java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:01:52,129 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:01:52,131 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:01:52,144 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:01:52,144 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:01:52,145 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:01:52,147 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:01:52,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:01:52,150 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:01:52,151 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:01:52,152 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:01:52,152 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:01:52,153 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:01:52,154 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:01:52,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:01:52,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:01:52,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:01:52,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:01:52,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:01:52,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:01:52,164 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:01:52,165 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:01:52,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 22:01:52,178 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:01:52,193 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:01:52,193 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:01:52,194 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:01:52,195 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:01:52,195 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:01:52,195 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:01:52,196 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:01:52,196 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:01:52,196 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:01:52,197 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:01:52,197 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:01:52,197 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:01:52,197 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:01:52,198 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:01:52,198 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:01:52,198 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:01:52,198 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:01:52,199 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:01:52,199 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:01:52,199 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:01:52,199 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:01:52,199 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:01:52,200 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:01:52,200 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:01:52,200 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:01:52,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:01:52,200 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:01:52,201 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:01:52,246 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:01:52,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:01:52,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:01:52,266 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:01:52,267 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:01:52,267 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-11-06 22:01:52,335 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed849181f/5cac7602067b485e8f0941041a5aadd8/FLAG5f8275235 [2018-11-06 22:01:53,227 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:01:53,227 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-11-06 22:01:53,271 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed849181f/5cac7602067b485e8f0941041a5aadd8/FLAG5f8275235 [2018-11-06 22:01:53,287 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed849181f/5cac7602067b485e8f0941041a5aadd8 [2018-11-06 22:01:53,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:01:53,302 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:01:53,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:01:53,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:01:53,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:01:53,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:53" (1/1) ... [2018-11-06 22:01:53,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718131b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:53, skipping insertion in model container [2018-11-06 22:01:53,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:53" (1/1) ... [2018-11-06 22:01:53,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:01:53,567 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:01:55,628 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:01:55,634 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:01:56,744 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:01:56,811 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:01:56,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56 WrapperNode [2018-11-06 22:01:56,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:01:56,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:01:56,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:01:56,814 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:01:56,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:57,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:57,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:01:57,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:01:57,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:01:57,986 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:01:57,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:57,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:58,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:58,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:58,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:58,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:58,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2018-11-06 22:01:58,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:01:58,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:01:58,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:01:58,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:01:58,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:01:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 22:01:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:01:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:02:17,278 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:02:17,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:17 BoogieIcfgContainer [2018-11-06 22:02:17,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:02:17,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:02:17,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:02:17,283 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:02:17,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:01:53" (1/3) ... [2018-11-06 22:02:17,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94e66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:17, skipping insertion in model container [2018-11-06 22:02:17,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (2/3) ... [2018-11-06 22:02:17,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94e66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:17, skipping