java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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/Problem13_label07_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:08:43,877 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:08:43,879 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:08:43,891 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:08:43,892 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:08:43,893 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:08:43,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:08:43,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:08:43,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:08:43,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:08:43,903 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:08:43,904 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:08:43,905 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:08:43,906 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:08:43,907 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:08:43,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:08:43,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:08:43,917 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:08:43,922 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:08:43,929 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:08:43,930 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:08:43,932 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:08:43,934 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:08:43,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:08:43,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:08:43,935 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:08:43,936 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:08:43,937 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:08:43,937 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:08:43,939 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:08:43,939 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:08:43,939 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:08:43,942 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:08:43,957 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:08:43,957 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:08:43,958 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:08:43,958 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:08:43,959 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:08:43,959 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:08:43,959 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:08:43,959 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:08:43,960 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:08:43,960 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:08:43,960 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:08:43,960 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:08:43,960 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:08:43,961 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:08:43,961 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:08:43,961 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:08:43,961 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:08:43,961 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:08:43,962 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:08:43,962 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:08:43,962 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:08:43,962 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:08:43,962 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:08:43,963 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:08:43,963 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:08:43,963 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:08:43,963 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:08:43,963 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:08:44,007 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:08:44,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:08:44,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:08:44,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:08:44,025 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:08:44,026 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label07_false-unreach-call.c [2018-11-06 19:08:44,085 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a1648421/215b8d65092e41489bb2695ebd0bec74/FLAGdb9586451 [2018-11-06 19:08:44,950 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:08:44,951 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label07_false-unreach-call.c [2018-11-06 19:08:44,991 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a1648421/215b8d65092e41489bb2695ebd0bec74/FLAGdb9586451 [2018-11-06 19:08:45,012 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a1648421/215b8d65092e41489bb2695ebd0bec74 [2018-11-06 19:08:45,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:08:45,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:08:45,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:08:45,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:08:45,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:08:45,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:08:45" (1/1) ... [2018-11-06 19:08:45,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e178d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:45, skipping insertion in model container [2018-11-06 19:08:45,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:08:45" (1/1) ... [2018-11-06 19:08:45,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:08:45,235 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:08:46,725 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:08:46,730 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:08:47,431 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:08:47,475 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:08:47,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47 WrapperNode [2018-11-06 19:08:47,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:08:47,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:08:47,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:08:47,479 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:08:47,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:47,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:08:48,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:08:48,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:08:48,326 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:08:48,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... [2018-11-06 19:08:48,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:08:48,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:08:48,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:08:48,811 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:08:48,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:08:48,883 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:08:48,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:08:48,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:09:00,548 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:09:00,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:09:00 BoogieIcfgContainer [2018-11-06 19:09:00,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:09:00,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:09:00,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:09:00,553 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:09:00,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:08:45" (1/3) ... [2018-11-06 19:09:00,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753a2b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:09:00, skipping insertion in model container [2018-11-06 19:09:00,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:08:47" (2/3) ... [2018-11-06 19:09:00,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753a2b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:09:00, skipping insertion in model container [2018-11-06 19:09:00,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:09:00" (3/3) ... [2018-11-06 19:09:00,557 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label07_false-unreach-call.c [2018-11-06 19:09:00,567 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:09:00,582 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:09:00,599 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:09:00,670 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:09:00,671 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:09:00,671 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:09:00,671 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:09:00,671 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:09:00,672 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:09:00,672 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:09:00,672 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:09:00,672 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:09:00,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-11-06 19:09:00,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-06 19:09:00,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:09:00,738 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] [2018-11-06 19:09:00,741 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:09:00,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:09:00,746 INFO L82 PathProgramCache]: Analyzing trace with hash 682595178, now seen corresponding path program 1 times [2018-11-06 19:09:00,748 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:09:00,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:09:00,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:00,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:09:00,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:09:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:09:01,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:09:01,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:09:01,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:09:01,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:09:01,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:09:01,139 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-11-06 19:09:13,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:09:13,317 INFO L93 Difference]: Finished difference Result 3896 states and 7286 transitions. [2018-11-06 19:09:13,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:09:13,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-06 19:09:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:09:13,368 INFO L225 Difference]: With dead ends: 3896 [2018-11-06 19:09:13,368 INFO L226 Difference]: Without dead ends: 2790 [2018-11-06 19:09:13,380 INFO L604 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 [2018-11-06 19:09:13,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2018-11-06 19:09:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1945. [2018-11-06 19:09:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-11-06 19:09:13,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3412 transitions. [2018-11-06 19:09:13,537 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3412 transitions. Word has length 22 [2018-11-06 19:09:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:09:13,538 INFO L480 AbstractCegarLoop]: Abstraction has 1945 states and 3412 transitions. [2018-11-06 19:09:13,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:09:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3412 transitions. [2018-11-06 19:09:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-06 19:09:13,544 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:09:13,544 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:09:13,544 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:09:13,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:09:13,546 INFO L82 PathProgramCache]: Analyzing trace with hash -267031502, now seen corresponding path program 1 times [2018-11-06 19:09:13,546 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:09:13,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:09:13,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:13,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:09:13,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:09:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:09:14,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:09:14,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:09:14,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:09:14,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:09:14,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:09:14,162 INFO L87 Difference]: Start difference. First operand 1945 states and 3412 transitions. Second operand 5 states. [2018-11-06 19:09:28,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:09:28,509 INFO L93 Difference]: Finished difference Result 7061 states and 12475 transitions. [2018-11-06 19:09:28,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:09:28,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-11-06 19:09:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:09:28,536 INFO L225 Difference]: With dead ends: 7061 [2018-11-06 19:09:28,537 INFO L226 Difference]: Without dead ends: 5118 [2018-11-06 19:09:28,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:09:28,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5118 states. [2018-11-06 19:09:28,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5118 to 5117. [2018-11-06 19:09:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5117 states. [2018-11-06 19:09:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 7612 transitions. [2018-11-06 19:09:28,655 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 7612 transitions. Word has length 88 [2018-11-06 19:09:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:09:28,656 INFO L480 AbstractCegarLoop]: Abstraction has 5117 states and 7612 transitions. [2018-11-06 19:09:28,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:09:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 7612 transitions. [2018-11-06 19:09:28,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-06 19:09:28,662 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:09:28,662 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:09:28,663 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:09:28,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:09:28,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1398070453, now seen corresponding path program 1 times [2018-11-06 19:09:28,663 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:09:28,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:09:28,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:28,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:09:28,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:09:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-06 19:09:29,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:09:29,087 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:09:29,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:09:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:09:29,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:09:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-06 19:09:29,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:09:29,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 19:09:29,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:09:29,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:09:29,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:09:29,359 INFO L87 Difference]: Start difference. First operand 5117 states and 7612 transitions. Second operand 5 states. [2018-11-06 19:09:40,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:09:40,486 INFO L93 Difference]: Finished difference Result 15794 states and 24946 transitions. [2018-11-06 19:09:40,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:09:40,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2018-11-06 19:09:40,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:09:40,550 INFO L225 Difference]: With dead ends: 15794 [2018-11-06 19:09:40,550 INFO L226 Difference]: Without dead ends: 11467 [2018-11-06 19:09:40,557 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:09:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11467 states. [2018-11-06 19:09:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11467 to 11436. [2018-11-06 19:09:40,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11436 states. [2018-11-06 19:09:40,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11436 states to 11436 states and 15909 transitions. [2018-11-06 19:09:40,771 INFO L78 Accepts]: Start accepts. Automaton has 11436 states and 15909 transitions. Word has length 148 [2018-11-06 19:09:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:09:40,772 INFO L480 AbstractCegarLoop]: Abstraction has 11436 states and 15909 transitions. [2018-11-06 19:09:40,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:09:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 11436 states and 15909 transitions. [2018-11-06 19:09:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-11-06 19:09:40,776 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:09:40,776 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:09:40,777 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:09:40,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:09:40,777 INFO L82 PathProgramCache]: Analyzing trace with hash 801482757, now seen corresponding path program 1 times [2018-11-06 19:09:40,777 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:09:40,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:09:40,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:40,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:09:40,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:09:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:09:41,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:09:41,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:09:41,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:09:41,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:09:41,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:09:41,247 INFO L87 Difference]: Start difference. First operand 11436 states and 15909 transitions. Second operand 4 states. [2018-11-06 19:09:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:09:52,862 INFO L93 Difference]: Finished difference Result 28418 states and 40800 transitions. [2018-11-06 19:09:52,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:09:52,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 218 [2018-11-06 19:09:52,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:09:52,910 INFO L225 Difference]: With dead ends: 28418 [2018-11-06 19:09:52,910 INFO L226 Difference]: Without dead ends: 17772 [2018-11-06 19:09:52,925 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:09:52,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17772 states. [2018-11-06 19:09:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17772 to 17746. [2018-11-06 19:09:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17746 states. [2018-11-06 19:09:53,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17746 states to 17746 states and 23792 transitions. [2018-11-06 19:09:53,187 INFO L78 Accepts]: Start accepts. Automaton has 17746 states and 23792 transitions. Word has length 218 [2018-11-06 19:09:53,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:09:53,188 INFO L480 AbstractCegarLoop]: Abstraction has 17746 states and 23792 transitions. [2018-11-06 19:09:53,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:09:53,188 INFO L276 IsEmpty]: Start isEmpty. Operand 17746 states and 23792 transitions. [2018-11-06 19:09:53,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-11-06 19:09:53,200 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:09:53,200 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:09:53,201 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:09:53,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:09:53,201 INFO L82 PathProgramCache]: Analyzing trace with hash 809504239, now seen corresponding path program 1 times [2018-11-06 19:09:53,201 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:09:53,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:09:53,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:53,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:09:53,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:09:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:09:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-11-06 19:09:53,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:09:53,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:09:53,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:09:53,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:09:53,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:09:53,572 INFO L87 Difference]: Start difference. First operand 17746 states and 23792 transitions. Second operand 3 states. [2018-11-06 19:09:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:09:59,516 INFO L93 Difference]: Finished difference Result 50457 states and 68401 transitions. [2018-11-06 19:09:59,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:09:59,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2018-11-06 19:09:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:09:59,585 INFO L225 Difference]: With dead ends: 50457 [2018-11-06 19:09:59,585 INFO L226 Difference]: Without dead ends: 33501 [2018-11-06 19:09:59,611 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:09:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33501 states. [2018-11-06 19:10:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33501 to 33500. [2018-11-06 19:10:00,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33500 states. [2018-11-06 19:10:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33500 states to 33500 states and 42101 transitions. [2018-11-06 19:10:00,558 INFO L78 Accepts]: Start accepts. Automaton has 33500 states and 42101 transitions. Word has length 308 [2018-11-06 19:10:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:10:00,559 INFO L480 AbstractCegarLoop]: Abstraction has 33500 states and 42101 transitions. [2018-11-06 19:10:00,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:10:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 33500 states and 42101 transitions. [2018-11-06 19:10:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-11-06 19:10:00,575 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:10:00,575 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-06 19:10:00,576 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:10:00,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:10:00,577 INFO L82 PathProgramCache]: Analyzing trace with hash 751929461, now seen corresponding path program 1 times [2018-11-06 19:10:00,577 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:10:00,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:10:00,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:00,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:10:00,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:10:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-06 19:10:01,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:10:01,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:10:01,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:10:01,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:10:01,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:10:01,030 INFO L87 Difference]: Start difference. First operand 33500 states and 42101 transitions. Second operand 4 states. [2018-11-06 19:10:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:10:07,830 INFO L93 Difference]: Finished difference Result 71704 states and 91193 transitions. [2018-11-06 19:10:07,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:10:07,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 339 [2018-11-06 19:10:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:10:07,904 INFO L225 Difference]: With dead ends: 71704 [2018-11-06 19:10:07,904 INFO L226 Difference]: Without dead ends: 38994 [2018-11-06 19:10:07,938 INFO L604 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 [2018-11-06 19:10:07,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38994 states. [2018-11-06 19:10:08,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38994 to 38993. [2018-11-06 19:10:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38993 states. [2018-11-06 19:10:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38993 states to 38993 states and 46093 transitions. [2018-11-06 19:10:08,364 INFO L78 Accepts]: Start accepts. Automaton has 38993 states and 46093 transitions. Word has length 339 [2018-11-06 19:10:08,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:10:08,365 INFO L480 AbstractCegarLoop]: Abstraction has 38993 states and 46093 transitions. [2018-11-06 19:10:08,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:10:08,365 INFO L276 IsEmpty]: Start isEmpty. Operand 38993 states and 46093 transitions. [2018-11-06 19:10:08,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-11-06 19:10:08,385 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:10:08,385 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:10:08,385 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:10:08,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:10:08,388 INFO L82 PathProgramCache]: Analyzing trace with hash 11430192, now seen corresponding path program 1 times [2018-11-06 19:10:08,388 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:10:08,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:10:08,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:08,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:10:08,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:10:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-11-06 19:10:09,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:10:09,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:10:09,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:10:09,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:10:09,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:10:09,134 INFO L87 Difference]: Start difference. First operand 38993 states and 46093 transitions. Second operand 3 states. [2018-11-06 19:10:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:10:14,766 INFO L93 Difference]: Finished difference Result 77183 states and 91260 transitions. [2018-11-06 19:10:14,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:10:14,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 412 [2018-11-06 19:10:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:10:14,841 INFO L225 Difference]: With dead ends: 77183 [2018-11-06 19:10:14,841 INFO L226 Difference]: Without dead ends: 38980 [2018-11-06 19:10:14,871 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:10:14,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38980 states. [2018-11-06 19:10:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38980 to 38979. [2018-11-06 19:10:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38979 states. [2018-11-06 19:10:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38979 states to 38979 states and 43637 transitions. [2018-11-06 19:10:15,265 INFO L78 Accepts]: Start accepts. Automaton has 38979 states and 43637 transitions. Word has length 412 [2018-11-06 19:10:15,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:10:15,266 INFO L480 AbstractCegarLoop]: Abstraction has 38979 states and 43637 transitions. [2018-11-06 19:10:15,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:10:15,266 INFO L276 IsEmpty]: Start isEmpty. Operand 38979 states and 43637 transitions. [2018-11-06 19:10:15,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-11-06 19:10:15,291 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:10:15,291 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 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] [2018-11-06 19:10:15,292 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:10:15,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:10:15,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1763756656, now seen corresponding path program 1 times [2018-11-06 19:10:15,292 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:10:15,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:10:15,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:15,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:10:15,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:10:15,802 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-11-06 19:10:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-06 19:10:16,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:10:16,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:10:16,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:10:16,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:10:16,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:10:16,089 INFO L87 Difference]: Start difference. First operand 38979 states and 43637 transitions. Second operand 4 states. [2018-11-06 19:10:22,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:10:22,909 INFO L93 Difference]: Finished difference Result 84261 states and 94220 transitions. [2018-11-06 19:10:22,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:10:22,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 414 [2018-11-06 19:10:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:10:22,964 INFO L225 Difference]: With dead ends: 84261 [2018-11-06 19:10:22,964 INFO L226 Difference]: Without dead ends: 46072 [2018-11-06 19:10:22,987 INFO L604 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 [2018-11-06 19:10:23,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46072 states. [2018-11-06 19:10:23,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46072 to 44495. [2018-11-06 19:10:23,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44495 states. [2018-11-06 19:10:23,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44495 states to 44495 states and 49698 transitions. [2018-11-06 19:10:23,420 INFO L78 Accepts]: Start accepts. Automaton has 44495 states and 49698 transitions. Word has length 414 [2018-11-06 19:10:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:10:23,421 INFO L480 AbstractCegarLoop]: Abstraction has 44495 states and 49698 transitions. [2018-11-06 19:10:23,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:10:23,421 INFO L276 IsEmpty]: Start isEmpty. Operand 44495 states and 49698 transitions. [2018-11-06 19:10:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-11-06 19:10:23,443 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:10:23,443 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:10:23,443 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:10:23,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:10:23,444 INFO L82 PathProgramCache]: Analyzing trace with hash 963684070, now seen corresponding path program 1 times [2018-11-06 19:10:23,444 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:10:23,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:10:23,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:23,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:10:23,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:10:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 256 proven. 91 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-06 19:10:23,921 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:10:23,921 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:10:23,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:10:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:10:24,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:10:24,593 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-06 19:10:24,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:10:24,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-11-06 19:10:24,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:10:24,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:10:24,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:10:24,627 INFO L87 Difference]: Start difference. First operand 44495 states and 49698 transitions. Second operand 7 states. [2018-11-06 19:10:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:10:48,288 INFO L93 Difference]: Finished difference Result 182888 states and 202880 transitions. [2018-11-06 19:10:48,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-06 19:10:48,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 442 [2018-11-06 19:10:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:10:48,433 INFO L225 Difference]: With dead ends: 182888 [2018-11-06 19:10:48,433 INFO L226 Difference]: Without dead ends: 112285 [2018-11-06 19:10:48,475 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-11-06 19:10:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112285 states. [2018-11-06 19:10:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112285 to 102014. [2018-11-06 19:10:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102014 states. [2018-11-06 19:10:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102014 states to 102014 states and 108393 transitions. [2018-11-06 19:10:49,513 INFO L78 Accepts]: Start accepts. Automaton has 102014 states and 108393 transitions. Word has length 442 [2018-11-06 19:10:49,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:10:49,514 INFO L480 AbstractCegarLoop]: Abstraction has 102014 states and 108393 transitions. [2018-11-06 19:10:49,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:10:49,514 INFO L276 IsEmpty]: Start isEmpty. Operand 102014 states and 108393 transitions. [2018-11-06 19:10:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2018-11-06 19:10:49,550 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:10:49,550 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-11-06 19:10:49,551 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:10:49,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:10:49,551 INFO L82 PathProgramCache]: Analyzing trace with hash -196318809, now seen corresponding path program 1 times [2018-11-06 19:10:49,551 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:10:49,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:10:49,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:49,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:10:49,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:10:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:10:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-11-06 19:10:49,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:10:49,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:10:49,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:10:49,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:10:49,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:10:49,984 INFO L87 Difference]: Start difference. First operand 102014 states and 108393 transitions. Second operand 5 states. [2018-11-06 19:11:03,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:11:03,690 INFO L93 Difference]: Finished difference Result 342967 states and 364431 transitions. [2018-11-06 19:11:03,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:11:03,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 661 [2018-11-06 19:11:03,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:11:03,972 INFO L225 Difference]: With dead ends: 342967 [2018-11-06 19:11:03,973 INFO L226 Difference]: Without dead ends: 240162 [2018-11-06 19:11:04,052 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:11:04,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240162 states. [2018-11-06 19:11:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240162 to 221867. [2018-11-06 19:11:06,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221867 states. [2018-11-06 19:11:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221867 states to 221867 states and 234064 transitions. [2018-11-06 19:11:07,135 INFO L78 Accepts]: Start accepts. Automaton has 221867 states and 234064 transitions. Word has length 661 [2018-11-06 19:11:07,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:11:07,135 INFO L480 AbstractCegarLoop]: Abstraction has 221867 states and 234064 transitions. [2018-11-06 19:11:07,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:11:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 221867 states and 234064 transitions. [2018-11-06 19:11:07,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2018-11-06 19:11:07,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:11:07,171 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:11:07,172 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:11:07,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:11:07,172 INFO L82 PathProgramCache]: Analyzing trace with hash -556927638, now seen corresponding path program 1 times [2018-11-06 19:11:07,172 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:11:07,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:11:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:11:07,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:11:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:11:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:11:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 860 proven. 16 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2018-11-06 19:11:07,987 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:11:07,987 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:11:07,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:11:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:11:08,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:11:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 860 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-11-06 19:11:08,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:11:08,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 19:11:08,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:11:08,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:11:08,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:11:08,512 INFO L87 Difference]: Start difference. First operand 221867 states and 234064 transitions. Second operand 5 states. [2018-11-06 19:11:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:11:19,559 INFO L93 Difference]: Finished difference Result 442961 states and 467253 transitions. [2018-11-06 19:11:19,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:11:19,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 673 [2018-11-06 19:11:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:11:19,846 INFO L225 Difference]: With dead ends: 442961 [2018-11-06 19:11:19,846 INFO L226 Difference]: Without dead ends: 218725 [2018-11-06 19:11:19,959 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:11:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218725 states. [2018-11-06 19:11:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218725 to 204500. [2018-11-06 19:11:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204500 states. [2018-11-06 19:11:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204500 states to 204500 states and 211403 transitions. [2018-11-06 19:11:22,824 INFO L78 Accepts]: Start accepts. Automaton has 204500 states and 211403 transitions. Word has length 673 [2018-11-06 19:11:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:11:22,825 INFO L480 AbstractCegarLoop]: Abstraction has 204500 states and 211403 transitions. [2018-11-06 19:11:22,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:11:22,825 INFO L276 IsEmpty]: Start isEmpty. Operand 204500 states and 211403 transitions. [2018-11-06 19:11:22,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2018-11-06 19:11:22,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:11:22,851 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:11:22,851 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:11:22,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:11:22,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1573382673, now seen corresponding path program 1 times [2018-11-06 19:11:22,852 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:11:22,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:11:22,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:11:22,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:11:22,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:11:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:11:23,618 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-06 19:11:24,202 WARN L179 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2018-11-06 19:11:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 282 proven. 730 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2018-11-06 19:11:28,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:11:28,183 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:11:28,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:11:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:11:28,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:11:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 782 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2018-11-06 19:11:29,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:11:29,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 17 [2018-11-06 19:11:29,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-06 19:11:29,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-06 19:11:29,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-11-06 19:11:29,776 INFO L87 Difference]: Start difference. First operand 204500 states and 211403 transitions. Second operand 18 states. [2018-11-06 19:11:30,114 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 21 Received shutdown request... [2018-11-06 19:12:31,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-11-06 19:12:31,345 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:12:31,350 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:12:31,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:12:31 BoogieIcfgContainer [2018-11-06 19:12:31,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:12:31,351 INFO L168 Benchmark]: Toolchain (without parser) took 226325.48 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-06 19:12:31,352 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-11-06 19:12:31,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2449.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-06 19:12:31,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 846.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 804.8 MB). Free memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-06 19:12:31,354 INFO L168 Benchmark]: Boogie Preprocessor took 484.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. [2018-11-06 19:12:31,355 INFO L168 Benchmark]: RCFGBuilder took 11738.08 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 255.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 591.3 MB. Max. memory is 7.1 GB. [2018-11-06 19:12:31,356 INFO L168 Benchmark]: TraceAbstraction took 210800.68 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -570.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-06 19:12:31,361 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 2449.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 846.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 804.8 MB). Free memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 484.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11738.08 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 255.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 591.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210800.68 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -570.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 75). Cancelled while BasicCegarLoop was constructing difference of abstraction (204500states) and FLOYD_HOARE automaton (currently 39 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (291189 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.6s OverallTime, 12 OverallIterations, 7 TraceHistogramMax, 186.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10341 SDtfs, 57100 SDslu, 4894 SDs, 0 SdLazy, 105997 SolverSat, 17910 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 146.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2071 GetRequests, 1985 SyntacticMatches, 8 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221867occurred in iteration=10, 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: 9.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 45274 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 6416 NumberOfCodeBlocks, 6416 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6400 ConstructedInterpolants, 90 QuantifiedInterpolants, 14485825 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2571 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 7112/7953 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown