java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 19:41:54,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 19:41:54,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 19:41:54,927 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 19:41:54,927 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 19:41:54,928 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 19:41:54,929 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 19:41:54,931 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 19:41:54,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 19:41:54,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 19:41:54,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 19:41:54,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 19:41:54,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 19:41:54,937 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 19:41:54,938 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 19:41:54,941 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 19:41:54,943 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 19:41:54,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 19:41:54,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 19:41:54,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 19:41:54,950 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 19:41:54,950 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 19:41:54,950 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 19:41:54,951 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 19:41:54,952 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 19:41:54,953 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 19:41:54,954 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 19:41:54,954 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 19:41:54,955 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 19:41:54,955 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 19:41:54,955 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 19:41:54,956 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf [2018-01-24 19:41:54,964 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 19:41:54,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 19:41:54,966 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 19:41:54,966 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 19:41:54,966 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 19:41:54,966 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 19:41:54,966 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 19:41:54,966 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-24 19:41:54,966 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 19:41:54,967 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 19:41:54,967 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 19:41:54,967 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 19:41:54,967 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 19:41:54,967 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 19:41:54,968 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 19:41:54,968 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 19:41:54,968 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 19:41:54,968 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 19:41:54,968 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 19:41:54,968 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 19:41:54,968 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 19:41:54,969 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 19:41:54,969 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 19:41:54,969 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 19:41:54,969 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 19:41:54,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 19:41:54,970 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 19:41:54,970 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 19:41:54,970 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 19:41:54,970 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 19:41:54,970 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 19:41:54,970 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 19:41:54,970 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 19:41:54,970 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 19:41:54,971 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 19:41:54,971 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 19:41:54,971 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 19:41:55,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 19:41:55,016 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 19:41:55,020 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 19:41:55,021 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 19:41:55,021 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 19:41:55,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i [2018-01-24 19:41:55,174 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 19:41:55,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 19:41:55,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 19:41:55,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 19:41:55,184 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 19:41:55,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eaa2765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55, skipping insertion in model container [2018-01-24 19:41:55,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,202 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 19:41:55,240 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 19:41:55,362 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 19:41:55,384 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 19:41:55,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55 WrapperNode [2018-01-24 19:41:55,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 19:41:55,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 19:41:55,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 19:41:55,391 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 19:41:55,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... [2018-01-24 19:41:55,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 19:41:55,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 19:41:55,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 19:41:55,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 19:41:55,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 19:41:55,476 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 19:41:55,476 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 19:41:55,476 INFO L136 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-01-24 19:41:55,476 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2018-01-24 19:41:55,477 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 19:41:55,477 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 19:41:55,477 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 19:41:55,477 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 19:41:55,477 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 19:41:55,477 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 19:41:55,478 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 19:41:55,478 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 19:41:55,478 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 19:41:55,478 INFO L128 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-01-24 19:41:55,478 INFO L128 BoogieDeclarations]: Found specification of procedure cstrpbrk [2018-01-24 19:41:55,478 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 19:41:55,479 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 19:41:55,479 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 19:41:55,726 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 19:41:55,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 07:41:55 BoogieIcfgContainer [2018-01-24 19:41:55,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 19:41:55,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 19:41:55,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 19:41:55,729 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 19:41:55,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 07:41:55" (1/3) ... [2018-01-24 19:41:55,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@826fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 07:41:55, skipping insertion in model container [2018-01-24 19:41:55,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 07:41:55" (2/3) ... [2018-01-24 19:41:55,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@826fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 07:41:55, skipping insertion in model container [2018-01-24 19:41:55,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 07:41:55" (3/3) ... [2018-01-24 19:41:55,731 INFO L105 eAbstractionObserver]: Analyzing ICFG cstrpbrk_unsafe_false-valid-deref.i [2018-01-24 19:41:55,738 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 19:41:55,744 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-01-24 19:41:55,780 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 19:41:55,781 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 19:41:55,781 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 19:41:55,781 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 19:41:55,781 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 19:41:55,782 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 19:41:55,782 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 19:41:55,782 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 19:41:55,783 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 19:41:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-24 19:41:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 19:41:55,812 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 19:41:55,814 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 19:41:55,814 INFO L371 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr9RequiresViolation, cstrpbrkErr7RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr8RequiresViolation, cstrpbrkErr4RequiresViolation, cstrpbrkErr0RequiresViolation, cstrpbrkErr6RequiresViolation, cstrpbrkErr5RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 19:41:55,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1167838739, now seen corresponding path program 1 times [2018-01-24 19:41:55,822 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 19:41:55,864 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 19:41:55,864 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 19:41:55,864 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 19:41:55,864 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 19:41:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 19:41:55,919 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 19:41:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 19:41:56,012 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 19:41:56,012 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 19:41:56,013 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 19:41:56,015 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 19:41:56,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 19:41:56,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 19:41:56,033 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2018-01-24 19:41:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 19:41:56,274 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2018-01-24 19:41:56,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 19:41:56,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-01-24 19:41:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 19:41:56,287 INFO L225 Difference]: With dead ends: 109 [2018-01-24 19:41:56,287 INFO L226 Difference]: Without dead ends: 61 [2018-01-24 19:41:56,291 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 19:41:56,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-24 19:41:56,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-01-24 19:41:56,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 19:41:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-01-24 19:41:56,336 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 11 [2018-01-24 19:41:56,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 19:41:56,337 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-01-24 19:41:56,337 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 19:41:56,337 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-01-24 19:41:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 19:41:56,338 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 19:41:56,338 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 19:41:56,338 INFO L371 AbstractCegarLoop]: === Iteration 2 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr9RequiresViolation, cstrpbrkErr7RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr8RequiresViolation, cstrpbrkErr4RequiresViolation, cstrpbrkErr0RequiresViolation, cstrpbrkErr6RequiresViolation, cstrpbrkErr5RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 19:41:56,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1167838738, now seen corresponding path program 1 times [2018-01-24 19:41:56,338 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 19:41:56,339 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 19:41:56,340 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 19:41:56,340 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 19:41:56,340 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 19:41:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 19:41:56,356 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 19:41:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 19:41:56,453 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 19:41:56,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 19:41:56,453 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 19:41:56,454 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 19:41:56,454 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 19:41:56,455 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 19:41:56,455 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 5 states. [2018-01-24 19:41:56,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 19:41:56,488 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-01-24 19:41:56,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 19:41:56,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 19:41:56,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 19:41:56,490 INFO L225 Difference]: With dead ends: 61 [2018-01-24 19:41:56,490 INFO L226 Difference]: Without dead ends: 60 [2018-01-24 19:41:56,491 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-24 19:41:56,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-24 19:41:56,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-01-24 19:41:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-01-24 19:41:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-01-24 19:41:56,498 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 11 [2018-01-24 19:41:56,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 19:41:56,498 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-01-24 19:41:56,498 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 19:41:56,499 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-01-24 19:41:56,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-24 19:41:56,500 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 19:41:56,500 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] [2018-01-24 19:41:56,500 INFO L371 AbstractCegarLoop]: === Iteration 3 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr9RequiresViolation, cstrpbrkErr7RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr8RequiresViolation, cstrpbrkErr4RequiresViolation, cstrpbrkErr0RequiresViolation, cstrpbrkErr6RequiresViolation, cstrpbrkErr5RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 19:41:56,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1764023599, now seen corresponding path program 1 times [2018-01-24 19:41:56,500 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 19:41:56,501 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 19:41:56,502 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 19:41:56,502 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 19:41:56,502 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 19:41:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 19:41:56,525 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 19:41:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 19:41:56,767 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 19:41:56,767 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 19:41:56,768 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-01-24 19:41:56,770 INFO L201 CegarAbsIntRunner]: [0], [3], [7], [8], [9], [12], [13], [15], [17], [32], [33], [34], [38], [40], [95], [96], [97], [98], [99], [101], [102], [103] [2018-01-24 19:41:56,810 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 19:41:56,811 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 19:42:25,321 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-24 19:42:25,323 INFO L268 AbstractInterpreter]: Visited 22 different actions 29 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-01-24 19:42:25,334 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-24 19:42:42,437 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 70.71% of their original sizes. [2018-01-24 19:42:42,437 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-24 19:42:43,258 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-24 19:42:43,259 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 19:42:43,259 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [11] total 29 [2018-01-24 19:42:43,259 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 19:42:43,259 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-01-24 19:42:43,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-01-24 19:42:43,260 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=303, Unknown=1, NotChecked=0, Total=380 [2018-01-24 19:42:43,260 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 20 states. Received shutdown request... [2018-01-24 19:43:01,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 19:43:01,652 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-24 19:43:01,657 WARN L187 ceAbstractionStarter]: Timeout [2018-01-24 19:43:01,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 07:43:01 BoogieIcfgContainer [2018-01-24 19:43:01,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 19:43:01,658 INFO L168 Benchmark]: Toolchain (without parser) took 66484.03 ms. Allocated memory was 308.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 267.1 MB in the beginning and 900.2 MB in the end (delta: -633.1 MB). Peak memory consumption was 668.7 MB. Max. memory is 5.3 GB. [2018-01-24 19:43:01,659 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 308.8 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 19:43:01,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.07 ms. Allocated memory is still 308.8 MB. Free memory was 266.1 MB in the beginning and 255.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. [2018-01-24 19:43:01,659 INFO L168 Benchmark]: Boogie Preprocessor took 33.74 ms. Allocated memory is still 308.8 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 19:43:01,660 INFO L168 Benchmark]: RCFGBuilder took 301.51 ms. Allocated memory is still 308.8 MB. Free memory was 253.9 MB in the beginning and 233.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 5.3 GB. [2018-01-24 19:43:01,660 INFO L168 Benchmark]: TraceAbstraction took 65930.34 ms. Allocated memory was 308.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 233.3 MB in the beginning and 900.2 MB in the end (delta: -666.9 MB). Peak memory consumption was 634.9 MB. Max. memory is 5.3 GB. [2018-01-24 19:43:01,662 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 308.8 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 212.07 ms. Allocated memory is still 308.8 MB. Free memory was 266.1 MB in the beginning and 255.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.74 ms. Allocated memory is still 308.8 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 301.51 ms. Allocated memory is still 308.8 MB. Free memory was 253.9 MB in the beginning and 233.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 65930.34 ms. Allocated memory was 308.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 233.3 MB in the beginning and 900.2 MB in the end (delta: -666.9 MB). Peak memory consumption was 634.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 20 LocStat_MAX_WEQGRAPH_SIZE : 8 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 161 LocStat_NO_SUPPORTING_DISEQUALITIES : 32 LocStat_NO_DISJUNCTIONS : -40 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 30 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 51 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 30 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.451777 RENAME_VARIABLES(MILLISECONDS) : 0.319362 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.419542 PROJECTAWAY(MILLISECONDS) : 0.028251 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.109616 DISJOIN(MILLISECONDS) : 0.137477 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.348756 ADD_EQUALITY(MILLISECONDS) : 0.008951 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.010071 #CONJOIN_DISJUNCTIVE : 48 #RENAME_VARIABLES : 77 #UNFREEZE : 0 #CONJOIN : 90 #PROJECTAWAY : 72 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 8 #RENAME_VARIABLES_DISJUNCTIVE : 77 #ADD_EQUALITY : 52 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 2 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 554). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 559). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 557). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 559). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 557). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 554). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 557). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 557). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 569). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 568). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 567). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 568). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 569). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 564]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 564). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 567). Cancelled while BasicCegarLoop was constructing difference of abstraction (60states) and interpolant automaton (currently 13 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (29 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 65 locations, 19 error locations. TIMEOUT Result, 65.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 18.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 141 SDtfs, 48 SDslu, 217 SDs, 0 SdLazy, 105 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8600659261373548 AbsIntWeakeningRatio, 1.3214285714285714 AbsIntAvgWeakeningVarsNumRemoved, 9.107142857142858 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 5700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 5/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_19-43-01-674.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_19-43-01-674.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_19-43-01-674.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrpbrk_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_19-43-01-674.csv Completed graceful shutdown