insertion in model container [2018-11-06 22:02:17,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:17" (3/3) ... [2018-11-06 22:02:17,287 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label39_true-unreach-call.c [2018-11-06 22:02:17,298 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:02:17,309 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:02:17,327 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:02:17,378 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:02:17,379 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:02:17,380 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:02:17,380 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:02:17,380 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:02:17,380 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:02:17,380 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:02:17,380 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:02:17,381 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:02:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 22:02:17,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-06 22:02:17,439 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:02:17,441 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] [2018-11-06 22:02:17,443 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:02:17,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:02:17,450 INFO L82 PathProgramCache]: Analyzing trace with hash 18549650, now seen corresponding path program 1 times [2018-11-06 22:02:17,452 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:02:17,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:02:17,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:02:17,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:02:17,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:02:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:02:18,183 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 22:02:18,848 WARN L179 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-11-06 22:02:19,611 WARN L179 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-11-06 22:02:19,794 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 4 [2018-11-06 22:02:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:02:19,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:02:19,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 22:02:19,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 22:02:19,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 22:02:19,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 22:02:19,836 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 6 states. [2018-11-06 22:02:20,045 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-06 22:02:59,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:02:59,997 INFO L93 Difference]: Finished difference Result 9077 states and 17599 transitions. [2018-11-06 22:02:59,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:02:59,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-06 22:03:00,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:03:00,068 INFO L225 Difference]: With dead ends: 9077 [2018-11-06 22:03:00,068 INFO L226 Difference]: Without dead ends: 7315 [2018-11-06 22:03:00,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-06 22:03:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2018-11-06 22:03:00,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 5898. [2018-11-06 22:03:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2018-11-06 22:03:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8690 transitions. [2018-11-06 22:03:00,348 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8690 transitions. Word has length 32 [2018-11-06 22:03:00,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:03:00,349 INFO L480 AbstractCegarLoop]: Abstraction has 5898 states and 8690 transitions. [2018-11-06 22:03:00,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 22:03:00,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8690 transitions. [2018-11-06 22:03:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-06 22:03:00,365 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:03:00,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:03:00,370 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:03:00,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:03:00,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1367111019, now seen corresponding path program 1 times [2018-11-06 22:03:00,370 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:03:00,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:03:00,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:03:00,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:03:00,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:03:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:03:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:03:00,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:03:00,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:03:00,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:03:00,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:03:00,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:03:00,902 INFO L87 Difference]: Start difference. First operand 5898 states and 8690 transitions. Second operand 4 states. [2018-11-06 22:03:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:03:18,192 INFO L93 Difference]: Finished difference Result 17319 states and 28130 transitions. [2018-11-06 22:03:18,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:03:18,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 268 [2018-11-06 22:03:18,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:03:18,248 INFO L225 Difference]: With dead ends: 17319 [2018-11-06 22:03:18,248 INFO L226 Difference]: Without dead ends: 11423 [2018-11-06 22:03:18,257 INFO L604 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 [2018-11-06 22:03:18,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11423 states. [2018-11-06 22:03:18,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11423 to 11417. [2018-11-06 22:03:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11417 states. [2018-11-06 22:03:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11417 states to 11417 states and 16863 transitions. [2018-11-06 22:03:18,478 INFO L78 Accepts]: Start accepts. Automaton has 11417 states and 16863 transitions. Word has length 268 [2018-11-06 22:03:18,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:03:18,479 INFO L480 AbstractCegarLoop]: Abstraction has 11417 states and 16863 transitions. [2018-11-06 22:03:18,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:03:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 11417 states and 16863 transitions. [2018-11-06 22:03:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-11-06 22:03:18,503 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:03:18,503 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:03:18,504 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:03:18,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:03:18,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1696026127, now seen corresponding path program 1 times [2018-11-06 22:03:18,504 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:03:18,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:03:18,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:03:18,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:03:18,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:03:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:03:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 