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/Problem12_label19_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:03:42,266 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:03:42,268 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:03:42,280 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:03:42,280 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:03:42,281 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:03:42,283 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:03:42,284 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:03:42,286 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:03:42,287 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:03:42,288 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:03:42,288 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:03:42,289 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:03:42,290 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:03:42,291 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:03:42,292 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:03:42,293 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:03:42,294 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:03:42,296 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:03:42,298 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:03:42,299 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:03:42,300 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:03:42,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:03:42,303 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:03:42,303 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:03:42,304 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:03:42,305 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:03:42,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:03:42,307 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:03:42,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:03:42,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:03:42,309 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:03:42,314 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 19:03:42,346 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:03:42,347 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:03:42,348 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:03:42,348 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:03:42,348 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:03:42,348 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:03:42,349 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:03:42,349 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:03:42,349 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:03:42,349 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:03:42,349 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:03:42,350 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:03:42,350 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:03:42,350 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:03:42,350 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:03:42,350 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:03:42,352 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:03:42,352 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:03:42,352 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:03:42,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:03:42,353 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:03:42,353 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:03:42,353 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:03:42,353 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:03:42,354 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:03:42,354 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:03:42,354 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:03:42,354 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:03:42,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:03:42,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:03:42,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:03:42,440 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:03:42,440 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:03:42,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label19_false-unreach-call.c [2018-11-06 19:03:42,507 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79894b57/6aba553c00594c9eb9e924c018a06262/FLAG7086b77eb [2018-11-06 19:03:43,301 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:03:43,302 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label19_false-unreach-call.c [2018-11-06 19:03:43,330 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79894b57/6aba553c00594c9eb9e924c018a06262/FLAG7086b77eb [2018-11-06 19:03:43,347 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79894b57/6aba553c00594c9eb9e924c018a06262 [2018-11-06 19:03:43,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:03:43,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:03:43,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:03:43,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:03:43,368 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:03:43,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:03:43" (1/1) ... [2018-11-06 19:03:43,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59271772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:43, skipping insertion in model container [2018-11-06 19:03:43,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:03:43" (1/1) ... [2018-11-06 19:03:43,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:03:43,567 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:03:44,902 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:03:44,907 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:03:45,531 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:03:45,565 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:03:45,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45 WrapperNode [2018-11-06 19:03:45,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:03:45,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:03:45,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:03:45,567 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:03:45,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:45,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:03:46,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:03:46,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:03:46,189 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:03:46,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (1/1) ... [2018-11-06 19:03:46,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:03:46,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:03:46,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:03:46,549 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:03:46,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (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 19:03:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:03:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:03:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:03:55,036 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:03:55,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:03:55 BoogieIcfgContainer [2018-11-06 19:03:55,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:03:55,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:03:55,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:03:55,041 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:03:55,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:03:43" (1/3) ... [2018-11-06 19:03:55,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540837d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:03:55, skipping insertion in model container [2018-11-06 19:03:55,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:45" (2/3) ... [2018-11-06 19:03:55,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540837d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:03:55, skipping insertion in model container [2018-11-06 19:03:55,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:03:55" (3/3) ... [2018-11-06 19:03:55,046 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label19_false-unreach-call.c [2018-11-06 19:03:55,055 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:03:55,064 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:03:55,082 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:03:55,124 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:03:55,125 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:03:55,125 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:03:55,125 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:03:55,125 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:03:55,125 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:03:55,125 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:03:55,126 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:03:55,126 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:03:55,174 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-11-06 19:03:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-06 19:03:55,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:03:55,188 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:03:55,191 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:03:55,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:03:55,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1961166346, now seen corresponding path program 1 times [2018-11-06 19:03:55,199 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:03:55,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:03:55,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:03:55,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:03:55,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:03:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:03:55,550 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 19:03:55,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:03:55,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:03:55,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:03:55,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:03:55,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:03:55,580 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-11-06 19:04:07,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:07,870 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-11-06 19:04:07,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:04:07,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-06 19:04:07,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:07,914 INFO L225 Difference]: With dead ends: 3146 [2018-11-06 19:04:07,915 INFO L226 Difference]: Without dead ends: 2320 [2018-11-06 19:04:07,922 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 19:04:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-11-06 19:04:08,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-11-06 19:04:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-11-06 19:04:08,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-11-06 19:04:08,083 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 15 [2018-11-06 19:04:08,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:08,083 INFO L480 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-11-06 19:04:08,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:04:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-11-06 19:04:08,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-06 19:04:08,090 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:08,090 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:04:08,090 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:08,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:08,091 INFO L82 PathProgramCache]: Analyzing trace with hash -373120294, now seen corresponding path program 1 times [2018-11-06 19:04:08,091 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:08,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:08,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:08,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:08,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:08,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:04:08,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:04:08,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:04:08,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:04:08,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:04:08,528 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 4 states. [2018-11-06 19:04:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:19,297 INFO L93 Difference]: Finished difference Result 9150 states and 15304 transitions. [2018-11-06 19:04:19,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:04:19,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2018-11-06 19:04:19,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:19,333 INFO L225 Difference]: With dead ends: 9150 [2018-11-06 19:04:19,334 INFO L226 Difference]: Without dead ends: 6832 [2018-11-06 19:04:19,339 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 19:04:19,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2018-11-06 19:04:19,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2018-11-06 19:04:19,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6832 states. [2018-11-06 19:04:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 10776 transitions. [2018-11-06 19:04:19,482 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 10776 transitions. Word has length 87 [2018-11-06 19:04:19,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:19,486 INFO L480 AbstractCegarLoop]: Abstraction has 6832 states and 10776 transitions. [2018-11-06 19:04:19,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:04:19,486 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 10776 transitions. [2018-11-06 19:04:19,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-06 19:04:19,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:19,498 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:04:19,498 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:19,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:19,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1497999273, now seen corresponding path program 1 times [2018-11-06 19:04:19,500 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:19,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:19,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:19,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:19,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:19,896 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-06 19:04:20,117 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2018-11-06 19:04:20,300 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-11-06 19:04:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:20,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:04:20,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 19:04:20,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:04:20,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:04:20,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:04:20,368 INFO L87 Difference]: Start difference. First operand 6832 states and 10776 transitions. Second operand 6 states. [2018-11-06 19:04:32,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:32,995 INFO L93 Difference]: Finished