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.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 15:55:18,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 15:55:18,313 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 15:55:18,328 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 15:55:18,329 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 15:55:18,330 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 15:55:18,331 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 15:55:18,332 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 15:55:18,334 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 15:55:18,335 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 15:55:18,336 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 15:55:18,336 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 15:55:18,337 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 15:55:18,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 15:55:18,339 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 15:55:18,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 15:55:18,344 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 15:55:18,346 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 15:55:18,347 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 15:55:18,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 15:55:18,350 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 15:55:18,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 15:55:18,351 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 15:55:18,352 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 15:55:18,353 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 15:55:18,354 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 15:55:18,354 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 15:55:18,355 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 15:55:18,355 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 15:55:18,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 15:55:18,356 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 15:55:18,356 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.epf [2018-01-24 15:55:18,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 15:55:18,364 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 15:55:18,365 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 15:55:18,365 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 15:55:18,365 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 15:55:18,366 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 15:55:18,366 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 15:55:18,366 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 15:55:18,366 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 15:55:18,366 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 15:55:18,367 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 15:55:18,367 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 15:55:18,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 15:55:18,367 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 15:55:18,367 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 15:55:18,367 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 15:55:18,367 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 15:55:18,368 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 15:55:18,368 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 15:55:18,368 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 15:55:18,368 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 15:55:18,368 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 15:55:18,368 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 15:55:18,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:55:18,369 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 15:55:18,369 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 15:55:18,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 15:55:18,369 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 15:55:18,369 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 15:55:18,370 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 15:55:18,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 15:55:18,370 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 15:55:18,370 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 15:55:18,371 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 15:55:18,371 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 15:55:18,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 15:55:18,412 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 15:55:18,416 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 15:55:18,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 15:55:18,417 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 15:55:18,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i [2018-01-24 15:55:18,594 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 15:55:18,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 15:55:18,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 15:55:18,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 15:55:18,604 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 15:55:18,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2871eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18, skipping insertion in model container [2018-01-24 15:55:18,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,622 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:55:18,668 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:55:18,790 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:55:18,808 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:55:18,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18 WrapperNode [2018-01-24 15:55:18,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 15:55:18,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 15:55:18,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 15:55:18,818 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 15:55:18,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (1/1) ... [2018-01-24 15:55:18,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 15:55:18,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 15:55:18,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 15:55:18,861 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 15:55:18,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (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 15:55:18,909 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 15:55:18,910 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 15:55:18,910 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 15:55:18,910 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_17 [2018-01-24 15:55:18,910 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 15:55:18,910 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 15:55:18,910 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 15:55:18,910 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 15:55:18,910 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 15:55:18,910 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 15:55:18,910 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_17 [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 15:55:18,911 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 15:55:18,912 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 15:55:19,150 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 15:55:19,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:55:19 BoogieIcfgContainer [2018-01-24 15:55:19,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 15:55:19,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 15:55:19,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 15:55:19,154 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 15:55:19,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:55:18" (1/3) ... [2018-01-24 15:55:19,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfe1987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:55:19, skipping insertion in model container [2018-01-24 15:55:19,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:55:18" (2/3) ... [2018-01-24 15:55:19,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfe1987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:55:19, skipping insertion in model container [2018-01-24 15:55:19,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:55:19" (3/3) ... [2018-01-24 15:55:19,159 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3_false-valid-memtrack.i [2018-01-24 15:55:19,165 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 15:55:19,171 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-24 15:55:19,208 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 15:55:19,208 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 15:55:19,208 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 15:55:19,208 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 15:55:19,208 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 15:55:19,209 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 15:55:19,209 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 15:55:19,209 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 15:55:19,210 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 15:55:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-01-24 15:55:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 15:55:19,234 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:55:19,235 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:55:19,235 INFO L371 AbstractCegarLoop]: === Iteration 1 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 15:55:19,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1525029176, now seen corresponding path program 1 times [2018-01-24 15:55:19,241 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:55:19,287 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:19,288 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:19,288 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:19,288 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:55:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:19,339 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:55:19,432 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 15:55:19,434 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:55:19,434 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 15:55:19,434 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:55:19,437 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:55:19,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:55:19,527 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:55:19,530 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2018-01-24 15:55:19,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:55:19,708 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2018-01-24 15:55:19,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:55:19,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-24 15:55:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:55:19,726 INFO L225 Difference]: With dead ends: 148 [2018-01-24 15:55:19,727 INFO L226 Difference]: Without dead ends: 96 [2018-01-24 15:55:19,731 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:55:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-01-24 15:55:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 63. [2018-01-24 15:55:19,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-24 15:55:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2018-01-24 15:55:19,781 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 17 [2018-01-24 15:55:19,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:55:19,782 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2018-01-24 15:55:19,782 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:55:19,782 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2018-01-24 15:55:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 15:55:19,784 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:55:19,784 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:55:19,784 INFO L371 AbstractCegarLoop]: === Iteration 2 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 15:55:19,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1524292544, now seen corresponding path program 1 times [2018-01-24 15:55:19,785 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:55:19,787 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:19,787 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:19,787 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:19,787 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:55:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:19,803 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:55:19,868 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 15:55:19,868 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:55:19,869 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 15:55:19,869 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:55:19,870 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:55:19,871 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:55:19,871 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:55:19,871 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand 5 states. [2018-01-24 15:55:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:55:19,896 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2018-01-24 15:55:19,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 15:55:19,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-24 15:55:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:55:19,899 INFO L225 Difference]: With dead ends: 116 [2018-01-24 15:55:19,899 INFO L226 Difference]: Without dead ends: 63 [2018-01-24 15:55:19,900 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:55:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-24 15:55:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-01-24 15:55:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 15:55:19,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2018-01-24 15:55:19,907 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 17 [2018-01-24 15:55:19,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:55:19,908 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2018-01-24 15:55:19,908 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:55:19,908 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-01-24 15:55:19,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 15:55:19,909 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:55:19,909 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:55:19,909 INFO L371 AbstractCegarLoop]: === Iteration 3 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 15:55:19,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1268239334, now seen corresponding path program 1 times [2018-01-24 15:55:19,910 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:55:19,911 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:19,911 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:19,912 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:19,912 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:55:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:19,930 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:55:19,977 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 15:55:19,977 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:55:19,978 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 15:55:19,978 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:55:19,978 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 15:55:19,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 15:55:19,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 15:55:19,979 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand 6 states. [2018-01-24 15:55:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:55:20,027 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-01-24 15:55:20,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 15:55:20,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 15:55:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:55:20,029 INFO L225 Difference]: With dead ends: 65 [2018-01-24 15:55:20,029 INFO L226 Difference]: Without dead ends: 61 [2018-01-24 15:55:20,030 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 15:55:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-24 15:55:20,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-01-24 15:55:20,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 15:55:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-01-24 15:55:20,038 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 19 [2018-01-24 15:55:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:55:20,038 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-01-24 15:55:20,038 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 15:55:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-01-24 15:55:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 15:55:20,039 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:55:20,039 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:55:20,040 INFO L371 AbstractCegarLoop]: === Iteration 4 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 15:55:20,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975966, now seen