59 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:03:19,190 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:03:19,190 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:03:19,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:03:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:03:19,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:03:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:03:19,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:03:19,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-11-06 22:03:19,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:03:19,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:03:19,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:03:19,610 INFO L87 Difference]: Start difference. First operand 11417 states and 16863 transitions. Second operand 5 states. [2018-11-06 22:03:47,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:03:47,010 INFO L93 Difference]: Finished difference Result 45041 states and 66691 transitions. [2018-11-06 22:03:47,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 22:03:47,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2018-11-06 22:03:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:03:47,116 INFO L225 Difference]: With dead ends: 45041 [2018-11-06 22:03:47,116 INFO L226 Difference]: Without dead ends: 28160 [2018-11-06 22:03:47,140 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 22:03:47,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28160 states. [2018-11-06 22:03:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28160 to 28086. [2018-11-06 22:03:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28086 states. [2018-11-06 22:03:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28086 states to 28086 states and 34885 transitions. [2018-11-06 22:03:47,618 INFO L78 Accepts]: Start accepts. Automaton has 28086 states and 34885 transitions. Word has length 336 [2018-11-06 22:03:47,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:03:47,620 INFO L480 AbstractCegarLoop]: Abstraction has 28086 states and 34885 transitions. [2018-11-06 22:03:47,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:03:47,621 INFO L276 IsEmpty]: Start isEmpty. Operand 28086 states and 34885 transitions. [2018-11-06 22:03:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2018-11-06 22:03:47,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:03:47,629 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:03:47,629 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:03:47,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:03:47,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1950389414, now seen corresponding path program 1 times [2018-11-06 22:03:47,630 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:03:47,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:03:47,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:03:47,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:03:47,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:03:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:03:48,254 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 190 proven. 4 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-11-06 22:03:48,255 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:03:48,255 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:03:48,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:03:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:03:48,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:03:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-06 22:03:48,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:03:48,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-06 22:03:48,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:03:48,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:03:48,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:03:48,563 INFO L87 Difference]: Start difference. First operand 28086 states and 34885 transitions. Second operand 4 states. [2018-11-06 22:04:07,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:04:07,525 INFO L93 Difference]: Finished difference Result 108378 states and 135212 transitions. [2018-11-06 22:04:07,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:04:07,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 405 [2018-11-06 22:04:07,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:04:07,681 INFO L225 Difference]: With dead ends: 108378 [2018-11-06 22:04:07,681 INFO L226 Difference]: Without dead ends: 80294 [2018-11-06 22:04:07,721 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:04:07,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80294 states. [2018-11-06 22:04:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80294 to 52670. [2018-11-06 22:04:08,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52670 states. [2018-11-06 22:04:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52670 states to 52670 states and 64085 transitions. [2018-11-06 22:04:08,556 INFO L78 Accepts]: Start accepts. Automaton has 52670 states and 64085 transitions. Word has length 405 [2018-11-06 22:04:08,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:04:08,557 INFO L480 AbstractCegarLoop]: Abstraction has 52670 states and 64085 transitions. [2018-11-06 22:04:08,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:04:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 52670 states and 64085 transitions. [2018-11-06 22:04:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2018-11-06 22:04:08,579 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:04:08,580 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:04:08,580 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:04:08,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:04:08,581 INFO L82 PathProgramCache]: Analyzing trace with hash 498167117, now seen corresponding path program 1 times [2018-11-06 22:04:08,581 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:04:08,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:04:08,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:08,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:08,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:09,737 WARN L179 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-11-06 22:04:10,414 WARN L179 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-11-06 22:04:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 516 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-11-06 22:04:11,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:04:11,354 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:04:11,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:11,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:04:12,290 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-11-06 22:04:12,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:04:12,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 22:04:12,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:04:12,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:04:12,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:04:12,314 INFO L87 Difference]: Start difference. First operand 52670 states and 64085 transitions. Second operand 5 states. [2018-11-06 22:04:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:04:32,516 INFO L93 Difference]: Finished difference Result 121733 states and 146055 transitions. [2018-11-06 22:04:32,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:04:32,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 