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/cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:03:15,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:03:15,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:03:15,350 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:03:15,350 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:03:15,351 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:03:15,352 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:03:15,353 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:03:15,354 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:03:15,355 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:03:15,356 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:03:15,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:03:15,357 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:03:15,358 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:03:15,358 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:03:15,360 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:03:15,362 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:03:15,363 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:03:15,364 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:03:15,365 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:03:15,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:03:15,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:03:15,371 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:03:15,371 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 04:03:15,381 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:03:15,381 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:03:15,382 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:03:15,382 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:03:15,382 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:03:15,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:03:15,383 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:03:15,383 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:03:15,383 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:03:15,383 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:03:15,383 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:03:15,384 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:03:15,384 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:03:15,384 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:03:15,384 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:03:15,384 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:03:15,384 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:03:15,384 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:03:15,385 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:03:15,385 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:03:15,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:03:15,385 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:03:15,385 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:03:15,385 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:03:15,386 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:03:15,414 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:03:15,425 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:03:15,430 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:03:15,431 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:03:15,431 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:03:15,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:15,559 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:03:15,560 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:03:15,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:15,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:03:15,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:03:15,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3ffa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15, skipping insertion in model container [2018-02-04 04:03:15,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,580 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:15,606 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:15,695 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:15,706 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:15,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15 WrapperNode [2018-02-04 04:03:15,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:15,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:03:15,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:03:15,711 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:03:15,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (1/1) ... [2018-02-04 04:03:15,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:03:15,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:03:15,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:03:15,734 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:03:15,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (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 04:03:15,771 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:03:15,771 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:03:15,771 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-02-04 04:03:15,771 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:03:15,771 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:03:15,771 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:03:15,771 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:03:15,771 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:03:15,771 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:03:15,771 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:03:15,772 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-02-04 04:03:15,772 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:03:15,772 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:03:15,772 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:03:15,913 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:03:15,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:15 BoogieIcfgContainer [2018-02-04 04:03:15,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:03:15,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:03:15,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:03:15,916 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:03:15,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:03:15" (1/3) ... [2018-02-04 04:03:15,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f09bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:15, skipping insertion in model container [2018-02-04 04:03:15,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:15" (2/3) ... [2018-02-04 04:03:15,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f09bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:15, skipping insertion in model container [2018-02-04 04:03:15,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:15" (3/3) ... [2018-02-04 04:03:15,918 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:15,923 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:03:15,928 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-02-04 04:03:15,960 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:03:15,960 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:03:15,960 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:03:15,960 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:03:15,960 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:03:15,960 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:03:15,960 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:03:15,960 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:03:15,961 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:03:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-02-04 04:03:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 04:03:15,976 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:15,977 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:15,977 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:15,981 INFO L82 PathProgramCache]: Analyzing trace with hash -341828685, now seen corresponding path program 1 times [2018-02-04 04:03:15,982 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:15,982 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:16,012 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,012 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:16,012 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:16,051 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:16,094 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 04:03:16,096 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:16,096 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:16,097 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:03:16,105 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:03:16,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:03:16,107 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2018-02-04 04:03:16,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:16,155 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-02-04 04:03:16,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:03:16,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-02-04 04:03:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:16,219 INFO L225 Difference]: With dead ends: 44 [2018-02-04 04:03:16,220 INFO L226 Difference]: Without dead ends: 40 [2018-02-04 04:03:16,221 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 04:03:16,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-02-04 04:03:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-02-04 04:03:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-04 04:03:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-02-04 04:03:16,244 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 10 [2018-02-04 04:03:16,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:16,244 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-02-04 04:03:16,244 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:03:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-02-04 04:03:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 04:03:16,244 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:16,244 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:16,245 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash -341826763, now seen corresponding path program 1 times [2018-02-04 04:03:16,245 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:16,245 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:16,246 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,246 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:16,246 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:16,253 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:16,265 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 04:03:16,265 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:16,265 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:03:16,266 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:03:16,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:03:16,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:03:16,267 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 3 states. [2018-02-04 04:03:16,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:16,296 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-02-04 04:03:16,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:03:16,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-02-04 04:03:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:16,300 INFO L225 Difference]: With dead ends: 39 [2018-02-04 04:03:16,300 INFO L226 Difference]: Without dead ends: 38 [2018-02-04 04:03:16,301 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 04:03:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-02-04 04:03:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-02-04 04:03:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-04 04:03:16,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-04 04:03:16,305 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 10 [2018-02-04 04:03:16,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:16,305 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-04 04:03:16,305 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:03:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-04 04:03:16,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:16,305 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:16,305 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:16,305 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:16,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1560659641, now seen corresponding path program 1 times [2018-02-04 04:03:16,306 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:16,306 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:16,307 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,307 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:16,307 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:16,321 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:16,354 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 04:03:16,354 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:16,355 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:03:16,355 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:03:16,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:03:16,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:03:16,355 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2018-02-04 04:03:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:16,411 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2018-02-04 04:03:16,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:03:16,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 04:03:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:16,412 INFO L225 Difference]: With dead ends: 36 [2018-02-04 04:03:16,412 INFO L226 Difference]: Without dead ends: 36 [2018-02-04 04:03:16,412 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 04:03:16,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-02-04 04:03:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-02-04 04:03:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-04 04:03:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-02-04 04:03:16,416 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2018-02-04 04:03:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:16,416 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-02-04 04:03:16,416 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:03:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-02-04 04:03:16,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:16,417 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:16,417 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:16,417 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:16,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1560659640, now seen corresponding path program 1 times [2018-02-04 04:03:16,417 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:16,417 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:16,418 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,418 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:16,419 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:16,431 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:16,496 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 04:03:16,496 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:16,496 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:16,496 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:16,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:16,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:16,497 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 5 states. [2018-02-04 04:03:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:16,537 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-02-04 04:03:16,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:03:16,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 04:03:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:16,538 INFO L225 Difference]: With dead ends: 35 [2018-02-04 04:03:16,538 INFO L226 Difference]: Without dead ends: 35 [2018-02-04 04:03:16,538 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 04:03:16,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-02-04 04:03:16,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-02-04 04:03:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-04 04:03:16,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-02-04 04:03:16,541 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 14 [2018-02-04 04:03:16,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:16,542 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-02-04 04:03:16,542 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:16,542 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-02-04 04:03:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:03:16,542 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:16,542 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 04:03:16,543 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:16,543 INFO L82 PathProgramCache]: Analyzing trace with hash -394620288, now seen corresponding path program 1 times [2018-02-04 04:03:16,543 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:16,543 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:16,544 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,544 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:16,544 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:16,556 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:16,599 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 04:03:16,599 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:16,599 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:03:16,599 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:03:16,599 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:03:16,600 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:03:16,600 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2018-02-04 04:03:16,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:16,695 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-02-04 04:03:16,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:03:16,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-04 04:03:16,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:16,696 INFO L225 Difference]: With dead ends: 34 [2018-02-04 04:03:16,696 INFO L226 Difference]: Without dead ends: 34 [2018-02-04 04:03:16,696 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:03:16,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-02-04 04:03:16,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-02-04 04:03:16,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-02-04 04:03:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-02-04 04:03:16,699 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 19 [2018-02-04 04:03:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:16,699 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-02-04 04:03:16,699 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:03:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-02-04 04:03:16,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:03:16,699 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:16,699 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 04:03:16,699 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:16,700 INFO L82 PathProgramCache]: Analyzing trace with hash -394620287, now seen corresponding path program 1 times [2018-02-04 04:03:16,700 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:16,700 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:16,700 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,701 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:16,701 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:16,713 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:16,816 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 04:03:16,816 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:16,817 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:03:16,817 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:03:16,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:03:16,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:03:16,818 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 9 states. [2018-02-04 04:03:16,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:16,898 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-02-04 04:03:16,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:03:16,898 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-02-04 04:03:16,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:16,898 INFO L225 Difference]: With dead ends: 41 [2018-02-04 04:03:16,899 INFO L226 Difference]: Without dead ends: 41 [2018-02-04 04:03:16,899 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:03:16,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-04 04:03:16,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-02-04 04:03:16,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-04 04:03:16,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-04 04:03:16,901 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 19 [2018-02-04 04:03:16,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:16,901 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-04 04:03:16,901 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:03:16,902 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-04 04:03:16,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:03:16,902 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:16,902 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:16,902 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:03:16,902 INFO L82 PathProgramCache]: Analyzing trace with hash 651672940, now seen corresponding path program 1 times [2018-02-04 04:03:16,902 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:16,902 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:16,903 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,903 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:16,903 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:16,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:16,922 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 04:03:16,925 INFO L168 Benchmark]: Toolchain (without parser) took 1365.58 ms. Allocated memory was 403.2 MB in the beginning and 615.5 MB in the end (delta: 212.3 MB). Free memory was 361.4 MB in the beginning and 495.9 MB in the end (delta: -134.6 MB). Peak memory consumption was 77.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:16,926 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:16,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.58 ms. Allocated memory is still 403.2 MB. Free memory was 360.0 MB in the beginning and 350.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:16,927 INFO L168 Benchmark]: Boogie Preprocessor took 23.01 ms. Allocated memory is still 403.2 MB. Free memory was 350.8 MB in the beginning and 348.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:16,927 INFO L168 Benchmark]: RCFGBuilder took 179.27 ms. Allocated memory is still 403.2 MB. Free memory was 348.2 MB in the beginning and 331.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:16,928 INFO L168 Benchmark]: TraceAbstraction took 1010.87 ms. Allocated memory was 403.2 MB in the beginning and 615.5 MB in the end (delta: 212.3 MB). Free memory was 330.1 MB in the beginning and 495.9 MB in the end (delta: -165.8 MB). Peak memory consumption was 46.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:16,929 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 149.58 ms. Allocated memory is still 403.2 MB. Free memory was 360.0 MB in the beginning and 350.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.01 ms. Allocated memory is still 403.2 MB. Free memory was 350.8 MB in the beginning and 348.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 179.27 ms. Allocated memory is still 403.2 MB. Free memory was 348.2 MB in the beginning and 331.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1010.87 ms. Allocated memory was 403.2 MB in the beginning and 615.5 MB in the end (delta: 212.3 MB). Free memory was 330.1 MB in the beginning and 495.9 MB in the end (delta: -165.8 MB). Peak memory consumption was 46.5 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/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-03-16-936.csv Received shutdown request...