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/Problem17_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:49:37,251 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:49:37,258 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:49:37,274 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:49:37,274 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:49:37,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:49:37,277 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:49:37,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:49:37,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:49:37,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:49:37,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:49:37,282 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:49:37,283 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:49:37,284 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:49:37,285 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:49:37,286 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:49:37,287 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:49:37,289 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:49:37,291 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:49:37,292 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:49:37,293 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:49:37,294 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:49:37,297 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:49:37,297 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:49:37,297 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:49:37,298 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:49:37,299 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:49:37,300 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:49:37,301 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:49:37,302 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:49:37,302 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:49:37,303 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:49:37,303 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:49:37,303 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:49:37,304 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:49:37,305 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:49:37,306 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-26 21:49:37,330 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:49:37,331 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:49:37,332 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:49:37,332 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:49:37,336 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:49:37,336 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:49:37,337 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:49:37,337 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:49:37,337 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:49:37,337 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:49:37,337 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:49:37,338 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:49:37,339 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:49:37,339 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:49:37,339 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:49:37,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:49:37,340 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:49:37,340 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:49:37,340 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:49:37,340 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:49:37,342 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:49:37,342 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:49:37,342 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:49:37,342 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:49:37,343 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:49:37,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:49:37,343 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:49:37,343 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 21:49:37,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:49:37,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:49:37,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:49:37,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:49:37,419 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:49:37,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label15_true-unreach-call.c [2018-10-26 21:49:37,480 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0eac31bd5/1ac0ae0abd234e8e966d03960793be33/FLAGba8102a87 [2018-10-26 21:49:38,143 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:49:38,143 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label15_true-unreach-call.c [2018-10-26 21:49:38,166 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0eac31bd5/1ac0ae0abd234e8e966d03960793be33/FLAGba8102a87 [2018-10-26 21:49:38,183 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0eac31bd5/1ac0ae0abd234e8e966d03960793be33 [2018-10-26 21:49:38,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:49:38,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:49:38,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:49:38,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:49:38,202 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:49:38,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:49:38" (1/1) ... [2018-10-26 21:49:38,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b704e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:38, skipping insertion in model container [2018-10-26 21:49:38,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:49:38" (1/1) ... [2018-10-26 21:49:38,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:49:38,335 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:49:39,353 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:49:39,358 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:49:39,726 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:49:39,750 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:49:39,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39 WrapperNode [2018-10-26 21:49:39,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:49:39,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:49:39,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:49:39,755 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:49:39,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:39,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:49:40,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:49:40,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:49:40,253 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:49:40,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... [2018-10-26 21:49:40,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:49:40,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:49:40,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:49:40,538 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:49:40,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 21:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:49:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:49:50,398 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:49:50,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:49:50 BoogieIcfgContainer [2018-10-26 21:49:50,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:49:50,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:49:50,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:49:50,405 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:49:50,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:49:38" (1/3) ... [2018-10-26 21:49:50,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fcab81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:49:50, skipping insertion in model container [2018-10-26 21:49:50,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:49:39" (2/3) ... [2018-10-26 21:49:50,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fcab81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:49:50, skipping insertion in model container [2018-10-26 21:49:50,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:49:50" (3/3) ... [2018-10-26 21:49:50,410 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label15_true-unreach-call.c [2018-10-26 21:49:50,419 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:49:50,428 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:49:50,447 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:49:50,494 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:49:50,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:49:50,495 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:49:50,495 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:49:50,495 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:49:50,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:49:50,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:49:50,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:49:50,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:49:50,531 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-26 21:49:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-26 21:49:50,540 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:49:50,541 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] [2018-10-26 21:49:50,543 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:49:50,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:49:50,552 INFO L82 PathProgramCache]: Analyzing trace with hash 680225122, now seen corresponding path program 1 times [2018-10-26 21:49:50,554 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:49:50,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:49:50,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:49:50,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:49:50,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:49:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:49:50,998 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-26 21:49:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:49:51,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:49:51,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:49:51,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:49:51,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:49:51,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:49:51,039 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-26 21:50:04,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:50:04,979 INFO L93 Difference]: Finished difference Result 2102 states and 3914 transitions. [2018-10-26 21:50:04,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:50:04,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-10-26 21:50:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:50:05,015 INFO L225 Difference]: With dead ends: 2102 [2018-10-26 21:50:05,015 INFO L226 Difference]: Without dead ends: 1504 [2018-10-26 21:50:05,022 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:50:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2018-10-26 21:50:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1491. [2018-10-26 21:50:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2018-10-26 21:50:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2416 transitions. [2018-10-26 21:50:05,172 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2416 transitions. Word has length 37 [2018-10-26 21:50:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:50:05,173 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 2416 transitions. [2018-10-26 21:50:05,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:50:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2416 transitions. [2018-10-26 21:50:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-26 21:50:05,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:50:05,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:50:05,182 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:50:05,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:50:05,183 INFO L82 PathProgramCache]: Analyzing trace with hash 469984361, now seen corresponding path program 1 times [2018-10-26 21:50:05,183 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:50:05,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:50:05,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:05,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:05,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:50:05,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:50:05,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:50:05,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:50:05,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:50:05,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:50:05,490 INFO L87 Difference]: Start difference. First operand 1491 states and 2416 transitions. Second operand 4 states. [2018-10-26 21:50:16,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:50:16,206 INFO L93 Difference]: Finished difference Result 4268 states and 6993 transitions. [2018-10-26 21:50:16,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:50:16,207 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-10-26 21:50:16,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:50:16,222 INFO L225 Difference]: With dead ends: 4268 [2018-10-26 21:50:16,222 INFO L226 Difference]: Without dead ends: 2779 [2018-10-26 21:50:16,226 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:50:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2018-10-26 21:50:16,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2779. [2018-10-26 21:50:16,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2779 states. [2018-10-26 21:50:16,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3841 transitions. [2018-10-26 21:50:16,282 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3841 transitions. Word has length 105 [2018-10-26 21:50:16,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:50:16,283 INFO L481 AbstractCegarLoop]: Abstraction has 2779 states and 3841 transitions. [2018-10-26 21:50:16,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:50:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3841 transitions. [2018-10-26 21:50:16,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-26 21:50:16,287 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:50:16,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:50:16,288 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:50:16,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:50:16,288 INFO L82 PathProgramCache]: Analyzing trace with hash -445607114, now seen corresponding path program 1 times [2018-10-26 21:50:16,288 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:50:16,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:50:16,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:16,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:16,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:50:16,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:50:16,573 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 [2018-10-26 21:50:16,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:16,673 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:50:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:50:16,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:50:16,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-26 21:50:16,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:50:16,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:50:16,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:50:16,947 INFO L87 Difference]: Start difference. First operand 2779 states and 3841 transitions. Second operand 6 states. [2018-10-26 21:50:32,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:50:32,133 INFO L93 Difference]: Finished difference Result 13733 states and 18932 transitions. [2018-10-26 21:50:32,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 21:50:32,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-10-26 21:50:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:50:32,175 INFO L225 Difference]: With dead ends: 13733 [2018-10-26 21:50:32,175 INFO L226 Difference]: Without dead ends: 8351 [2018-10-26 21:50:32,183 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:50:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8351 states. [2018-10-26 21:50:32,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8351 to 7060. [2018-10-26 21:50:32,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7060 states. [2018-10-26 21:50:32,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 8761 transitions. [2018-10-26 21:50:32,320 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 8761 transitions. Word has length 108 [2018-10-26 21:50:32,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:50:32,321 INFO L481 AbstractCegarLoop]: Abstraction has 7060 states and 8761 transitions. [2018-10-26 21:50:32,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:50:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 8761 transitions. [2018-10-26 21:50:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-10-26 21:50:32,324 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:50:32,324 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:50:32,325 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:50:32,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:50:32,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2115030227, now seen corresponding path program 1 times [2018-10-26 21:50:32,325 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:50:32,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:50:32,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:32,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:32,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:50:32,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:50:32,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:50:32,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:50:32,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:50:32,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:50:32,537 INFO L87 Difference]: Start difference. First operand 7060 states and 8761 transitions. Second operand 3 states. [2018-10-26 21:50:36,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:50:36,762 INFO L93 Difference]: Finished difference Result 17103 states and 21856 transitions. [2018-10-26 21:50:36,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:50:36,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2018-10-26 21:50:36,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:50:36,810 INFO L225 Difference]: With dead ends: 17103 [2018-10-26 21:50:36,810 INFO L226 Difference]: Without dead ends: 10472 [2018-10-26 21:50:36,821 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 [2018-10-26 21:50:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2018-10-26 21:50:36,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 10472. [2018-10-26 21:50:36,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10472 states. [2018-10-26 21:50:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10472 states to 10472 states and 12687 transitions. [2018-10-26 21:50:36,998 INFO L78 Accepts]: Start accepts. Automaton has 10472 states and 12687 transitions. Word has length 187 [2018-10-26 21:50:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:50:36,999 INFO L481 AbstractCegarLoop]: Abstraction has 10472 states and 12687 transitions. [2018-10-26 21:50:36,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:50:36,999 INFO L276 IsEmpty]: Start isEmpty. Operand 10472 states and 12687 transitions. [2018-10-26 21:50:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-10-26 21:50:37,007 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:50:37,008 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:50:37,008 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:50:37,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:50:37,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1359024060, now seen corresponding path program 1 times [2018-10-26 21:50:37,009 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:50:37,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:50:37,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:37,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:37,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 251 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-26 21:50:37,922 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:50:37,922 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 [2018-10-26 21:50:37,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:38,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:50:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 251 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-26 21:50:38,477 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:50:38,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-10-26 21:50:38,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:50:38,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:50:38,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:50:38,481 INFO L87 Difference]: Start difference. First operand 10472 states and 12687 transitions. Second operand 7 states. [2018-10-26 21:50:38,671 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-26 21:50:55,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:50:55,688 INFO L93 Difference]: Finished difference Result 33375 states and 40551 transitions. [2018-10-26 21:50:55,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 21:50:55,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 354 [2018-10-26 21:50:55,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:50:55,744 INFO L225 Difference]: With dead ends: 33375 [2018-10-26 21:50:55,744 INFO L226 Difference]: Without dead ends: 21139 [2018-10-26 21:50:55,761 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-26 21:50:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21139 states. [2018-10-26 21:50:56,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21139 to 17244. [2018-10-26 21:50:56,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17244 states. [2018-10-26 21:50:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17244 states to 17244 states and 19941 transitions. [2018-10-26 21:50:56,041 INFO L78 Accepts]: Start accepts. Automaton has 17244 states and 19941 transitions. Word has length 354 [2018-10-26 21:50:56,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:50:56,041 INFO L481 AbstractCegarLoop]: Abstraction has 17244 states and 19941 transitions. [2018-10-26 21:50:56,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:50:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 17244 states and 19941 transitions. [2018-10-26 21:50:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-10-26 21:50:56,050 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:50:56,050 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:50:56,050 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:50:56,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:50:56,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2059194911, now seen corresponding path program 1 times [2018-10-26 21:50:56,051 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:50:56,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:50:56,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:56,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:56,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:50:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 104 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:50:56,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:50:56,713 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 [2018-10-26 21:50:56,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:50:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:50:56,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:50:57,226 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 20 [2018-10-26 21:50:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 258 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-26 21:50:57,985 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:50:57,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2018-10-26 21:50:57,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:50:57,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:50:57,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:50:57,987 INFO L87 Difference]: Start difference. First operand 17244 states and 19941 transitions. Second operand 7 states. [2018-10-26 21:51:13,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:51:13,845 INFO L93 Difference]: Finished difference Result 51989 states and 59240 transitions. [2018-10-26 21:51:13,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 21:51:13,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2018-10-26 21:51:13,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:51:13,904 INFO L225 Difference]: With dead ends: 51989 [2018-10-26 21:51:13,904 INFO L226 Difference]: Without dead ends: 34306 [2018-10-26 21:51:13,930 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 359 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-26 21:51:13,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34306 states. [2018-10-26 21:51:14,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34306 to 25747. [2018-10-26 21:51:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25747 states. [2018-10-26 21:51:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25747 states to 25747 states and 28696 transitions. [2018-10-26 21:51:14,363 INFO L78 Accepts]: Start accepts. Automaton has 25747 states and 28696 transitions. Word has length 361 [2018-10-26 21:51:14,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:51:14,364 INFO L481 AbstractCegarLoop]: Abstraction has 25747 states and 28696 transitions. [2018-10-26 21:51:14,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:51:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 25747 states and 28696 transitions. [2018-10-26 21:51:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2018-10-26 21:51:14,652 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:51:14,653 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:51:14,653 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:51:14,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:51:14,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1653139911, now seen corresponding path program 1 times [2018-10-26 21:51:14,654 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:51:14,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:51:14,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:14,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:51:14,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:51:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-10-26 21:51:15,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:51:15,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:51:15,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:51:15,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:51:15,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:51:15,141 INFO L87 Difference]: Start difference. First operand 25747 states and 28696 transitions. Second operand 4 states. [2018-10-26 21:51:20,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:51:20,546 INFO L93 Difference]: Finished difference Result 58324 states and 65955 transitions. [2018-10-26 21:51:20,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:51:20,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 483 [2018-10-26 21:51:20,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:51:20,602 INFO L225 Difference]: With dead ends: 58324 [2018-10-26 21:51:20,603 INFO L226 Difference]: Without dead ends: 35551 [2018-10-26 21:51:20,631 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:51:20,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35551 states. [2018-10-26 21:51:20,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35551 to 34265. [2018-10-26 21:51:20,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34265 states. [2018-10-26 21:51:21,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34265 states to 34265 states and 37615 transitions. [2018-10-26 21:51:21,039 INFO L78 Accepts]: Start accepts. Automaton has 34265 states and 37615 transitions. Word has length 483 [2018-10-26 21:51:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:51:21,040 INFO L481 AbstractCegarLoop]: Abstraction has 34265 states and 37615 transitions. [2018-10-26 21:51:21,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:51:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 34265 states and 37615 transitions. [2018-10-26 21:51:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2018-10-26 21:51:21,060 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:51:21,060 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:51:21,061 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:51:21,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:51:21,061 INFO L82 PathProgramCache]: Analyzing trace with hash -564707112, now seen corresponding path program 1 times [2018-10-26 21:51:21,061 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:51:21,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:51:21,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:21,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:51:21,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:51:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-26 21:51:21,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:51:21,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:51:21,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:51:21,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:51:21,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:51:21,775 INFO L87 Difference]: Start difference. First operand 34265 states and 37615 transitions. Second operand 3 states. [2018-10-26 21:51:24,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:51:24,580 INFO L93 Difference]: Finished difference Result 75776 states and 83232 transitions. [2018-10-26 21:51:24,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:51:24,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 539 [2018-10-26 21:51:24,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:51:24,654 INFO L225 Difference]: With dead ends: 75776 [2018-10-26 21:51:24,654 INFO L226 Difference]: Without dead ends: 42365 [2018-10-26 21:51:24,679 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:51:24,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42365 states. [2018-10-26 21:51:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42365 to 41082. [2018-10-26 21:51:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41082 states. [2018-10-26 21:51:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41082 states to 41082 states and 44584 transitions. [2018-10-26 21:51:25,162 INFO L78 Accepts]: Start accepts. Automaton has 41082 states and 44584 transitions. Word has length 539 [2018-10-26 21:51:25,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:51:25,163 INFO L481 AbstractCegarLoop]: Abstraction has 41082 states and 44584 transitions. [2018-10-26 21:51:25,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:51:25,163 INFO L276 IsEmpty]: Start isEmpty. Operand 41082 states and 44584 transitions. [2018-10-26 21:51:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2018-10-26 21:51:25,179 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:51:25,180 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:51:25,180 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:51:25,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:51:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash -953741318, now seen corresponding path program 1 times [2018-10-26 21:51:25,181 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:51:25,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:51:25,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:25,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:51:25,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:51:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-26 21:51:25,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:51:25,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:51:25,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:51:25,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:51:25,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:51:25,918 INFO L87 Difference]: Start difference. First operand 41082 states and 44584 transitions. Second operand 5 states. [2018-10-26 21:51:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:51:37,238 INFO L93 Difference]: Finished difference Result 94114 states and 102382 transitions. [2018-10-26 21:51:37,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:51:37,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 567 [2018-10-26 21:51:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:51:37,310 INFO L225 Difference]: With dead ends: 94114 [2018-10-26 21:51:37,310 INFO L226 Difference]: Without dead ends: 57302 [2018-10-26 21:51:37,339 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:51:37,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57302 states. [2018-10-26 21:51:37,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57302 to 50037. [2018-10-26 21:51:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50037 states. [2018-10-26 21:51:37,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50037 states to 50037 states and 54009 transitions. [2018-10-26 21:51:37,943 INFO L78 Accepts]: Start accepts. Automaton has 50037 states and 54009 transitions. Word has length 567 [2018-10-26 21:51:37,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:51:37,945 INFO L481 AbstractCegarLoop]: Abstraction has 50037 states and 54009 transitions. [2018-10-26 21:51:37,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:51:37,945 INFO L276 IsEmpty]: Start isEmpty. Operand 50037 states and 54009 transitions. [2018-10-26 21:51:37,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2018-10-26 21:51:37,964 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:51:37,965 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:51:37,965 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:51:37,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:51:37,965 INFO L82 PathProgramCache]: Analyzing trace with hash 523501321, now seen corresponding path program 1 times [2018-10-26 21:51:37,966 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:51:37,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:51:37,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:37,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:51:37,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:51:38,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2018-10-26 21:51:38,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:51:38,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 21:51:38,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:51:38,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:51:38,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:51:38,574 INFO L87 Difference]: Start difference. First operand 50037 states and 54009 transitions. Second operand 3 states. [2018-10-26 21:51:41,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:51:41,044 INFO L93 Difference]: Finished difference Result 98785 states and 106695 transitions. [2018-10-26 21:51:41,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:51:41,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 574 [2018-10-26 21:51:41,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:51:41,101 INFO L225 Difference]: With dead ends: 98785 [2018-10-26 21:51:41,101 INFO L226 Difference]: Without dead ends: 49601 [2018-10-26 21:51:41,127 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:51:41,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49601 states. [2018-10-26 21:51:41,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49601 to 49170. [2018-10-26 21:51:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49170 states. [2018-10-26 21:51:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49170 states to 49170 states and 53080 transitions. [2018-10-26 21:51:41,619 INFO L78 Accepts]: Start accepts. Automaton has 49170 states and 53080 transitions. Word has length 574 [2018-10-26 21:51:41,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:51:41,620 INFO L481 AbstractCegarLoop]: Abstraction has 49170 states and 53080 transitions. [2018-10-26 21:51:41,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:51:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 49170 states and 53080 transitions. [2018-10-26 21:51:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2018-10-26 21:51:41,639 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:51:41,640 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:51:41,640 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:51:41,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:51:41,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1499392919, now seen corresponding path program 1 times [2018-10-26 21:51:41,641 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:51:41,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:51:41,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:41,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:51:41,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:51:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-10-26 21:51:42,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:51:42,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:51:42,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:51:42,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:51:42,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:51:42,415 INFO L87 Difference]: Start difference. First operand 49170 states and 53080 transitions. Second operand 5 states. [2018-10-26 21:51:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:51:55,570 INFO L93 Difference]: Finished difference Result 111985 states and 120884 transitions. [2018-10-26 21:51:55,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 21:51:55,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 602 [2018-10-26 21:51:55,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:51:55,625 INFO L225 Difference]: With dead ends: 111985 [2018-10-26 21:51:55,626 INFO L226 Difference]: Without dead ends: 68360 [2018-10-26 21:51:55,649 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:51:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68360 states. [2018-10-26 21:51:56,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68360 to 51725. [2018-10-26 21:51:56,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51725 states. [2018-10-26 21:51:56,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51725 states to 51725 states and 55814 transitions. [2018-10-26 21:51:56,135 INFO L78 Accepts]: Start accepts. Automaton has 51725 states and 55814 transitions. Word has length 602 [2018-10-26 21:51:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:51:56,135 INFO L481 AbstractCegarLoop]: Abstraction has 51725 states and 55814 transitions. [2018-10-26 21:51:56,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:51:56,135 INFO L276 IsEmpty]: Start isEmpty. Operand 51725 states and 55814 transitions. [2018-10-26 21:51:56,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2018-10-26 21:51:56,156 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:51:56,156 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:51:56,157 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:51:56,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:51:56,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1617078907, now seen corresponding path program 1 times [2018-10-26 21:51:56,157 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:51:56,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:51:56,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:56,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:51:56,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:51:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:51:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 635 proven. 248 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-10-26 21:51:56,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:51:56,957 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 [2018-10-26 21:51:56,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:51:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:51:57,127 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:52:15,908 WARN L179 SmtUtils]: Spent 16.29 s on a formula simplification. DAG size of input: 194 DAG size of output: 102 [2018-10-26 21:52:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2018-10-26 21:52:17,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:52:17,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2018-10-26 21:52:17,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 21:52:17,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 21:52:17,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2018-10-26 21:52:17,544 INFO L87 Difference]: Start difference. First operand 51725 states and 55814 transitions. Second operand 9 states. Received shutdown request... [2018-10-26 21:53:46,909 WARN L187 SmtUtils]: Removed 4 from assertion stack [2018-10-26 21:53:46,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:53:46,910 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 21:53:46,916 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 21:53:46,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:53:46 BoogieIcfgContainer [2018-10-26 21:53:46,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:53:46,917 INFO L168 Benchmark]: Toolchain (without parser) took 248721.15 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 979.0 MB. Max. memory is 7.1 GB. [2018-10-26 21:53:46,918 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 21:53:46,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1553.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-26 21:53:46,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 498.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 806.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -929.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-26 21:53:46,920 INFO L168 Benchmark]: Boogie Preprocessor took 283.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2018-10-26 21:53:46,921 INFO L168 Benchmark]: RCFGBuilder took 9862.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 458.6 MB). Peak memory consumption was 458.6 MB. Max. memory is 7.1 GB. [2018-10-26 21:53:46,922 INFO L168 Benchmark]: TraceAbstraction took 236514.14 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 465.0 MB. Max. memory is 7.1 GB. [2018-10-26 21:53:46,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1553.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 498.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 806.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -929.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 283.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9862.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 458.6 MB). Peak memory consumption was 458.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236514.14 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 465.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 116). Cancelled while BasicCegarLoop was constructing difference of abstraction (51725states) and FLOYD_HOARE automaton (currently 3 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 108. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 236.4s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 202.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4210 SDtfs, 14324 SDslu, 2487 SDs, 0 SdLazy, 39044 SolverSat, 5623 SolverUnsat, 35 SolverUnknown, 0 SolverNotchecked, 183.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1488 GetRequests, 1442 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 22.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51725occurred in iteration=11, 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: 3.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 40658 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 26.1s InterpolantComputationTime, 5964 NumberOfCodeBlocks, 5964 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 5948 ConstructedInterpolants, 343 QuantifiedInterpolants, 14166664 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1894 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 7856/8659 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown