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_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:20:44,201 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:20:44,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:20:44,219 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:20:44,219 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:20:44,222 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:20:44,225 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:20:44,227 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:20:44,229 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:20:44,230 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:20:44,231 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:20:44,231 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:20:44,232 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:20:44,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:20:44,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:20:44,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:20:44,236 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:20:44,237 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:20:44,239 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:20:44,243 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:20:44,244 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:20:44,246 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:20:44,253 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:20:44,253 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:20:44,254 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:20:44,254 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:20:44,255 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:20:44,256 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:20:44,257 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:20:44,258 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:20:44,258 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:20:44,259 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 16:20:44,259 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 16:20:44,259 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 16:20:44,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 16:20:44,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 16:20:44,262 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 16:20:44,285 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:20:44,287 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:20:44,288 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:20:44,288 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:20:44,289 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:20:44,290 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:20:44,290 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:20:44,290 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:20:44,290 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:20:44,290 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:20:44,291 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:20:44,291 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:20:44,291 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:20:44,291 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:20:44,291 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:20:44,293 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:20:44,293 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:20:44,293 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:20:44,294 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:20:44,294 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:20:44,294 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:20:44,294 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:20:44,294 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:20:44,295 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:20:44,295 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:20:44,295 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:20:44,295 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:20:44,295 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:20:44,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:20:44,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:20:44,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:20:44,386 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:20:44,387 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:20:44,387 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label17_true-unreach-call.c [2018-10-24 16:20:44,440 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d9baec4d6/7d9263f7f8d04a07a41058d06b5d8e05/FLAGdb9835c10 [2018-10-24 16:20:45,250 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:20:45,251 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label17_true-unreach-call.c [2018-10-24 16:20:45,284 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d9baec4d6/7d9263f7f8d04a07a41058d06b5d8e05/FLAGdb9835c10 [2018-10-24 16:20:45,300 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d9baec4d6/7d9263f7f8d04a07a41058d06b5d8e05 [2018-10-24 16:20:45,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:20:45,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:20:45,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:20:45,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:20:45,318 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:20:45,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:20:45" (1/1) ... [2018-10-24 16:20:45,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309cd1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:45, skipping insertion in model container [2018-10-24 16:20:45,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:20:45" (1/1) ... [2018-10-24 16:20:45,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:20:45,519 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:20:46,874 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:20:46,879 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:20:47,619 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:20:47,656 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:20:47,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47 WrapperNode [2018-10-24 16:20:47,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:20:47,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:20:47,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:20:47,659 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:20:47,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:47,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:48,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:20:48,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:20:48,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:20:48,552 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:20:48,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:48,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:48,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:48,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:48,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:48,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:49,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (1/1) ... [2018-10-24 16:20:49,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:20:49,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:20:49,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:20:49,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:20:49,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (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 16:20:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:20:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:20:49,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:21:02,108 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:21:02,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:21:02 BoogieIcfgContainer [2018-10-24 16:21:02,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:21:02,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:21:02,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:21:02,114 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:21:02,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:20:45" (1/3) ... [2018-10-24 16:21:02,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5094a9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:21:02, skipping insertion in model container [2018-10-24 16:21:02,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:47" (2/3) ... [2018-10-24 16:21:02,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5094a9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:21:02, skipping insertion in model container [2018-10-24 16:21:02,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:21:02" (3/3) ... [2018-10-24 16:21:02,117 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label17_true-unreach-call.c [2018-10-24 16:21:02,127 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:21:02,136 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:21:02,153 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:21:02,199 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:21:02,200 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:21:02,200 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:21:02,200 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:21:02,200 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:21:02,201 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:21:02,201 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:21:02,201 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:21:02,201 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:21:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 16:21:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-24 16:21:02,246 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:21:02,247 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] [2018-10-24 16:21:02,249 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:21:02,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:21:02,255 INFO L82 PathProgramCache]: Analyzing trace with hash 646480794, now seen corresponding path program 1 times [2018-10-24 16:21:02,257 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:21:02,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:21:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:02,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:21:02,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:21:02,714 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 16:21:02,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:21:02,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:21:02,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:21:02,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:21:02,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:21:02,746 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 16:21:20,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:21:20,368 INFO L93 Difference]: Finished difference Result 3991 states and 7504 transitions. [2018-10-24 16:21:20,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:21:20,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-24 16:21:20,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:21:20,417 INFO L225 Difference]: With dead ends: 3991 [2018-10-24 16:21:20,417 INFO L226 Difference]: Without dead ends: 2885 [2018-10-24 16:21:20,426 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 16:21:20,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2018-10-24 16:21:20,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1946. [2018-10-24 16:21:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2018-10-24 16:21:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 3412 transitions. [2018-10-24 16:21:20,620 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 3412 transitions. Word has length 34 [2018-10-24 16:21:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:21:20,620 INFO L481 AbstractCegarLoop]: Abstraction has 1946 states and 3412 transitions. [2018-10-24 16:21:20,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:21:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 3412 transitions. [2018-10-24 16:21:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 16:21:20,626 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:21:20,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:21:20,628 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:21:20,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:21:20,628 INFO L82 PathProgramCache]: Analyzing trace with hash 322636028, now seen corresponding path program 1 times [2018-10-24 16:21:20,629 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:21:20,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:21:20,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:20,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:21:20,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:21:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:21:21,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:21:21,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:21:21,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:21:21,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:21:21,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:21:21,038 INFO L87 Difference]: Start difference. First operand 1946 states and 3412 transitions. Second operand 4 states. [2018-10-24 16:21:35,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:21:35,757 INFO L93 Difference]: Finished difference Result 7107 states and 12745 transitions. [2018-10-24 16:21:35,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:21:35,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-10-24 16:21:35,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:21:35,788 INFO L225 Difference]: With dead ends: 7107 [2018-10-24 16:21:35,789 INFO L226 Difference]: Without dead ends: 5163 [2018-10-24 16:21:35,794 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 16:21:35,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2018-10-24 16:21:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5141. [2018-10-24 16:21:35,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2018-10-24 16:21:35,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 8063 transitions. [2018-10-24 16:21:35,896 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 8063 transitions. Word has length 101 [2018-10-24 16:21:35,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:21:35,897 INFO L481 AbstractCegarLoop]: Abstraction has 5141 states and 8063 transitions. [2018-10-24 16:21:35,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:21:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 8063 transitions. [2018-10-24 16:21:35,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-24 16:21:35,918 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:21:35,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:21:35,918 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:21:35,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:21:35,920 INFO L82 PathProgramCache]: Analyzing trace with hash 2124125896, now seen corresponding path program 1 times [2018-10-24 16:21:35,920 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:21:35,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:21:35,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:35,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:21:35,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:21:36,476 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 16:21:36,713 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2018-10-24 16:21:36,920 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2018-10-24 16:21:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:21:37,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:21:37,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 16:21:37,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 16:21:37,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 16:21:37,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:21:37,479 INFO L87 Difference]: Start difference. First operand 5141 states and 8063 transitions. Second operand 8 states. [2018-10-24 16:21:53,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:21:53,495 INFO L93 Difference]: Finished difference Result 12647 states and 18962 transitions. [2018-10-24 16:21:53,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:21:53,496 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2018-10-24 16:21:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:21:53,533 INFO L225 Difference]: With dead ends: 12647 [2018-10-24 16:21:53,533 INFO L226 Difference]: Without dead ends: 7508 [2018-10-24 16:21:53,540 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-10-24 16:21:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2018-10-24 16:21:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 6717. [2018-10-24 16:21:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6717 states. [2018-10-24 16:21:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 9650 transitions. [2018-10-24 16:21:53,664 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 9650 transitions. Word has length 189 [2018-10-24 16:21:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:21:53,665 INFO L481 AbstractCegarLoop]: Abstraction has 6717 states and 9650 transitions. [2018-10-24 16:21:53,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 16:21:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 9650 transitions. [2018-10-24 16:21:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-10-24 16:21:53,669 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:21:53,669 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:21:53,670 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:21:53,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:21:53,670 INFO L82 PathProgramCache]: Analyzing trace with hash -750866619, now seen corresponding path program 1 times [2018-10-24 16:21:53,670 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:21:53,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:21:53,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:53,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:21:53,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:21:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:21:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 67 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:21:54,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:21:54,158 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 16:21:54,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:21:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:21:54,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:21:54,522 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:21:54,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:21:54,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 16:21:54,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:21:54,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:21:54,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:21:54,552 INFO L87 Difference]: Start difference. First operand 6717 states and 9650 transitions. Second operand 6 states. [2018-10-24 16:22:29,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:22:29,276 INFO L93 Difference]: Finished difference Result 31065 states and 47529 transitions. [2018-10-24 16:22:29,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 16:22:29,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2018-10-24 16:22:29,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:22:29,362 INFO L225 Difference]: With dead ends: 31065 [2018-10-24 16:22:29,362 INFO L226 Difference]: Without dead ends: 24350 [2018-10-24 16:22:29,376 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:22:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24350 states. [2018-10-24 16:22:29,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24350 to 24167. [2018-10-24 16:22:29,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24167 states. [2018-10-24 16:22:29,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 34044 transitions. [2018-10-24 16:22:29,883 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 34044 transitions. Word has length 235 [2018-10-24 16:22:29,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:22:29,884 INFO L481 AbstractCegarLoop]: Abstraction has 24167 states and 34044 transitions. [2018-10-24 16:22:29,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:22:29,884 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 34044 transitions. [2018-10-24 16:22:29,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-10-24 16:22:29,896 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:22:29,896 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:22:29,896 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:22:29,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:22:29,897 INFO L82 PathProgramCache]: Analyzing trace with hash 410032636, now seen corresponding path program 1 times [2018-10-24 16:22:29,897 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:22:29,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:22:29,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:22:29,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:22:29,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:22:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:22:30,370 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 16:22:31,111 WARN L179 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 16:22:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 247 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 16:22:31,379 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:22:31,380 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 16:22:31,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:22:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:22:31,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:22:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-10-24 16:22:31,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:22:31,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-24 16:22:31,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:22:31,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:22:31,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:22:31,619 INFO L87 Difference]: Start difference. First operand 24167 states and 34044 transitions. Second operand 6 states. [2018-10-24 16:22:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:22:48,776 INFO L93 Difference]: Finished difference Result 105057 states and 150578 transitions. [2018-10-24 16:22:48,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:22:48,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 304 [2018-10-24 16:22:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:22:48,950 INFO L225 Difference]: With dead ends: 105057 [2018-10-24 16:22:48,950 INFO L226 Difference]: Without dead ends: 80892 [2018-10-24 16:22:48,988 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 304 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:22:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80892 states. [2018-10-24 16:22:49,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80892 to 80099. [2018-10-24 16:22:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80099 states. [2018-10-24 16:22:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80099 states to 80099 states and 99565 transitions. [2018-10-24 16:22:50,111 INFO L78 Accepts]: Start accepts. Automaton has 80099 states and 99565 transitions. Word has length 304 [2018-10-24 16:22:50,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:22:50,111 INFO L481 AbstractCegarLoop]: Abstraction has 80099 states and 99565 transitions. [2018-10-24 16:22:50,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:22:50,112 INFO L276 IsEmpty]: Start isEmpty. Operand 80099 states and 99565 transitions. [2018-10-24 16:22:50,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-10-24 16:22:50,151 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:22:50,152 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:22:50,152 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:22:50,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:22:50,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1649858408, now seen corresponding path program 1 times [2018-10-24 16:22:50,153 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:22:50,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:22:50,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:22:50,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:22:50,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:22:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:22:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-24 16:22:50,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:22:50,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:22:50,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:22:50,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:22:50,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:22:50,791 INFO L87 Difference]: Start difference. First operand 80099 states and 99565 transitions. Second operand 4 states. [2018-10-24 16:23:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:23:04,165 INFO L93 Difference]: Finished difference Result 179923 states and 225145 transitions. [2018-10-24 16:23:04,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:23:04,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 413 [2018-10-24 16:23:04,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:23:04,351 INFO L225 Difference]: With dead ends: 179923 [2018-10-24 16:23:04,351 INFO L226 Difference]: Without dead ends: 99826 [2018-10-24 16:23:04,423 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 16:23:04,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99826 states. [2018-10-24 16:23:05,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99826 to 99009. [2018-10-24 16:23:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99009 states. [2018-10-24 16:23:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99009 states to 99009 states and 117881 transitions. [2018-10-24 16:23:05,727 INFO L78 Accepts]: Start accepts. Automaton has 99009 states and 117881 transitions. Word has length 413 [2018-10-24 16:23:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:23:05,728 INFO L481 AbstractCegarLoop]: Abstraction has 99009 states and 117881 transitions. [2018-10-24 16:23:05,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:23:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 99009 states and 117881 transitions. [2018-10-24 16:23:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-10-24 16:23:05,769 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:23:05,774 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:23:05,775 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:23:05,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:23:05,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1668630669, now seen corresponding path program 1 times [2018-10-24 16:23:05,775 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:23:05,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:23:05,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:05,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:23:05,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:23:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-10-24 16:23:06,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:23:06,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:23:06,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:23:06,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:23:06,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:23:06,209 INFO L87 Difference]: Start difference. First operand 99009 states and 117881 transitions. Second operand 3 states. [2018-10-24 16:23:14,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:23:14,115 INFO L93 Difference]: Finished difference Result 197997 states and 235401 transitions. [2018-10-24 16:23:14,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:23:14,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 422 [2018-10-24 16:23:14,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:23:14,266 INFO L225 Difference]: With dead ends: 197997 [2018-10-24 16:23:14,267 INFO L226 Difference]: Without dead ends: 95836 [2018-10-24 16:23:14,342 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 16:23:14,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95836 states. [2018-10-24 16:23:15,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95836 to 90305. [2018-10-24 16:23:15,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90305 states. [2018-10-24 16:23:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90305 states to 90305 states and 102465 transitions. [2018-10-24 16:23:15,431 INFO L78 Accepts]: Start accepts. Automaton has 90305 states and 102465 transitions. Word has length 422 [2018-10-24 16:23:15,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:23:15,432 INFO L481 AbstractCegarLoop]: Abstraction has 90305 states and 102465 transitions. [2018-10-24 16:23:15,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:23:15,432 INFO L276 IsEmpty]: Start isEmpty. Operand 90305 states and 102465 transitions. [2018-10-24 16:23:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-10-24 16:23:15,466 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:23:15,467 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 16:23:15,467 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:23:15,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:23:15,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1432005481, now seen corresponding path program 1 times [2018-10-24 16:23:15,468 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:23:15,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:23:15,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:15,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:23:15,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:23:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 349 proven. 132 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-10-24 16:23:15,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:23:15,988 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:23:16,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:23:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:23:16,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:23:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-24 16:23:16,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:23:16,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 16:23:16,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:23:16,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:23:16,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:23:16,433 INFO L87 Difference]: Start difference. First operand 90305 states and 102465 transitions. Second operand 5 states. [2018-10-24 16:23:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:23:35,338 INFO L93 Difference]: Finished difference Result 341389 states and 386856 transitions. [2018-10-24 16:23:35,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:23:35,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 450 [2018-10-24 16:23:35,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:23:35,600 INFO L225 Difference]: With dead ends: 341389 [2018-10-24 16:23:35,600 INFO L226 Difference]: Without dead ends: 243172 [2018-10-24 16:23:35,688 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 449 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 16:23:35,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243172 states. [2018-10-24 16:23:38,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243172 to 175348. [2018-10-24 16:23:38,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175348 states. [2018-10-24 16:23:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175348 states to 175348 states and 191286 transitions. [2018-10-24 16:23:38,593 INFO L78 Accepts]: Start accepts. Automaton has 175348 states and 191286 transitions. Word has length 450 [2018-10-24 16:23:38,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:23:38,594 INFO L481 AbstractCegarLoop]: Abstraction has 175348 states and 191286 transitions. [2018-10-24 16:23:38,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:23:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 175348 states and 191286 transitions. [2018-10-24 16:23:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-10-24 16:23:38,630 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:23:38,630 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 16:23:38,630 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:23:38,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:23:38,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1727726908, now seen corresponding path program 1 times [2018-10-24 16:23:38,631 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:23:38,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:23:38,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:38,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:23:38,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:23:39,142 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 460 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2018-10-24 16:23:39,143 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:23:39,143 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:23:39,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:23:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:23:39,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:23:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-10-24 16:23:40,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:23:40,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 16:23:40,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:23:40,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:23:40,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:23:40,814 INFO L87 Difference]: Start difference. First operand 175348 states and 191286 transitions. Second operand 5 states. [2018-10-24 16:23:56,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:23:56,308 INFO L93 Difference]: Finished difference Result 350730 states and 382761 transitions. [2018-10-24 16:23:56,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:23:56,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 532 [2018-10-24 16:23:56,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:23:56,492 INFO L225 Difference]: With dead ends: 350730 [2018-10-24 16:23:56,492 INFO L226 Difference]: Without dead ends: 172212 [2018-10-24 16:23:56,548 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 532 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:23:56,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172212 states. [2018-10-24 16:23:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172212 to 167437. [2018-10-24 16:23:57,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167437 states. [2018-10-24 16:23:58,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167437 states to 167437 states and 177413 transitions. [2018-10-24 16:23:58,002 INFO L78 Accepts]: Start accepts. Automaton has 167437 states and 177413 transitions. Word has length 532 [2018-10-24 16:23:58,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:23:58,003 INFO L481 AbstractCegarLoop]: Abstraction has 167437 states and 177413 transitions. [2018-10-24 16:23:58,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:23:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 167437 states and 177413 transitions. [2018-10-24 16:23:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-10-24 16:23:58,019 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:23:58,020 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:23:58,020 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:23:58,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:23:58,020 INFO L82 PathProgramCache]: Analyzing trace with hash -2101680439, now seen corresponding path program 1 times [2018-10-24 16:23:58,021 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:23:58,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:23:58,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:58,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:23:58,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:23:58,496 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 16:23:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-10-24 16:23:59,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:23:59,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:23:59,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:23:59,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:23:59,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:23:59,750 INFO L87 Difference]: Start difference. First operand 167437 states and 177413 transitions. Second operand 4 states. [2018-10-24 16:24:12,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:24:12,218 INFO L93 Difference]: Finished difference Result 342754 states and 362894 transitions. [2018-10-24 16:24:12,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:24:12,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 553 [2018-10-24 16:24:12,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:24:12,417 INFO L225 Difference]: With dead ends: 342754 [2018-10-24 16:24:12,417 INFO L226 Difference]: Without dead ends: 168989 [2018-10-24 16:24:12,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:24:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168989 states. [2018-10-24 16:24:13,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168989 to 165047. [2018-10-24 16:24:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165047 states. [2018-10-24 16:24:15,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165047 states to 165047 states and 173679 transitions. [2018-10-24 16:24:15,283 INFO L78 Accepts]: Start accepts. Automaton has 165047 states and 173679 transitions. Word has length 553 [2018-10-24 16:24:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:24:15,283 INFO L481 AbstractCegarLoop]: Abstraction has 165047 states and 173679 transitions. [2018-10-24 16:24:15,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:24:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 165047 states and 173679 transitions. [2018-10-24 16:24:15,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2018-10-24 16:24:15,309 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:24:15,310 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:24:15,310 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:24:15,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:24:15,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1391345164, now seen corresponding path program 1 times [2018-10-24 16:24:15,311 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:24:15,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:24:15,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:15,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:24:15,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:24:16,067 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-10-24 16:24:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 905 proven. 189 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2018-10-24 16:24:16,424 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:24:16,424 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 16:24:16,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:24:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:24:16,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:24:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 905 proven. 0 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2018-10-24 16:24:17,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:24:17,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2018-10-24 16:24:17,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 16:24:17,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 16:24:17,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:24:17,615 INFO L87 Difference]: Start difference. First operand 165047 states and 173679 transitions. Second operand 8 states. [2018-10-24 16:24:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:24:31,875 INFO L93 Difference]: Finished difference Result 333357 states and 350987 transitions. [2018-10-24 16:24:31,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 16:24:31,875 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 712 [2018-10-24 16:24:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:24:32,063 INFO L225 Difference]: With dead ends: 333357 [2018-10-24 16:24:32,063 INFO L226 Difference]: Without dead ends: 169100 [2018-10-24 16:24:32,145 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 715 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:24:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169100 states. Received shutdown request... [2018-10-24 16:24:32,762 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:24:32,766 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:24:32,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:24:32 BoogieIcfgContainer [2018-10-24 16:24:32,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:24:32,767 INFO L168 Benchmark]: Toolchain (without parser) took 227456.95 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 16:24:32,768 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 16:24:32,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2344.75 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: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:24:32,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 892.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:24:32,771 INFO L168 Benchmark]: Boogie Preprocessor took 601.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:24:32,771 INFO L168 Benchmark]: RCFGBuilder took 12955.85 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 243.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 605.5 MB. Max. memory is 7.1 GB. [2018-10-24 16:24:32,772 INFO L168 Benchmark]: TraceAbstraction took 210656.27 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 16:24:32,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2344.75 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: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 892.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 601.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12955.85 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 243.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 605.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210656.27 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 111). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.5s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 184.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9558 SDtfs, 42608 SDslu, 3780 SDs, 0 SdLazy, 65544 SolverSat, 20586 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 152.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2299 GetRequests, 2245 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175348occurred 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: 12.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 85617 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 6178 NumberOfCodeBlocks, 6178 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6162 ConstructedInterpolants, 0 QuantifiedInterpolants, 8279104 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2969 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 7540/7963 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown