java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:39:13,041 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:39:13,045 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:39:13,061 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:39:13,061 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:39:13,063 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:39:13,065 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:39:13,067 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:39:13,070 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:39:13,072 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:39:13,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:39:13,074 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:39:13,075 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:39:13,078 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:39:13,085 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:39:13,086 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:39:13,090 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:39:13,092 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:39:13,095 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:39:13,098 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:39:13,099 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:39:13,100 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:39:13,106 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 15:39:13,106 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 15:39:13,106 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 15:39:13,107 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 15:39:13,108 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 15:39:13,108 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 15:39:13,109 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 15:39:13,110 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 15:39:13,110 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 15:39:13,111 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 15:39:13,111 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 15:39:13,112 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 15:39:13,112 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 15:39:13,113 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 15:39:13,113 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:39:13,141 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:39:13,141 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:39:13,142 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:39:13,142 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:39:13,143 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:39:13,143 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:39:13,143 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:39:13,144 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:39:13,144 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:39:13,144 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:39:13,144 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:39:13,144 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:39:13,144 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:39:13,145 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:39:13,145 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:39:13,145 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:39:13,145 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:39:13,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:39:13,146 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:39:13,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:39:13,146 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:39:13,146 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:39:13,146 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:39:13,147 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:39:13,147 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:39:13,147 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:39:13,147 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:39:13,147 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:39:13,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:39:13,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:39:13,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:39:13,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:39:13,216 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:39:13,217 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-10-22 15:39:13,274 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7e6bfcc91/3ba16925845943e397329fb147be39bc/FLAG4986c27eb [2018-10-22 15:39:13,765 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:39:13,766 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-10-22 15:39:13,773 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7e6bfcc91/3ba16925845943e397329fb147be39bc/FLAG4986c27eb [2018-10-22 15:39:13,789 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7e6bfcc91/3ba16925845943e397329fb147be39bc [2018-10-22 15:39:13,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:39:13,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:39:13,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:39:13,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:39:13,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:39:13,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:39:13" (1/1) ... [2018-10-22 15:39:13,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b467fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:13, skipping insertion in model container [2018-10-22 15:39:13,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:39:13" (1/1) ... [2018-10-22 15:39:13,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:39:13,851 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:39:14,031 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:39:14,035 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:39:14,061 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:39:14,083 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:39:14,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14 WrapperNode [2018-10-22 15:39:14,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:39:14,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:39:14,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:39:14,085 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:39:14,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:39:14,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:39:14,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:39:14,132 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:39:14,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... [2018-10-22 15:39:14,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:39:14,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:39:14,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:39:14,164 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:39:14,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:39:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-22 15:39:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-22 15:39:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:39:14,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:39:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-22 15:39:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-22 15:39:14,899 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:39:14,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:39:14 BoogieIcfgContainer [2018-10-22 15:39:14,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:39:14,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:39:14,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:39:14,904 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:39:14,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:39:13" (1/3) ... [2018-10-22 15:39:14,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3374ce6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:39:14, skipping insertion in model container [2018-10-22 15:39:14,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:39:14" (2/3) ... [2018-10-22 15:39:14,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3374ce6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:39:14, skipping insertion in model container [2018-10-22 15:39:14,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:39:14" (3/3) ... [2018-10-22 15:39:14,908 INFO L112 eAbstractionObserver]: Analyzing ICFG string_true-unreach-call_true-termination.i [2018-10-22 15:39:14,919 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:39:14,933 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:39:14,954 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:39:14,985 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:39:14,986 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:39:14,986 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:39:14,986 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:39:14,986 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:39:14,986 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:39:14,987 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:39:14,987 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:39:14,987 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:39:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-10-22 15:39:15,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-22 15:39:15,010 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:39:15,011 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:39:15,014 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:39:15,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:39:15,020 INFO L82 PathProgramCache]: Analyzing trace with hash 777437931, now seen corresponding path program 1 times [2018-10-22 15:39:15,021 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:39:15,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:39:15,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:15,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:39:15,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:39:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:39:15,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:39:15,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:39:15,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:39:15,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:39:15,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:39:15,162 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-10-22 15:39:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:39:15,186 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2018-10-22 15:39:15,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:39:15,187 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-10-22 15:39:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:39:15,200 INFO L225 Difference]: With dead ends: 102 [2018-10-22 15:39:15,200 INFO L226 Difference]: Without dead ends: 36 [2018-10-22 15:39:15,204 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:39:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-22 15:39:15,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-10-22 15:39:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-22 15:39:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-10-22 15:39:15,246 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 19 [2018-10-22 15:39:15,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:39:15,247 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-10-22 15:39:15,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:39:15,247 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-10-22 15:39:15,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-22 15:39:15,249 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:39:15,250 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:39:15,250 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:39:15,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:39:15,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1306036578, now seen corresponding path program 1 times [2018-10-22 15:39:15,251 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:39:15,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:39:15,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:15,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:39:15,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:39:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:39:15,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:39:15,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:39:15,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:39:15,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:39:15,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:39:15,394 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 3 states. [2018-10-22 15:39:15,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:39:15,600 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2018-10-22 15:39:15,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:39:15,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-10-22 15:39:15,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:39:15,605 INFO L225 Difference]: With dead ends: 81 [2018-10-22 15:39:15,605 INFO L226 Difference]: Without dead ends: 55 [2018-10-22 15:39:15,606 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:39:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-22 15:39:15,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 40. [2018-10-22 15:39:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-22 15:39:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2018-10-22 15:39:15,614 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 26 [2018-10-22 15:39:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:39:15,615 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2018-10-22 15:39:15,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:39:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-10-22 15:39:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-22 15:39:15,618 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:39:15,618 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:39:15,619 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:39:15,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:39:15,620 INFO L82 PathProgramCache]: Analyzing trace with hash -373199200, now seen corresponding path program 1 times [2018-10-22 15:39:15,620 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:39:15,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:39:15,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:15,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:39:15,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:39:15,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-22 15:39:15,764 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:39:15,764 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:39:15,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:39:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:39:15,837 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:39:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-22 15:39:16,051 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:39:16,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-10-22 15:39:16,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:39:16,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:39:16,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:39:16,053 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 5 states. [2018-10-22 15:39:16,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:39:16,271 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2018-10-22 15:39:16,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:39:16,272 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-10-22 15:39:16,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:39:16,273 INFO L225 Difference]: With dead ends: 102 [2018-10-22 15:39:16,273 INFO L226 Difference]: Without dead ends: 74 [2018-10-22 15:39:16,274 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:39:16,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-10-22 15:39:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 50. [2018-10-22 15:39:16,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-22 15:39:16,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-10-22 15:39:16,282 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 36 [2018-10-22 15:39:16,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:39:16,282 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-10-22 15:39:16,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:39:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-10-22 15:39:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-22 15:39:16,284 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:39:16,284 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:39:16,285 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:39:16,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:39:16,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1086815326, now seen corresponding path program 2 times [2018-10-22 15:39:16,285 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:39:16,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:39:16,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:16,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:39:16,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:39:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:39:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-22 15:39:16,512 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:39:16,512 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:39:16,529 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 15:39:16,562 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-22 15:39:16,563 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:39:16,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:39:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-22 15:39:16,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:39:16,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2018-10-22 15:39:16,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 15:39:16,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 15:39:16,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:39:16,670 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 8 states. [2018-10-22 15:39:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:39:17,052 INFO L93 Difference]: Finished difference Result 126 states and 146 transitions. [2018-10-22 15:39:17,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-22 15:39:17,053 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-10-22 15:39:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:39:17,053 INFO L225 Difference]: With dead ends: 126 [2018-10-22 15:39:17,053 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:39:17,055 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-10-22 15:39:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:39:17,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:39:17,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:39:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:39:17,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-10-22 15:39:17,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:39:17,056 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:39:17,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 15:39:17,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:39:17,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:39:17,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:39:17,092 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 20) no Hoare annotation was computed. [2018-10-22 15:39:17,093 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 20) no Hoare annotation was computed. [2018-10-22 15:39:17,093 INFO L428 ceAbstractionStarter]: At program point L19-4(lines 19 20) the Hoare annotation is: true [2018-10-22 15:39:17,093 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 20) no Hoare annotation was computed. [2018-10-22 15:39:17,093 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:39:17,093 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:39:17,093 INFO L425 ceAbstractionStarter]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2018-10-22 15:39:17,093 INFO L425 ceAbstractionStarter]: For program point L28-2(lines 28 29) no Hoare annotation was computed. [2018-10-22 15:39:17,094 INFO L428 ceAbstractionStarter]: At program point L28-4(lines 28 29) the Hoare annotation is: true [2018-10-22 15:39:17,094 INFO L425 ceAbstractionStarter]: For program point L28-5(lines 28 29) no Hoare annotation was computed. [2018-10-22 15:39:17,094 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-22 15:39:17,094 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-22 15:39:17,094 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-22 15:39:17,094 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-22 15:39:17,095 INFO L428 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2018-10-22 15:39:17,095 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 51) no Hoare annotation was computed. [2018-10-22 15:39:17,095 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-22 15:39:17,095 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 51) no Hoare annotation was computed. [2018-10-22 15:39:17,095 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 24) no Hoare annotation was computed. [2018-10-22 15:39:17,095 INFO L425 ceAbstractionStarter]: For program point L23-3(lines 23 24) no Hoare annotation was computed. [2018-10-22 15:39:17,096 INFO L428 ceAbstractionStarter]: At program point L23-4(lines 23 24) the Hoare annotation is: true [2018-10-22 15:39:17,096 INFO L425 ceAbstractionStarter]: For program point L23-5(lines 23 24) no Hoare annotation was computed. [2018-10-22 15:39:17,096 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:39:17,096 INFO L425 ceAbstractionStarter]: For program point L32-1(lines 32 33) no Hoare annotation was computed. [2018-10-22 15:39:17,096 INFO L425 ceAbstractionStarter]: For program point L32-2(lines 32 33) no Hoare annotation was computed. [2018-10-22 15:39:17,096 INFO L428 ceAbstractionStarter]: At program point L32-4(lines 32 33) the Hoare annotation is: true [2018-10-22 15:39:17,096 INFO L425 ceAbstractionStarter]: For program point L32-5(lines 15 58) no Hoare annotation was computed. [2018-10-22 15:39:17,097 INFO L428 ceAbstractionStarter]: At program point L57(lines 14 58) the Hoare annotation is: true [2018-10-22 15:39:17,097 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-22 15:39:17,097 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-10-22 15:39:17,097 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,097 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,097 INFO L425 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,097 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L16-4(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L16-5(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L16-6(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L16-7(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L16-8(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L16-9(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,098 INFO L425 ceAbstractionStarter]: For program point L41-2(lines 41 50) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point L16-10(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point L16-11(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L428 ceAbstractionStarter]: At program point L41-4(lines 39 51) the Hoare annotation is: true [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point L16-12(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point L16-13(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point L16-14(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point L16-15(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:39:17,099 INFO L425 ceAbstractionStarter]: For program point L16-16(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,100 INFO L425 ceAbstractionStarter]: For program point L16-17(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,100 INFO L425 ceAbstractionStarter]: For program point L16-18(line 16) no Hoare annotation was computed. [2018-10-22 15:39:17,100 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-22 15:39:17,100 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-22 15:39:17,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:39:17 BoogieIcfgContainer [2018-10-22 15:39:17,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:39:17,107 INFO L168 Benchmark]: Toolchain (without parser) took 3306.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -640.6 MB). Peak memory consumption was 97.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:39:17,110 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:39:17,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:39:17,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:39:17,112 INFO L168 Benchmark]: Boogie Preprocessor took 30.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:39:17,112 INFO L168 Benchmark]: RCFGBuilder took 736.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2018-10-22 15:39:17,114 INFO L168 Benchmark]: TraceAbstraction took 2206.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.2 MB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-22 15:39:17,118 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 736.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2206.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.2 MB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 148 SDtfs, 91 SDslu, 217 SDs, 0 SdLazy, 199 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 24 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 209 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 10869 SizeOfPredicates, 6 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 31/44 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...