corresponding path program 1 times [2018-01-24 15:55:20,040 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:55:20,041 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:20,042 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:20,042 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:20,042 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:55:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:20,056 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:55:20,121 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 15:55:20,121 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:55:20,121 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 15:55:20,121 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:55:20,122 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 15:55:20,122 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 15:55:20,122 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 15:55:20,122 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 6 states. [2018-01-24 15:55:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:55:20,236 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-01-24 15:55:20,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 15:55:20,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 15:55:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:55:20,237 INFO L225 Difference]: With dead ends: 61 [2018-01-24 15:55:20,237 INFO L226 Difference]: Without dead ends: 60 [2018-01-24 15:55:20,238 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 15:55:20,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-24 15:55:20,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-01-24 15:55:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-01-24 15:55:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-01-24 15:55:20,242 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 19 [2018-01-24 15:55:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:55:20,243 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-01-24 15:55:20,243 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 15:55:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-01-24 15:55:20,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 15:55:20,243 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:55:20,243 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:55:20,243 INFO L371 AbstractCegarLoop]: === Iteration 5 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 15:55:20,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975965, now seen corresponding path program 1 times [2018-01-24 15:55:20,244 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:55:20,245 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:20,245 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:20,245 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:20,245 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:55:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:20,262 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:55:20,540 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 15:55:20,540 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:55:20,541 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 15:55:20,541 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:55:20,541 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 15:55:20,541 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 15:55:20,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-01-24 15:55:20,542 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 9 states. [2018-01-24 15:55:20,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:55:20,785 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2018-01-24 15:55:20,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 15:55:20,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-24 15:55:20,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:55:20,826 INFO L225 Difference]: With dead ends: 110 [2018-01-24 15:55:20,826 INFO L226 Difference]: Without dead ends: 64 [2018-01-24 15:55:20,827 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2018-01-24 15:55:20,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-24 15:55:20,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2018-01-24 15:55:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-24 15:55:20,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-01-24 15:55:20,833 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 19 [2018-01-24 15:55:20,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:55:20,833 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-01-24 15:55:20,834 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 15:55:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-01-24 15:55:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 15:55:20,834 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:55:20,834 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:55:20,835 INFO L371 AbstractCegarLoop]: === Iteration 6 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 15:55:20,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1174934022, now seen corresponding path program 1 times [2018-01-24 15:55:20,835 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:55:20,838 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:20,838 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:20,838 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:20,838 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:55:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:20,859 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:55:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:55:21,126 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:55:21,126 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 15:55:21,126 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-24 15:55:21,128 INFO L201 CegarAbsIntRunner]: [3], [6], [7], [8], [10], [11], [12], [69], [71], [74], [78], [83], [84], [86], [88], [101], [105], [106], [107], [109], [110] [2018-01-24 15:55:21,170 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 15:55:21,171 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 15:55:21,834 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 15:55:21,836 INFO L268 AbstractInterpreter]: Visited 21 different actions 26 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 19 variables. [2018-01-24 15:55:21,849 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 15:55:21,849 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:55:21,849 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 15:55:21,864 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:21,864 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 15:55:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:21,904 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 15:55:22,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-01-24 15:55:22,027 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 15:55:22,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-01-24 15:55:22,060 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 15:55:22,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 15:55:22,102 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 15:55:22,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:55:22,422 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 15:55:22,942 WARN L146 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 36 DAG size of output 27 [2018-01-24 15:55:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:55:22,981 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:55:22,981 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 15:55:22,985 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:22,985 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 15:55:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:23,013 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 15:55:23,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-01-24 15:55:23,021 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 15:55:23,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-01-24 15:55:23,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 15:55:23,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 15:55:23,045 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 15:55:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:55:23,123 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 15:55:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:55:23,585 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 15:55:23,585 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10, 9, 10] total 31 [2018-01-24 15:55:23,585 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 15:55:23,585 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-24 15:55:23,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-24 15:55:23,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2018-01-24 15:55:23,586 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 18 states. [2018-01-24 15:55:23,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:55:23,961 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2018-01-24 15:55:23,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 15:55:23,961 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2018-01-24 15:55:23,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:55:23,962 INFO L225 Difference]: With dead ends: 114 [2018-01-24 15:55:23,962 INFO L226 Difference]: Without dead ends: 68 [2018-01-24 15:55:23,963 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 61 SyntacticMatches, 9 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2018-01-24 15:55:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-24 15:55:23,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2018-01-24 15:55:23,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 15:55:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-01-24 15:55:23,970 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 23 [2018-01-24 15:55:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:55:23,970 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-01-24 15:55:23,970 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-24 15:55:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-01-24 15:55:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 15:55:23,971 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:55:23,971 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:55:23,971 INFO L371 AbstractCegarLoop]: === Iteration 7 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 15:55:23,972 INFO L82 PathProgramCache]: Analyzing trace with hash 614865, now seen corresponding path program 2 times [2018-01-24 15:55:23,972 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:55:23,973 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:23,973 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:55:23,974 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:55:23,974 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:55:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:55:23,990 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:55:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:55:24,345 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:55:24,345 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 15:55:24,345 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-24 15:55:24,345 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 15:55:24,345 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:55:24,346 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 15:55:24,351 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 15:55:24,351 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-24 15:55:24,360 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 15:55:24,364 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 15:55:24,365 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 15:55:24,368 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 15:55:24,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-01-24 15:55:24,383 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 15:55:24,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-01-24 15:55:24,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 15:55:24,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 15:55:24,404 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 15:55:24,665 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:55:24,665 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 15:55:25,568 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 1296 Received shutdown request... [2018-01-24 15:56:30,350 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-24 15:56:30,351 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-24 15:56:30,354 WARN L187 ceAbstractionStarter]: Timeout [2018-01-24 15:56:30,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 03:56:30 BoogieIcfgContainer [2018-01-24 15:56:30,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 15:56:30,355 INFO L168 Benchmark]: Toolchain (without parser) took 71760.70 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 262.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-01-24 15:56:30,355 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 303.0 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:56:30,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.55 ms. Allocated memory is still 303.0 MB. Free memory was 262.1 MB in the beginning and 249.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-24 15:56:30,356 INFO L168 Benchmark]: Boogie Preprocessor took 42.82 ms. Allocated memory is still 303.0 MB. Free memory was 249.0 MB in the beginning and 247.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 15:56:30,356 INFO L168 Benchmark]: RCFGBuilder took 290.70 ms. Allocated memory is still 303.0 MB. Free memory was 247.0 MB in the beginning and 227.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 5.3 GB. [2018-01-24 15:56:30,356 INFO L168 Benchmark]: TraceAbstraction took 71202.33 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 226.5 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. [2018-01-24 15:56:30,358 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 303.0 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 217.55 ms. Allocated memory is still 303.0 MB. Free memory was 262.1 MB in the beginning and 249.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 42.82 ms. Allocated memory is still 303.0 MB. Free memory was 249.0 MB in the beginning and 247.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 290.70 ms. Allocated memory is still 303.0 MB. Free memory was 247.0 MB in the beginning and 227.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 71202.33 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 226.5 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 20 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 4 LocStat_NO_SUPPORTING_EQUALITIES : 123 LocStat_NO_SUPPORTING_DISEQUALITIES : 13 LocStat_NO_DISJUNCTIONS : -40 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 29 TransStat_MAX_WEQGRAPH_SIZE : 12 TransStat_MAX_SIZEOF_WEQEDGELABEL : 4 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 5 TransStat_NO_DISJUNCTIONS : 31 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 4.942119 RENAME_VARIABLES(MILLISECONDS) : 4.325948 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 4.789483 PROJECTAWAY(MILLISECONDS) : 0.910357 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.110186 DISJOIN(MILLISECONDS) : 1.574805 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 4.419536 ADD_EQUALITY(MILLISECONDS) : 0.048361 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.013497 #CONJOIN_DISJUNCTIVE : 42 #RENAME_VARIABLES : 69 #UNFREEZE : 0 #CONJOIN : 82 #PROJECTAWAY : 67 #ADD_WEAK_EQUALITY : 7 #DISJOIN : 1 #RENAME_VARIABLES_DISJUNCTIVE : 66 #ADD_EQUALITY : 51 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 4 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1452). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1446). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1446). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1452). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1471]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1471). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1463). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1463). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1467). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1467). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 62 locations, 13 error locations. TIMEOUT Result, 71.1s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 343 SDtfs, 150 SDslu, 1135 SDs, 0 SdLazy, 409 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 72 SyntacticMatches, 9 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 37 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 196 ConstructedInterpolants, 28 QuantifiedInterpolants, 56510 SizeOfPredicates, 10 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 0/15 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/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_15-56-30-368.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_15-56-30-368.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_15-56-30-368.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_15-56-30-368.csv Completed graceful shutdown