difference Result 15918 states and 24201 transitions. [2018-11-06 19:04:33,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:04:33,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-11-06 19:04:33,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:33,042 INFO L225 Difference]: With dead ends: 15918 [2018-11-06 19:04:33,042 INFO L226 Difference]: Without dead ends: 9088 [2018-11-06 19:04:33,052 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:04:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9088 states. [2018-11-06 19:04:33,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9088 to 9088. [2018-11-06 19:04:33,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9088 states. [2018-11-06 19:04:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9088 states to 9088 states and 12817 transitions. [2018-11-06 19:04:33,238 INFO L78 Accepts]: Start accepts. Automaton has 9088 states and 12817 transitions. Word has length 93 [2018-11-06 19:04:33,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:33,239 INFO L480 AbstractCegarLoop]: Abstraction has 9088 states and 12817 transitions. [2018-11-06 19:04:33,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:04:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 9088 states and 12817 transitions. [2018-11-06 19:04:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-11-06 19:04:33,245 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:33,245 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:04:33,245 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:33,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:33,246 INFO L82 PathProgramCache]: Analyzing trace with hash -629270407, now seen corresponding path program 1 times [2018-11-06 19:04:33,246 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:33,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:33,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:33,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:33,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:33,751 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2018-11-06 19:04:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 91 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:33,802 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:04:33,802 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 19:04:33,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:33,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:04:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:34,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:04:34,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-11-06 19:04:34,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:04:34,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:04:34,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:04:34,078 INFO L87 Difference]: Start difference. First operand 9088 states and 12817 transitions. Second operand 7 states. [2018-11-06 19:04:34,836 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-11-06 19:04:55,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:55,016 INFO L93 Difference]: Finished difference Result 48282 states and 70811 transitions. [2018-11-06 19:04:55,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-06 19:04:55,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2018-11-06 19:04:55,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:55,120 INFO L225 Difference]: With dead ends: 48282 [2018-11-06 19:04:55,121 INFO L226 Difference]: Without dead ends: 37689 [2018-11-06 19:04:55,142 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-11-06 19:04:55,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37689 states. [2018-11-06 19:04:55,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37689 to 22623. [2018-11-06 19:04:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22623 states. [2018-11-06 19:04:55,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22623 states to 22623 states and 27521 transitions. [2018-11-06 19:04:55,823 INFO L78 Accepts]: Start accepts. Automaton has 22623 states and 27521 transitions. Word has length 165 [2018-11-06 19:04:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:55,824 INFO L480 AbstractCegarLoop]: Abstraction has 22623 states and 27521 transitions. [2018-11-06 19:04:55,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:04:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 22623 states and 27521 transitions. [2018-11-06 19:04:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2018-11-06 19:04:55,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:55,836 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 19:04:55,836 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:55,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:55,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1816142010, now seen corresponding path program 1 times [2018-11-06 19:04:55,837 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:55,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:55,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:55,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:55,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:56,205 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-11-06 19:04:56,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:04:56,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:04:56,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:04:56,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:04:56,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:04:56,208 INFO L87 Difference]: Start difference. First operand 22623 states and 27521 transitions. Second operand 3 states. [2018-11-06 19:05:00,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:00,459 INFO L93 Difference]: Finished difference Result 51260 states and 63098 transitions. [2018-11-06 19:05:00,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:05:00,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 399 [2018-11-06 19:05:00,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:00,520 INFO L225 Difference]: With dead ends: 51260 [2018-11-06 19:05:00,521 INFO L226 Difference]: Without dead ends: 29391 [2018-11-06 19:05:00,552 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 19:05:00,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29391 states. [2018-11-06 19:05:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29391 to 28639. [2018-11-06 19:05:00,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28639 states. [2018-11-06 19:05:00,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28639 states to 28639 states and 34132 transitions. [2018-11-06 19:05:00,933 INFO L78 Accepts]: Start accepts. Automaton has 28639 states and 34132 transitions. Word has length 399 [2018-11-06 19:05:00,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:00,934 INFO L480 AbstractCegarLoop]: Abstraction has 28639 states and 34132 transitions. [2018-11-06 19:05:00,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:05:00,934 INFO L276 IsEmpty]: Start isEmpty. Operand 28639 states and 34132 transitions. [2018-11-06 19:05:00,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2018-11-06 19:05:00,946 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:00,947 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 19:05:00,947 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:00,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:00,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1157546942, now seen corresponding path program 1 times [2018-11-06 19:05:00,948 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:00,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:00,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:00,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:00,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-11-06 19:05:01,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:01,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:05:01,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:05:01,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:05:01,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:05:01,457 INFO L87 Difference]: Start difference. First operand 28639 states and 34132 transitions. Second operand 4 states. [2018-11-06 19:05:09,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:09,187 INFO L93 Difference]: Finished difference Result 99388 states and 118651 transitions. [2018-11-06 19:05:09,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:05:09,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 405 [2018-11-06 19:05:09,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:09,300 INFO L225 Difference]: With dead ends: 99388 [2018-11-06 19:05:09,300 INFO L226 Difference]: Without dead ends: 71503 [2018-11-06 19:05:09,345 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 19:05:09,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71503 states. [2018-11-06 19:05:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71503 to 70751. [2018-11-06 19:05:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70751 states. [2018-11-06 19:05:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70751 states to 70751 states and 79771 transitions. [2018-11-06 19:05:10,160 INFO L78 Accepts]: Start accepts. Automaton has 70751 states and 79771 transitions. Word has length 405 [2018-11-06 19:05:10,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:10,161 INFO L480 AbstractCegarLoop]: Abstraction has 70751 states and 79771 transitions. [2018-11-06 19:05:10,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:05:10,161 INFO L276 IsEmpty]: Start isEmpty. Operand 70751 states and 79771 transitions. [2018-11-06 19:05:10,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-11-06 19:05:10,189 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:10,189 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:05:10,190 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:10,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash -480905004, now seen corresponding path program 1 times [2018-11-06 19:05:10,190 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:10,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:10,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:10,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:10,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-06 19:05:10,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:10,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:05:10,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:05:10,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:05:10,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:05:10,566 INFO L87 Difference]: Start difference. First operand 70751 states and 79771 transitions. Second operand 3 states. [2018-11-06 19:05:15,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:15,506 INFO L93 Difference]: Finished difference Result 182108 states and 206865 transitions. [2018-11-06 19:05:15,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:05:15,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 452 [2018-11-06 19:05:15,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:15,650 INFO L225 Difference]: With dead ends: 182108 [2018-11-06 19:05:15,650 INFO L226 Difference]: Without dead ends: 112111 [2018-11-06 19:05:15,707 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 19:05:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112111 states. [2018-11-06 19:05:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112111 to 109855. [2018-11-06 19:05:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109855 states. [2018-11-06 19:05:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109855 states to 109855 states and 121866 transitions. [2018-11-06 19:05:16,850 INFO L78 Accepts]: Start accepts. Automaton has 109855 states and 121866 transitions. Word has length 452 [2018-11-06 19:05:16,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:16,851 INFO L480 AbstractCegarLoop]: Abstraction has 109855 states and 121866 transitions. [2018-11-06 19:05:16,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:05:16,851 INFO L276 IsEmpty]: Start isEmpty. Operand 109855 states and 121866 transitions. [2018-11-06 19:05:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2018-11-06 19:05:16,883 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:16,883 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:05:16,884 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:16,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1812629239, now seen corresponding path program 1 times [2018-11-06 19:05:16,884 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:16,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:16,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:16,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:16,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2018-11-06 19:05:17,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:17,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 19:05:17,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:05:17,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:05:17,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:05:17,964 INFO L87 Difference]: Start difference. First operand 109855 states and 121866 transitions. Second operand 6 states. [2018-11-06 19:05:24,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:24,834 INFO L93 Difference]: Finished difference Result 219499 states and 243516 transitions. [2018-11-06 19:05:24,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:05:24,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 489 [2018-11-06 19:05:24,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:24,934 INFO L225 Difference]: With dead ends: 219499 [2018-11-06 19:05:24,935 INFO L226 Difference]: Without dead ends: 92319 [2018-11-06 19:05:25,011 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:05:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92319 states. [2018-11-06 19:05:25,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92319 to 87264. [2018-11-06 19:05:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87264 states. [2018-11-06 19:05:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87264 states to 87264 states and 92509 transitions. [2018-11-06 19:05:25,811 INFO L78 Accepts]: Start accepts. Automaton has 87264 states and 92509 transitions. Word has length 489 [2018-11-06 19:05:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:25,811 INFO L480 AbstractCegarLoop]: Abstraction has 87264 states and 92509 transitions. [2018-11-06 19:05:25,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:05:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 87264 states and 92509 transitions. [2018-11-06 19:05:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2018-11-06 19:05:25,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:25,829 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 19:05:25,829 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:25,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:25,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1826194161, now seen corresponding path program 1 times [2018-11-06 19:05:25,829 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:25,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:25,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:25,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:25,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2018-11-06 19:05:26,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:26,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:05:26,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:05:26,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:05:26,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:05:26,235 INFO L87 Difference]: Start difference. First operand 87264 states and 92509 transitions. Second operand 3 states. [2018-11-06 19:05:31,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:31,299 INFO L93 Difference]: Finished difference Result 175278 states and 185963 transitions. [2018-11-06 19:05:31,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:05:31,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 506 [2018-11-06 19:05:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:31,404 INFO L225 Difference]: With dead ends: 175278 [2018-11-06 19:05:31,405 INFO L226 Difference]: Without dead ends: 88768 [2018-11-06 19:05:31,455 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 19:05:31,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88768 states. [2018-11-06 19:05:32,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88768 to 84256. [2018-11-06 19:05:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84256 states. [2018-11-06 19:05:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84256 states to 84256 states and 88737 transitions. [2018-11-06 19:05:32,111 INFO L78 Accepts]: Start accepts. Automaton has 84256 states and 88737 transitions. Word has length 506 [2018-11-06 19:05:32,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:32,112 INFO L480 AbstractCegarLoop]: Abstraction has 84256 states and 88737 transitions. [2018-11-06 19:05:32,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:05:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 84256 states and 88737 transitions. [2018-11-06 19:05:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2018-11-06 19:05:32,132 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:32,132 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-11-06 19:05:32,132 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:32,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:32,133 INFO L82 PathProgramCache]: Analyzing trace with hash 259889551, now seen corresponding path program 1 times [2018-11-06 19:05:32,133 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:32,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:32,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:32,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:32,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-11-06 19:05:32,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:32,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:05:32,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:05:32,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:05:32,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:05:32,584 INFO L87 Difference]: Start difference. First operand 84256 states and 88737 transitions. Second operand 4 states. [2018-11-06 19:05:39,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:39,339 INFO L93 Difference]: Finished difference Result 179790 states and 190361 transitions. [2018-11-06 19:05:39,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:05:39,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 586 [2018-11-06 19:05:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:39,438 INFO L225 Difference]: With dead ends: 179790 [2018-11-06 19:05:39,438 INFO L226 Difference]: Without dead ends: 96288 [2018-11-06 19:05:39,480 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:05:39,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96288 states. [2018-11-06 19:05:40,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96288 to 92528. [2018-11-06 19:05:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92528 states. [2018-11-06 19:05:40,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92528 states to 92528 states and 97141 transitions. [2018-11-06 19:05:40,388 INFO L78 Accepts]: Start accepts. Automaton has 92528 states and 97141 transitions. Word has length 586 [2018-11-06 19:05:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:40,389 INFO L480 AbstractCegarLoop]: Abstraction has 92528 states and 97141 transitions. [2018-11-06 19:05:40,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:05:40,389 INFO L276 IsEmpty]: Start isEmpty. Operand 92528 states and 97141 transitions. [2018-11-06 19:05:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2018-11-06 19:05:40,417 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:40,417 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:05:40,417 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:40,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash -353722807, now seen corresponding path program 1 times [2018-11-06 19:05:40,418 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:40,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:40,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:40,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:40,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:40,833 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-11-06 19:05:40,997 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-06 19:05:40,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:40,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:05:40,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:05:40,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:05:40,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:05:40,999 INFO L87 Difference]: Start difference. First operand 92528 states and 97141 transitions. Second operand 4 states. [2018-11-06 19:05:45,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:45,749 INFO L93 Difference]: Finished difference Result 196334 states and 206078 transitions. [2018-11-06 19:05:45,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:05:45,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 661 [2018-11-06 19:05:45,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:45,864 INFO L225 Difference]: With dead ends: 196334 [2018-11-06 19:05:45,864 INFO L226 Difference]: Without dead ends: 104560 [2018-11-06 19:05:45,909 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 19:05:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104560 states. [2018-11-06 19:05:46,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104560 to 99296. [2018-11-06 19:05:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99296 states. [2018-11-06 19:05:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99296 states to 99296 states and 103930 transitions. [2018-11-06 19:05:46,870 INFO L78 Accepts]: Start accepts. Automaton has 99296 states and 103930 transitions. Word has length 661 [2018-11-06 19:05:46,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:46,870 INFO L480 AbstractCegarLoop]: Abstraction has 99296 states and 103930 transitions. [2018-11-06 19:05:46,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:05:46,870 INFO L276 IsEmpty]: Start isEmpty. Operand 99296 states and 103930 transitions. [2018-11-06 19:05:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2018-11-06 19:05:46,893 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:46,894 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 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] [2018-11-06 19:05:46,894 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:46,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:46,894 INFO L82 PathProgramCache]: Analyzing trace with hash 951502035, now seen corresponding path program 1 times [2018-11-06 19:05:46,895 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:46,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:46,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:46,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:46,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 593 proven. 262 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-06 19:05:48,288 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:05:48,288 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 19:05:48,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:48,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:05:49,056 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 517 DAG size of output: 24 [2018-11-06 19:05:52,069 WARN L179 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 262 DAG size of output: 53 [2018-11-06 19:05:53,422 WARN L179 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-11-06 19:05:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 738 proven. 117 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-06 19:05:56,190 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:05:56,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2018-11-06 19:05:56,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-06 19:05:56,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-06 19:05:56,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-06 19:05:56,192 INFO L87 Difference]: Start difference. First operand 99296 states and 103930 transitions. Second operand 12 states. [2018-11-06 19:06:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:06:35,705 INFO L93 Difference]: Finished difference Result 266292 states and 278673 transitions. [2018-11-06 19:06:35,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-06 19:06:35,705 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 665 [2018-11-06 19:06:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:06:35,910 INFO L225 Difference]: With dead ends: 266292 [2018-11-06 19:06:35,911 INFO L226 Difference]: Without dead ends: 163983 [2018-11-06 19:06:35,977 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2018-11-06 19:06:36,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163983 states. [2018-11-06 19:06:37,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163983 to 153441. [2018-11-06 19:06:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153441 states. [2018-11-06 19:06:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153441 states to 153441 states and 159194 transitions. [2018-11-06 19:06:37,477 INFO L78 Accepts]: Start accepts. Automaton has 153441 states and 159194 transitions. Word has length 665 [2018-11-06 19:06:37,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:06:37,478 INFO L480 AbstractCegarLoop]: Abstraction has 153441 states and 159194 transitions. [2018-11-06 19:06:37,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-06 19:06:37,478 INFO L276 IsEmpty]: Start isEmpty. Operand 153441 states and 159194 transitions. [2018-11-06 19:06:37,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2018-11-06 19:06:37,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:06:37,499 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 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] [2018-11-06 19:06:37,499 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:06:37,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:06:37,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1217374838, now seen corresponding path program 1 times [2018-11-06 19:06:37,500 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:06:37,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:06:37,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:06:37,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:06:37,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:06:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:06:38,311 WARN L179 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-11-06 19:06:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 606 proven. 143 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-06 19:06:39,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:06:39,392 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 19:06:39,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:06:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:06:39,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:06:40,129 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-11-06 19:06:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 694 proven. 55 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-06 19:06:40,972 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:06:40,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2018-11-06 19:06:40,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 19:06:40,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 19:06:40,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:06:40,974 INFO L87 Difference]: Start difference. First operand 153441 states and 159194 transitions. Second operand 10 states. [2018-11-06 19:07:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:07:04,367 INFO L93 Difference]: Finished difference Result 323424 states and 335377 transitions. [2018-11-06 19:07:04,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-06 19:07:04,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 692 [2018-11-06 19:07:04,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:07:04,570 INFO L225 Difference]: With dead ends: 323424 [2018-11-06 19:07:04,570 INFO L226 Difference]: Without dead ends: 157181 [2018-11-06 19:07:04,651 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 689 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-11-06 19:07:04,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157181 states. [2018-11-06 19:07:06,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157181 to 151165. [2018-11-06 19:07:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151165 states. [2018-11-06 19:07:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151165 states to 151165 states and 156384 transitions. [2018-11-06 19:07:06,889 INFO L78 Accepts]: Start accepts. Automaton has 151165 states and 156384 transitions. Word has length 692 [2018-11-06 19:07:06,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:07:06,890 INFO L480 AbstractCegarLoop]: Abstraction has 151165 states and 156384 transitions. [2018-11-06 19:07:06,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 19:07:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 151165 states and 156384 transitions. [2018-11-06 19:07:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2018-11-06 19:07:06,913 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:07:06,913 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:07:06,914 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:07:06,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:07:06,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1240618188, now seen corresponding path program 1 times [2018-11-06 19:07:06,915 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:07:06,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:07:06,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:07:06,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:07:06,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:07:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:07:07,380 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-06 19:07:07,899 WARN L179 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-11-06 19:07:08,441 WARN L179 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2018-11-06 19:07:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 824 proven. 8 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2018-11-06 19:07:09,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:07:09,119 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 19:07:09,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:07:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:07:09,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:07:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 811 proven. 110 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-11-06 19:07:10,681 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:07:10,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-11-06 19:07:10,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:07:10,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:07:10,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:07:10,683 INFO L87 Difference]: Start difference. First operand 151165 states and 156384 transitions. Second operand 8 states. [2018-11-06 19:07:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:07:24,654 INFO L93 Difference]: Finished difference Result 303832 states and 314303 transitions. [2018-11-06 19:07:24,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 19:07:24,657 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 744 [2018-11-06 19:07:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:07:24,839 INFO L225 Difference]: With dead ends: 303832 [2018-11-06 19:07:24,839 INFO L226 Difference]: Without dead ends: 153421 [2018-11-06 19:07:24,907 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 742 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-11-06 19:07:25,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153421 states. [2018-11-06 19:07:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153421 to 148157. [2018-11-06 19:07:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148157 states. [2018-11-06 19:07:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148157 states to 148157 states and 151910 transitions. [2018-11-06 19:07:26,277 INFO L78 Accepts]: Start accepts. Automaton has 148157 states and 151910 transitions. Word has length 744 [2018-11-06 19:07:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:07:26,277 INFO L480 AbstractCegarLoop]: Abstraction has 148157 states and 151910 transitions. [2018-11-06 19:07:26,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 19:07:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand 148157 states and 151910 transitions. [2018-11-06 19:07:26,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2018-11-06 19:07:26,296 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:07:26,297 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:07:26,297 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:07:26,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:07:26,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1587261424, now seen corresponding path program 1 times [2018-11-06 19:07:26,298 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:07:26,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:07:26,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:07:26,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:07:26,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:07:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:07:26,755 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-06 19:07:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 1038 proven. 8 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2018-11-06 19:07:28,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:07:28,217 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:07:28,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:07:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:07:28,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:07:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 960 proven. 110 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-06 19:07:29,883 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:07:29,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2018-11-06 19:07:29,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-06 19:07:29,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-06 19:07:29,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-06 19:07:29,885 INFO L87 Difference]: Start difference. First operand 148157 states and 151910 transitions. Second operand 11 states. [2018-11-06 19:07:30,105 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 18 Received shutdown request... [2018-11-06 19:07:30,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:07:30,496 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:07:30,503 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:07:30,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:07:30 BoogieIcfgContainer [2018-11-06 19:07:30,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:07:30,505 INFO L168 Benchmark]: Toolchain (without parser) took 227145.18 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -960.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-06 19:07:30,506 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 19:07:30,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2204.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:30,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 621.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -996.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:30,508 INFO L168 Benchmark]: Boogie Preprocessor took 360.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:30,509 INFO L168 Benchmark]: RCFGBuilder took 8488.22 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 210.2 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -142.3 MB). Peak memory consumption was 612.6 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:30,510 INFO L168 Benchmark]: TraceAbstraction took 215465.80 ms. Allocated memory was 2.6 GB in the beginning and 3.8 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -57.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-06 19:07:30,515 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 2204.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 621.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -996.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 360.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8488.22 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 210.2 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -142.3 MB). Peak memory consumption was 612.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215465.80 ms. Allocated memory was 2.6 GB in the beginning and 3.8 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -57.3 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: 54]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 54). Cancelled while BasicCegarLoop was constructing difference of abstraction (148157states) and FLOYD_HOARE automaton (currently 3 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (36 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 215.3s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 176.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9894 SDtfs, 57519 SDslu, 1615 SDs, 0 SdLazy, 106234 SolverSat, 15094 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 138.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3145 GetRequests, 3042 SyntacticMatches, 17 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153441occurred in iteration=12, 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: 11.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 59239 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 19.9s InterpolantComputationTime, 9761 NumberOfCodeBlocks, 9761 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 9741 ConstructedInterpolants, 292 QuantifiedInterpolants, 33468481 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3760 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 12635/13453 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown