java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 03:39:05,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 03:39:05,290 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 03:39:05,302 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 03:39:05,302 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 03:39:05,303 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 03:39:05,304 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 03:39:05,306 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 03:39:05,308 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 03:39:05,309 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 03:39:05,310 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 03:39:05,310 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 03:39:05,311 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 03:39:05,312 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 03:39:05,313 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 03:39:05,314 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 03:39:05,315 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 03:39:05,317 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 03:39:05,319 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 03:39:05,320 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 03:39:05,321 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 03:39:05,322 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 03:39:05,325 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 03:39:05,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 03:39:05,325 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 03:39:05,326 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 03:39:05,327 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 03:39:05,328 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 03:39:05,329 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 03:39:05,330 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 03:39:05,330 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 03:39:05,331 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 03:39:05,331 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 03:39:05,331 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 03:39:05,332 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 03:39:05,333 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 03:39:05,333 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 03:39:05,350 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 03:39:05,351 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 03:39:05,351 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 03:39:05,352 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 03:39:05,352 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 03:39:05,352 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 03:39:05,353 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 03:39:05,353 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 03:39:05,353 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 03:39:05,353 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 03:39:05,353 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 03:39:05,354 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 03:39:05,354 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 03:39:05,354 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 03:39:05,354 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 03:39:05,354 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 03:39:05,355 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 03:39:05,355 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 03:39:05,355 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 03:39:05,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 03:39:05,355 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 03:39:05,356 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 03:39:05,356 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 03:39:05,356 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 03:39:05,356 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 03:39:05,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 03:39:05,356 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 03:39:05,357 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 03:39:05,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 03:39:05,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 03:39:05,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 03:39:05,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 03:39:05,418 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 03:39:05,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-07-24 03:39:05,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03e20475/102f11ebe0eb40dcb55ec644318474b3/FLAGc492fae74 [2018-07-24 03:39:06,340 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 03:39:06,341 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-07-24 03:39:06,396 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03e20475/102f11ebe0eb40dcb55ec644318474b3/FLAGc492fae74 [2018-07-24 03:39:06,420 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03e20475/102f11ebe0eb40dcb55ec644318474b3 [2018-07-24 03:39:06,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 03:39:06,435 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 03:39:06,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 03:39:06,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 03:39:06,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 03:39:06,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:39:06" (1/1) ... [2018-07-24 03:39:06,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8b2370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:06, skipping insertion in model container [2018-07-24 03:39:06,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:39:06" (1/1) ... [2018-07-24 03:39:06,990 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 03:39:08,760 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 03:39:08,779 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 03:39:09,975 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 03:39:10,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10 WrapperNode [2018-07-24 03:39:10,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 03:39:10,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 03:39:10,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 03:39:10,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 03:39:10,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:10,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:11,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 03:39:11,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 03:39:11,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 03:39:11,401 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 03:39:13,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:13,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:13,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:13,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:13,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:13,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:13,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... [2018-07-24 03:39:13,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 03:39:13,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 03:39:13,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 03:39:13,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 03:39:13,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 03:39:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 03:39:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 03:39:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 03:39:38,539 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 03:39:38,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:39:38 BoogieIcfgContainer [2018-07-24 03:39:38,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 03:39:38,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 03:39:38,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 03:39:38,544 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 03:39:38,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 03:39:06" (1/3) ... [2018-07-24 03:39:38,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158c6d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:39:38, skipping insertion in model container [2018-07-24 03:39:38,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:10" (2/3) ... [2018-07-24 03:39:38,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158c6d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:39:38, skipping insertion in model container [2018-07-24 03:39:38,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:39:38" (3/3) ... [2018-07-24 03:39:38,549 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label45_true-unreach-call.c [2018-07-24 03:39:38,558 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 03:39:38,570 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 03:39:38,653 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 03:39:38,654 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 03:39:38,655 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 03:39:38,655 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 03:39:38,655 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 03:39:38,655 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 03:39:38,655 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 03:39:38,655 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 03:39:38,655 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 03:39:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-07-24 03:39:38,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-24 03:39:38,716 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:39:38,718 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:39:38,718 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:39:38,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1660793902, now seen corresponding path program 1 times [2018-07-24 03:39:38,726 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:39:38,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:39:38,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:39:38,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:39:38,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:39:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:39:39,245 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 03:39:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:39:39,263 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:39:39,263 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 03:39:39,268 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:39:39,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:39:39,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:39:39,288 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-07-24 03:40:06,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:40:06,098 INFO L93 Difference]: Finished difference Result 6361 states and 12176 transitions. [2018-07-24 03:40:06,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:40:06,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-07-24 03:40:06,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:40:06,151 INFO L225 Difference]: With dead ends: 6361 [2018-07-24 03:40:06,151 INFO L226 Difference]: Without dead ends: 4605 [2018-07-24 03:40:06,163 INFO L573 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 [2018-07-24 03:40:06,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2018-07-24 03:40:06,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 3148. [2018-07-24 03:40:06,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2018-07-24 03:40:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 5068 transitions. [2018-07-24 03:40:06,343 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 5068 transitions. Word has length 48 [2018-07-24 03:40:06,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:40:06,344 INFO L471 AbstractCegarLoop]: Abstraction has 3148 states and 5068 transitions. [2018-07-24 03:40:06,344 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:40:06,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 5068 transitions. [2018-07-24 03:40:06,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-24 03:40:06,355 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:40:06,355 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:40:06,355 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:40:06,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1361041398, now seen corresponding path program 1 times [2018-07-24 03:40:06,356 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:40:06,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:40:06,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:40:06,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:40:06,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:40:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:40:06,863 WARN L169 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 19 [2018-07-24 03:40:07,002 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2018-07-24 03:40:07,187 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 4 [2018-07-24 03:40:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:40:07,463 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:40:07,464 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 03:40:07,465 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 03:40:07,466 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 03:40:07,466 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 03:40:07,466 INFO L87 Difference]: Start difference. First operand 3148 states and 5068 transitions. Second operand 6 states. [2018-07-24 03:40:07,643 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-24 03:40:40,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:40:40,628 INFO L93 Difference]: Finished difference Result 13170 states and 20020 transitions. [2018-07-24 03:40:40,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 03:40:40,629 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-07-24 03:40:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:40:40,676 INFO L225 Difference]: With dead ends: 13170 [2018-07-24 03:40:40,677 INFO L226 Difference]: Without dead ends: 10024 [2018-07-24 03:40:40,683 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-24 03:40:40,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2018-07-24 03:40:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 8652. [2018-07-24 03:40:40,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2018-07-24 03:40:40,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 12036 transitions. [2018-07-24 03:40:40,852 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 12036 transitions. Word has length 116 [2018-07-24 03:40:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:40:40,853 INFO L471 AbstractCegarLoop]: Abstraction has 8652 states and 12036 transitions. [2018-07-24 03:40:40,853 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 03:40:40,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 12036 transitions. [2018-07-24 03:40:40,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-07-24 03:40:40,860 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:40:40,860 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:40:40,861 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:40:40,861 INFO L82 PathProgramCache]: Analyzing trace with hash -692491083, now seen corresponding path program 1 times [2018-07-24 03:40:40,861 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:40:40,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:40:40,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:40:40,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:40:40,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:40:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:40:41,928 WARN L169 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2018-07-24 03:40:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-24 03:40:42,482 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:40:42,482 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 03:40:42,483 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 03:40:42,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 03:40:42,484 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 03:40:42,484 INFO L87 Difference]: Start difference. First operand 8652 states and 12036 transitions. Second operand 7 states. [2018-07-24 03:41:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:41:22,263 INFO L93 Difference]: Finished difference Result 26878 states and 36468 transitions. [2018-07-24 03:41:22,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 03:41:22,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 324 [2018-07-24 03:41:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:41:22,345 INFO L225 Difference]: With dead ends: 26878 [2018-07-24 03:41:22,345 INFO L226 Difference]: Without dead ends: 18228 [2018-07-24 03:41:22,358 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-07-24 03:41:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18228 states. [2018-07-24 03:41:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18228 to 15493. [2018-07-24 03:41:22,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15493 states. [2018-07-24 03:41:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15493 states to 15493 states and 19189 transitions. [2018-07-24 03:41:22,696 INFO L78 Accepts]: Start accepts. Automaton has 15493 states and 19189 transitions. Word has length 324 [2018-07-24 03:41:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:41:22,698 INFO L471 AbstractCegarLoop]: Abstraction has 15493 states and 19189 transitions. [2018-07-24 03:41:22,698 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 03:41:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15493 states and 19189 transitions. [2018-07-24 03:41:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-07-24 03:41:22,704 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:41:22,709 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:41:22,709 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:41:22,710 INFO L82 PathProgramCache]: Analyzing trace with hash 408990287, now seen corresponding path program 1 times [2018-07-24 03:41:22,710 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:41:22,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:41:22,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:41:22,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:41:22,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:41:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:41:23,341 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:41:23,342 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:41:23,342 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:41:23,343 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:41:23,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:41:23,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:41:23,344 INFO L87 Difference]: Start difference. First operand 15493 states and 19189 transitions. Second operand 4 states. [2018-07-24 03:41:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:41:44,269 INFO L93 Difference]: Finished difference Result 44782 states and 58962 transitions. [2018-07-24 03:41:44,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:41:44,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 352 [2018-07-24 03:41:44,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:41:44,321 INFO L225 Difference]: With dead ends: 44782 [2018-07-24 03:41:44,322 INFO L226 Difference]: Without dead ends: 27924 [2018-07-24 03:41:44,340 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:41:44,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27924 states. [2018-07-24 03:41:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27924 to 27839. [2018-07-24 03:41:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27839 states. [2018-07-24 03:41:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27839 states to 27839 states and 35879 transitions. [2018-07-24 03:41:44,727 INFO L78 Accepts]: Start accepts. Automaton has 27839 states and 35879 transitions. Word has length 352 [2018-07-24 03:41:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:41:44,728 INFO L471 AbstractCegarLoop]: Abstraction has 27839 states and 35879 transitions. [2018-07-24 03:41:44,728 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:41:44,728 INFO L276 IsEmpty]: Start isEmpty. Operand 27839 states and 35879 transitions. [2018-07-24 03:41:44,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-07-24 03:41:44,734 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:41:44,734 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:41:44,735 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:41:44,735 INFO L82 PathProgramCache]: Analyzing trace with hash -650144942, now seen corresponding path program 1 times [2018-07-24 03:41:44,735 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:41:44,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:41:44,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:41:44,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:41:44,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:41:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:41:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:41:45,205 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:41:45,206 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:41:45,206 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:41:45,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:41:45,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:41:45,207 INFO L87 Difference]: Start difference. First operand 27839 states and 35879 transitions. Second operand 4 states. [2018-07-24 03:42:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:42:05,540 INFO L93 Difference]: Finished difference Result 65244 states and 84642 transitions. [2018-07-24 03:42:05,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:42:05,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 368 [2018-07-24 03:42:05,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:42:05,603 INFO L225 Difference]: With dead ends: 65244 [2018-07-24 03:42:05,603 INFO L226 Difference]: Without dead ends: 36040 [2018-07-24 03:42:05,634 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:42:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36040 states. [2018-07-24 03:42:06,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36040 to 36032. [2018-07-24 03:42:06,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36032 states. [2018-07-24 03:42:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36032 states to 36032 states and 43466 transitions. [2018-07-24 03:42:06,071 INFO L78 Accepts]: Start accepts. Automaton has 36032 states and 43466 transitions. Word has length 368 [2018-07-24 03:42:06,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:42:06,071 INFO L471 AbstractCegarLoop]: Abstraction has 36032 states and 43466 transitions. [2018-07-24 03:42:06,071 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:42:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 36032 states and 43466 transitions. [2018-07-24 03:42:06,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2018-07-24 03:42:06,088 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:42:06,088 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 03:42:06,088 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:42:06,089 INFO L82 PathProgramCache]: Analyzing trace with hash 277197855, now seen corresponding path program 1 times [2018-07-24 03:42:06,089 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:42:06,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:42:06,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:06,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:06,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:06,845 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 91 proven. 65 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2018-07-24 03:42:06,845 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:42:06,845 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:42:06,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:07,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:42:07,352 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-24 03:42:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 03:42:07,629 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:42:07,630 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-24 03:42:07,631 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 03:42:07,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 03:42:07,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 03:42:07,632 INFO L87 Difference]: Start difference. First operand 36032 states and 43466 transitions. Second operand 5 states. [2018-07-24 03:42:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:42:38,475 INFO L93 Difference]: Finished difference Result 135175 states and 164514 transitions. [2018-07-24 03:42:38,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 03:42:38,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 536 [2018-07-24 03:42:38,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:42:38,674 INFO L225 Difference]: With dead ends: 135175 [2018-07-24 03:42:38,675 INFO L226 Difference]: Without dead ends: 97777 [2018-07-24 03:42:38,707 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 03:42:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97777 states. [2018-07-24 03:42:39,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97777 to 97755. [2018-07-24 03:42:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97755 states. [2018-07-24 03:42:40,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97755 states to 97755 states and 107826 transitions. [2018-07-24 03:42:40,037 INFO L78 Accepts]: Start accepts. Automaton has 97755 states and 107826 transitions. Word has length 536 [2018-07-24 03:42:40,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:42:40,037 INFO L471 AbstractCegarLoop]: Abstraction has 97755 states and 107826 transitions. [2018-07-24 03:42:40,038 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 03:42:40,038 INFO L276 IsEmpty]: Start isEmpty. Operand 97755 states and 107826 transitions. [2018-07-24 03:42:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2018-07-24 03:42:40,057 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:42:40,058 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:42:40,058 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:42:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1189005932, now seen corresponding path program 1 times [2018-07-24 03:42:40,059 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:42:40,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:42:40,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:40,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:40,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:40,814 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 03:42:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-24 03:42:41,882 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:42:41,882 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:42:41,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:42,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:42:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:42:42,334 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:42:42,335 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 03:42:42,336 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:42:42,336 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:42:42,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:42:42,337 INFO L87 Difference]: Start difference. First operand 97755 states and 107826 transitions. Second operand 4 states. [2018-07-24 03:43:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:43:00,415 INFO L93 Difference]: Finished difference Result 350157 states and 388343 transitions. [2018-07-24 03:43:00,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:43:00,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 656 [2018-07-24 03:43:00,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:43:00,797 INFO L225 Difference]: With dead ends: 350157 [2018-07-24 03:43:00,798 INFO L226 Difference]: Without dead ends: 253770 [2018-07-24 03:43:00,895 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:43:01,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253770 states. [2018-07-24 03:43:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253770 to 161944. [2018-07-24 03:43:02,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161944 states. [2018-07-24 03:43:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161944 states to 161944 states and 176810 transitions. [2018-07-24 03:43:03,182 INFO L78 Accepts]: Start accepts. Automaton has 161944 states and 176810 transitions. Word has length 656 [2018-07-24 03:43:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:43:03,183 INFO L471 AbstractCegarLoop]: Abstraction has 161944 states and 176810 transitions. [2018-07-24 03:43:03,183 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:43:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 161944 states and 176810 transitions. [2018-07-24 03:43:03,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2018-07-24 03:43:03,219 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:43:03,220 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:43:03,220 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:43:03,221 INFO L82 PathProgramCache]: Analyzing trace with hash 904048543, now seen corresponding path program 1 times [2018-07-24 03:43:03,221 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:43:03,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:43:03,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:03,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:43:03,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 03:43:04,851 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2018-07-24 03:43:04,852 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:43:04,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 03:43:04,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 03:43:04,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 03:43:04,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 03:43:04,853 INFO L87 Difference]: Start difference. First operand 161944 states and 176810 transitions. Second operand 5 states. [2018-07-24 03:43:04,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 03:43:04,854 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 03:43:04,858 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 03:43:04,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:43:04 BoogieIcfgContainer [2018-07-24 03:43:04,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 03:43:04,859 INFO L168 Benchmark]: Toolchain (without parser) took 238425.83 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-24 03:43:04,860 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 03:43:04,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4256.39 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 208.7 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -127.2 MB). Peak memory consumption was 477.6 MB. Max. memory is 7.1 GB. [2018-07-24 03:43:04,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 704.10 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 187.8 MB). Peak memory consumption was 187.8 MB. Max. memory is 7.1 GB. [2018-07-24 03:43:04,863 INFO L168 Benchmark]: Boogie Preprocessor took 2376.77 ms. Allocated memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: 1.0 GB). Free memory was 1.3 GB in the beginning and 2.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 194.6 MB. Max. memory is 7.1 GB. [2018-07-24 03:43:04,864 INFO L168 Benchmark]: RCFGBuilder took 24761.83 ms. Allocated memory was 2.7 GB in the beginning and 3.0 GB in the end (delta: 291.0 MB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 288.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 03:43:04,865 INFO L168 Benchmark]: TraceAbstraction took 206318.04 ms. Allocated memory was 3.0 GB in the beginning and 4.0 GB in the end (delta: 978.8 MB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -444.0 MB). Peak memory consumption was 534.8 MB. Max. memory is 7.1 GB. [2018-07-24 03:43:04,870 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 4256.39 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 208.7 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -127.2 MB). Peak memory consumption was 477.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 704.10 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 187.8 MB). Peak memory consumption was 187.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2376.77 ms. Allocated memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: 1.0 GB). Free memory was 1.3 GB in the beginning and 2.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 194.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 24761.83 ms. Allocated memory was 2.7 GB in the beginning and 3.0 GB in the end (delta: 291.0 MB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 288.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 206318.04 ms. Allocated memory was 3.0 GB in the beginning and 4.0 GB in the end (delta: 978.8 MB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -444.0 MB). Peak memory consumption was 534.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was constructing difference of abstraction (161944states) and interpolant automaton (currently 2 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 206.2s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 191.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9505 SDtfs, 40868 SDslu, 3655 SDs, 0 SdLazy, 82353 SolverSat, 21816 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 163.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1239 GetRequests, 1202 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161944occurred in iteration=7, 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: 5.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 97505 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 4504 NumberOfCodeBlocks, 4504 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4494 ConstructedInterpolants, 0 QuantifiedInterpolants, 6615561 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1378 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 2307/2376 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label45_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_03-43-04-885.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label45_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_03-43-04-885.csv Completed graceful shutdown