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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:03:45,236 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:03:45,237 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:03:45,248 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:03:45,248 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:03:45,249 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:03:45,250 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:03:45,251 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:03:45,252 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:03:45,253 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:03:45,254 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:03:45,254 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:03:45,255 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:03:45,255 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:03:45,256 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:03:45,258 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:03:45,259 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:03:45,260 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:03:45,261 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:03:45,262 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:03:45,264 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:03:45,267 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:03:45,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:03:45,267 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:03:45,275 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:03:45,276 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:03:45,277 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:03:45,277 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:03:45,277 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:03:45,277 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:03:45,277 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:03:45,277 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:03:45,278 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:03:45,278 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:03:45,278 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:03:45,278 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:03:45,278 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:03:45,278 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:03:45,278 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:03:45,279 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:03:45,279 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:03:45,279 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:03:45,279 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:03:45,279 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:03:45,279 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:03:45,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:03:45,280 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:03:45,280 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:03:45,280 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:03:45,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:03:45,310 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:03:45,313 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:03:45,314 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:03:45,314 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:03:45,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:45,438 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:03:45,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:03:45,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:45,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:03:45,444 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:03:45,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a67664e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45, skipping insertion in model container [2018-02-04 04:03:45,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,461 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:45,490 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:45,580 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:45,594 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:45,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45 WrapperNode [2018-02-04 04:03:45,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:45,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:03:45,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:03:45,600 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:03:45,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... [2018-02-04 04:03:45,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:03:45,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:03:45,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:03:45,627 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:03:45,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 04:03:45,665 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:03:45,665 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:03:45,665 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-02-04 04:03:45,666 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:03:45,666 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:03:45,666 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:03:45,666 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:03:45,666 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:03:45,666 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:03:45,666 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:03:45,666 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-02-04 04:03:45,667 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:03:45,667 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:03:45,667 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:03:45,810 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:03:45,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:45 BoogieIcfgContainer [2018-02-04 04:03:45,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:03:45,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:03:45,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:03:45,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:03:45,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:03:45" (1/3) ... [2018-02-04 04:03:45,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef57709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:45, skipping insertion in model container [2018-02-04 04:03:45,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:45" (2/3) ... [2018-02-04 04:03:45,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef57709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:45, skipping insertion in model container [2018-02-04 04:03:45,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:45" (3/3) ... [2018-02-04 04:03:45,815 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:45,822 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:03:45,830 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-02-04 04:03:45,856 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:03:45,856 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:03:45,856 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:03:45,856 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:03:45,857 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:03:45,857 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:03:45,857 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:03:45,857 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:03:45,857 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:03:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-02-04 04:03:45,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 04:03:45,876 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:45,877 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:45,877 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash -341828685, now seen corresponding path program 1 times [2018-02-04 04:03:45,883 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:45,884 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:45,915 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:45,915 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:45,915 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:45,952 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:46,015 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:46,015 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:46,016 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:03:46,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:03:46,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:03:46,026 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2018-02-04 04:03:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:46,084 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-02-04 04:03:46,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:03:46,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-02-04 04:03:46,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:46,091 INFO L225 Difference]: With dead ends: 44 [2018-02-04 04:03:46,091 INFO L226 Difference]: Without dead ends: 40 [2018-02-04 04:03:46,093 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-02-04 04:03:46,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-02-04 04:03:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-04 04:03:46,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-02-04 04:03:46,163 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 10 [2018-02-04 04:03:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:46,163 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-02-04 04:03:46,163 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:03:46,164 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-02-04 04:03:46,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 04:03:46,164 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:46,164 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:46,164 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:46,164 INFO L82 PathProgramCache]: Analyzing trace with hash -341826763, now seen corresponding path program 1 times [2018-02-04 04:03:46,164 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:46,164 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:46,165 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,165 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:46,166 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:46,174 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:46,194 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:46,194 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:03:46,196 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:03:46,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:03:46,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:03:46,196 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 3 states. [2018-02-04 04:03:46,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:46,238 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-02-04 04:03:46,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:03:46,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-02-04 04:03:46,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:46,239 INFO L225 Difference]: With dead ends: 39 [2018-02-04 04:03:46,240 INFO L226 Difference]: Without dead ends: 38 [2018-02-04 04:03:46,240 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:03:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-02-04 04:03:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-02-04 04:03:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-04 04:03:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-04 04:03:46,244 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 10 [2018-02-04 04:03:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:46,245 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-04 04:03:46,245 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:03:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-04 04:03:46,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:46,245 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:46,246 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:46,246 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:46,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1560659641, now seen corresponding path program 1 times [2018-02-04 04:03:46,246 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:46,246 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:46,247 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,247 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:46,248 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:46,261 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:46,291 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:46,291 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:03:46,291 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:03:46,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:03:46,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:03:46,292 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2018-02-04 04:03:46,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:46,355 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2018-02-04 04:03:46,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:03:46,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 04:03:46,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:46,357 INFO L225 Difference]: With dead ends: 36 [2018-02-04 04:03:46,357 INFO L226 Difference]: Without dead ends: 36 [2018-02-04 04:03:46,357 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-02-04 04:03:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-02-04 04:03:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-04 04:03:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-02-04 04:03:46,361 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2018-02-04 04:03:46,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:46,361 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-02-04 04:03:46,361 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:03:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-02-04 04:03:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:46,362 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:46,362 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:46,362 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:46,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1560659640, now seen corresponding path program 1 times [2018-02-04 04:03:46,363 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:46,363 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:46,364 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,364 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:46,364 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:46,375 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:46,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:46,427 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:46,427 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:46,428 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:46,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:46,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:46,428 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 5 states. [2018-02-04 04:03:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:46,464 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-02-04 04:03:46,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:03:46,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 04:03:46,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:46,466 INFO L225 Difference]: With dead ends: 35 [2018-02-04 04:03:46,466 INFO L226 Difference]: Without dead ends: 35 [2018-02-04 04:03:46,466 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:03:46,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-02-04 04:03:46,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-02-04 04:03:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-04 04:03:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-02-04 04:03:46,469 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 14 [2018-02-04 04:03:46,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:46,469 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-02-04 04:03:46,470 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-02-04 04:03:46,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:03:46,470 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:46,470 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:46,470 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:46,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1121108344, now seen corresponding path program 1 times [2018-02-04 04:03:46,471 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:46,471 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:46,472 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,472 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:46,472 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:46,483 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:46,506 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:46,506 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:46,506 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:46,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:46,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:46,507 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2018-02-04 04:03:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:46,552 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-02-04 04:03:46,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:03:46,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-04 04:03:46,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:46,553 INFO L225 Difference]: With dead ends: 34 [2018-02-04 04:03:46,553 INFO L226 Difference]: Without dead ends: 34 [2018-02-04 04:03:46,553 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:03:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-02-04 04:03:46,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-02-04 04:03:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-02-04 04:03:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-02-04 04:03:46,556 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 18 [2018-02-04 04:03:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:46,556 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-02-04 04:03:46,557 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-02-04 04:03:46,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:03:46,557 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:46,557 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:46,557 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:46,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1121108343, now seen corresponding path program 1 times [2018-02-04 04:03:46,558 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:46,558 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:46,559 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,559 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:46,559 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:46,569 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:46,638 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:46,638 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:03:46,638 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:03:46,639 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:03:46,639 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:03:46,639 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 8 states. [2018-02-04 04:03:46,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:46,694 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-02-04 04:03:46,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:03:46,694 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-02-04 04:03:46,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:46,697 INFO L225 Difference]: With dead ends: 44 [2018-02-04 04:03:46,697 INFO L226 Difference]: Without dead ends: 44 [2018-02-04 04:03:46,697 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:03:46,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-04 04:03:46,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2018-02-04 04:03:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-04 04:03:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-02-04 04:03:46,700 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 18 [2018-02-04 04:03:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:46,700 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-02-04 04:03:46,700 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:03:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-02-04 04:03:46,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:03:46,700 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:46,700 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:46,700 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:46,700 INFO L82 PathProgramCache]: Analyzing trace with hash -394620318, now seen corresponding path program 1 times [2018-02-04 04:03:46,700 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:46,701 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:46,701 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,701 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:46,701 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:46,714 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:46,719 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:03:46,728 INFO L168 Benchmark]: Toolchain (without parser) took 1289.68 ms. Allocated memory was 407.9 MB in the beginning and 618.1 MB in the end (delta: 210.2 MB). Free memory was 366.1 MB in the beginning and 510.1 MB in the end (delta: -144.0 MB). Peak memory consumption was 66.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:46,729 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 407.9 MB. Free memory is still 371.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:46,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.69 ms. Allocated memory is still 407.9 MB. Free memory was 364.8 MB in the beginning and 354.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:46,729 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 ms. Allocated memory is still 407.9 MB. Free memory was 354.2 MB in the beginning and 352.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:46,729 INFO L168 Benchmark]: RCFGBuilder took 184.35 ms. Allocated memory is still 407.9 MB. Free memory was 352.9 MB in the beginning and 336.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:46,729 INFO L168 Benchmark]: TraceAbstraction took 915.95 ms. Allocated memory was 407.9 MB in the beginning and 618.1 MB in the end (delta: 210.2 MB). Free memory was 334.9 MB in the beginning and 510.1 MB in the end (delta: -175.2 MB). Peak memory consumption was 35.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:46,730 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 407.9 MB. Free memory is still 371.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 159.69 ms. Allocated memory is still 407.9 MB. Free memory was 364.8 MB in the beginning and 354.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.70 ms. Allocated memory is still 407.9 MB. Free memory was 354.2 MB in the beginning and 352.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 184.35 ms. Allocated memory is still 407.9 MB. Free memory was 352.9 MB in the beginning and 336.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 915.95 ms. Allocated memory was 407.9 MB in the beginning and 618.1 MB in the end (delta: 210.2 MB). Free memory was 334.9 MB in the beginning and 510.1 MB in the end (delta: -175.2 MB). Peak memory consumption was 35.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-03-46-736.csv Received shutdown request...