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_precise.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 05:29:25,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 05:29:25,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 05:29:25,978 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 05:29:25,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 05:29:25,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 05:29:25,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 05:29:25,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 05:29:25,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 05:29:25,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 05:29:25,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 05:29:25,985 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 05:29:25,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 05:29:25,987 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 05:29:25,988 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 05:29:25,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 05:29:25,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 05:29:25,995 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 05:29:25,996 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 05:29:25,998 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 05:29:26,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 05:29:26,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 05:29:26,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 05:29:26,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 05:29:26,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 05:29:26,004 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 05:29:26,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 05:29:26,005 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 05:29:26,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 05:29:26,005 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 05:29:26,006 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 05:29:26,006 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_precise.epf [2018-01-21 05:29:26,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 05:29:26,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 05:29:26,017 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 05:29:26,017 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 05:29:26,018 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 05:29:26,018 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 05:29:26,018 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 05:29:26,018 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 05:29:26,019 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 05:29:26,019 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 05:29:26,019 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 05:29:26,020 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 05:29:26,020 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 05:29:26,020 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 05:29:26,020 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 05:29:26,020 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 05:29:26,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 05:29:26,021 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 05:29:26,021 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 05:29:26,021 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 05:29:26,021 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 05:29:26,022 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 05:29:26,022 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 05:29:26,022 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 05:29:26,022 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 05:29:26,022 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 05:29:26,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 05:29:26,023 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 05:29:26,023 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 05:29:26,023 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 05:29:26,023 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 05:29:26,024 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 05:29:26,024 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 05:29:26,024 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 05:29:26,024 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 05:29:26,024 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 05:29:26,025 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 05:29:26,026 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 05:29:26,026 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 05:29:26,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 05:29:26,075 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 05:29:26,079 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 05:29:26,081 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 05:29:26,082 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 05:29:26,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i [2018-01-21 05:29:26,292 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 05:29:26,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 05:29:26,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 05:29:26,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 05:29:26,303 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 05:29:26,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511b2c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26, skipping insertion in model container [2018-01-21 05:29:26,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,328 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:29:26,367 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:29:26,487 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:29:26,509 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:29:26,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26 WrapperNode [2018-01-21 05:29:26,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 05:29:26,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 05:29:26,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 05:29:26,518 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 05:29:26,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (1/1) ... [2018-01-21 05:29:26,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 05:29:26,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 05:29:26,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 05:29:26,555 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 05:29:26,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (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 05:29:26,611 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 05:29:26,611 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 05:29:26,611 INFO L136 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-01-21 05:29:26,611 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2018-01-21 05:29:26,611 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 05:29:26,611 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 05:29:26,612 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 05:29:26,612 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 05:29:26,612 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 05:29:26,612 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 05:29:26,612 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 05:29:26,612 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 05:29:26,613 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 05:29:26,613 INFO L128 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-01-21 05:29:26,613 INFO L128 BoogieDeclarations]: Found specification of procedure cstrpbrk [2018-01-21 05:29:26,613 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 05:29:26,613 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 05:29:26,613 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 05:29:26,840 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 05:29:26,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:29:26 BoogieIcfgContainer [2018-01-21 05:29:26,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 05:29:26,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 05:29:26,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 05:29:26,844 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 05:29:26,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 05:29:26" (1/3) ... [2018-01-21 05:29:26,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e087f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:29:26, skipping insertion in model container [2018-01-21 05:29:26,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:29:26" (2/3) ... [2018-01-21 05:29:26,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e087f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:29:26, skipping insertion in model container [2018-01-21 05:29:26,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:29:26" (3/3) ... [2018-01-21 05:29:26,849 INFO L105 eAbstractionObserver]: Analyzing ICFG cstrpbrk_unsafe_false-valid-deref.i [2018-01-21 05:29:26,858 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 05:29:26,869 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-21 05:29:26,911 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:29:26,911 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:29:26,912 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:29:26,912 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:29:26,912 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:29:26,912 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:29:26,912 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:29:26,912 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == build_nondet_StringErr0EnsuresViolation======== [2018-01-21 05:29:26,913 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:29:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-21 05:29:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 05:29:26,937 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:26,938 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:29:26,938 INFO L371 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr0EnsuresViolation]=== [2018-01-21 05:29:26,942 INFO L82 PathProgramCache]: Analyzing trace with hash 952495694, now seen corresponding path program 1 times [2018-01-21 05:29:26,944 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:26,986 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:26,986 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:26,986 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:26,986 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:29:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:29:27,083 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 05:29:27,091 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 05:29:27,092 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 05:29:27,105 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:29:27,105 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:29:27,105 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:29:27,105 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:29:27,105 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:29:27,106 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:29:27,106 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:29:27,106 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 05:29:27,106 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:29:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-21 05:29:27,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 05:29:27,109 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:27,109 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 05:29:27,109 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 05:29:27,110 INFO L82 PathProgramCache]: Analyzing trace with hash 114200, now seen corresponding path program 1 times [2018-01-21 05:29:27,110 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:27,111 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:27,111 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:27,111 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:27,112 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:29:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:29:27,123 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 05:29:27,124 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 05:29:27,127 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:29:27,127 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:29:27,127 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:29:27,128 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:29:27,128 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:29:27,128 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:29:27,128 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:29:27,128 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == cstrpbrkErr0EnsuresViolation======== [2018-01-21 05:29:27,128 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:29:27,131 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-21 05:29:27,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-21 05:29:27,133 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:27,133 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:29:27,133 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrpbrkErr0EnsuresViolation]=== [2018-01-21 05:29:27,133 INFO L82 PathProgramCache]: Analyzing trace with hash -729248053, now seen corresponding path program 1 times [2018-01-21 05:29:27,134 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:27,135 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:27,135 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:27,135 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:27,136 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:29:27,170 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:29:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:29:27,346 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:29:27,347 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:29:27,348 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-01-21 05:29:27,372 INFO L201 CegarAbsIntRunner]: [0], [3], [7], [8], [9], [10], [11], [14], [16], [25], [26], [28], [72], [74], [76], [81], [82], [83], [84], [85], [87], [88], [89] [2018-01-21 05:29:27,442 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:29:27,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 05:29:29,855 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 05:29:29,857 INFO L268 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 18 variables. [2018-01-21 05:29:29,903 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 05:29:39,111 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 61.51% of their original sizes. [2018-01-21 05:29:39,112 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 05:29:39,396 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 05:29:39,397 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 05:29:39,398 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 13 [2018-01-21 05:29:39,398 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:29:39,400 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-21 05:29:39,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-21 05:29:39,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-01-21 05:29:39,408 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 11 states. [2018-01-21 05:29:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:29:49,652 INFO L93 Difference]: Finished difference Result 100 states and 117 transitions. [2018-01-21 05:29:49,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-21 05:29:49,654 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-01-21 05:29:49,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:29:49,662 INFO L225 Difference]: With dead ends: 100 [2018-01-21 05:29:49,663 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 05:29:49,667 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-01-21 05:29:49,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 05:29:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 05:29:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 05:29:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 05:29:49,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-01-21 05:29:49,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:29:49,697 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 05:29:49,697 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-21 05:29:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 05:29:49,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 05:29:49,700 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:29:49,701 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:29:49,701 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:29:49,701 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:29:49,701 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:29:49,701 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:29:49,701 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:29:49,702 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 05:29:49,702 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:29:49,703 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-21 05:29:49,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-21 05:29:49,705 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:29:49,705 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-01-21 05:29:49,706 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:29:49,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1885767685, now seen corresponding path program 1 times [2018-01-21 05:29:49,706 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:29:49,707 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:49,707 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:29:49,707 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:29:49,708 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:29:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:29:49,726 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:29:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:29:49,776 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:29:49,776 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:29:49,776 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-01-21 05:29:49,776 INFO L201 CegarAbsIntRunner]: [0], [3], [7], [8], [9], [10], [11], [14], [16], [18], [19], [20], [21], [22], [23], [25], [26], [28], [72], [74], [75], [80], [81], [82], [83], [84], [85], [86], [87], [88], [89], [90] [2018-01-21 05:29:49,777 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:29:49,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 05:29:51,671 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 05:29:51,671 INFO L268 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-01-21 05:29:51,673 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 05:30:06,050 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 61.51% of their original sizes. [2018-01-21 05:30:06,050 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 05:30:06,166 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 05:30:06,167 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 05:30:06,167 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 13 [2018-01-21 05:30:06,167 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:30:06,167 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-21 05:30:06,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-21 05:30:06,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-01-21 05:30:06,168 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 11 states. [2018-01-21 05:30:15,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:30:15,085 INFO L93 Difference]: Finished difference Result 100 states and 117 transitions. [2018-01-21 05:30:15,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-21 05:30:15,086 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2018-01-21 05:30:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:30:15,088 INFO L225 Difference]: With dead ends: 100 [2018-01-21 05:30:15,088 INFO L226 Difference]: Without dead ends: 46 [2018-01-21 05:30:15,089 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-01-21 05:30:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-01-21 05:30:15,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-01-21 05:30:15,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-21 05:30:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-01-21 05:30:15,104 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 39 [2018-01-21 05:30:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:30:15,104 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-01-21 05:30:15,104 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-21 05:30:15,104 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-01-21 05:30:15,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-21 05:30:15,106 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:30:15,107 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-01-21 05:30:15,107 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:30:15,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1278608538, now seen corresponding path program 1 times [2018-01-21 05:30:15,107 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:30:15,108 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:15,108 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:15,109 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:15,109 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:30:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:15,125 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:30:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:30:15,160 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:30:15,160 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:30:15,160 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-01-21 05:30:15,160 INFO L201 CegarAbsIntRunner]: [0], [5], [7], [8], [9], [10], [11], [14], [16], [18], [19], [20], [21], [22], [23], [25], [26], [28], [32], [33], [36], [74], [75], [80], [81], [82], [83], [84], [85], [86], [87], [88], [89], [90] [2018-01-21 05:30:15,161 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:30:15,162 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 05:30:15,335 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 05:30:15,335 INFO L268 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-01-21 05:30:15,339 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 05:30:15,993 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 61.51% of their original sizes. [2018-01-21 05:30:15,993 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 05:30:16,073 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 05:30:16,074 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 05:30:16,074 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 13 [2018-01-21 05:30:16,074 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:30:16,075 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-21 05:30:16,075 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-21 05:30:16,075 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-01-21 05:30:16,076 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 11 states. [2018-01-21 05:30:18,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:30:18,928 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-01-21 05:30:18,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-21 05:30:18,928 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2018-01-21 05:30:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:30:18,928 INFO L225 Difference]: With dead ends: 53 [2018-01-21 05:30:18,928 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 05:30:18,929 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-01-21 05:30:18,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 05:30:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 05:30:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 05:30:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 05:30:18,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-01-21 05:30:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:30:18,930 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 05:30:18,930 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-21 05:30:18,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 05:30:18,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 05:30:18,931 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:30:18,931 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:30:18,931 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:30:18,931 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:30:18,931 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:30:18,931 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:30:18,931 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:30:18,931 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 05:30:18,931 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:30:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-21 05:30:18,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-21 05:30:18,933 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:30:18,933 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-01-21 05:30:18,933 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 05:30:18,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1177379984, now seen corresponding path program 1 times [2018-01-21 05:30:18,933 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:30:18,934 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:18,934 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:18,934 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:18,935 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:30:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:18,946 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:30:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:30:18,974 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:30:18,974 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:30:18,975 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-01-21 05:30:18,975 INFO L201 CegarAbsIntRunner]: [0], [3], [7], [8], [9], [10], [11], [14], [16], [18], [19], [20], [21], [22], [24], [25], [26], [28], [72], [74], [75], [81], [82], [83], [84], [85], [86], [87], [88], [89] [2018-01-21 05:30:18,976 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:30:18,976 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 05:30:19,899 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 05:30:19,899 INFO L268 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-01-21 05:30:19,904 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-01-21 05:30:25,462 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 55.9% of their original sizes. [2018-01-21 05:30:25,462 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 05:30:25,468 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:30:25,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 05:30:25 BoogieIcfgContainer [2018-01-21 05:30:25,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 05:30:25,470 INFO L168 Benchmark]: Toolchain (without parser) took 59177.71 ms. Allocated memory was 304.6 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 261.9 MB in the beginning and 1.1 GB in the end (delta: -876.6 MB). Peak memory consumption was 383.2 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:25,471 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 304.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 05:30:25,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.39 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 252.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:25,471 INFO L168 Benchmark]: Boogie Preprocessor took 36.33 ms. Allocated memory is still 304.6 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:25,472 INFO L168 Benchmark]: RCFGBuilder took 286.15 ms. Allocated memory is still 304.6 MB. Free memory was 250.0 MB in the beginning and 231.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:25,472 INFO L168 Benchmark]: TraceAbstraction took 58628.22 ms. Allocated memory was 304.6 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 231.4 MB in the beginning and 1.1 GB in the end (delta: -907.1 MB). Peak memory consumption was 352.7 MB. Max. memory is 5.3 GB. [2018-01-21 05:30:25,473 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 304.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 219.39 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 252.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.33 ms. Allocated memory is still 304.6 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 286.15 ms. Allocated memory is still 304.6 MB. Free memory was 250.0 MB in the beginning and 231.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 58628.22 ms. Allocated memory was 304.6 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 231.4 MB in the beginning and 1.1 GB in the end (delta: -907.1 MB). Peak memory consumption was 352.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 12 LocStat_MAX_WEQGRAPH_SIZE : 8 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 82 LocStat_NO_SUPPORTING_DISEQUALITIES : 12 LocStat_NO_DISJUNCTIONS : -24 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 19 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 34 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 19 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.251895 RENAME_VARIABLES(MILLISECONDS) : 10.953229 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.169950 PROJECTAWAY(MILLISECONDS) : 0.028980 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.184208 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 11.053923 ADD_EQUALITY(MILLISECONDS) : 0.059108 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.046090 #CONJOIN_DISJUNCTIVE : 26 #RENAME_VARIABLES : 35 #UNFREEZE : 0 #CONJOIN : 47 #PROJECTAWAY : 35 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 35 #ADD_EQUALITY : 35 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 1 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 12 LocStat_MAX_WEQGRAPH_SIZE : 8 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 86 LocStat_NO_SUPPORTING_DISEQUALITIES : 12 LocStat_NO_DISJUNCTIONS : -24 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 19 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 34 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 19 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.902498 RENAME_VARIABLES(MILLISECONDS) : 8.724252 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.864005 PROJECTAWAY(MILLISECONDS) : 0.018477 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.067886 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 8.792546 ADD_EQUALITY(MILLISECONDS) : 0.029986 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.009335 #CONJOIN_DISJUNCTIVE : 26 #RENAME_VARIABLES : 35 #UNFREEZE : 0 #CONJOIN : 47 #PROJECTAWAY : 37 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 35 #ADD_EQUALITY : 35 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 1 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 12 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 82 LocStat_NO_SUPPORTING_DISEQUALITIES : 8 LocStat_NO_DISJUNCTIONS : -24 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 19 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 34 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 19 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.403191 RENAME_VARIABLES(MILLISECONDS) : 1.819265 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.364603 PROJECTAWAY(MILLISECONDS) : 0.013435 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.050204 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 1.862945 ADD_EQUALITY(MILLISECONDS) : 0.027454 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006010 #CONJOIN_DISJUNCTIVE : 25 #RENAME_VARIABLES : 35 #UNFREEZE : 0 #CONJOIN : 46 #PROJECTAWAY : 37 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 35 #ADD_EQUALITY : 35 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 1 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 12 LocStat_MAX_WEQGRAPH_SIZE : 8 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 86 LocStat_NO_SUPPORTING_DISEQUALITIES : 12 LocStat_NO_DISJUNCTIONS : -24 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 19 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 34 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 19 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.691532 RENAME_VARIABLES(MILLISECONDS) : 5.872172 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.661114 PROJECTAWAY(MILLISECONDS) : 0.012088 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.046796 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 5.922843 ADD_EQUALITY(MILLISECONDS) : 0.022831 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006198 #CONJOIN_DISJUNCTIVE : 26 #RENAME_VARIABLES : 35 #UNFREEZE : 0 #CONJOIN : 47 #PROJECTAWAY : 35 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 35 #ADD_EQUALITY : 35 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 1 * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - 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: 540]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L565] CALL build_nondet_String() [L541] int length = __VERIFIER_nondet_int(); [L542] COND TRUE length < 1 [L543] length = 1 VAL [length=1] [L545] EXPR, FCALL malloc(length * sizeof(char)) VAL [length=1, malloc(length * sizeof(char))={3:0}] [L545] char* nondetString = (char*) malloc(length * sizeof(char)); VAL [length=1, malloc(length * sizeof(char))={3:0}, nondetString={3:0}] [L546] FCALL nondetString[length-1] = '\0' VAL [length=1, malloc(length * sizeof(char))={3:0}, nondetString={3:0}] [L547] return nondetString; VAL [\result={3:0}, length=1, malloc(length * sizeof(char))={3:0}, nondetString={3:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: build_nondet_StringErr0EnsuresViolation CFG has 5 procedures, 51 locations, 5 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=51occurred 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, 13 NumberOfCodeBlocks, 13 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 - 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 5 procedures, 51 locations, 5 error locations. UNSAFE Result, 0.0s 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=51occurred 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 - PositiveResult [Line: 549]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: cstrpbrkErr0EnsuresViolation CFG has 5 procedures, 51 locations, 5 error locations. SAFE Result, 22.5s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 10.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 96 SDslu, 32 SDs, 0 SdLazy, 211 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.964957934785521 AbsIntWeakeningRatio, 1.3448275862068966 AbsIntAvgWeakeningVarsNumRemoved, 2.1379310344827585 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 0/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 51 locations, 5 error locations. SAFE Result, 29.2s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 11.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 141 SDslu, 38 SDs, 0 SdLazy, 207 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9739430797123103 AbsIntWeakeningRatio, 1.2179487179487178 AbsIntAvgWeakeningVarsNumRemoved, 1.5128205128205128 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 4448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 0 PerfectInterpolantSequences, 0/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 564]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 564). Cancelled while BasicCegarLoop was analyzing trace of length 38 with TraceHistMax 2, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 5 procedures, 51 locations, 5 error locations. TIMEOUT Result, 6.5s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9717716696883362 AbsIntWeakeningRatio, 1.2777777777777777 AbsIntAvgWeakeningVarsNumRemoved, 1.7222222222222223 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-2-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-2-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-3-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-3-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_05-30-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_05-30-25-488.csv Completed graceful shutdown