java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:36:04,174 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:36:04,177 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:36:04,191 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:36:04,191 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:36:04,192 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:36:04,193 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:36:04,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:36:04,195 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:36:04,196 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:36:04,197 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:36:04,197 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:36:04,197 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:36:04,198 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:36:04,199 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:36:04,201 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:36:04,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:36:04,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:36:04,207 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:36:04,209 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:36:04,211 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 03:36:04,212 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 03:36:04,212 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 03:36:04,213 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 03:36:04,214 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 03:36:04,215 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 03:36:04,216 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 03:36:04,216 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 03:36:04,217 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 03:36:04,217 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 03:36:04,218 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 03:36:04,218 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-25 03:36:04,228 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:36:04,228 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:36:04,229 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:36:04,229 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:36:04,230 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:36:04,230 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:36:04,230 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:36:04,230 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:36:04,230 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:36:04,231 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:36:04,231 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:36:04,231 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:36:04,232 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:36:04,232 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:36:04,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:36:04,232 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:36:04,232 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:36:04,233 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:36:04,233 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:36:04,233 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:36:04,233 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:36:04,233 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:36:04,234 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:36:04,234 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:36:04,234 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:36:04,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:36:04,234 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:36:04,235 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:36:04,235 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:36:04,235 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:36:04,235 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:36:04,235 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:36:04,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:36:04,236 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:36:04,236 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:36:04,237 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:36:04,237 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:36:04,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:36:04,288 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:36:04,293 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:36:04,295 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:36:04,295 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:36:04,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i [2018-01-25 03:36:04,527 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:36:04,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:36:04,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:36:04,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:36:04,544 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:36:04,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c336041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04, skipping insertion in model container [2018-01-25 03:36:04,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,570 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:36:04,623 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:36:04,732 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:36:04,744 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:36:04,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04 WrapperNode [2018-01-25 03:36:04,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:36:04,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:36:04,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:36:04,751 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:36:04,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (1/1) ... [2018-01-25 03:36:04,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:36:04,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:36:04,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:36:04,784 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:36:04,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (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 03:36:04,837 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:36:04,837 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:36:04,838 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 03:36:04,838 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 03:36:04,838 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:36:04,838 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:36:04,838 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:36:04,838 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:36:04,838 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:36:04,838 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:36:04,838 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 03:36:04,838 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 03:36:04,839 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 03:36:04,839 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:36:04,839 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:36:04,839 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:36:05,025 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:36:05,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:36:05 BoogieIcfgContainer [2018-01-25 03:36:05,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:36:05,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:36:05,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:36:05,030 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:36:05,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:36:04" (1/3) ... [2018-01-25 03:36:05,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba400e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:36:05, skipping insertion in model container [2018-01-25 03:36:05,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:36:04" (2/3) ... [2018-01-25 03:36:05,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba400e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:36:05, skipping insertion in model container [2018-01-25 03:36:05,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:36:05" (3/3) ... [2018-01-25 03:36:05,035 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test1_true-valid-memsafety_true-termination.i [2018-01-25 03:36:05,045 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:36:05,053 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-25 03:36:05,091 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:36:05,091 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:36:05,092 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:36:05,092 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:36:05,092 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:36:05,092 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:36:05,092 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:36:05,092 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:36:05,093 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:36:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-25 03:36:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 03:36:05,122 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:36:05,123 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:36:05,123 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-25 03:36:05,127 INFO L82 PathProgramCache]: Analyzing trace with hash 169906871, now seen corresponding path program 1 times [2018-01-25 03:36:05,129 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:36:05,183 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,183 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:36:05,184 