L93 Difference]: Finished difference Result 248 states and 273 transitions. [2018-01-21 01:03:17,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-21 01:03:17,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-01-21 01:03:17,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 01:03:17,160 INFO L225 Difference]: With dead ends: 248 [2018-01-21 01:03:17,160 INFO L226 Difference]: Without dead ends: 207 [2018-01-21 01:03:17,161 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-01-21 01:03:17,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-01-21 01:03:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 134. [2018-01-21 01:03:17,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-01-21 01:03:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2018-01-21 01:03:17,175 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 66 [2018-01-21 01:03:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 01:03:17,176 INFO L432 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2018-01-21 01:03:17,176 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 01:03:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2018-01-21 01:03:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-01-21 01:03:17,179 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 01:03:17,179 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 01:03:17,180 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 01:03:17,180 INFO L82 PathProgramCache]: Analyzing trace with hash 548520625, now seen corresponding path program 1 times [2018-01-21 01:03:17,180 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 01:03:17,181 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:17,181 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 01:03:17,182 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:17,182 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 01:03:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 01:03:17,215 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 01:03:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-01-21 01:03:17,359 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 01:03:17,359 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-21 01:03:17,359 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 01:03:17,360 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-21 01:03:17,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-21 01:03:17,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-21 01:03:17,361 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand 7 states. [2018-01-21 01:03:17,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 01:03:17,608 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2018-01-21 01:03:17,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-21 01:03:17,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2018-01-21 01:03:17,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 01:03:17,610 INFO L225 Difference]: With dead ends: 229 [2018-01-21 01:03:17,610 INFO L226 Difference]: Without dead ends: 151 [2018-01-21 01:03:17,612 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-01-21 01:03:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-01-21 01:03:17,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2018-01-21 01:03:17,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-01-21 01:03:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2018-01-21 01:03:17,624 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 86 [2018-01-21 01:03:17,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 01:03:17,625 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2018-01-21 01:03:17,625 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-21 01:03:17,625 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2018-01-21 01:03:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-01-21 01:03:17,627 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 01:03:17,627 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 01:03:17,628 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 01:03:17,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1500867217, now seen corresponding path program 1 times [2018-01-21 01:03:17,629 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 01:03:17,630 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:17,630 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 01:03:17,630 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 01:03:17,630 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 01:03:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 01:03:17,660 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 01:03:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-21 01:03:17,834 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 01:03:17,834 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 01:03:17,835 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 87 with the following transitions: [2018-01-21 01:03:17,836 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [4], [5], [9], [11], [14], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [28], [34], [35], [43], [47], [52], [56], [62], [66], [68], [69], [77], [81], [91], [93], [94], [99], [103], [130], [131], [132], [133], [134], [135], [138], [139], [150], [154], [156], [159], [160], [161], [167], [215], [219], [221], [222], [223], [227], [228], [233], [237], [245], [250], [254], [260], [261], [265], [269], [273], [275], [276], [277], [278], [282], [283], [285], [286], [291], [292], [293], [294], [295] [2018-01-21 01:03:17,883 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 01:03:17,883 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 01:03:18,600 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (distinct Bool Int) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:399) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) 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:157) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (distinct Bool Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:321) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:296) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.term(DiffWrapperScript.java:286) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.CongruenceClosureSmtUtils.lambda$1(CongruenceClosureSmtUtils.java:29) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.Iterator.forEachRemaining(Iterator.java:116) at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) 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.collect(ReferencePipeline.java:499) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.CongruenceClosureSmtUtils.congruenceClosureToCube(CongruenceClosureSmtUtils.java:30) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.WeqCcManager.weqCcToTerm(WeqCcManager.java:935) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.EqConstraint.getTerm(EqConstraint.java:185) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.EqDisjunctiveConstraint.lambda$2(EqDisjunctiveConstraint.java:121) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.HashMap$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.collect(ReferencePipeline.java:499) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.vpdomain.EqDisjunctiveConstraint.getTerm(EqDisjunctiveConstraint.java:121) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqPredicate.(EqPredicate.java:64) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqStateFactory.stateToPredicate(EqStateFactory.java:112) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqState.toEqPredicate(EqState.java:224) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqPostOperator.apply(EqPostOperator.java:121) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqPostOperator.apply(EqPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$16(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:443) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:148) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:388) ... 21 more [2018-01-21 01:03:18,604 INFO L168 Benchmark]: Toolchain (without parser) took 3425.42 ms. Allocated memory was 302.5 MB in the beginning and 515.4 MB in the end (delta: 212.9 MB). Free memory was 260.8 MB in the beginning and 359.0 MB in the end (delta: -98.2 MB). Peak memory consumption was 114.7 MB. Max. memory is 5.3 GB. [2018-01-21 01:03:18,605 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 302.5 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 01:03:18,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.82 ms. Allocated memory is still 302.5 MB. Free memory was 259.8 MB in the beginning and 247.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-21 01:03:18,606 INFO L168 Benchmark]: Boogie Preprocessor took 43.41 ms. Allocated memory is still 302.5 MB. Free memory was 247.7 MB in the beginning and 245.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 01:03:18,607 INFO L168 Benchmark]: RCFGBuilder took 526.15 ms. Allocated memory is still 302.5 MB. Free memory was 245.7 MB in the beginning and 214.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 5.3 GB. [2018-01-21 01:03:18,607 INFO L168 Benchmark]: TraceAbstraction took 2632.05 ms. Allocated memory was 302.5 MB in the beginning and 515.4 MB in the end (delta: 212.9 MB). Free memory was 213.1 MB in the beginning and 359.0 MB in the end (delta: -145.9 MB). Peak memory consumption was 67.0 MB. Max. memory is 5.3 GB. [2018-01-21 01:03:18,609 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 302.5 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 216.82 ms. Allocated memory is still 302.5 MB. Free memory was 259.8 MB in the beginning and 247.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 43.41 ms. Allocated memory is still 302.5 MB. Free memory was 247.7 MB in the beginning and 245.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 526.15 ms. Allocated memory is still 302.5 MB. Free memory was 245.7 MB in the beginning and 214.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2632.05 ms. Allocated memory was 302.5 MB in the beginning and 515.4 MB in the end (delta: 212.9 MB). Free memory was 213.1 MB in the beginning and 359.0 MB in the end (delta: -145.9 MB). Peak memory consumption was 67.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 3 procedures, 113 locations, 3 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (distinct Bool Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (distinct Bool Int): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:399) 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/dll-sorted_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_01-03-18-616.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-sorted_true-unreach-call_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_01-03-18-616.csv Received shutdown request...