java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:25:24,082 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:25:24,084 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:25:24,096 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:25:24,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:25:24,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:25:24,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:25:24,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:25:24,107 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:25:24,108 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:25:24,109 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:25:24,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:25:24,111 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:25:24,113 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:25:24,114 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:25:24,115 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:25:24,120 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:25:24,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:25:24,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:25:24,131 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:25:24,134 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:25:24,135 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:25:24,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:25:24,139 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:25:24,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:25:24,140 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:25:24,141 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:25:24,146 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:25:24,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:25:24,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:25:24,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:25:24,150 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 16:25:24,153 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 16:25:24,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:25:24,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:25:24,183 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:25:24,184 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:25:24,184 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:25:24,184 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:25:24,186 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:25:24,186 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:25:24,186 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:25:24,186 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:25:24,187 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:25:24,187 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:25:24,187 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:25:24,188 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:25:24,188 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:25:24,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:25:24,188 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:25:24,189 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:25:24,189 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:25:24,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:25:24,189 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:25:24,189 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:25:24,190 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:25:24,191 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:25:24,191 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:25:24,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:25:24,192 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:25:24,192 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:25:24,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:25:24,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:25:24,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:25:24,256 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:25:24,257 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:25:24,258 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label50_true-unreach-call.c [2018-10-24 16:25:24,325 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/187956232/514cf9f2fff74122a7b9763a3cb027a0/FLAG265865e13 [2018-10-24 16:25:25,209 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:25:25,210 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label50_true-unreach-call.c [2018-10-24 16:25:25,248 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/187956232/514cf9f2fff74122a7b9763a3cb027a0/FLAG265865e13 [2018-10-24 16:25:25,270 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/187956232/514cf9f2fff74122a7b9763a3cb027a0 [2018-10-24 16:25:25,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:25:25,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:25:25,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:25:25,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:25:25,294 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:25:25,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:25:25" (1/1) ... [2018-10-24 16:25:25,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa98528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:25, skipping insertion in model container [2018-10-24 16:25:25,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:25:25" (1/1) ... [2018-10-24 16:25:25,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:25:25,498 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:25:27,055 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:25:27,060 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:25:27,702 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:25:27,737 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:25:27,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27 WrapperNode [2018-10-24 16:25:27,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:25:27,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:25:27,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:25:27,739 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:25:27,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:27,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:28,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:25:28,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:25:28,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:25:28,560 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:25:28,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:28,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:28,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:28,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:28,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:28,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:29,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... [2018-10-24 16:25:29,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:25:29,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:25:29,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:25:29,099 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:25:29,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:25:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:25:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:25:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:25:42,565 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:25:42,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:25:42 BoogieIcfgContainer [2018-10-24 16:25:42,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:25:42,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:25:42,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:25:42,571 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:25:42,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:25:25" (1/3) ... [2018-10-24 16:25:42,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370b9554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:25:42, skipping insertion in model container [2018-10-24 16:25:42,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:25:27" (2/3) ... [2018-10-24 16:25:42,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370b9554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:25:42, skipping insertion in model container [2018-10-24 16:25:42,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:25:42" (3/3) ... [2018-10-24 16:25:42,576 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label50_true-unreach-call.c [2018-10-24 16:25:42,586 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:25:42,597 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:25:42,615 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:25:42,664 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:25:42,665 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:25:42,665 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:25:42,666 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:25:42,666 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:25:42,666 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:25:42,666 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:25:42,666 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:25:42,666 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:25:42,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 16:25:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-24 16:25:42,716 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:42,717 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:25:42,720 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:42,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:42,727 INFO L82 PathProgramCache]: Analyzing trace with hash 265969354, now seen corresponding path program 1 times [2018-10-24 16:25:42,730 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:42,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:42,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:42,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:42,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:25:43,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:25:43,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:25:43,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:25:43,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:25:43,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:25:43,291 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 16:26:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:00,004 INFO L93 Difference]: Finished difference Result 4033 states and 7562 transitions. [2018-10-24 16:26:00,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:00,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-10-24 16:26:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:00,053 INFO L225 Difference]: With dead ends: 4033 [2018-10-24 16:26:00,053 INFO L226 Difference]: Without dead ends: 2927 [2018-10-24 16:26:00,064 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:00,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2018-10-24 16:26:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2797. [2018-10-24 16:26:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2797 states. [2018-10-24 16:26:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4999 transitions. [2018-10-24 16:26:00,236 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4999 transitions. Word has length 63 [2018-10-24 16:26:00,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:00,237 INFO L481 AbstractCegarLoop]: Abstraction has 2797 states and 4999 transitions. [2018-10-24 16:26:00,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:00,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4999 transitions. [2018-10-24 16:26:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 16:26:00,244 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:00,244 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:26:00,245 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:00,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:00,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1834159543, now seen corresponding path program 1 times [2018-10-24 16:26:00,245 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:00,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:00,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:00,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:00,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:26:00,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:00,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:26:00,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:26:00,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:26:00,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:00,466 INFO L87 Difference]: Start difference. First operand 2797 states and 4999 transitions. Second operand 4 states. [2018-10-24 16:26:17,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:17,671 INFO L93 Difference]: Finished difference Result 10366 states and 18928 transitions. [2018-10-24 16:26:17,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:17,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-10-24 16:26:17,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:17,716 INFO L225 Difference]: With dead ends: 10366 [2018-10-24 16:26:17,717 INFO L226 Difference]: Without dead ends: 7571 [2018-10-24 16:26:17,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:17,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7571 states. [2018-10-24 16:26:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 7548. [2018-10-24 16:26:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7548 states. [2018-10-24 16:26:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 11977 transitions. [2018-10-24 16:26:17,882 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 11977 transitions. Word has length 130 [2018-10-24 16:26:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:17,883 INFO L481 AbstractCegarLoop]: Abstraction has 7548 states and 11977 transitions. [2018-10-24 16:26:17,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:17,885 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 11977 transitions. [2018-10-24 16:26:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-10-24 16:26:17,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:17,895 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:26:17,897 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:17,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:17,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1357792343, now seen corresponding path program 1 times [2018-10-24 16:26:17,897 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:17,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:17,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:17,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:17,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:26:18,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:18,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:26:18,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:26:18,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:26:18,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:18,312 INFO L87 Difference]: Start difference. First operand 7548 states and 11977 transitions. Second operand 4 states. [2018-10-24 16:26:28,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:28,870 INFO L93 Difference]: Finished difference Result 19869 states and 32193 transitions. [2018-10-24 16:26:28,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:28,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2018-10-24 16:26:28,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:28,932 INFO L225 Difference]: With dead ends: 19869 [2018-10-24 16:26:28,933 INFO L226 Difference]: Without dead ends: 12323 [2018-10-24 16:26:28,947 INFO L605 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 [2018-10-24 16:26:28,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12323 states. [2018-10-24 16:26:29,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12323 to 12288. [2018-10-24 16:26:29,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12288 states. [2018-10-24 16:26:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12288 states to 12288 states and 18328 transitions. [2018-10-24 16:26:29,232 INFO L78 Accepts]: Start accepts. Automaton has 12288 states and 18328 transitions. Word has length 160 [2018-10-24 16:26:29,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:29,234 INFO L481 AbstractCegarLoop]: Abstraction has 12288 states and 18328 transitions. [2018-10-24 16:26:29,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12288 states and 18328 transitions. [2018-10-24 16:26:29,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-10-24 16:26:29,243 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:29,243 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:26:29,244 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:29,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:29,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1694419197, now seen corresponding path program 1 times [2018-10-24 16:26:29,245 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:29,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:29,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:29,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:29,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:26:29,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:29,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 16:26:29,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:26:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:26:29,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:26:29,728 INFO L87 Difference]: Start difference. First operand 12288 states and 18328 transitions. Second operand 3 states. [2018-10-24 16:26:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:36,651 INFO L93 Difference]: Finished difference Result 36389 states and 54383 transitions. [2018-10-24 16:26:36,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:26:36,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2018-10-24 16:26:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:36,710 INFO L225 Difference]: With dead ends: 36389 [2018-10-24 16:26:36,710 INFO L226 Difference]: Without dead ends: 24103 [2018-10-24 16:26:36,729 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:26:36,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24103 states. [2018-10-24 16:26:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24103 to 24101. [2018-10-24 16:26:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24101 states. [2018-10-24 16:26:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24101 states to 24101 states and 32392 transitions. [2018-10-24 16:26:37,088 INFO L78 Accepts]: Start accepts. Automaton has 24101 states and 32392 transitions. Word has length 217 [2018-10-24 16:26:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:37,088 INFO L481 AbstractCegarLoop]: Abstraction has 24101 states and 32392 transitions. [2018-10-24 16:26:37,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:26:37,089 INFO L276 IsEmpty]: Start isEmpty. Operand 24101 states and 32392 transitions. [2018-10-24 16:26:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-10-24 16:26:37,098 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:37,098 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:26:37,098 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:37,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:37,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1870594673, now seen corresponding path program 1 times [2018-10-24 16:26:37,099 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:37,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:37,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:37,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:37,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:37,537 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 16:26:38,345 WARN L179 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 16:26:38,448 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:26:38,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:38,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:26:38,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:26:38,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:26:38,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:26:38,450 INFO L87 Difference]: Start difference. First operand 24101 states and 32392 transitions. Second operand 5 states. [2018-10-24 16:26:49,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:49,582 INFO L93 Difference]: Finished difference Result 74199 states and 99162 transitions. [2018-10-24 16:26:49,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:26:49,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 222 [2018-10-24 16:26:49,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:49,680 INFO L225 Difference]: With dead ends: 74199 [2018-10-24 16:26:49,681 INFO L226 Difference]: Without dead ends: 50100 [2018-10-24 16:26:49,717 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:26:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50100 states. [2018-10-24 16:26:50,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50100 to 50099. [2018-10-24 16:26:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50099 states. [2018-10-24 16:26:50,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50099 states to 50099 states and 63121 transitions. [2018-10-24 16:26:50,370 INFO L78 Accepts]: Start accepts. Automaton has 50099 states and 63121 transitions. Word has length 222 [2018-10-24 16:26:50,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:50,371 INFO L481 AbstractCegarLoop]: Abstraction has 50099 states and 63121 transitions. [2018-10-24 16:26:50,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:26:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand 50099 states and 63121 transitions. [2018-10-24 16:26:50,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-10-24 16:26:50,400 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:50,400 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:26:50,401 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:50,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:50,401 INFO L82 PathProgramCache]: Analyzing trace with hash -483667799, now seen corresponding path program 1 times [2018-10-24 16:26:50,402 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:50,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:50,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:50,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:50,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 16:26:51,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:51,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:26:51,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:26:51,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:26:51,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:26:51,281 INFO L87 Difference]: Start difference. First operand 50099 states and 63121 transitions. Second operand 3 states. [2018-10-24 16:26:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:57,166 INFO L93 Difference]: Finished difference Result 100967 states and 127099 transitions. [2018-10-24 16:26:57,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:26:57,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 414 [2018-10-24 16:26:57,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:57,222 INFO L225 Difference]: With dead ends: 100967 [2018-10-24 16:26:57,223 INFO L226 Difference]: Without dead ends: 51658 [2018-10-24 16:26:57,265 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:26:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51658 states. [2018-10-24 16:26:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51658 to 50079. [2018-10-24 16:26:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50079 states. [2018-10-24 16:26:57,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50079 states to 50079 states and 58856 transitions. [2018-10-24 16:26:57,846 INFO L78 Accepts]: Start accepts. Automaton has 50079 states and 58856 transitions. Word has length 414 [2018-10-24 16:26:57,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:57,847 INFO L481 AbstractCegarLoop]: Abstraction has 50079 states and 58856 transitions. [2018-10-24 16:26:57,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:26:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 50079 states and 58856 transitions. [2018-10-24 16:26:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-10-24 16:26:57,878 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:57,879 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:26:57,879 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:57,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:57,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1888480088, now seen corresponding path program 1 times [2018-10-24 16:26:57,881 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:57,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:57,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:57,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:57,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 313 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-10-24 16:26:58,394 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:26:58,394 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:26:58,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:58,560 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:26:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 408 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:26:59,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:26:59,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 16:26:59,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:26:59,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:26:59,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:59,067 INFO L87 Difference]: Start difference. First operand 50079 states and 58856 transitions. Second operand 4 states. [2018-10-24 16:27:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:27:12,808 INFO L93 Difference]: Finished difference Result 190030 states and 223875 transitions. [2018-10-24 16:27:12,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:27:12,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 432 [2018-10-24 16:27:12,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:27:13,036 INFO L225 Difference]: With dead ends: 190030 [2018-10-24 16:27:13,036 INFO L226 Difference]: Without dead ends: 135991 [2018-10-24 16:27:13,100 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:27:13,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135991 states. [2018-10-24 16:27:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135991 to 93397. [2018-10-24 16:27:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93397 states. [2018-10-24 16:27:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93397 states to 93397 states and 105573 transitions. [2018-10-24 16:27:15,162 INFO L78 Accepts]: Start accepts. Automaton has 93397 states and 105573 transitions. Word has length 432 [2018-10-24 16:27:15,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:27:15,163 INFO L481 AbstractCegarLoop]: Abstraction has 93397 states and 105573 transitions. [2018-10-24 16:27:15,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:27:15,163 INFO L276 IsEmpty]: Start isEmpty. Operand 93397 states and 105573 transitions. [2018-10-24 16:27:15,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2018-10-24 16:27:15,206 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:27:15,207 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:27:15,207 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:27:15,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:27:15,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1856328005, now seen corresponding path program 1 times [2018-10-24 16:27:15,208 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:27:15,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:27:15,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:15,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:15,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2018-10-24 16:27:15,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:27:15,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:27:15,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:27:15,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:27:15,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:27:15,887 INFO L87 Difference]: Start difference. First operand 93397 states and 105573 transitions. Second operand 5 states. [2018-10-24 16:27:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:27:35,230 INFO L93 Difference]: Finished difference Result 263511 states and 298245 transitions. [2018-10-24 16:27:35,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:27:35,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 525 [2018-10-24 16:27:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:27:35,458 INFO L225 Difference]: With dead ends: 263511 [2018-10-24 16:27:35,458 INFO L226 Difference]: Without dead ends: 170904 [2018-10-24 16:27:35,531 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:27:35,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170904 states. [2018-10-24 16:27:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170904 to 161250. [2018-10-24 16:27:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161250 states. [2018-10-24 16:27:37,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161250 states to 161250 states and 179906 transitions. [2018-10-24 16:27:37,170 INFO L78 Accepts]: Start accepts. Automaton has 161250 states and 179906 transitions. Word has length 525 [2018-10-24 16:27:37,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:27:37,171 INFO L481 AbstractCegarLoop]: Abstraction has 161250 states and 179906 transitions. [2018-10-24 16:27:37,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:27:37,171 INFO L276 IsEmpty]: Start isEmpty. Operand 161250 states and 179906 transitions. [2018-10-24 16:27:37,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2018-10-24 16:27:37,209 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:27:37,210 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:27:37,210 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:27:37,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:27:37,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1272140782, now seen corresponding path program 1 times [2018-10-24 16:27:37,211 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:27:37,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:27:37,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:37,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:37,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 632 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2018-10-24 16:27:38,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:27:38,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:27:38,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:27:38,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:27:38,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:27:38,673 INFO L87 Difference]: Start difference. First operand 161250 states and 179906 transitions. Second operand 4 states. [2018-10-24 16:27:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:27:52,806 INFO L93 Difference]: Finished difference Result 322519 states and 359866 transitions. [2018-10-24 16:27:52,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:27:52,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 556 [2018-10-24 16:27:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:27:53,016 INFO L225 Difference]: With dead ends: 322519 [2018-10-24 16:27:53,017 INFO L226 Difference]: Without dead ends: 159676 [2018-10-24 16:27:53,120 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:27:53,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159676 states. [2018-10-24 16:27:55,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159676 to 158078. [2018-10-24 16:27:55,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158078 states. [2018-10-24 16:27:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158078 states to 158078 states and 172646 transitions. [2018-10-24 16:27:55,566 INFO L78 Accepts]: Start accepts. Automaton has 158078 states and 172646 transitions. Word has length 556 [2018-10-24 16:27:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:27:55,567 INFO L481 AbstractCegarLoop]: Abstraction has 158078 states and 172646 transitions. [2018-10-24 16:27:55,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:27:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 158078 states and 172646 transitions. [2018-10-24 16:27:55,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2018-10-24 16:27:55,586 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:27:55,586 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:27:55,586 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:27:55,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:27:55,587 INFO L82 PathProgramCache]: Analyzing trace with hash 144221470, now seen corresponding path program 1 times [2018-10-24 16:27:55,587 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:27:55,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:27:55,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:55,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:55,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:27:56,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:27:56,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:27:56,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:27:56,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:27:56,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:27:56,218 INFO L87 Difference]: Start difference. First operand 158078 states and 172646 transitions. Second operand 4 states. [2018-10-24 16:28:07,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:28:07,454 INFO L93 Difference]: Finished difference Result 327187 states and 356840 transitions. [2018-10-24 16:28:07,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:28:07,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 585 [2018-10-24 16:28:07,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:28:07,638 INFO L225 Difference]: With dead ends: 327187 [2018-10-24 16:28:07,638 INFO L226 Difference]: Without dead ends: 155663 [2018-10-24 16:28:07,726 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:28:07,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155663 states. [2018-10-24 16:28:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155663 to 150141. [2018-10-24 16:28:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150141 states. [2018-10-24 16:28:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150141 states to 150141 states and 162584 transitions. [2018-10-24 16:28:08,999 INFO L78 Accepts]: Start accepts. Automaton has 150141 states and 162584 transitions. Word has length 585 [2018-10-24 16:28:09,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:28:09,000 INFO L481 AbstractCegarLoop]: Abstraction has 150141 states and 162584 transitions. [2018-10-24 16:28:09,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:28:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 150141 states and 162584 transitions. [2018-10-24 16:28:09,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2018-10-24 16:28:09,013 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:28:09,014 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:28:09,014 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:28:09,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:28:09,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1417238191, now seen corresponding path program 1 times [2018-10-24 16:28:09,015 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:28:09,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:28:09,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:09,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:09,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2018-10-24 16:28:10,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:28:10,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:28:10,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:28:10,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:28:10,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:28:10,637 INFO L87 Difference]: Start difference. First operand 150141 states and 162584 transitions. Second operand 3 states. [2018-10-24 16:28:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:28:17,411 INFO L93 Difference]: Finished difference Result 299490 states and 324373 transitions. [2018-10-24 16:28:17,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:28:17,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 631 [2018-10-24 16:28:17,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:28:17,615 INFO L225 Difference]: With dead ends: 299490 [2018-10-24 16:28:17,616 INFO L226 Difference]: Without dead ends: 150139 [2018-10-24 16:28:17,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 7 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:28:17,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150139 states. [2018-10-24 16:28:18,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150139 to 150138. [2018-10-24 16:28:18,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150138 states. [2018-10-24 16:28:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150138 states to 150138 states and 159890 transitions. [2018-10-24 16:28:19,040 INFO L78 Accepts]: Start accepts. Automaton has 150138 states and 159890 transitions. Word has length 631 [2018-10-24 16:28:19,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:28:19,041 INFO L481 AbstractCegarLoop]: Abstraction has 150138 states and 159890 transitions. [2018-10-24 16:28:19,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:28:19,041 INFO L276 IsEmpty]: Start isEmpty. Operand 150138 states and 159890 transitions. [2018-10-24 16:28:19,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2018-10-24 16:28:19,059 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:28:19,059 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:28:19,060 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:28:19,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:28:19,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1058101010, now seen corresponding path program 1 times [2018-10-24 16:28:19,060 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:28:19,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:28:19,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:19,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:19,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 887 proven. 85 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 16:28:24,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:28:24,034 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:28:24,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:24,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:28:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 751 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2018-10-24 16:28:25,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:28:25,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-10-24 16:28:25,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 16:28:25,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 16:28:25,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-24 16:28:25,141 INFO L87 Difference]: Start difference. First operand 150138 states and 159890 transitions. Second operand 10 states. Received shutdown request... [2018-10-24 16:29:08,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 16:29:08,253 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:29:08,259 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:29:08,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:29:08 BoogieIcfgContainer [2018-10-24 16:29:08,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:29:08,261 INFO L168 Benchmark]: Toolchain (without parser) took 222977.16 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.3 GB in the beginning and 2.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 16:29:08,262 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 16:29:08,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2449.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.1 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:29:08,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 820.91 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 765.5 MB). Free memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: -959.1 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:29:08,265 INFO L168 Benchmark]: Boogie Preprocessor took 539.14 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:29:08,265 INFO L168 Benchmark]: RCFGBuilder took 13466.74 ms. Allocated memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: 267.9 MB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -13.9 MB). Peak memory consumption was 617.6 MB. Max. memory is 7.1 GB. [2018-10-24 16:29:08,266 INFO L168 Benchmark]: TraceAbstraction took 205692.78 ms. Allocated memory was 2.5 GB in the beginning and 4.4 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -612.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 16:29:08,272 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2449.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.1 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 820.91 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 765.5 MB). Free memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: -959.1 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 539.14 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13466.74 ms. Allocated memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: 267.9 MB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -13.9 MB). Peak memory consumption was 617.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205692.78 ms. Allocated memory was 2.5 GB in the beginning and 4.4 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -612.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). Cancelled while BasicCegarLoop was constructing difference of abstraction (150138states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (245330 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 205.6s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 178.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10275 SDtfs, 39462 SDslu, 3483 SDs, 0 SdLazy, 79677 SolverSat, 15741 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 147.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1165 GetRequests, 1114 SyntacticMatches, 11 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161250occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 61139 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 5679 NumberOfCodeBlocks, 5679 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5665 ConstructedInterpolants, 90 QuantifiedInterpolants, 7136959 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1400 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 7491/7580 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown