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_smtcomp.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 06:04:15,993 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 06:04:15,995 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 06:04:16,010 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 06:04:16,011 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 06:04:16,012 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 06:04:16,013 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 06:04:16,014 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 06:04:16,016 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 06:04:16,017 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 06:04:16,018 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 06:04:16,019 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 06:04:16,020 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 06:04:16,021 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 06:04:16,022 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 06:04:16,024 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 06:04:16,026 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 06:04:16,029 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 06:04:16,030 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 06:04:16,031 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 06:04:16,034 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 06:04:16,034 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 06:04:16,034 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 06:04:16,035 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 06:04:16,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 06:04:16,038 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 06:04:16,038 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 06:04:16,039 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 06:04:16,039 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 06:04:16,039 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 06:04:16,040 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 06:04:16,040 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_smtcomp.epf [2018-01-25 06:04:16,048 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 06:04:16,048 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 06:04:16,049 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 06:04:16,049 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 06:04:16,049 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 06:04:16,050 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 06:04:16,050 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 06:04:16,050 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 06:04:16,050 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 06:04:16,050 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 06:04:16,051 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 06:04:16,051 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 06:04:16,051 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 06:04:16,051 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 06:04:16,051 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 06:04:16,051 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 06:04:16,051 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 06:04:16,052 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 06:04:16,052 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 06:04:16,052 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 06:04:16,052 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 06:04:16,052 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 06:04:16,052 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 06:04:16,053 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 06:04:16,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 06:04:16,053 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 06:04:16,053 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 06:04:16,053 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 06:04:16,053 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 06:04:16,054 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 06:04:16,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 06:04:16,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 06:04:16,054 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 06:04:16,054 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 06:04:16,055 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 06:04:16,055 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 06:04:16,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 06:04:16,098 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 06:04:16,101 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 06:04:16,103 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 06:04:16,103 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 06:04:16,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i [2018-01-25 06:04:16,295 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 06:04:16,302 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 06:04:16,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 06:04:16,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 06:04:16,311 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 06:04:16,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142f1c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16, skipping insertion in model container [2018-01-25 06:04:16,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,336 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:04:16,390 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:04:16,517 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:04:16,534 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:04:16,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16 WrapperNode [2018-01-25 06:04:16,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 06:04:16,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 06:04:16,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 06:04:16,542 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 06:04:16,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... [2018-01-25 06:04:16,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 06:04:16,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 06:04:16,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 06:04:16,583 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 06:04:16,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 06:04:16,627 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 06:04:16,628 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 06:04:16,628 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 06:04:16,628 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_17 [2018-01-25 06:04:16,628 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 06:04:16,628 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 06:04:16,628 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 06:04:16,628 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 06:04:16,628 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_17 [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 06:04:16,629 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 06:04:16,844 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 06:04:16,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:04:16 BoogieIcfgContainer [2018-01-25 06:04:16,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 06:04:16,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 06:04:16,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 06:04:16,848 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 06:04:16,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 06:04:16" (1/3) ... [2018-01-25 06:04:16,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fe88eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:04:16, skipping insertion in model container [2018-01-25 06:04:16,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:04:16" (2/3) ... [2018-01-25 06:04:16,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fe88eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:04:16, skipping insertion in model container [2018-01-25 06:04:16,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:04:16" (3/3) ... [2018-01-25 06:04:16,851 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3_false-valid-memtrack.i [2018-01-25 06:04:16,857 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 06:04:16,864 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-25 06:04:16,910 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 06:04:16,911 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 06:04:16,911 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 06:04:16,911 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 06:04:16,911 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 06:04:16,911 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 06:04:16,912 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 06:04:16,912 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 06:04:16,913 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 06:04:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-01-25 06:04:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-25 06:04:16,940 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:16,941 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:04:16,942 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]=== [2018-01-25 06:04:16,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1525029176, now seen corresponding path program 1 times [2018-01-25 06:04:16,947 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:16,993 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:16,993 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:16,993 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:16,993 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:17,043 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:17,143 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:04:17,143 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 06:04:17,143 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:04:17,147 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 06:04:17,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 06:04:17,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 06:04:17,165 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2018-01-25 06:04:17,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:04:17,383 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2018-01-25 06:04:17,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 06:04:17,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-25 06:04:17,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:04:17,398 INFO L225 Difference]: With dead ends: 148 [2018-01-25 06:04:17,398 INFO L226 Difference]: Without dead ends: 96 [2018-01-25 06:04:17,402 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 [2018-01-25 06:04:17,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-01-25 06:04:17,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 63. [2018-01-25 06:04:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-25 06:04:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2018-01-25 06:04:17,454 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 17 [2018-01-25 06:04:17,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:04:17,455 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2018-01-25 06:04:17,455 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 06:04:17,455 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2018-01-25 06:04:17,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-25 06:04:17,457 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:17,457 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:04:17,457 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]=== [2018-01-25 06:04:17,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1524292544, now seen corresponding path program 1 times [2018-01-25 06:04:17,458 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:17,460 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,460 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:17,460 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,460 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:17,478 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:17,542 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:04:17,542 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 06:04:17,542 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:04:17,544 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 06:04:17,545 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 06:04:17,545 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:04:17,545 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand 5 states. [2018-01-25 06:04:17,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:04:17,572 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2018-01-25 06:04:17,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 06:04:17,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-25 06:04:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:04:17,575 INFO L225 Difference]: With dead ends: 116 [2018-01-25 06:04:17,575 INFO L226 Difference]: Without dead ends: 63 [2018-01-25 06:04:17,576 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 [2018-01-25 06:04:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-25 06:04:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-01-25 06:04:17,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-25 06:04:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2018-01-25 06:04:17,583 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 17 [2018-01-25 06:04:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:04:17,583 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2018-01-25 06:04:17,583 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 06:04:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-01-25 06:04:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 06:04:17,584 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:17,585 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:04:17,585 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]=== [2018-01-25 06:04:17,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1268239334, now seen corresponding path program 1 times [2018-01-25 06:04:17,585 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:17,587 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,587 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:17,587 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,587 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:17,606 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:17,665 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:04:17,665 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 06:04:17,665 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:04:17,665 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 06:04:17,666 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 06:04:17,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 06:04:17,666 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand 6 states. [2018-01-25 06:04:17,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:04:17,723 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-01-25 06:04:17,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 06:04:17,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-25 06:04:17,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:04:17,725 INFO L225 Difference]: With dead ends: 65 [2018-01-25 06:04:17,725 INFO L226 Difference]: Without dead ends: 61 [2018-01-25 06:04:17,726 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 [2018-01-25 06:04:17,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-25 06:04:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-01-25 06:04:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-25 06:04:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-01-25 06:04:17,731 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 19 [2018-01-25 06:04:17,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:04:17,732 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-01-25 06:04:17,732 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 06:04:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-01-25 06:04:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 06:04:17,733 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:17,733 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:04:17,733 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]=== [2018-01-25 06:04:17,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975966, now seen corresponding path program 1 times [2018-01-25 06:04:17,733 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:17,735 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,735 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:17,736 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,736 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:17,751 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:17,807 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:04:17,807 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 06:04:17,807 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:04:17,808 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 06:04:17,808 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 06:04:17,808 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 06:04:17,808 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 6 states. [2018-01-25 06:04:17,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:04:17,939 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-01-25 06:04:17,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 06:04:17,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-25 06:04:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:04:17,940 INFO L225 Difference]: With dead ends: 61 [2018-01-25 06:04:17,940 INFO L226 Difference]: Without dead ends: 60 [2018-01-25 06:04:17,940 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 [2018-01-25 06:04:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-25 06:04:17,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-01-25 06:04:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-01-25 06:04:17,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-01-25 06:04:17,946 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 19 [2018-01-25 06:04:17,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:04:17,946 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-01-25 06:04:17,946 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 06:04:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-01-25 06:04:17,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 06:04:17,946 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:17,947 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:04:17,947 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]=== [2018-01-25 06:04:17,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975965, now seen corresponding path program 1 times [2018-01-25 06:04:17,947 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:17,948 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,948 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:17,948 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:17,948 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:17,966 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:18,346 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:04:18,346 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 06:04:18,346 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:04:18,346 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 06:04:18,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 06:04:18,347 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-01-25 06:04:18,347 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 9 states. [2018-01-25 06:04:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:04:18,574 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2018-01-25 06:04:18,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-25 06:04:18,574 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-25 06:04:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:04:18,576 INFO L225 Difference]: With dead ends: 110 [2018-01-25 06:04:18,576 INFO L226 Difference]: Without dead ends: 64 [2018-01-25 06:04:18,577 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 [2018-01-25 06:04:18,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-25 06:04:18,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2018-01-25 06:04:18,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-25 06:04:18,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-01-25 06:04:18,585 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 19 [2018-01-25 06:04:18,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:04:18,585 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-01-25 06:04:18,585 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 06:04:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-01-25 06:04:18,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 06:04:18,586 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:18,587 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] [2018-01-25 06:04:18,587 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]=== [2018-01-25 06:04:18,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1174934022, now seen corresponding path program 1 times [2018-01-25 06:04:18,587 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:18,588 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:18,588 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:18,589 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:18,589 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:18,605 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:18,922 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:04:18,922 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:04:18,924 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-25 06:04:18,926 INFO L201 CegarAbsIntRunner]: [3], [6], [7], [8], [10], [11], [12], [69], [71], [74], [78], [83], [84], [86], [88], [101], [105], [106], [107], [109], [110] [2018-01-25 06:04:18,971 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:04:18,971 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 06:04:19,804 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 06:04:19,806 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. [2018-01-25 06:04:19,819 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-25 06:04:19,819 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:04:19,819 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 [2018-01-25 06:04:19,835 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:19,835 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-25 06:04:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:19,874 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:04:19,989 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 [2018-01-25 06:04:19,991 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:04:20,005 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 [2018-01-25 06:04:20,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-25 06:04:20,017 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-25 06:04:20,018 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-25 06:04:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:20,285 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:04:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:20,841 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:04:20,841 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 [2018-01-25 06:04:20,847 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:20,847 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-25 06:04:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:20,878 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:04:20,905 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 [2018-01-25 06:04:20,905 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:04:20,932 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 [2018-01-25 06:04:20,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-25 06:04:20,944 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-25 06:04:20,944 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-25 06:04:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:21,035 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:04:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:21,493 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-25 06:04:21,493 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10, 9, 10] total 31 [2018-01-25 06:04:21,493 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-25 06:04:21,494 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-25 06:04:21,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-25 06:04:21,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2018-01-25 06:04:21,494 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 18 states. [2018-01-25 06:04:21,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:04:21,857 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2018-01-25 06:04:21,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 06:04:21,857 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2018-01-25 06:04:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:04:21,858 INFO L225 Difference]: With dead ends: 114 [2018-01-25 06:04:21,858 INFO L226 Difference]: Without dead ends: 68 [2018-01-25 06:04:21,859 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 [2018-01-25 06:04:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-25 06:04:21,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2018-01-25 06:04:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-25 06:04:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-01-25 06:04:21,865 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 23 [2018-01-25 06:04:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:04:21,866 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-01-25 06:04:21,866 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-25 06:04:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-01-25 06:04:21,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-25 06:04:21,866 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:21,866 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] [2018-01-25 06:04:21,866 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]=== [2018-01-25 06:04:21,867 INFO L82 PathProgramCache]: Analyzing trace with hash 614865, now seen corresponding path program 2 times [2018-01-25 06:04:21,867 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:21,868 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:21,868 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:04:21,868 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:21,869 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:21,886 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:22,153 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:04:22,153 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:04:22,153 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-25 06:04:22,153 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-25 06:04:22,154 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:04:22,154 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 [2018-01-25 06:04:22,159 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-25 06:04:22,159 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-25 06:04:22,170 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:04:22,174 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:04:22,175 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:04:22,177 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:04:22,192 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 [2018-01-25 06:04:22,193 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:04:22,204 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 [2018-01-25 06:04:22,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-25 06:04:22,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-25 06:04:22,214 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-25 06:04:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:04:22,486 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:04:23,323 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 1296 Received shutdown request... [2018-01-25 06:05:28,349 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-25 06:05:28,349 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-25 06:05:28,352 WARN L187 ceAbstractionStarter]: Timeout [2018-01-25 06:05:28,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 06:05:28 BoogieIcfgContainer [2018-01-25 06:05:28,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 06:05:28,354 INFO L168 Benchmark]: Toolchain (without parser) took 72058.06 ms. Allocated memory was 305.1 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 264.2 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-01-25 06:05:28,354 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 06:05:28,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.96 ms. Allocated memory is still 305.1 MB. Free memory was 264.2 MB in the beginning and 250.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-25 06:05:28,354 INFO L168 Benchmark]: Boogie Preprocessor took 40.70 ms. Allocated memory is still 305.1 MB. Free memory was 250.2 MB in the beginning and 248.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 06:05:28,355 INFO L168 Benchmark]: RCFGBuilder took 261.72 ms. Allocated memory is still 305.1 MB. Free memory was 248.2 MB in the beginning and 229.6 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. [2018-01-25 06:05:28,355 INFO L168 Benchmark]: TraceAbstraction took 71507.38 ms. Allocated memory was 305.1 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 227.6 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-01-25 06:05:28,356 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 238.96 ms. Allocated memory is still 305.1 MB. Free memory was 264.2 MB in the beginning and 250.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.70 ms. Allocated memory is still 305.1 MB. Free memory was 250.2 MB in the beginning and 248.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 261.72 ms. Allocated memory is still 305.1 MB. Free memory was 248.2 MB in the beginning and 229.6 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 71507.38 ms. Allocated memory was 305.1 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 227.6 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.5 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) : 4.123755 RENAME_VARIABLES(MILLISECONDS) : 3.209509 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 3.995686 PROJECTAWAY(MILLISECONDS) : 0.737032 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.097491 DISJOIN(MILLISECONDS) : 1.696220 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 3.292701 ADD_EQUALITY(MILLISECONDS) : 0.052929 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.015306 #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, 71.4s 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, 0.8s 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, 2.5s 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_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_06-05-28-365.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_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-25_06-05-28-365.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_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_06-05-28-365.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_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_06-05-28-365.csv Completed graceful shutdown