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_imprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 17:19:43,040 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 17:19:43,042 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 17:19:43,057 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 17:19:43,057 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 17:19:43,058 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 17:19:43,059 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 17:19:43,061 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 17:19:43,063 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 17:19:43,064 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 17:19:43,065 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 17:19:43,065 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 17:19:43,066 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 17:19:43,068 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 17:19:43,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 17:19:43,071 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 17:19:43,073 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 17:19:43,075 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 17:19:43,077 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 17:19:43,078 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 17:19:43,081 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 17:19:43,081 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 17:19:43,081 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 17:19:43,082 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 17:19:43,083 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 17:19:43,084 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 17:19:43,085 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 17:19:43,085 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 17:19:43,086 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 17:19:43,086 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 17:19:43,087 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 17:19:43,087 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_imprecise.epf [2018-01-24 17:19:43,096 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 17:19:43,096 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 17:19:43,097 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 17:19:43,097 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 17:19:43,098 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 17:19:43,098 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 17:19:43,098 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 17:19:43,098 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 17:19:43,098 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 17:19:43,098 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 17:19:43,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 17:19:43,100 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 17:19:43,100 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 17:19:43,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 17:19:43,100 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 17:19:43,100 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 17:19:43,100 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 17:19:43,101 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:19:43,101 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 17:19:43,101 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 17:19:43,101 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 17:19:43,101 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 17:19:43,101 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 17:19:43,102 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 17:19:43,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 17:19:43,102 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 17:19:43,102 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 17:19:43,103 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 17:19:43,103 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 17:19:43,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 17:19:43,146 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 17:19:43,150 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 17:19:43,151 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 17:19:43,151 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 17:19:43,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i [2018-01-24 17:19:43,335 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 17:19:43,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 17:19:43,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 17:19:43,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 17:19:43,345 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 17:19:43,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d3d535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43, skipping insertion in model container [2018-01-24 17:19:43,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,362 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:19:43,409 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:19:43,530 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:19:43,551 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:19:43,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43 WrapperNode [2018-01-24 17:19:43,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 17:19:43,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 17:19:43,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 17:19:43,560 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 17:19:43,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (1/1) ... [2018-01-24 17:19:43,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 17:19:43,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 17:19:43,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 17:19:43,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 17:19:43,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (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 17:19:43,646 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 17:19:43,647 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 17:19:43,647 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 17:19:43,647 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_17 [2018-01-24 17:19:43,647 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 17:19:43,647 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 17:19:43,647 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 17:19:43,647 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 17:19:43,647 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 17:19:43,647 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 17:19:43,647 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_17 [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 17:19:43,648 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 17:19:43,649 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 17:19:43,892 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 17:19:43,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:19:43 BoogieIcfgContainer [2018-01-24 17:19:43,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 17:19:43,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 17:19:43,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 17:19:43,896 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 17:19:43,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 05:19:43" (1/3) ... [2018-01-24 17:19:43,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:19:43, skipping insertion in model container [2018-01-24 17:19:43,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:19:43" (2/3) ... [2018-01-24 17:19:43,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:19:43, skipping insertion in model container [2018-01-24 17:19:43,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:19:43" (3/3) ... [2018-01-24 17:19:43,899 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3_false-valid-memtrack.i [2018-01-24 17:19:43,906 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 17:19:43,912 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-24 17:19:43,955 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 17:19:43,955 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 17:19:43,955 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 17:19:43,955 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 17:19:43,956 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 17:19:43,956 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 17:19:43,956 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 17:19:43,956 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 17:19:43,957 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 17:19:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-01-24 17:19:43,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 17:19:43,979 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:43,980 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 17:19:43,980 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 17:19:43,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1525029176, now seen corresponding path program 1 times [2018-01-24 17:19:43,986 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:44,032 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,032 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:44,033 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,033 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:44,082 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:44,177 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 17:19:44,179 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:19:44,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 17:19:44,180 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:19:44,183 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 17:19:44,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 17:19:44,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:19:44,281 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2018-01-24 17:19:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:19:44,448 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2018-01-24 17:19:44,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 17:19:44,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-24 17:19:44,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:19:44,465 INFO L225 Difference]: With dead ends: 148 [2018-01-24 17:19:44,465 INFO L226 Difference]: Without dead ends: 96 [2018-01-24 17:19:44,469 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 17:19:44,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-01-24 17:19:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 63. [2018-01-24 17:19:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-24 17:19:44,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2018-01-24 17:19:44,520 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 17 [2018-01-24 17:19:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:19:44,521 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2018-01-24 17:19:44,521 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 17:19:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2018-01-24 17:19:44,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 17:19:44,523 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:44,524 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 17:19:44,524 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 17:19:44,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1524292544, now seen corresponding path program 1 times [2018-01-24 17:19:44,524 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:44,526 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,527 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:44,527 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,527 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:44,544 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:44,615 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 17:19:44,616 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:19:44,616 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 17:19:44,616 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:19:44,618 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 17:19:44,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 17:19:44,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 17:19:44,619 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand 5 states. [2018-01-24 17:19:44,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:19:44,651 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2018-01-24 17:19:44,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 17:19:44,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-24 17:19:44,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:19:44,653 INFO L225 Difference]: With dead ends: 116 [2018-01-24 17:19:44,653 INFO L226 Difference]: Without dead ends: 63 [2018-01-24 17:19:44,655 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 17:19:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-24 17:19:44,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-01-24 17:19:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 17:19:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2018-01-24 17:19:44,664 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 17 [2018-01-24 17:19:44,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:19:44,664 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2018-01-24 17:19:44,664 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 17:19:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-01-24 17:19:44,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 17:19:44,665 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:44,666 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 17:19:44,666 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 17:19:44,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1268239334, now seen corresponding path program 1 times [2018-01-24 17:19:44,666 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:44,668 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,668 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:44,668 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,668 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:44,686 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:44,737 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 17:19:44,738 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:19:44,738 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:19:44,738 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:19:44,739 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 17:19:44,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 17:19:44,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 17:19:44,739 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand 6 states. [2018-01-24 17:19:44,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:19:44,776 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-01-24 17:19:44,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 17:19:44,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 17:19:44,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:19:44,778 INFO L225 Difference]: With dead ends: 65 [2018-01-24 17:19:44,778 INFO L226 Difference]: Without dead ends: 61 [2018-01-24 17:19:44,779 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 17:19:44,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-24 17:19:44,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-01-24 17:19:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 17:19:44,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-01-24 17:19:44,787 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 19 [2018-01-24 17:19:44,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:19:44,787 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-01-24 17:19:44,787 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 17:19:44,787 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-01-24 17:19:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 17:19:44,788 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:44,788 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 17:19:44,788 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 17:19:44,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975966, now seen corresponding path program 1 times [2018-01-24 17:19:44,789 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:44,790 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,790 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:44,791 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:44,791 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:44,807 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:44,879 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 17:19:44,879 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:19:44,879 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 17:19:44,880 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:19:44,880 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 17:19:44,880 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 17:19:44,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 17:19:44,880 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 6 states. [2018-01-24 17:19:45,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:19:45,001 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-01-24 17:19:45,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 17:19:45,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 17:19:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:19:45,003 INFO L225 Difference]: With dead ends: 61 [2018-01-24 17:19:45,003 INFO L226 Difference]: Without dead ends: 60 [2018-01-24 17:19:45,003 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 17:19:45,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-24 17:19:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-01-24 17:19:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-01-24 17:19:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-01-24 17:19:45,011 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 19 [2018-01-24 17:19:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:19:45,011 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-01-24 17:19:45,011 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 17:19:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-01-24 17:19:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 17:19:45,012 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:45,012 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 17:19:45,013 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 17:19:45,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975965, now seen corresponding path program 1 times [2018-01-24 17:19:45,013 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:45,014 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:45,015 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:45,015 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:45,015 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:45,035 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:45,394 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 17:19:45,395 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:19:45,395 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 17:19:45,395 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:19:45,395 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 17:19:45,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 17:19:45,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:19:45,396 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 9 states. [2018-01-24 17:19:45,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:19:45,621 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2018-01-24 17:19:45,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 17:19:45,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-24 17:19:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:19:45,623 INFO L225 Difference]: With dead ends: 110 [2018-01-24 17:19:45,623 INFO L226 Difference]: Without dead ends: 64 [2018-01-24 17:19:45,623 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 17:19:45,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-24 17:19:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2018-01-24 17:19:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-24 17:19:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-01-24 17:19:45,629 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 19 [2018-01-24 17:19:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:19:45,629 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-01-24 17:19:45,629 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 17:19:45,629 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-01-24 17:19:45,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 17:19:45,630 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:45,630 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 17:19:45,630 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 17:19:45,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1174934022, now seen corresponding path program 1 times [2018-01-24 17:19:45,630 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:45,632 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:45,632 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:45,632 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:45,632 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:45,646 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:45,959 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 17:19:45,960 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:45,960 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:19:45,961 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-24 17:19:45,964 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 17:19:46,013 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 17:19:46,014 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 17:19:46,169 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 17:19:46,171 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 17:19:46,192 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 17:19:46,193 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:46,193 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 17:19:46,201 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:46,201 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:19:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:46,235 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:19:46,315 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 17:19:46,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:19:46,332 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 17:19:46,333 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 17:19:46,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 17:19:46,346 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 17:19:46,644 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 17:19:46,644 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:19:47,215 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 17:19:47,236 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:47,236 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 17:19:47,241 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:47,241 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:19:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:47,267 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:19:47,273 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 17:19:47,274 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:19:47,286 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 17:19:47,286 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 17:19:47,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 17:19:47,296 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 17:19:47,370 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 17:19:47,370 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:19:47,808 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 17:19:47,810 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 17:19:47,810 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10, 9, 10] total 31 [2018-01-24 17:19:47,810 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 17:19:47,811 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-24 17:19:47,811 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-24 17:19:47,812 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2018-01-24 17:19:47,812 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 18 states. [2018-01-24 17:19:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:19:48,148 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2018-01-24 17:19:48,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 17:19:48,148 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2018-01-24 17:19:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:19:48,149 INFO L225 Difference]: With dead ends: 114 [2018-01-24 17:19:48,149 INFO L226 Difference]: Without dead ends: 68 [2018-01-24 17:19:48,150 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 17:19:48,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-24 17:19:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2018-01-24 17:19:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 17:19:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-01-24 17:19:48,156 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 23 [2018-01-24 17:19:48,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:19:48,156 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-01-24 17:19:48,156 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-24 17:19:48,156 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-01-24 17:19:48,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 17:19:48,157 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:48,157 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 17:19:48,157 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 17:19:48,157 INFO L82 PathProgramCache]: Analyzing trace with hash 614865, now seen corresponding path program 2 times [2018-01-24 17:19:48,157 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:48,158 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:48,158 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:19:48,159 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:48,159 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:48,176 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:48,504 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 17:19:48,505 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:48,524 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:19:48,524 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-24 17:19:48,524 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 17:19:48,524 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:48,524 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 17:19:48,530 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 17:19:48,531 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-24 17:19:48,542 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:48,546 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:48,546 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:19:48,548 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:19:48,564 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 17:19:48,564 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:19:48,576 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 17:19:48,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 17:19:48,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 17:19:48,586 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 17:19:48,857 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 17:19:48,858 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:19:49,777 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 1296 Received shutdown request... [2018-01-24 17:20:55,529 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-24 17:20:55,530 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-24 17:20:55,534 WARN L187 ceAbstractionStarter]: Timeout [2018-01-24 17:20:55,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 05:20:55 BoogieIcfgContainer [2018-01-24 17:20:55,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 17:20:55,535 INFO L168 Benchmark]: Toolchain (without parser) took 72200.28 ms. Allocated memory was 306.2 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 265.1 MB in the beginning and 964.9 MB in the end (delta: -699.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-01-24 17:20:55,536 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:20:55,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.86 ms. Allocated memory is still 306.2 MB. Free memory was 265.1 MB in the beginning and 252.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-24 17:20:55,537 INFO L168 Benchmark]: Boogie Preprocessor took 36.83 ms. Allocated memory is still 306.2 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:20:55,537 INFO L168 Benchmark]: RCFGBuilder took 296.61 ms. Allocated memory is still 306.2 MB. Free memory was 250.0 MB in the beginning and 230.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:20:55,538 INFO L168 Benchmark]: TraceAbstraction took 71640.69 ms. Allocated memory was 306.2 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 229.1 MB in the beginning and 964.9 MB in the end (delta: -735.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-01-24 17:20:55,539 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 219.86 ms. Allocated memory is still 306.2 MB. Free memory was 265.1 MB in the beginning and 252.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.83 ms. Allocated memory is still 306.2 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 296.61 ms. Allocated memory is still 306.2 MB. Free memory was 250.0 MB in the beginning and 230.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 71640.69 ms. Allocated memory was 306.2 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 229.1 MB in the beginning and 964.9 MB in the end (delta: -735.8 MB). Peak memory consumption was 1.3 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 : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 116 LocStat_NO_SUPPORTING_DISEQUALITIES : 13 LocStat_NO_DISJUNCTIONS : -40 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 29 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 5 TransStat_NO_DISJUNCTIONS : 31 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.615841 RENAME_VARIABLES(MILLISECONDS) : 0.591160 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.535561 PROJECTAWAY(MILLISECONDS) : 0.421154 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.000812 DISJOIN(MILLISECONDS) : 1.694250 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.645800 ADD_EQUALITY(MILLISECONDS) : 0.097419 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.016535 #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, 71.5s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 1.0s 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, 0.2s 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_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_17-20-55-548.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_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_17-20-55-548.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_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_17-20-55-548.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_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_17-20-55-548.csv Completed graceful shutdown