java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 11:44:17,170 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 11:44:17,172 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 11:44:17,186 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 11:44:17,186 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 11:44:17,187 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 11:44:17,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 11:44:17,190 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 11:44:17,192 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 11:44:17,193 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 11:44:17,194 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 11:44:17,194 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 11:44:17,195 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 11:44:17,197 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 11:44:17,197 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 11:44:17,200 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 11:44:17,202 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 11:44:17,204 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 11:44:17,205 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 11:44:17,206 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 11:44:17,208 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 11:44:17,213 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 11:44:17,214 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 11:44:17,214 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf [2018-01-24 11:44:17,224 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 11:44:17,224 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 11:44:17,225 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 11:44:17,225 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 11:44:17,225 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 11:44:17,225 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 11:44:17,226 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 11:44:17,226 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 11:44:17,226 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 11:44:17,227 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 11:44:17,227 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 11:44:17,227 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 11:44:17,227 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 11:44:17,227 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 11:44:17,227 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 11:44:17,228 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 11:44:17,228 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 11:44:17,228 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 11:44:17,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 11:44:17,228 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 11:44:17,229 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 11:44:17,229 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 11:44:17,229 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 11:44:17,229 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 11:44:17,230 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 11:44:17,230 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 11:44:17,230 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 11:44:17,230 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 11:44:17,230 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 11:44:17,231 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 11:44:17,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 11:44:17,231 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 11:44:17,232 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 11:44:17,232 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 11:44:17,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 11:44:17,277 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 11:44:17,281 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 11:44:17,283 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 11:44:17,283 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 11:44:17,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-01-24 11:44:17,440 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 11:44:17,445 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 11:44:17,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 11:44:17,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 11:44:17,451 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 11:44:17,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a0d6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17, skipping insertion in model container [2018-01-24 11:44:17,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,469 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 11:44:17,508 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 11:44:17,619 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 11:44:17,633 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 11:44:17,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17 WrapperNode [2018-01-24 11:44:17,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 11:44:17,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 11:44:17,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 11:44:17,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 11:44:17,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... [2018-01-24 11:44:17,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 11:44:17,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 11:44:17,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 11:44:17,670 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 11:44:17,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 11:44:17,715 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 11:44:17,715 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 11:44:17,715 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemset [2018-01-24 11:44:17,715 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 11:44:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure cmemset [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 11:44:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 11:44:17,857 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 11:44:17,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:44:17 BoogieIcfgContainer [2018-01-24 11:44:17,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 11:44:17,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 11:44:17,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 11:44:17,861 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 11:44:17,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:44:17" (1/3) ... [2018-01-24 11:44:17,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153a3611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:44:17, skipping insertion in model container [2018-01-24 11:44:17,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:44:17" (2/3) ... [2018-01-24 11:44:17,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153a3611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:44:17, skipping insertion in model container [2018-01-24 11:44:17,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:44:17" (3/3) ... [2018-01-24 11:44:17,865 INFO L105 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-01-24 11:44:17,873 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 11:44:17,880 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 11:44:17,918 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 11:44:17,919 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 11:44:17,919 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 11:44:17,919 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 11:44:17,919 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 11:44:17,919 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 11:44:17,919 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 11:44:17,920 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 11:44:17,920 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 11:44:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-01-24 11:44:17,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 11:44:17,946 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:44:17,947 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:44:17,947 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-01-24 11:44:17,951 INFO L82 PathProgramCache]: Analyzing trace with hash -930191962, now seen corresponding path program 1 times [2018-01-24 11:44:17,953 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:44:17,953 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:44:17,999 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:17,999 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:44:17,999 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:44:18,054 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:44:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:44:18,230 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:44:18,230 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 11:44:18,231 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 11:44:18,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 11:44:18,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 11:44:18,243 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2018-01-24 11:44:18,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:44:18,488 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2018-01-24 11:44:18,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 11:44:18,489 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-01-24 11:44:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:44:18,500 INFO L225 Difference]: With dead ends: 45 [2018-01-24 11:44:18,500 INFO L226 Difference]: Without dead ends: 30 [2018-01-24 11:44:18,503 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-01-24 11:44:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-24 11:44:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2018-01-24 11:44:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-24 11:44:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-01-24 11:44:18,532 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 15 [2018-01-24 11:44:18,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:44:18,532 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-01-24 11:44:18,532 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 11:44:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-01-24 11:44:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 11:44:18,533 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:44:18,533 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:44:18,533 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-01-24 11:44:18,534 INFO L82 PathProgramCache]: Analyzing trace with hash -930191961, now seen corresponding path program 1 times [2018-01-24 11:44:18,534 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:44:18,534 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:44:18,535 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:18,535 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:44:18,535 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:44:18,557 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:44:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:44:18,762 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:44:18,762 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 11:44:18,764 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 11:44:18,764 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 11:44:18,764 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-24 11:44:18,765 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 9 states. [2018-01-24 11:44:18,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:44:18,895 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-01-24 11:44:18,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 11:44:18,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-01-24 11:44:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:44:18,896 INFO L225 Difference]: With dead ends: 31 [2018-01-24 11:44:18,896 INFO L226 Difference]: Without dead ends: 30 [2018-01-24 11:44:18,897 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-01-24 11:44:18,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-24 11:44:18,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-01-24 11:44:18,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-01-24 11:44:18,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-01-24 11:44:18,902 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2018-01-24 11:44:18,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:44:18,902 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-01-24 11:44:18,902 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 11:44:18,902 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-01-24 11:44:18,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 11:44:18,903 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:44:18,903 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:44:18,903 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-01-24 11:44:18,903 INFO L82 PathProgramCache]: Analyzing trace with hash -890079964, now seen corresponding path program 1 times [2018-01-24 11:44:18,903 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:44:18,903 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:44:18,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:18,904 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:44:18,905 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:44:18,919 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:44:18,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:44:18,982 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:44:18,982 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 11:44:18,982 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 11:44:18,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 11:44:18,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 11:44:18,983 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 4 states. [2018-01-24 11:44:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:44:19,025 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-01-24 11:44:19,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 11:44:19,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-01-24 11:44:19,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:44:19,026 INFO L225 Difference]: With dead ends: 29 [2018-01-24 11:44:19,027 INFO L226 Difference]: Without dead ends: 21 [2018-01-24 11:44:19,027 INFO L525 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 [2018-01-24 11:44:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-01-24 11:44:19,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-01-24 11:44:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-01-24 11:44:19,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-01-24 11:44:19,032 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2018-01-24 11:44:19,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:44:19,033 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-01-24 11:44:19,033 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 11:44:19,033 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-01-24 11:44:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 11:44:19,034 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:44:19,034 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:44:19,034 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-01-24 11:44:19,034 INFO L82 PathProgramCache]: Analyzing trace with hash -715906328, now seen corresponding path program 1 times [2018-01-24 11:44:19,035 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:44:19,035 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:44:19,036 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:19,036 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:44:19,036 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:44:19,059 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:44:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:44:19,272 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 11:44:19,272 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 11:44:19,279 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:44:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:44:19,311 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 11:44:19,350 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 11:44:19,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 11:44:19,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:44:19,358 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-01-24 11:44:19,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:44:19,727 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 11:44:19,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2018-01-24 11:44:19,727 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-01-24 11:44:19,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-01-24 11:44:19,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2018-01-24 11:44:19,728 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 23 states. [2018-01-24 11:44:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:44:20,157 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2018-01-24 11:44:20,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 11:44:20,157 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 20 [2018-01-24 11:44:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:44:20,158 INFO L225 Difference]: With dead ends: 28 [2018-01-24 11:44:20,158 INFO L226 Difference]: Without dead ends: 27 [2018-01-24 11:44:20,159 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2018-01-24 11:44:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-24 11:44:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-01-24 11:44:20,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-01-24 11:44:20,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-01-24 11:44:20,165 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2018-01-24 11:44:20,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:44:20,165 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-01-24 11:44:20,165 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-01-24 11:44:20,165 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-01-24 11:44:20,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 11:44:20,166 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:44:20,166 INFO L322 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:44:20,166 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-01-24 11:44:20,166 INFO L82 PathProgramCache]: Analyzing trace with hash -293108153, now seen corresponding path program 2 times [2018-01-24 11:44:20,167 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:44:20,167 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:44:20,168 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:20,168 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:44:20,168 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:44:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:44:20,192 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:44:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:44:20,453 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 11:44:20,453 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 11:44:20,458 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 11:44:20,469 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 11:44:20,473 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 11:44:20,476 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 11:44:20,478 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 11:44:20,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 11:44:20,482 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 11:44:20,484 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:44:20,484 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-01-24 11:44:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:44:20,704 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 11:44:20,704 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2018-01-24 11:44:20,704 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-01-24 11:44:20,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-01-24 11:44:20,705 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2018-01-24 11:44:20,705 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 23 states. [2018-01-24 11:44:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:44:21,490 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-01-24 11:44:21,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-01-24 11:44:21,490 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2018-01-24 11:44:21,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:44:21,490 INFO L225 Difference]: With dead ends: 32 [2018-01-24 11:44:21,490 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 11:44:21,491 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=1317, Unknown=0, NotChecked=0, Total=1482 [2018-01-24 11:44:21,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 11:44:21,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 11:44:21,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 11:44:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 11:44:21,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-01-24 11:44:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:44:21,492 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 11:44:21,492 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-01-24 11:44:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 11:44:21,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 11:44:21,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 11:44:21,703 WARN L146 SmtUtils]: Spent 139ms on a formula simplification. DAG size of input: 77 DAG size of output 54 [2018-01-24 11:44:21,740 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 564) no Hoare annotation was computed. [2018-01-24 11:44:21,740 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 564) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 11:44:21,740 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 564) no Hoare annotation was computed. [2018-01-24 11:44:21,740 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 564) the Hoare annotation is: true [2018-01-24 11:44:21,740 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 564) no Hoare annotation was computed. [2018-01-24 11:44:21,741 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 564) the Hoare annotation is: true [2018-01-24 11:44:21,741 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 564) no Hoare annotation was computed. [2018-01-24 11:44:21,741 INFO L401 ceAbstractionStarter]: For program point L561'(line 561) no Hoare annotation was computed. [2018-01-24 11:44:21,741 INFO L401 ceAbstractionStarter]: For program point L562'(line 562) no Hoare annotation was computed. [2018-01-24 11:44:21,741 INFO L397 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: (and (<= 1 main_~n~4) (= 0 |main_#t~malloc6.offset|) (= main_~n~4 (select |#length| main_~nondetArea~4.base)) (= 1 (select |#valid| main_~nondetArea~4.base)) (= 0 main_~nondetArea~4.offset) (= main_~n~4 (select |#length| |main_#t~malloc6.base|)) (= (store |#valid| |main_#t~malloc6.base| (select (store |#valid| |main_#t~malloc6.base| 0) |main_#t~malloc6.base|)) |old(#valid)|) (= 1 (select |#valid| |main_#t~malloc6.base|))) [2018-01-24 11:44:21,741 INFO L401 ceAbstractionStarter]: For program point L561(line 561) no Hoare annotation was computed. [2018-01-24 11:44:21,741 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 551 564) no Hoare annotation was computed. [2018-01-24 11:44:21,741 INFO L401 ceAbstractionStarter]: For program point L555(lines 555 557) no Hoare annotation was computed. [2018-01-24 11:44:21,742 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 551 564) no Hoare annotation was computed. [2018-01-24 11:44:21,742 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 551 564) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 11:44:21,742 INFO L401 ceAbstractionStarter]: For program point L561''(line 561) no Hoare annotation was computed. [2018-01-24 11:44:21,742 INFO L401 ceAbstractionStarter]: For program point L558'(lines 558 560) no Hoare annotation was computed. [2018-01-24 11:44:21,742 INFO L401 ceAbstractionStarter]: For program point L555''(lines 555 557) no Hoare annotation was computed. [2018-01-24 11:44:21,742 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 551 564) no Hoare annotation was computed. [2018-01-24 11:44:21,742 INFO L401 ceAbstractionStarter]: For program point L546(line 546) no Hoare annotation was computed. [2018-01-24 11:44:21,742 INFO L401 ceAbstractionStarter]: For program point L545(lines 545 547) no Hoare annotation was computed. [2018-01-24 11:44:21,743 INFO L401 ceAbstractionStarter]: For program point L543(lines 543 548) no Hoare annotation was computed. [2018-01-24 11:44:21,743 INFO L404 ceAbstractionStarter]: At program point cmemsetENTRY(lines 540 550) the Hoare annotation is: true [2018-01-24 11:44:21,743 INFO L401 ceAbstractionStarter]: For program point L546'(line 546) no Hoare annotation was computed. [2018-01-24 11:44:21,743 INFO L401 ceAbstractionStarter]: For program point cmemsetFINAL(lines 540 550) no Hoare annotation was computed. [2018-01-24 11:44:21,743 INFO L397 ceAbstractionStarter]: At program point L545'''(lines 545 547) the Hoare annotation is: (let ((.cse8 (select |#length| cmemset_~dst.base))) (let ((.cse3 (<= 1 .cse8)) (.cse0 (= 1 (select |#valid| cmemset_~dst.base))) (.cse4 (= 0 cmemset_~dst.offset)) (.cse1 (select |#length| cmemset_~d~3.base)) (.cse5 (= 1 (select |#valid| cmemset_~d~3.base))) (.cse7 (<= 1 cmemset_~n))) (or (let ((.cse2 (+ cmemset_~n 1))) (and .cse0 (<= .cse1 .cse2) .cse3 (not (= 0 (mod (+ .cse1 4294967295) 4294967296))) .cse4 (<= 1 .cse1) (<= .cse2 .cse1) (= 1 cmemset_~d~3.offset) .cse5)) (let ((.cse6 (+ cmemset_~d~3.offset cmemset_~n))) (and .cse0 .cse3 (<= .cse6 .cse1) (<= .cse1 .cse6) .cse4 (<= 2 cmemset_~d~3.offset) .cse5 .cse7)) (< |cmemset_#in~n| 1) (and .cse0 .cse4 (= .cse1 cmemset_~n) (= 0 cmemset_~d~3.offset) (= cmemset_~n .cse8) .cse5 .cse7) (not (= (select |#length| |cmemset_#in~dst.base|) |cmemset_#in~n|)) (not (= (select |#valid| |cmemset_#in~dst.base|) 1)) (not (= 0 |cmemset_#in~dst.offset|))))) [2018-01-24 11:44:21,743 INFO L401 ceAbstractionStarter]: For program point cmemsetEXIT(lines 540 550) no Hoare annotation was computed. [2018-01-24 11:44:21,743 INFO L401 ceAbstractionStarter]: For program point cmemsetErr0RequiresViolation(lines 1 564) no Hoare annotation was computed. [2018-01-24 11:44:21,744 INFO L401 ceAbstractionStarter]: For program point L543'(lines 543 548) no Hoare annotation was computed. [2018-01-24 11:44:21,744 INFO L401 ceAbstractionStarter]: For program point L545'(lines 545 547) no Hoare annotation was computed. [2018-01-24 11:44:21,744 INFO L401 ceAbstractionStarter]: For program point cmemsetErr1RequiresViolation(lines 1 564) no Hoare annotation was computed. [2018-01-24 11:44:21,751 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,752 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,753 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,753 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,753 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,754 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,754 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,754 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,754 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,755 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,755 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,760 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,760 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,760 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,761 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,761 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,761 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,762 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,762 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,762 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,762 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,763 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 11:44:21 BoogieIcfgContainer [2018-01-24 11:44:21,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 11:44:21,767 INFO L168 Benchmark]: Toolchain (without parser) took 4325.89 ms. Allocated memory was 309.3 MB in the beginning and 521.7 MB in the end (delta: 212.3 MB). Free memory was 269.2 MB in the beginning and 428.8 MB in the end (delta: -159.5 MB). Peak memory consumption was 52.8 MB. Max. memory is 5.3 GB. [2018-01-24 11:44:21,768 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 309.3 MB. Free memory is still 275.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 11:44:21,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.13 ms. Allocated memory is still 309.3 MB. Free memory was 268.2 MB in the beginning and 258.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 11:44:21,769 INFO L168 Benchmark]: Boogie Preprocessor took 29.23 ms. Allocated memory is still 309.3 MB. Free memory was 258.2 MB in the beginning and 257.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:44:21,769 INFO L168 Benchmark]: RCFGBuilder took 188.80 ms. Allocated memory is still 309.3 MB. Free memory was 256.2 MB in the beginning and 242.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:44:21,769 INFO L168 Benchmark]: TraceAbstraction took 3906.64 ms. Allocated memory was 309.3 MB in the beginning and 521.7 MB in the end (delta: 212.3 MB). Free memory was 241.2 MB in the beginning and 428.8 MB in the end (delta: -187.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 5.3 GB. [2018-01-24 11:44:21,771 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 309.3 MB. Free memory is still 275.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 194.13 ms. Allocated memory is still 309.3 MB. Free memory was 268.2 MB in the beginning and 258.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.23 ms. Allocated memory is still 309.3 MB. Free memory was 258.2 MB in the beginning and 257.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 188.80 ms. Allocated memory is still 309.3 MB. Free memory was 256.2 MB in the beginning and 242.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 3906.64 ms. Allocated memory was 309.3 MB in the beginning and 521.7 MB in the end (delta: 212.3 MB). Free memory was 241.2 MB in the beginning and 428.8 MB in the end (delta: -187.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 551]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 545]: Loop Invariant [2018-01-24 11:44:21,777 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,777 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,782 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,783 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,783 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,783 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,783 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,783 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,784 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,784 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,784 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,784 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 11:44:21,785 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((((((((1 == \valid[dst] && unknown-#length-unknown[d] <= n + 1) && 1 <= unknown-#length-unknown[dst]) && !(0 == (unknown-#length-unknown[d] + 4294967295) % 4294967296)) && 0 == dst) && 1 <= unknown-#length-unknown[d]) && n + 1 <= unknown-#length-unknown[d]) && 1 == d) && 1 == \valid[d]) || (((((((1 == \valid[dst] && 1 <= unknown-#length-unknown[dst]) && d + n <= unknown-#length-unknown[d]) && unknown-#length-unknown[d] <= d + n) && 0 == dst) && 2 <= d) && 1 == \valid[d]) && 1 <= n)) || \old(n) < 1) || ((((((1 == \valid[dst] && 0 == dst) && unknown-#length-unknown[d] == n) && 0 == d) && n == unknown-#length-unknown[dst]) && 1 == \valid[d]) && 1 <= n)) || !(unknown-#length-unknown[dst] == \old(n))) || !(\valid[dst] == 1)) || !(0 == dst) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 3 error locations. SAFE Result, 3.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 97 SDtfs, 151 SDslu, 548 SDs, 0 SdLazy, 551 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 191 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 318 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 133 ConstructedInterpolants, 2 QuantifiedInterpolants, 23057 SizeOfPredicates, 20 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 0/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_11-44-21-790.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_11-44-21-790.csv Received shutdown request...