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/eca-rers2012/Problem19_label33_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:06:03,065 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:06:03,067 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:06:03,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:06:03,084 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:06:03,085 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:06:03,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:06:03,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:06:03,093 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:06:03,094 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:06:03,095 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:06:03,095 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:06:03,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:06:03,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:06:03,098 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:06:03,099 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:06:03,100 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:06:03,102 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:06:03,104 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:06:03,105 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:06:03,107 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:06:03,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:06:03,115 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 17:06:03,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 17:06:03,116 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 17:06:03,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 17:06:03,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 17:06:03,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 17:06:03,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 17:06:03,124 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 17:06:03,124 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 17:06:03,126 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 17:06:03,126 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 17:06:03,126 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 17:06:03,128 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 17:06:03,128 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 17:06:03,129 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 [2018-10-24 17:06:03,158 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:06:03,158 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:06:03,159 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:06:03,159 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:06:03,163 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:06:03,163 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:06:03,163 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:06:03,163 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:06:03,164 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:06:03,164 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:06:03,164 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:06:03,164 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:06:03,164 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:06:03,165 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:06:03,166 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:06:03,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:06:03,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:06:03,166 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:06:03,167 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:06:03,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:06:03,167 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:06:03,167 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:06:03,168 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:06:03,169 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:06:03,169 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:06:03,169 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:06:03,170 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:06:03,170 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:06:03,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:06:03,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:06:03,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:06:03,255 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:06:03,255 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:06:03,256 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label33_true-unreach-call.c [2018-10-24 17:06:03,323 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3dc66e5ac/44ca5ce472ab45f994fa94d5e444c5b3/FLAGd5bd98242 [2018-10-24 17:06:04,252 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:06:04,255 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label33_true-unreach-call.c [2018-10-24 17:06:04,302 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3dc66e5ac/44ca5ce472ab45f994fa94d5e444c5b3/FLAGd5bd98242 [2018-10-24 17:06:04,319 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3dc66e5ac/44ca5ce472ab45f994fa94d5e444c5b3 [2018-10-24 17:06:04,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:06:04,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:06:04,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:06:04,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:06:04,342 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:06:04,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:06:04" (1/1) ... [2018-10-24 17:06:04,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b5ccc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:04, skipping insertion in model container [2018-10-24 17:06:04,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:06:04" (1/1) ... [2018-10-24 17:06:04,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:06:04,619 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:06:06,700 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:06:06,706 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:06:08,261 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:06:08,318 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:06:08,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08 WrapperNode [2018-10-24 17:06:08,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:06:08,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:06:08,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:06:08,320 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:06:08,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:08,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:09,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:06:09,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:06:09,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:06:09,385 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:06:09,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:09,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:09,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:09,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:09,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:09,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:09,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (1/1) ... [2018-10-24 17:06:10,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:06:10,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:06:10,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:06:10,174 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:06:10,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (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 [2018-10-24 17:06:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:06:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:06:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:06:27,574 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:06:27,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:27 BoogieIcfgContainer [2018-10-24 17:06:27,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:06:27,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:06:27,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:06:27,583 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:06:27,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:06:04" (1/3) ... [2018-10-24 17:06:27,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a78495a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:27, skipping insertion in model container [2018-10-24 17:06:27,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:08" (2/3) ... [2018-10-24 17:06:27,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a78495a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:27, skipping insertion in model container [2018-10-24 17:06:27,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:27" (3/3) ... [2018-10-24 17:06:27,590 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label33_true-unreach-call.c [2018-10-24 17:06:27,600 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:06:27,615 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:06:27,634 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:06:27,702 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:06:27,702 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:06:27,703 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:06:27,703 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:06:27,703 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:06:27,703 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:06:27,703 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:06:27,703 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:06:27,703 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:06:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:06:27,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-24 17:06:27,776 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:06:27,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:06:27,781 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:06:27,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:06:27,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1057203130, now seen corresponding path program 1 times [2018-10-24 17:06:27,789 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:06:27,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:06:27,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:27,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:06:27,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:06:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:06:28,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:06:28,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:06:28,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:06:28,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:06:28,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:06:28,259 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:06:53,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:06:53,916 INFO L93 Difference]: Finished difference Result 6431 states and 12286 transitions. [2018-10-24 17:06:53,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:06:53,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-10-24 17:06:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:06:53,979 INFO L225 Difference]: With dead ends: 6431 [2018-10-24 17:06:53,979 INFO L226 Difference]: Without dead ends: 4675 [2018-10-24 17:06:53,991 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:06:54,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4675 states. [2018-10-24 17:06:54,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4675 to 4581. [2018-10-24 17:06:54,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4581 states. [2018-10-24 17:06:54,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 7890 transitions. [2018-10-24 17:06:54,218 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 7890 transitions. Word has length 42 [2018-10-24 17:06:54,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:06:54,219 INFO L481 AbstractCegarLoop]: Abstraction has 4581 states and 7890 transitions. [2018-10-24 17:06:54,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:06:54,219 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 7890 transitions. [2018-10-24 17:06:54,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 17:06:54,224 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:06:54,225 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:06:54,225 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:06:54,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:06:54,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1276789285, now seen corresponding path program 1 times [2018-10-24 17:06:54,226 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:06:54,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:06:54,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:54,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:06:54,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:06:55,203 WARN L179 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 17:06:55,762 WARN L179 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-10-24 17:06:55,888 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:06:55,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:06:55,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:06:55,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:06:55,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:06:55,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:06:55,892 INFO L87 Difference]: Start difference. First operand 4581 states and 7890 transitions. Second operand 6 states. [2018-10-24 17:07:30,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:07:30,073 INFO L93 Difference]: Finished difference Result 17384 states and 28714 transitions. [2018-10-24 17:07:30,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:07:30,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-10-24 17:07:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:07:30,142 INFO L225 Difference]: With dead ends: 17384 [2018-10-24 17:07:30,142 INFO L226 Difference]: Without dead ends: 12805 [2018-10-24 17:07:30,151 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 17:07:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12805 states. [2018-10-24 17:07:30,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12805 to 12798. [2018-10-24 17:07:30,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12798 states. [2018-10-24 17:07:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12798 states to 12798 states and 18712 transitions. [2018-10-24 17:07:30,396 INFO L78 Accepts]: Start accepts. Automaton has 12798 states and 18712 transitions. Word has length 114 [2018-10-24 17:07:30,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:07:30,396 INFO L481 AbstractCegarLoop]: Abstraction has 12798 states and 18712 transitions. [2018-10-24 17:07:30,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:07:30,397 INFO L276 IsEmpty]: Start isEmpty. Operand 12798 states and 18712 transitions. [2018-10-24 17:07:30,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-10-24 17:07:30,406 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:07:30,407 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2018-10-24 17:07:30,407 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:07:30,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:07:30,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1955426926, now seen corresponding path program 1 times [2018-10-24 17:07:30,408 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:07:30,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:07:30,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:30,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:07:30,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:07:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-10-24 17:07:31,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:07:31,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:07:31,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:07:31,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:07:31,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:07:31,345 INFO L87 Difference]: Start difference. First operand 12798 states and 18712 transitions. Second operand 7 states. [2018-10-24 17:08:08,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:08,678 INFO L93 Difference]: Finished difference Result 36534 states and 56207 transitions. [2018-10-24 17:08:08,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:08:08,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2018-10-24 17:08:08,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:08,746 INFO L225 Difference]: With dead ends: 36534 [2018-10-24 17:08:08,746 INFO L226 Difference]: Without dead ends: 23738 [2018-10-24 17:08:08,762 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 17:08:08,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23738 states. [2018-10-24 17:08:09,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23738 to 19636. [2018-10-24 17:08:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19636 states. [2018-10-24 17:08:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19636 states to 19636 states and 26065 transitions. [2018-10-24 17:08:09,098 INFO L78 Accepts]: Start accepts. Automaton has 19636 states and 26065 transitions. Word has length 338 [2018-10-24 17:08:09,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:09,099 INFO L481 AbstractCegarLoop]: Abstraction has 19636 states and 26065 transitions. [2018-10-24 17:08:09,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:08:09,099 INFO L276 IsEmpty]: Start isEmpty. Operand 19636 states and 26065 transitions. [2018-10-24 17:08:09,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2018-10-24 17:08:09,113 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:09,114 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1] [2018-10-24 17:08:09,114 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:09,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:09,118 INFO L82 PathProgramCache]: Analyzing trace with hash 315069064, now seen corresponding path program 1 times [2018-10-24 17:08:09,118 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:09,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:09,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:09,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:09,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 79 proven. 4 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-10-24 17:08:09,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:08:09,731 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 [2018-10-24 17:08:09,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:09,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:08:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:08:10,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:08:10,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 17:08:10,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:08:10,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:08:10,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:08:10,121 INFO L87 Difference]: Start difference. First operand 19636 states and 26065 transitions. Second operand 5 states. [2018-10-24 17:08:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:54,909 INFO L93 Difference]: Finished difference Result 103731 states and 147639 transitions. [2018-10-24 17:08:54,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:08:54,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 366 [2018-10-24 17:08:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:55,102 INFO L225 Difference]: With dead ends: 103731 [2018-10-24 17:08:55,102 INFO L226 Difference]: Without dead ends: 85463 [2018-10-24 17:08:55,134 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:08:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85463 states. [2018-10-24 17:08:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85463 to 55148. [2018-10-24 17:08:55,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55148 states. [2018-10-24 17:08:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55148 states to 55148 states and 69979 transitions. [2018-10-24 17:08:56,063 INFO L78 Accepts]: Start accepts. Automaton has 55148 states and 69979 transitions. Word has length 366 [2018-10-24 17:08:56,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:56,064 INFO L481 AbstractCegarLoop]: Abstraction has 55148 states and 69979 transitions. [2018-10-24 17:08:56,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:08:56,064 INFO L276 IsEmpty]: Start isEmpty. Operand 55148 states and 69979 transitions. [2018-10-24 17:08:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-10-24 17:08:56,079 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:56,080 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:08:56,080 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:56,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:56,081 INFO L82 PathProgramCache]: Analyzing trace with hash 654754231, now seen corresponding path program 1 times [2018-10-24 17:08:56,081 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:56,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:56,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:56,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:56,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 79 proven. 65 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-10-24 17:08:56,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:08:56,905 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 [2018-10-24 17:08:56,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:57,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:08:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-24 17:08:57,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:08:57,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 17:08:57,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:08:57,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:08:57,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:08:57,328 INFO L87 Difference]: Start difference. First operand 55148 states and 69979 transitions. Second operand 5 states. [2018-10-24 17:09:27,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:09:27,569 INFO L93 Difference]: Finished difference Result 191231 states and 248206 transitions. [2018-10-24 17:09:27,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:09:27,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 481 [2018-10-24 17:09:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:09:27,725 INFO L225 Difference]: With dead ends: 191231 [2018-10-24 17:09:27,725 INFO L226 Difference]: Without dead ends: 134655 [2018-10-24 17:09:27,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:09:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134655 states. [2018-10-24 17:09:29,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134655 to 131903. [2018-10-24 17:09:29,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131903 states. [2018-10-24 17:09:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131903 states to 131903 states and 148357 transitions. [2018-10-24 17:09:29,604 INFO L78 Accepts]: Start accepts. Automaton has 131903 states and 148357 transitions. Word has length 481 [2018-10-24 17:09:29,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:09:29,605 INFO L481 AbstractCegarLoop]: Abstraction has 131903 states and 148357 transitions. [2018-10-24 17:09:29,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:09:29,605 INFO L276 IsEmpty]: Start isEmpty. Operand 131903 states and 148357 transitions. [2018-10-24 17:09:29,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2018-10-24 17:09:29,652 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:29,652 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:09:29,653 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:29,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:29,653 INFO L82 PathProgramCache]: Analyzing trace with hash 983281641, now seen corresponding path program 1 times [2018-10-24 17:09:29,653 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:29,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:29,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:29,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:29,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 532 proven. 72 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2018-10-24 17:09:31,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:09:31,087 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:09:31,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:31,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:09:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 532 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-10-24 17:09:33,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:09:33,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 17:09:33,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:09:33,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:09:33,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:09:33,029 INFO L87 Difference]: Start difference. First operand 131903 states and 148357 transitions. Second operand 5 states. [2018-10-24 17:09:49,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:09:49,440 INFO L93 Difference]: Finished difference Result 319814 states and 363492 transitions. [2018-10-24 17:09:49,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:09:49,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 902 [2018-10-24 17:09:49,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:09:49,697 INFO L225 Difference]: With dead ends: 319814 [2018-10-24 17:09:49,697 INFO L226 Difference]: Without dead ends: 189279 [2018-10-24 17:09:49,775 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 901 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:09:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189279 states. [2018-10-24 17:09:51,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189279 to 187905. [2018-10-24 17:09:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187905 states. [2018-10-24 17:09:51,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187905 states to 187905 states and 208602 transitions. [2018-10-24 17:09:51,421 INFO L78 Accepts]: Start accepts. Automaton has 187905 states and 208602 transitions. Word has length 902 [2018-10-24 17:09:51,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:09:51,422 INFO L481 AbstractCegarLoop]: Abstraction has 187905 states and 208602 transitions. [2018-10-24 17:09:51,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:09:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 187905 states and 208602 transitions. [2018-10-24 17:09:51,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2018-10-24 17:09:51,467 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:51,468 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1] [2018-10-24 17:09:51,468 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:51,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:51,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1456616466, now seen corresponding path program 1 times [2018-10-24 17:09:51,469 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:51,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:51,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:51,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:51,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:52,757 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 12 [2018-10-24 17:09:52,979 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2018-10-24 17:09:56,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1119 backedges. 370 proven. 285 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2018-10-24 17:09:56,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:09:56,589 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:09:56,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:56,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:09:57,217 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 17:09:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1119 backedges. 998 proven. 37 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 17:09:59,293 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 17:09:59,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2018-10-24 17:09:59,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 17:09:59,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 17:09:59,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-24 17:09:59,298 INFO L87 Difference]: Start difference. First operand 187905 states and 208602 transitions. Second operand 9 states. Received shutdown request... [2018-10-24 17:10:00,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:10:00,877 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:10:00,884 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:10:00,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:10:00 BoogieIcfgContainer [2018-10-24 17:10:00,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:10:00,886 INFO L168 Benchmark]: Toolchain (without parser) took 236550.09 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 313.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 17:10:00,887 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. [2018-10-24 17:10:00,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3980.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 992.4 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:00,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 1065.21 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 851.4 MB). Free memory was 992.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:00,889 INFO L168 Benchmark]: Boogie Preprocessor took 788.00 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 113.3 MB). Peak memory consumption was 113.3 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:00,890 INFO L168 Benchmark]: RCFGBuilder took 17402.29 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 292.6 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -385.5 MB). Peak memory consumption was 848.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:00,891 INFO L168 Benchmark]: TraceAbstraction took 213305.55 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 963.6 MB). Free memory was 2.4 GB in the beginning and 1.1 GB in the end (delta: 1.3 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 17:10:00,897 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 3980.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 992.4 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1065.21 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 851.4 MB). Free memory was 992.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 788.00 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 113.3 MB). Peak memory consumption was 113.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17402.29 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 292.6 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -385.5 MB). Peak memory consumption was 848.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213305.55 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 963.6 MB). Free memory was 2.4 GB in the beginning and 1.1 GB in the end (delta: 1.3 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was constructing difference of abstraction (187905states) and FLOYD_HOARE automaton (currently 4 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (193 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.1s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 191.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6743 SDtfs, 44063 SDslu, 3660 SDs, 0 SdLazy, 80672 SolverSat, 25333 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 164.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2918 GetRequests, 2874 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187905occurred in iteration=6, 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: 5.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 38644 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 6240 NumberOfCodeBlocks, 6240 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 6229 ConstructedInterpolants, 0 QuantifiedInterpolants, 22699439 SizeOfPredicates, 9 NumberOfNonLiveVariables, 3368 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 4434/4897 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown