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_preciseopt.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 02:30:19,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 02:30:19,341 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 02:30:19,365 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 02:30:19,365 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 02:30:19,366 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 02:30:19,367 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 02:30:19,370 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 02:30:19,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 02:30:19,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 02:30:19,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 02:30:19,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 02:30:19,375 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 02:30:19,376 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 02:30:19,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 02:30:19,389 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 02:30:19,392 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 02:30:19,394 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 02:30:19,395 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 02:30:19,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 02:30:19,403 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 02:30:19,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 02:30:19,406 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 02:30:19,407 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 02:30:19,408 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 02:30:19,410 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 02:30:19,410 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 02:30:19,411 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 02:30:19,411 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 02:30:19,411 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 02:30:19,412 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 02:30:19,412 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_preciseopt.epf [2018-01-25 02:30:19,422 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 02:30:19,423 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 02:30:19,425 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 02:30:19,426 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 02:30:19,426 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 02:30:19,426 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 02:30:19,426 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 02:30:19,426 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 02:30:19,427 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 02:30:19,427 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 02:30:19,427 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 02:30:19,428 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 02:30:19,428 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 02:30:19,428 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 02:30:19,429 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 02:30:19,429 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 02:30:19,429 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 02:30:19,429 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 02:30:19,429 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 02:30:19,430 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 02:30:19,430 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 02:30:19,430 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 02:30:19,430 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 02:30:19,430 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 02:30:19,431 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 02:30:19,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 02:30:19,431 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 02:30:19,431 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 02:30:19,431 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 02:30:19,432 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 02:30:19,432 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 02:30:19,432 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 02:30:19,434 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 02:30:19,434 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 02:30:19,434 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 02:30:19,435 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 02:30:19,435 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 02:30:19,484 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 02:30:19,499 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 02:30:19,504 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 02:30:19,506 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 02:30:19,506 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 02:30:19,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i [2018-01-25 02:30:19,692 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 02:30:19,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 02:30:19,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 02:30:19,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 02:30:19,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 02:30:19,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:19,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a926555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19, skipping insertion in model container [2018-01-25 02:30:19,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:19,730 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:30:19,782 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:30:19,920 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:30:19,962 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:30:19,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19 WrapperNode [2018-01-25 02:30:19,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 02:30:19,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 02:30:19,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 02:30:19,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 02:30:19,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:19,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:20,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:20,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:20,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:20,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:20,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... [2018-01-25 02:30:20,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 02:30:20,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 02:30:20,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 02:30:20,016 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 02:30:20,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 02:30:20,068 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 02:30:20,068 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 02:30:20,068 INFO L136 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-01-25 02:30:20,068 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2018-01-25 02:30:20,068 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 02:30:20,069 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 02:30:20,069 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 02:30:20,073 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 02:30:20,073 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 02:30:20,073 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 02:30:20,073 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 02:30:20,073 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 02:30:20,074 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 02:30:20,074 INFO L128 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-01-25 02:30:20,074 INFO L128 BoogieDeclarations]: Found specification of procedure cstrpbrk [2018-01-25 02:30:20,074 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 02:30:20,074 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 02:30:20,074 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 02:30:20,470 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 02:30:20,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:30:20 BoogieIcfgContainer [2018-01-25 02:30:20,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 02:30:20,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 02:30:20,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 02:30:20,474 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 02:30:20,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 02:30:19" (1/3) ... [2018-01-25 02:30:20,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461e103c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:30:20, skipping insertion in model container [2018-01-25 02:30:20,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:30:19" (2/3) ... [2018-01-25 02:30:20,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461e103c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:30:20, skipping insertion in model container [2018-01-25 02:30:20,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:30:20" (3/3) ... [2018-01-25 02:30:20,477 INFO L105 eAbstractionObserver]: Analyzing ICFG cstrpbrk_unsafe_false-valid-deref.i [2018-01-25 02:30:20,484 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 02:30:20,496 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-01-25 02:30:20,540 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 02:30:20,540 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 02:30:20,541 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 02:30:20,541 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 02:30:20,541 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 02:30:20,541 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 02:30:20,541 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 02:30:20,541 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 02:30:20,542 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 02:30:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-25 02:30:20,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-25 02:30:20,565 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:30:20,566 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:30:20,566 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]=== [2018-01-25 02:30:20,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1167838739, now seen corresponding path program 1 times [2018-01-25 02:30:20,572 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:30:20,614 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:30:20,614 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:30:20,615 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:30:20,615 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:30:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:30:20,670 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:30:20,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:30:20,749 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:30:20,749 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 02:30:20,749 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:30:20,752 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 02:30:20,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 02:30:20,763 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 02:30:20,765 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2018-01-25 02:30:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:30:21,018 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2018-01-25 02:30:21,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 02:30:21,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-01-25 02:30:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:30:21,030 INFO L225 Difference]: With dead ends: 109 [2018-01-25 02:30:21,030 INFO L226 Difference]: Without dead ends: 61 [2018-01-25 02:30:21,034 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 [2018-01-25 02:30:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-25 02:30:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-01-25 02:30:21,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-25 02:30:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-01-25 02:30:21,075 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 11 [2018-01-25 02:30:21,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:30:21,076 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-01-25 02:30:21,076 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 02:30:21,076 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-01-25 02:30:21,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-25 02:30:21,076 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:30:21,077 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:30:21,077 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]=== [2018-01-25 02:30:21,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1167838738, now seen corresponding path program 1 times [2018-01-25 02:30:21,077 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:30:21,078 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:30:21,078 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:30:21,079 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:30:21,079 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:30:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:30:21,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:30:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:30:21,211 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:30:21,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 02:30:21,212 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:30:21,214 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 02:30:21,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 02:30:21,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:30:21,215 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 5 states. [2018-01-25 02:30:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:30:21,259 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-01-25 02:30:21,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 02:30:21,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-25 02:30:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:30:21,261 INFO L225 Difference]: With dead ends: 61 [2018-01-25 02:30:21,261 INFO L226 Difference]: Without dead ends: 60 [2018-01-25 02:30:21,262 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 [2018-01-25 02:30:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-25 02:30:21,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-01-25 02:30:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-01-25 02:30:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-01-25 02:30:21,271 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 11 [2018-01-25 02:30:21,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:30:21,272 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-01-25 02:30:21,272 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 02:30:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-01-25 02:30:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-25 02:30:21,273 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:30:21,273 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] [2018-01-25 02:30:21,273 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]=== [2018-01-25 02:30:21,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1764023599, now seen corresponding path program 1 times [2018-01-25 02:30:21,274 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:30:21,275 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:30:21,275 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:30:21,275 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:30:21,275 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:30:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:30:21,303 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:30:21,538 WARN L143 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 11 [2018-01-25 02:30:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:30:21,659 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 02:30:21,659 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 02:30:21,660 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-01-25 02:30:21,662 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] [2018-01-25 02:30:21,705 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 02:30:21,705 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 02:30:54,111 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-25 02:30:54,116 INFO L268 AbstractInterpreter]: Visited 22 different actions 29 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-01-25 02:30:54,144 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-25 02:31:13,183 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 70.71% of their original sizes. [2018-01-25 02:31:13,183 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-25 02:31:14,101 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-25 02:31:14,102 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-25 02:31:14,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [11] total 29 [2018-01-25 02:31:14,103 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:31:14,103 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-01-25 02:31:14,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-01-25 02:31:14,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=303, Unknown=1, NotChecked=0, Total=380 [2018-01-25 02:31:14,104 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 20 states. Received shutdown request... [2018-01-25 02:31:21,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-25 02:31:21,927 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-25 02:31:21,933 WARN L187 ceAbstractionStarter]: Timeout [2018-01-25 02:31:21,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 02:31:21 BoogieIcfgContainer [2018-01-25 02:31:21,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 02:31:21,935 INFO L168 Benchmark]: Toolchain (without parser) took 62241.27 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 260.9 MB in the beginning and 1.2 GB in the end (delta: -932.5 MB). Peak memory consumption was 513.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:31:21,936 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 303.6 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 02:31:21,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.47 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:31:21,936 INFO L168 Benchmark]: Boogie Preprocessor took 43.59 ms. Allocated memory is still 303.6 MB. Free memory was 250.9 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:31:21,937 INFO L168 Benchmark]: RCFGBuilder took 455.89 ms. Allocated memory is still 303.6 MB. Free memory was 248.9 MB in the beginning and 228.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 5.3 GB. [2018-01-25 02:31:21,937 INFO L168 Benchmark]: TraceAbstraction took 61461.37 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 228.4 MB in the beginning and 1.2 GB in the end (delta: -965.0 MB). Peak memory consumption was 480.5 MB. Max. memory is 5.3 GB. [2018-01-25 02:31:21,942 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 303.6 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 271.47 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 43.59 ms. Allocated memory is still 303.6 MB. Free memory was 250.9 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 455.89 ms. Allocated memory is still 303.6 MB. Free memory was 248.9 MB in the beginning and 228.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 61461.37 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 228.4 MB in the beginning and 1.2 GB in the end (delta: -965.0 MB). Peak memory consumption was 480.5 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) : 0.576742 RENAME_VARIABLES(MILLISECONDS) : 0.258349 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.546969 PROJECTAWAY(MILLISECONDS) : 0.029664 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.132634 DISJOIN(MILLISECONDS) : 0.145700 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.283351 ADD_EQUALITY(MILLISECONDS) : 0.011197 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.013895 #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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 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 12 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (28 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 65 locations, 19 error locations. TIMEOUT Result, 61.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 8.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 141 SDtfs, 47 SDslu, 217 SDs, 0 SdLazy, 103 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s 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, 32.4s 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, 0.5s 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_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_02-31-21-958.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_preciseopt.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-25_02-31-21-958.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_preciseopt.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_02-31-21-958.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_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_02-31-21-958.csv Completed graceful shutdown