709 [2018-11-06 22:04:32,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:04:32,608 INFO L225 Difference]: With dead ends: 121733 [2018-11-06 22:04:32,609 INFO L226 Difference]: Without dead ends: 62224 [2018-11-06 22:04:32,649 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 709 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 22:04:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62224 states. [2018-11-06 22:04:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62224 to 60856. [2018-11-06 22:04:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60856 states. [2018-11-06 22:04:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60856 states to 60856 states and 68115 transitions. [2018-11-06 22:04:33,316 INFO L78 Accepts]: Start accepts. Automaton has 60856 states and 68115 transitions. Word has length 709 [2018-11-06 22:04:33,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:04:33,317 INFO L480 AbstractCegarLoop]: Abstraction has 60856 states and 68115 transitions. [2018-11-06 22:04:33,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:04:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 60856 states and 68115 transitions. [2018-11-06 22:04:33,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2018-11-06 22:04:33,343 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:04:33,344 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:04:33,344 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:04:33,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:04:33,345 INFO L82 PathProgramCache]: Analyzing trace with hash 85172772, now seen corresponding path program 1 times [2018-11-06 22:04:33,345 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:04:33,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:04:33,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:33,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:33,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 59 proven. 72 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-06 22:04:34,886 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:04:34,886 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:04:34,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:35,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:04:35,507 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-11-06 22:04:35,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:04:35,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 22:04:35,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:04:35,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:04:35,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:04:35,531 INFO L87 Difference]: Start difference. First operand 60856 states and 68115 transitions. Second operand 5 states. [2018-11-06 22:04:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:04:48,757 INFO L93 Difference]: Finished difference Result 155865 states and 175773 transitions. [2018-11-06 22:04:48,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:04:48,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 732 [2018-11-06 22:04:48,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:04:48,861 INFO L225 Difference]: With dead ends: 155865 [2018-11-06 22:04:48,862 INFO L226 Difference]: Without dead ends: 95011 [2018-11-06 22:04:48,900 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 731 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:04:48,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95011 states. [2018-11-06 22:04:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95011 to 95005. [2018-11-06 22:04:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95005 states. [2018-11-06 22:04:49,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95005 states to 95005 states and 104498 transitions. [2018-11-06 22:04:49,791 INFO L78 Accepts]: Start accepts. Automaton has 95005 states and 104498 transitions. Word has length 732 [2018-11-06 22:04:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:04:49,792 INFO L480 AbstractCegarLoop]: Abstraction has 95005 states and 104498 transitions. [2018-11-06 22:04:49,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:04:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 95005 states and 104498 transitions. [2018-11-06 22:04:49,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 888 [2018-11-06 22:04:49,841 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:04:49,842 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:04:49,842 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:04:49,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:04:49,843 INFO L82 PathProgramCache]: Analyzing trace with hash 902544536, now seen corresponding path program 1 times [2018-11-06 22:04:49,843 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:04:49,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:04:49,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:49,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:49,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 22:04:50,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:04:50,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:04:50,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:04:50,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:04:50,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:04:50,572 INFO L87 Difference]: Start difference. First operand 95005 states and 104498 transitions. Second operand 4 states. [2018-11-06 22:05:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:05:02,067 INFO L93 Difference]: Finished difference Result 190008 states and 208997 transitions. [2018-11-06 22:05:02,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:05:02,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 887 [2018-11-06 22:05:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:05:02,224 INFO L225 Difference]: With dead ends: 190008 [2018-11-06 22:05:02,224 INFO L226 Difference]: Without dead ends: 95005 [2018-11-06 22:05:02,303 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:05:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95005 states. [2018-11-06 22:05:03,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95005 to 88167. [2018-11-06 22:05:03,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88167 states. [2018-11-06 22:05:04,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88167 states to 88167 states and 94225 transitions. [2018-11-06 22:05:04,097 INFO L78 Accepts]: Start accepts. Automaton has 88167 states and 94225 transitions. Word has length 887 [2018-11-06 22:05:04,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:05:04,098 INFO L480 AbstractCegarLoop]: Abstraction has 88167 states and 94225 transitions. [2018-11-06 22:05:04,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:05:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 88167 states and 94225 transitions. [2018-11-06 22:05:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2018-11-06 22:05:04,117 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:05:04,118 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-11-06 22:05:04,119 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:05:04,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:05:04,119 INFO L82 PathProgramCache]: Analyzing trace with hash -2106636785, now seen corresponding path program 1 times [2018-11-06 22:05:04,120 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:05:04,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:05:04,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:04,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:05:04,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:05:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 22:05:05,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:05:05,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:05:05,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:05:05,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:05:05,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:05:05,139 INFO L87 Difference]: Start difference. First operand 88167 states and 94225 transitions. Second operand 4 states. [2018-11-06 22:05:19,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:05:19,756 INFO L93 Difference]: Finished difference Result 304885 states and 327475 transitions. [2018-11-06 22:05:19,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:05:19,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 920 [2018-11-06 22:05:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:05:19,986 INFO L225 Difference]: With dead ends: 304885 [2018-11-06 22:05:19,986 INFO L226 Difference]: Without dead ends: 216720 [2018-11-06 22:05:20,046 INFO L604 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 [2018-11-06 22:05:20,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216720 states. [2018-11-06 22:05:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216720 to 216635. [2018-11-06 22:05:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216635 states. [2018-11-06 22:05:22,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216635 states to 216635 states and 230035 transitions. [2018-11-06 22:05:22,715 INFO L78 Accepts]: Start accepts. Automaton has 216635 states and 230035 transitions. Word has length 920 [2018-11-06 22:05:22,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:05:22,716 INFO L480 AbstractCegarLoop]: Abstraction has 216635 states and 230035 transitions. [2018-11-06 22:05:22,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:05:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 216635 states and 230035 transitions. [2018-11-06 22:05:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2018-11-06 22:05:22,732 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:05:22,733 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:05:22,733 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:05:22,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:05:22,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1395072064, now seen corresponding path program 1 times [2018-11-06 22:05:22,734 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:05:22,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:05:22,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:22,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:05:22,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:05:23,775 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-11-06 22:05:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-11-06 22:05:25,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:05:25,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 22:05:25,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:05:25,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:05:25,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:05:25,765 INFO L87 Difference]: Start difference. First operand 216635 states and 230035 transitions. Second operand 5 states. [2018-11-06 22:05:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:05:39,733 INFO L93 Difference]: Finished difference Result 526488 states and 561011 transitions. [2018-11-06 22:05:39,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:05:39,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 954 [2018-11-06 22:05:39,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:05:40,065 INFO L225 Difference]: With dead ends: 526488 [2018-11-06 22:05:40,065 INFO L226 Difference]: Without dead ends: 307118 [2018-11-06 22:05:40,173 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:05:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307118 states. Received shutdown request... [2018-11-06 22:05:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307118 to 306806. [2018-11-06 22:05:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306806 states. [2018-11-06 22:05:44,171 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 22:05:44,177 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 22:05:44,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:05:44 BoogieIcfgContainer [2018-11-06 22:05:44,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:05:44,178 INFO L168 Benchmark]: Toolchain (without parser) took 230877.55 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.8 GB). Free memory was 1.3 GB in the beginning and 764.3 MB in the end (delta: 576.8 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-06 22:05:44,180 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. [2018-11-06 22:05:44,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3508.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 948.3 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-11-06 22:05:44,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 1171.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 948.3 MB in the beginning and 2.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2018-11-06 22:05:44,190 INFO L168 Benchmark]: Boogie Preprocessor took 929.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:05:44,191 INFO L168 Benchmark]: RCFGBuilder took 18363.09 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 270.0 MB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 509.9 MB). Peak memory consumption was 779.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:05:44,192 INFO L168 Benchmark]: TraceAbstraction took 206898.08 ms. Allocated memory was 2.6 GB in the beginning and 3.2 GB in the end (delta: 685.8 MB). Free memory was 1.4 GB in the beginning and 764.3 MB in the end (delta: 659.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-06 22:05:44,198 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 3508.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 948.3 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1171.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 948.3 MB in the beginning and 2.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 929.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18363.09 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 270.0 MB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 509.9 MB). Peak memory consumption was 779.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206898.08 ms. Allocated memory was 2.6 GB in the beginning and 3.2 GB in the end (delta: 685.8 MB). Free memory was 1.4 GB in the beginning and 764.3 MB in the end (delta: 659.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 109). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 206.8s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 179.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14698 SDtfs, 44312 SDslu, 3994 SDs, 0 SdLazy, 94956 SolverSat, 21609 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 145.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2225 GetRequests, 2191 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216635occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 37418 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 7425 NumberOfCodeBlocks, 7425 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 7412 ConstructedInterpolants, 0 QuantifiedInterpolants, 13961026 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2599 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 4604/4749 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown