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_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:10:00,907 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:10:00,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:10:00,926 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:10:00,927 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:10:00,928 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:10:00,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:10:00,933 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:10:00,936 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:10:00,937 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:10:00,939 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:10:00,939 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:10:00,940 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:10:00,942 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:10:00,946 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:10:00,949 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:10:00,950 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:10:00,952 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:10:00,954 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:10:00,956 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:10:00,957 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:10:00,958 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:10:00,961 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:10:00,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:10:00,961 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:10:00,962 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:10:00,963 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:10:00,964 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:10:00,965 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:10:00,966 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:10:00,966 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:10:00,967 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 22:10:00,969 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 [2018-10-26 22:10:00,995 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:10:00,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:10:00,996 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:10:00,996 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:10:00,997 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:10:00,997 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:10:00,997 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:10:00,998 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:10:00,998 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:10:00,998 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:10:00,998 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:10:00,998 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:10:00,999 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:10:00,999 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:10:00,999 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:10:00,999 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:10:00,999 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:10:01,001 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:10:01,001 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:10:01,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:10:01,001 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:10:01,002 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:10:01,002 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:10:01,002 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:10:01,002 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:10:01,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:10:01,003 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:10:01,003 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:10:01,057 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:10:01,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:10:01,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:10:01,087 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:10:01,088 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:10:01,088 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-10-26 22:10:01,157 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc28be4be/4b47ccd6e40c44688e6677482e80b60b/FLAG86c79fcf4 [2018-10-26 22:10:02,065 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:10:02,066 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-10-26 22:10:02,112 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc28be4be/4b47ccd6e40c44688e6677482e80b60b/FLAG86c79fcf4 [2018-10-26 22:10:02,128 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc28be4be/4b47ccd6e40c44688e6677482e80b60b [2018-10-26 22:10:02,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:10:02,142 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:10:02,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:10:02,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:10:02,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:10:02,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:10:02" (1/1) ... [2018-10-26 22:10:02,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c383fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:02, skipping insertion in model container [2018-10-26 22:10:02,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:10:02" (1/1) ... [2018-10-26 22:10:02,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:10:02,426 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:10:04,436 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:10:04,443 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:10:05,652 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:10:05,705 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:10:05,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05 WrapperNode [2018-10-26 22:10:05,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:10:05,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:10:05,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:10:05,707 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:10:05,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:05,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:06,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:10:06,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:10:06,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:10:06,760 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:10:06,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:06,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:06,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:06,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:07,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:07,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:07,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (1/1) ... [2018-10-26 22:10:07,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:10:07,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:10:07,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:10:07,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:10:07,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (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 [2018-10-26 22:10:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 22:10:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:10:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:10:24,119 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:10:24,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:10:24 BoogieIcfgContainer [2018-10-26 22:10:24,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:10:24,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:10:24,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:10:24,126 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:10:24,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:10:02" (1/3) ... [2018-10-26 22:10:24,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7eb5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:10:24, skipping insertion in model container [2018-10-26 22:10:24,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:10:05" (2/3) ... [2018-10-26 22:10:24,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7eb5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:10:24, skipping insertion in model container [2018-10-26 22:10:24,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:10:24" (3/3) ... [2018-10-26 22:10:24,131 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label24_true-unreach-call.c [2018-10-26 22:10:24,141 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:10:24,158 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:10:24,175 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:10:24,221 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:10:24,222 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:10:24,222 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:10:24,222 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:10:24,222 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:10:24,222 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:10:24,223 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:10:24,223 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:10:24,223 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:10:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-26 22:10:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-26 22:10:24,277 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:24,278 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, 1, 1, 1, 1] [2018-10-26 22:10:24,281 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:24,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:24,287 INFO L82 PathProgramCache]: Analyzing trace with hash 279835594, now seen corresponding path program 1 times [2018-10-26 22:10:24,289 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:24,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:24,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:24,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:24,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:24,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:10:24,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:10:24,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:10:24,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:10:24,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:10:24,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:10:24,800 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-26 22:10:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:10:49,034 INFO L93 Difference]: Finished difference Result 6326 states and 12085 transitions. [2018-10-26 22:10:49,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:10:49,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-10-26 22:10:49,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:10:49,104 INFO L225 Difference]: With dead ends: 6326 [2018-10-26 22:10:49,104 INFO L226 Difference]: Without dead ends: 4570 [2018-10-26 22:10:49,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:10:49,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2018-10-26 22:10:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2018-10-26 22:10:49,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2018-10-26 22:10:49,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7499 transitions. [2018-10-26 22:10:49,420 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7499 transitions. Word has length 46 [2018-10-26 22:10:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:10:49,421 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 7499 transitions. [2018-10-26 22:10:49,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:10:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7499 transitions. [2018-10-26 22:10:49,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-26 22:10:49,429 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:49,429 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, 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] [2018-10-26 22:10:49,430 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:49,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:49,430 INFO L82 PathProgramCache]: Analyzing trace with hash -2006626889, now seen corresponding path program 1 times [2018-10-26 22:10:49,430 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:49,431 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:49,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:49,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:49,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:10:49,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:10:49,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:10:49,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:10:49,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:10:49,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:10:49,751 INFO L87 Difference]: Start difference. First operand 4564 states and 7499 transitions. Second operand 4 states. [2018-10-26 22:11:22,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:11:22,451 INFO L93 Difference]: Finished difference Result 17552 states and 29056 transitions. [2018-10-26 22:11:22,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:11:22,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2018-10-26 22:11:22,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:11:22,510 INFO L225 Difference]: With dead ends: 17552 [2018-10-26 22:11:22,510 INFO L226 Difference]: Without dead ends: 12990 [2018-10-26 22:11:22,519 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2018-10-26 22:11:22,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 8666. [2018-10-26 22:11:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8666 states. [2018-10-26 22:11:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8666 states to 8666 states and 13862 transitions. [2018-10-26 22:11:22,716 INFO L78 Accepts]: Start accepts. Automaton has 8666 states and 13862 transitions. Word has length 150 [2018-10-26 22:11:22,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:11:22,716 INFO L481 AbstractCegarLoop]: Abstraction has 8666 states and 13862 transitions. [2018-10-26 22:11:22,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:11:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 8666 states and 13862 transitions. [2018-10-26 22:11:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-26 22:11:22,726 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:11:22,726 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, 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] [2018-10-26 22:11:22,727 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:11:22,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:11:22,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1483607059, now seen corresponding path program 1 times [2018-10-26 22:11:22,727 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:11:22,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:11:22,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:22,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:11:22,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:11:23,087 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:11:23,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:11:23,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:11:23,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:11:23,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:11:23,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:23,089 INFO L87 Difference]: Start difference. First operand 8666 states and 13862 transitions. Second operand 4 states. [2018-10-26 22:11:43,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:11:43,208 INFO L93 Difference]: Finished difference Result 33844 states and 54415 transitions. [2018-10-26 22:11:43,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:11:43,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2018-10-26 22:11:43,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:11:43,287 INFO L225 Difference]: With dead ends: 33844 [2018-10-26 22:11:43,287 INFO L226 Difference]: Without dead ends: 25180 [2018-10-26 22:11:43,298 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 [2018-10-26 22:11:43,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25180 states. [2018-10-26 22:11:43,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25180 to 25142. [2018-10-26 22:11:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25142 states. [2018-10-26 22:11:43,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25142 states to 25142 states and 35892 transitions. [2018-10-26 22:11:43,661 INFO L78 Accepts]: Start accepts. Automaton has 25142 states and 35892 transitions. Word has length 154 [2018-10-26 22:11:43,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:11:43,662 INFO L481 AbstractCegarLoop]: Abstraction has 25142 states and 35892 transitions. [2018-10-26 22:11:43,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:11:43,662 INFO L276 IsEmpty]: Start isEmpty. Operand 25142 states and 35892 transitions. [2018-10-26 22:11:43,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-26 22:11:43,667 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:11:43,667 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, 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] [2018-10-26 22:11:43,667 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:11:43,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:11:43,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1749040983, now seen corresponding