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,184 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:36:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:36:05,235 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:36:05,348 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 03:36:05,350 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:36:05,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:36:05,351 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:36:05,353 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:36:05,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:36:05,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:36:05,367 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-01-25 03:36:05,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:36:05,479 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-01-25 03:36:05,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:36:05,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-01-25 03:36:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:36:05,489 INFO L225 Difference]: With dead ends: 30 [2018-01-25 03:36:05,490 INFO L226 Difference]: Without dead ends: 26 [2018-01-25 03:36:05,493 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 03:36:05,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-01-25 03:36:05,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-01-25 03:36:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-01-25 03:36:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-01-25 03:36:05,523 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2018-01-25 03:36:05,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:36:05,523 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-01-25 03:36:05,523 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:36:05,523 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-01-25 03:36:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 03:36:05,524 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:36:05,524 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:36:05,524 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-25 03:36:05,525 INFO L82 PathProgramCache]: Analyzing trace with hash 169906872, now seen corresponding path program 1 times [2018-01-25 03:36:05,525 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:36:05,527 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,527 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:36:05,527 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,527 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:36:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:36:05,542 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:36:05,601 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 03:36:05,601 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:36:05,601 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:36:05,601 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:36:05,603 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:36:05,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:36:05,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:36:05,604 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2018-01-25 03:36:05,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:36:05,647 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-01-25 03:36:05,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:36:05,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-01-25 03:36:05,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:36:05,650 INFO L225 Difference]: With dead ends: 28 [2018-01-25 03:36:05,651 INFO L226 Difference]: Without dead ends: 27 [2018-01-25 03:36:05,652 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 03:36:05,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-25 03:36:05,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-01-25 03:36:05,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-01-25 03:36:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-01-25 03:36:05,657 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 13 [2018-01-25 03:36:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:36:05,657 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-01-25 03:36:05,657 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:36:05,657 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-01-25 03:36:05,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 03:36:05,658 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:36:05,658 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:36:05,658 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-25 03:36:05,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862325, now seen corresponding path program 1 times [2018-01-25 03:36:05,659 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:36:05,661 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,661 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:36:05,661 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,661 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:36:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:36:05,685 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:36:05,748 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 03:36:05,748 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:36:05,749 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:36:05,749 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:36:05,749 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:36:05,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:36:05,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:36:05,750 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-01-25 03:36:05,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:36:05,791 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-01-25 03:36:05,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 03:36:05,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-01-25 03:36:05,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:36:05,792 INFO L225 Difference]: With dead ends: 25 [2018-01-25 03:36:05,792 INFO L226 Difference]: Without dead ends: 24 [2018-01-25 03:36:05,792 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 03:36:05,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-25 03:36:05,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-25 03:36:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-25 03:36:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-01-25 03:36:05,796 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 15 [2018-01-25 03:36:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:36:05,797 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-01-25 03:36:05,797 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:36:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-01-25 03:36:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 03:36:05,798 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:36:05,798 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:36:05,798 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-25 03:36:05,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862326, now seen corresponding path program 1 times [2018-01-25 03:36:05,798 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:36:05,800 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,800 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:36:05,800 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,800 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:36:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:36:05,814 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:36:05,883 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 03:36:05,883 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:36:05,883 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:36:05,884 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:36:05,884 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:36:05,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:36:05,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:36:05,885 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-01-25 03:36:05,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:36:05,946 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-01-25 03:36:05,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:36:05,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-01-25 03:36:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:36:05,948 INFO L225 Difference]: With dead ends: 24 [2018-01-25 03:36:05,948 INFO L226 Difference]: Without dead ends: 23 [2018-01-25 03:36:05,948 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 03:36:05,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-01-25 03:36:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-01-25 03:36:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-01-25 03:36:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-01-25 03:36:05,952 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2018-01-25 03:36:05,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:36:05,952 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-01-25 03:36:05,952 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:36:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-01-25 03:36:05,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 03:36:05,953 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:36:05,953 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:36:05,953 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-25 03:36:05,953 INFO L82 PathProgramCache]: Analyzing trace with hash -2070856781, now seen corresponding path program 1 times [2018-01-25 03:36:05,953 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:36:05,955 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,955 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:36:05,955 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:05,955 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:36:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:36:05,966 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:36:06,038 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 03:36:06,039 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:36:06,039 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:36:06,039 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:36:06,040 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:36:06,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:36:06,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:36:06,040 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-01-25 03:36:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:36:06,123 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-01-25 03:36:06,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:36:06,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-01-25 03:36:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:36:06,125 INFO L225 Difference]: With dead ends: 27 [2018-01-25 03:36:06,125 INFO L226 Difference]: Without dead ends: 19 [2018-01-25 03:36:06,125 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:36:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-01-25 03:36:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-01-25 03:36:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-01-25 03:36:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-01-25 03:36:06,129 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2018-01-25 03:36:06,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:36:06,129 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-01-25 03:36:06,130 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:36:06,130 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-01-25 03:36:06,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-25 03:36:06,130 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:36:06,130 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:36:06,131 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-25 03:36:06,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1341515893, now seen corresponding path program 1 times [2018-01-25 03:36:06,131 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:36:06,132 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:06,132 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:36:06,133 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:36:06,133 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:36:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:36:06,151 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:36:06,421 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 03:36:06,421 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:36:06,421 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 03:36:06,421 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:36:06,422 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 03:36:06,422 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 03:36:06,422 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:36:06,422 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 7 states. [2018-01-25 03:36:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:36:06,532 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-01-25 03:36:06,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 03:36:06,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-01-25 03:36:06,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:36:06,533 INFO L225 Difference]: With dead ends: 19 [2018-01-25 03:36:06,533 INFO L226 Difference]: Without dead ends: 0 [2018-01-25 03:36:06,534 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:36:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-25 03:36:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-25 03:36:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-25 03:36:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-25 03:36:06,535 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-01-25 03:36:06,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:36:06,535 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-25 03:36:06,535 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 03:36:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-25 03:36:06,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-25 03:36:06,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-25 03:36:06,602 INFO L397 ceAbstractionStarter]: At program point ldv_mallocENTRY(lines 1072 1078) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-25 03:36:06,603 INFO L401 ceAbstractionStarter]: For program point L1073(lines 1073 1077) no Hoare annotation was computed. [2018-01-25 03:36:06,603 INFO L401 ceAbstractionStarter]: For program point L1074'(line 1074) no Hoare annotation was computed. [2018-01-25 03:36:06,603 INFO L401 ceAbstractionStarter]: For program point ldv_mallocEXIT(lines 1072 1078) no Hoare annotation was computed. [2018-01-25 03:36:06,603 INFO L401 ceAbstractionStarter]: For program point ldv_mallocFINAL(lines 1072 1078) no Hoare annotation was computed. [2018-01-25 03:36:06,604 INFO L401 ceAbstractionStarter]: For program point L1074(line 1074) no Hoare annotation was computed. [2018-01-25 03:36:06,604 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,604 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 1440) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-25 03:36:06,604 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,604 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 1440) the Hoare annotation is: true [2018-01-25 03:36:06,604 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,605 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 1440) the Hoare annotation is: true [2018-01-25 03:36:06,605 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,605 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 1438 1440) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-25 03:36:06,605 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 1438 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,605 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 1438 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,605 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 1438 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,606 INFO L397 ceAbstractionStarter]: At program point entry_pointENTRY(lines 1433 1436) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-25 03:36:06,606 INFO L401 ceAbstractionStarter]: For program point entry_pointErr0RequiresViolation(lines 1 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,606 INFO L401 ceAbstractionStarter]: For program point entry_pointFINAL(lines 1433 1436) no Hoare annotation was computed. [2018-01-25 03:36:06,606 INFO L401 ceAbstractionStarter]: For program point L1434(line 1434) no Hoare annotation was computed. [2018-01-25 03:36:06,607 INFO L401 ceAbstractionStarter]: For program point L1435(line 1435) no Hoare annotation was computed. [2018-01-25 03:36:06,607 INFO L401 ceAbstractionStarter]: For program point entry_pointErr1RequiresViolation(lines 1 1440) no Hoare annotation was computed. [2018-01-25 03:36:06,607 INFO L401 ceAbstractionStarter]: For program point entry_pointEXIT(lines 1433 1436) no Hoare annotation was computed. [2018-01-25 03:36:06,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 03:36:06 BoogieIcfgContainer [2018-01-25 03:36:06,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 03:36:06,613 INFO L168 Benchmark]: Toolchain (without parser) took 2084.46 ms. Allocated memory was 307.2 MB in the beginning and 468.7 MB in the end (delta: 161.5 MB). Free memory was 266.1 MB in the beginning and 354.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 73.4 MB. Max. memory is 5.3 GB. [2018-01-25 03:36:06,614 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 03:36:06,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.50 ms. Allocated memory is still 307.2 MB. Free memory was 266.1 MB in the beginning and 254.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-25 03:36:06,615 INFO L168 Benchmark]: Boogie Preprocessor took 32.85 ms. Allocated memory is still 307.2 MB. Free memory was 254.0 MB in the beginning and 252.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 03:36:06,615 INFO L168 Benchmark]: RCFGBuilder took 242.31 ms. Allocated memory is still 307.2 MB. Free memory was 252.0 MB in the beginning and 239.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-25 03:36:06,616 INFO L168 Benchmark]: TraceAbstraction took 1584.42 ms. Allocated memory was 307.2 MB in the beginning and 468.7 MB in the end (delta: 161.5 MB). Free memory was 239.0 MB in the beginning and 354.2 MB in the end (delta: -115.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 5.3 GB. [2018-01-25 03:36:06,618 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 214.50 ms. Allocated memory is still 307.2 MB. Free memory was 266.1 MB in the beginning and 254.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.85 ms. Allocated memory is still 307.2 MB. Free memory was 254.0 MB in the beginning and 252.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 242.31 ms. Allocated memory is still 307.2 MB. Free memory was 252.0 MB in the beginning and 239.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1584.42 ms. Allocated memory was 307.2 MB in the beginning and 468.7 MB in the end (delta: 161.5 MB). Free memory was 239.0 MB in the beginning and 354.2 MB in the end (delta: -115.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1438]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 3 error locations. SAFE Result, 1.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 103 SDtfs, 19 SDslu, 290 SDs, 0 SdLazy, 159 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_03-36-06-627.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_03-36-06-627.csv Received shutdown request...