path program 1 times [2018-10-26 22:11:43,668 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:11:43,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:11:43,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:43,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:11:43,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:11:44,017 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-26 22:11:44,056 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:11:44,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:11:44,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:11:44,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:11:44,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:11:44,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:44,058 INFO L87 Difference]: Start difference. First operand 25142 states and 35892 transitions. Second operand 4 states. [2018-10-26 22:12:02,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:12:02,710 INFO L93 Difference]: Finished difference Result 98404 states and 140796 transitions. [2018-10-26 22:12:02,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:12:02,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-10-26 22:12:02,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:12:02,842 INFO L225 Difference]: With dead ends: 98404 [2018-10-26 22:12:02,842 INFO L226 Difference]: Without dead ends: 73264 [2018-10-26 22:12:02,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:12:02,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73264 states. [2018-10-26 22:12:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73264 to 73244. [2018-10-26 22:12:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73244 states. [2018-10-26 22:12:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73244 states to 73244 states and 91793 transitions. [2018-10-26 22:12:03,757 INFO L78 Accepts]: Start accepts. Automaton has 73244 states and 91793 transitions. Word has length 177 [2018-10-26 22:12:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:12:03,757 INFO L481 AbstractCegarLoop]: Abstraction has 73244 states and 91793 transitions. [2018-10-26 22:12:03,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:12:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 73244 states and 91793 transitions. [2018-10-26 22:12:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2018-10-26 22:12:03,769 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:12:03,769 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:12:03,770 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:12:03,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:12:03,770 INFO L82 PathProgramCache]: Analyzing trace with hash -775084423, now seen corresponding path program 1 times [2018-10-26 22:12:03,770 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:12:03,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:12:03,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:03,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:12:03,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:12:04,412 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-26 22:12:04,543 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-10-26 22:12:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-10-26 22:12:05,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:12:05,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:12:05,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:12:05,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:12:05,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:12:05,470 INFO L87 Difference]: Start difference. First operand 73244 states and 91793 transitions. Second operand 7 states. [2018-10-26 22:12:42,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:12:42,317 INFO L93 Difference]: Finished difference Result 172454 states and 210825 transitions. [2018-10-26 22:12:42,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:12:42,317 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 501 [2018-10-26 22:12:42,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:12:42,549 INFO L225 Difference]: With dead ends: 172454 [2018-10-26 22:12:42,549 INFO L226 Difference]: Without dead ends: 99212 [2018-10-26 22:12:42,589 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-26 22:12:42,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99212 states. [2018-10-26 22:12:43,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99212 to 95108. [2018-10-26 22:12:43,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95108 states. [2018-10-26 22:12:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95108 states to 95108 states and 114314 transitions. [2018-10-26 22:12:43,480 INFO L78 Accepts]: Start accepts. Automaton has 95108 states and 114314 transitions. Word has length 501 [2018-10-26 22:12:43,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:12:43,481 INFO L481 AbstractCegarLoop]: Abstraction has 95108 states and 114314 transitions. [2018-10-26 22:12:43,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:12:43,481 INFO L276 IsEmpty]: Start isEmpty. Operand 95108 states and 114314 transitions. [2018-10-26 22:12:43,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2018-10-26 22:12:43,495 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:12:43,495 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:12:43,496 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:12:43,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:12:43,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1403289569, now seen corresponding path program 1 times [2018-10-26 22:12:43,496 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:12:43,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:12:43,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:43,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:12:43,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:12:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-10-26 22:12:44,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:12:44,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:12:44,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:12:44,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:12:44,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:12:44,072 INFO L87 Difference]: Start difference. First operand 95108 states and 114314 transitions. Second operand 4 states. [2018-10-26 22:13:03,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:13:03,070 INFO L93 Difference]: Finished difference Result 238036 states and 291029 transitions. [2018-10-26 22:13:03,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:13:03,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 529 [2018-10-26 22:13:03,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:13:03,262 INFO L225 Difference]: With dead ends: 238036 [2018-10-26 22:13:03,263 INFO L226 Difference]: Without dead ends: 142930 [2018-10-26 22:13:03,338 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:13:03,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142930 states. [2018-10-26 22:13:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142930 to 142919. [2018-10-26 22:13:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142919 states. [2018-10-26 22:13:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142919 states to 142919 states and 167348 transitions. [2018-10-26 22:13:05,290 INFO L78 Accepts]: Start accepts. Automaton has 142919 states and 167348 transitions. Word has length 529 [2018-10-26 22:13:05,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:13:05,290 INFO L481 AbstractCegarLoop]: Abstraction has 142919 states and 167348 transitions. [2018-10-26 22:13:05,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:13:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 142919 states and 167348 transitions. [2018-10-26 22:13:05,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2018-10-26 22:13:05,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:13:05,323 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:13:05,323 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:13:05,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:13:05,323 INFO L82 PathProgramCache]: Analyzing trace with hash -162915854, now seen corresponding path program 1 times [2018-10-26 22:13:05,324 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:13:05,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:13:05,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:05,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:13:05,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:13:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-26 22:13:06,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:13:06,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:13:06,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:13:06,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:13:06,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:13:06,550 INFO L87 Difference]: Start difference. First operand 142919 states and 167348 transitions. Second operand 4 states. [2018-10-26 22:13:28,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:13:28,557 INFO L93 Difference]: Finished difference Result 285839 states and 334703 transitions. [2018-10-26 22:13:28,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:13:28,562 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 901 [2018-10-26 22:13:28,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:13:28,734 INFO L225 Difference]: With dead ends: 285839 [2018-10-26 22:13:28,734 INFO L226 Difference]: Without dead ends: 142922 [2018-10-26 22:13:28,813 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:13:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142922 states. [2018-10-26 22:13:30,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142922 to 131983. [2018-10-26 22:13:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131983 states. [2018-10-26 22:13:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131983 states to 131983 states and 147276 transitions. [2018-10-26 22:13:30,983 INFO L78 Accepts]: Start accepts. Automaton has 131983 states and 147276 transitions. Word has length 901 [2018-10-26 22:13:30,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:13:30,984 INFO L481 AbstractCegarLoop]: Abstraction has 131983 states and 147276 transitions. [2018-10-26 22:13:30,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:13:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 131983 states and 147276 transitions. [2018-10-26 22:13:30,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2018-10-26 22:13:30,999 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:13:31,000 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:13:31,001 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:13:31,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:13:31,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1040125018, now seen corresponding path program 1 times [2018-10-26 22:13:31,001 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:13:31,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:13:31,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:31,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:13:31,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:13:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2018-10-26 22:13:32,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:13:32,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:13:32,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:13:32,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:13:32,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:13:32,103 INFO L87 Difference]: Start difference. First operand 131983 states and 147276 transitions. Second operand 4 states. [2018-10-26 22:13:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:13:52,794 INFO L93 Difference]: Finished difference Result 451281 states and 505305 transitions. [2018-10-26 22:13:52,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:13:52,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 919 [2018-10-26 22:13:52,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:13:53,119 INFO L225 Difference]: With dead ends: 451281 [2018-10-26 22:13:53,119 INFO L226 Difference]: Without dead ends: 315195 [2018-10-26 22:13:53,189 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 [2018-10-26 22:13:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315195 states. [2018-10-26 22:13:56,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315195 to 313672. [2018-10-26 22:13:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313672 states. [2018-10-26 22:13:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313672 states to 313672 states and 340741 transitions. [2018-10-26 22:13:56,863 INFO L78 Accepts]: Start accepts. Automaton has 313672 states and 340741 transitions. Word has length 919 [2018-10-26 22:13:56,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:13:56,864 INFO L481 AbstractCegarLoop]: Abstraction has 313672 states and 340741 transitions. [2018-10-26 22:13:56,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:13:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 313672 states and 340741 transitions. [2018-10-26 22:13:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1145 [2018-10-26 22:13:56,891 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:13:56,892 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:13:56,892 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:13:56,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:13:56,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1323120000, now seen corresponding path program 1 times [2018-10-26 22:13:56,893 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:13:56,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:13:56,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:56,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:13:56,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:13:57,525 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-26 22:13:58,005 WARN L179 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 Received shutdown request... [2018-10-26 22:13:58,502 WARN L187 SmtUtils]: Removed 3 from assertion stack [2018-10-26 22:13:58,503 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 22:13:58,508 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 22:13:58,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:13:58 BoogieIcfgContainer [2018-10-26 22:13:58,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:13:58,509 INFO L168 Benchmark]: Toolchain (without parser) took 236368.52 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 823.2 MB in the end (delta: 579.1 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-26 22:13:58,511 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-26 22:13:58,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3560.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:58,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 1052.45 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 864.6 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:58,513 INFO L168 Benchmark]: Boogie Preprocessor took 669.98 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 113.4 MB). Peak memory consumption was 113.4 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:58,514 INFO L168 Benchmark]: RCFGBuilder took 16690.85 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 287.3 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -399.1 MB). Peak memory consumption was 856.8 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:58,515 INFO L168 Benchmark]: TraceAbstraction took 214386.57 ms. Allocated memory was 2.7 GB in the beginning and 3.3 GB in the end (delta: 651.7 MB). Free memory was 2.4 GB in the beginning and 823.2 MB in the end (delta: 1.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-26 22:13:58,520 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 3560.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1052.45 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 864.6 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 669.98 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 113.4 MB). Peak memory consumption was 113.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16690.85 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 287.3 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -399.1 MB). Peak memory consumption was 856.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214386.57 ms. Allocated memory was 2.7 GB in the beginning and 3.3 GB in the end (delta: 651.7 MB). Free memory was 2.4 GB in the beginning and 823.2 MB in the end (delta: 1.6 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: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was analyzing trace of length 1145 with TraceHistMax 4,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 38. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 214.2s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 195.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9018 SDtfs, 31979 SDslu, 3756 SDs, 0 SdLazy, 81642 SolverSat, 17771 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 164.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313672occurred in iteration=8, 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: 10.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 20965 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3377 NumberOfCodeBlocks, 3377 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3369 ConstructedInterpolants, 0 QuantifiedInterpolants, 5014169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 2231/2231 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown