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/Problem15_label15_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:46:27,182 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:46:27,184 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:46:27,196 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:46:27,197 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:46:27,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:46:27,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:46:27,201 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:46:27,203 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:46:27,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:46:27,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:46:27,205 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:46:27,206 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:46:27,207 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:46:27,212 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:46:27,213 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:46:27,214 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:46:27,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:46:27,223 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:46:27,227 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:46:27,228 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:46:27,229 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:46:27,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 00:46:27,233 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 00:46:27,233 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 00:46:27,234 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 00:46:27,235 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 00:46:27,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 00:46:27,236 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 00:46:27,239 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 00:46:27,240 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 00:46:27,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 00:46:27,244 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 00:46:27,271 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:46:27,271 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:46:27,272 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:46:27,272 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:46:27,273 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:46:27,273 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:46:27,273 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:46:27,273 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:46:27,273 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:46:27,274 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:46:27,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:46:27,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:46:27,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:46:27,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:46:27,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:46:27,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:46:27,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:46:27,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:46:27,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:46:27,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:46:27,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:46:27,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:46:27,276 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:46:27,276 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:46:27,277 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:46:27,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:46:27,277 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:46:27,277 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:46:27,339 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:46:27,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:46:27,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:46:27,361 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:46:27,361 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:46:27,362 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label15_false-unreach-call.c [2018-07-24 00:46:27,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3cddee02/40ce92ca58914bba9aa2e4bd09b02e33/FLAGb559cf33f [2018-07-24 00:46:28,083 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:46:28,084 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label15_false-unreach-call.c [2018-07-24 00:46:28,108 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3cddee02/40ce92ca58914bba9aa2e4bd09b02e33/FLAGb559cf33f [2018-07-24 00:46:28,124 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3cddee02/40ce92ca58914bba9aa2e4bd09b02e33 [2018-07-24 00:46:28,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:46:28,137 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:46:28,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:46:28,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:46:28,147 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:46:28,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:46:28" (1/1) ... [2018-07-24 00:46:28,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3fd0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:28, skipping insertion in model container [2018-07-24 00:46:28,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:46:28" (1/1) ... [2018-07-24 00:46:28,444 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:46:29,116 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:46:29,132 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:46:29,430 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:46:29,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29 WrapperNode [2018-07-24 00:46:29,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:46:29,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:46:29,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:46:29,566 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:46:29,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:29,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:29,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:46:29,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:46:29,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:46:29,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:46:30,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:30,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:30,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:30,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:30,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:30,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:30,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (1/1) ... [2018-07-24 00:46:30,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:46:30,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:46:30,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:46:30,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:46:30,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (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 00:46:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:46:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:46:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:46:40,643 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:46:40,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:46:40 BoogieIcfgContainer [2018-07-24 00:46:40,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:46:40,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:46:40,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:46:40,649 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:46:40,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:46:28" (1/3) ... [2018-07-24 00:46:40,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dca76d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:46:40, skipping insertion in model container [2018-07-24 00:46:40,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:46:29" (2/3) ... [2018-07-24 00:46:40,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dca76d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:46:40, skipping insertion in model container [2018-07-24 00:46:40,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:46:40" (3/3) ... [2018-07-24 00:46:40,653 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label15_false-unreach-call.c [2018-07-24 00:46:40,663 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:46:40,672 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:46:40,729 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:46:40,730 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:46:40,730 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:46:40,730 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:46:40,730 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:46:40,731 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:46:40,731 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:46:40,731 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:46:40,731 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:46:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2018-07-24 00:46:40,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-24 00:46:40,767 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:46:40,768 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] [2018-07-24 00:46:40,768 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:46:40,774 INFO L82 PathProgramCache]: Analyzing trace with hash 183950178, now seen corresponding path program 1 times [2018-07-24 00:46:40,776 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:46:40,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:46:40,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:46:40,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:46:40,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:46:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:46:41,188 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 00:46:41,191 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:46:41,192 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:46:41,197 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:46:41,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:46:41,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:46:41,217 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 4 states. [2018-07-24 00:46:48,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:46:48,598 INFO L93 Difference]: Finished difference Result 1518 states and 2794 transitions. [2018-07-24 00:46:48,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:46:48,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-07-24 00:46:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:46:48,632 INFO L225 Difference]: With dead ends: 1518 [2018-07-24 00:46:48,633 INFO L226 Difference]: Without dead ends: 1086 [2018-07-24 00:46:48,639 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 00:46:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2018-07-24 00:46:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 739. [2018-07-24 00:46:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2018-07-24 00:46:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1331 transitions. [2018-07-24 00:46:48,745 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1331 transitions. Word has length 20 [2018-07-24 00:46:48,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:46:48,745 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1331 transitions. [2018-07-24 00:46:48,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:46:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1331 transitions. [2018-07-24 00:46:48,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-24 00:46:48,750 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:46:48,750 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:46:48,751 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:46:48,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1275050877, now seen corresponding path program 1 times [2018-07-24 00:46:48,751 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:46:48,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:46:48,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:46:48,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:46:48,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:46:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:46:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:46:49,080 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:46:49,080 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:46:49,083 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:46:49,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:46:49,084 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:46:49,084 INFO L87 Difference]: Start difference. First operand 739 states and 1331 transitions. Second operand 4 states. [2018-07-24 00:46:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:46:57,292 INFO L93 Difference]: Finished difference Result 2691 states and 5001 transitions. [2018-07-24 00:46:57,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:46:57,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2018-07-24 00:46:57,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:46:57,309 INFO L225 Difference]: With dead ends: 2691 [2018-07-24 00:46:57,309 INFO L226 Difference]: Without dead ends: 1954 [2018-07-24 00:46:57,314 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:46:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2018-07-24 00:46:57,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1951. [2018-07-24 00:46:57,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1951 states. [2018-07-24 00:46:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 3124 transitions. [2018-07-24 00:46:57,379 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 3124 transitions. Word has length 86 [2018-07-24 00:46:57,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:46:57,379 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 3124 transitions. [2018-07-24 00:46:57,380 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:46:57,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 3124 transitions. [2018-07-24 00:46:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-24 00:46:57,386 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:46:57,386 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:46:57,386 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:46:57,387 INFO L82 PathProgramCache]: Analyzing trace with hash 136975080, now seen corresponding path program 1 times [2018-07-24 00:46:57,387 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:46:57,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:46:57,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:46:57,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:46:57,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:46:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:46:57,593 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:46:57,593 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:46:57,593 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:46:57,594 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:46:57,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:46:57,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:46:57,595 INFO L87 Difference]: Start difference. First operand 1951 states and 3124 transitions. Second operand 4 states. [2018-07-24 00:47:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:47:04,922 INFO L93 Difference]: Finished difference Result 7566 states and 12200 transitions. [2018-07-24 00:47:04,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:47:04,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-07-24 00:47:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:47:04,953 INFO L225 Difference]: With dead ends: 7566 [2018-07-24 00:47:04,954 INFO L226 Difference]: Without dead ends: 5617 [2018-07-24 00:47:04,958 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:47:04,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5617 states. [2018-07-24 00:47:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5617 to 3751. [2018-07-24 00:47:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3751 states. [2018-07-24 00:47:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3751 states to 3751 states and 5353 transitions. [2018-07-24 00:47:05,040 INFO L78 Accepts]: Start accepts. Automaton has 3751 states and 5353 transitions. Word has length 103 [2018-07-24 00:47:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:47:05,040 INFO L471 AbstractCegarLoop]: Abstraction has 3751 states and 5353 transitions. [2018-07-24 00:47:05,041 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:47:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3751 states and 5353 transitions. [2018-07-24 00:47:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2018-07-24 00:47:05,051 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:47:05,051 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 00:47:05,051 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:47:05,052 INFO L82 PathProgramCache]: Analyzing trace with hash -2030711651, now seen corresponding path program 1 times [2018-07-24 00:47:05,052 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:47:05,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:47:05,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:05,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:05,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-24 00:47:05,836 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:47:05,836 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:47:05,837 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:47:05,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:47:05,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:47:05,838 INFO L87 Difference]: Start difference. First operand 3751 states and 5353 transitions. Second operand 6 states. [2018-07-24 00:47:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:47:13,428 INFO L93 Difference]: Finished difference Result 9627 states and 13615 transitions. [2018-07-24 00:47:13,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:47:13,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 377 [2018-07-24 00:47:13,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:47:13,456 INFO L225 Difference]: With dead ends: 9627 [2018-07-24 00:47:13,456 INFO L226 Difference]: Without dead ends: 5878 [2018-07-24 00:47:13,461 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:47:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2018-07-24 00:47:13,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5861. [2018-07-24 00:47:13,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5861 states. [2018-07-24 00:47:13,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5861 states to 5861 states and 7936 transitions. [2018-07-24 00:47:13,560 INFO L78 Accepts]: Start accepts. Automaton has 5861 states and 7936 transitions. Word has length 377 [2018-07-24 00:47:13,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:47:13,561 INFO L471 AbstractCegarLoop]: Abstraction has 5861 states and 7936 transitions. [2018-07-24 00:47:13,561 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:47:13,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5861 states and 7936 transitions. [2018-07-24 00:47:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2018-07-24 00:47:13,573 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:47:13,574 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 00:47:13,574 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:47:13,574 INFO L82 PathProgramCache]: Analyzing trace with hash -175875249, now seen corresponding path program 1 times [2018-07-24 00:47:13,575 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:47:13,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:47:13,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:13,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:13,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:14,211 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-07-24 00:47:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 00:47:14,500 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:47:14,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 00:47:14,501 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:47:14,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:47:14,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:47:14,502 INFO L87 Difference]: Start difference. First operand 5861 states and 7936 transitions. Second operand 6 states. [2018-07-24 00:47:24,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:47:24,799 INFO L93 Difference]: Finished difference Result 15917 states and 21344 transitions. [2018-07-24 00:47:24,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:47:24,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 451 [2018-07-24 00:47:24,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:47:24,834 INFO L225 Difference]: With dead ends: 15917 [2018-07-24 00:47:24,834 INFO L226 Difference]: Without dead ends: 10361 [2018-07-24 00:47:24,843 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:47:24,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10361 states. [2018-07-24 00:47:25,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10361 to 10084. [2018-07-24 00:47:25,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10084 states. [2018-07-24 00:47:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10084 states to 10084 states and 12861 transitions. [2018-07-24 00:47:25,057 INFO L78 Accepts]: Start accepts. Automaton has 10084 states and 12861 transitions. Word has length 451 [2018-07-24 00:47:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:47:25,058 INFO L471 AbstractCegarLoop]: Abstraction has 10084 states and 12861 transitions. [2018-07-24 00:47:25,058 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:47:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 10084 states and 12861 transitions. [2018-07-24 00:47:25,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-07-24 00:47:25,074 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:47:25,075 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 00:47:25,075 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:47:25,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1745266467, now seen corresponding path program 1 times [2018-07-24 00:47:25,076 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:47:25,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:47:25,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:25,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:25,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 00:47:25,683 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:47:25,683 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:47:25,684 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:47:25,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:47:25,684 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:47:25,685 INFO L87 Difference]: Start difference. First operand 10084 states and 12861 transitions. Second operand 4 states. [2018-07-24 00:47:30,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:47:30,730 INFO L93 Difference]: Finished difference Result 21593 states and 27906 transitions. [2018-07-24 00:47:30,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:47:30,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 457 [2018-07-24 00:47:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:47:30,765 INFO L225 Difference]: With dead ends: 21593 [2018-07-24 00:47:30,765 INFO L226 Difference]: Without dead ends: 11814 [2018-07-24 00:47:30,774 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 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 00:47:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11814 states. [2018-07-24 00:47:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11814 to 11283. [2018-07-24 00:47:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11283 states. [2018-07-24 00:47:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11283 states to 11283 states and 13800 transitions. [2018-07-24 00:47:30,948 INFO L78 Accepts]: Start accepts. Automaton has 11283 states and 13800 transitions. Word has length 457 [2018-07-24 00:47:30,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:47:30,949 INFO L471 AbstractCegarLoop]: Abstraction has 11283 states and 13800 transitions. [2018-07-24 00:47:30,949 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:47:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 11283 states and 13800 transitions. [2018-07-24 00:47:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2018-07-24 00:47:30,965 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:47:30,966 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 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] [2018-07-24 00:47:30,966 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:47:30,967 INFO L82 PathProgramCache]: Analyzing trace with hash 801245523, now seen corresponding path program 1 times [2018-07-24 00:47:30,967 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:47:30,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:47:30,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:30,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:30,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:31,447 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-07-24 00:47:31,448 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:47:31,448 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:47:31,449 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:47:31,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:47:31,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:47:31,449 INFO L87 Difference]: Start difference. First operand 11283 states and 13800 transitions. Second operand 4 states. [2018-07-24 00:47:40,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:47:40,062 INFO L93 Difference]: Finished difference Result 21454 states and 26436 transitions. [2018-07-24 00:47:40,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:47:40,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 479 [2018-07-24 00:47:40,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:47:40,095 INFO L225 Difference]: With dead ends: 21454 [2018-07-24 00:47:40,095 INFO L226 Difference]: Without dead ends: 10476 [2018-07-24 00:47:40,106 INFO L573 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 [2018-07-24 00:47:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10476 states. [2018-07-24 00:47:40,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10476 to 8858. [2018-07-24 00:47:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8858 states. [2018-07-24 00:47:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8858 states to 8858 states and 10441 transitions. [2018-07-24 00:47:40,226 INFO L78 Accepts]: Start accepts. Automaton has 8858 states and 10441 transitions. Word has length 479 [2018-07-24 00:47:40,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:47:40,227 INFO L471 AbstractCegarLoop]: Abstraction has 8858 states and 10441 transitions. [2018-07-24 00:47:40,227 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:47:40,228 INFO L276 IsEmpty]: Start isEmpty. Operand 8858 states and 10441 transitions. [2018-07-24 00:47:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2018-07-24 00:47:40,247 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:47:40,247 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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] [2018-07-24 00:47:40,248 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:47:40,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1123928540, now seen corresponding path program 1 times [2018-07-24 00:47:40,248 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:47:40,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:47:40,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:40,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:40,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:40,700 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-24 00:47:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 499 proven. 4 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2018-07-24 00:47:41,656 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:47:41,656 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 00:47:41,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:41,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:47:42,225 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-07-24 00:47:42,247 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:47:42,247 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-24 00:47:42,249 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 00:47:42,249 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 00:47:42,249 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:47:42,249 INFO L87 Difference]: Start difference. First operand 8858 states and 10441 transitions. Second operand 8 states. [2018-07-24 00:47:56,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:47:56,179 INFO L93 Difference]: Finished difference Result 22233 states and 26141 transitions. [2018-07-24 00:47:56,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 00:47:56,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 566 [2018-07-24 00:47:56,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:47:56,199 INFO L225 Difference]: With dead ends: 22233 [2018-07-24 00:47:56,200 INFO L226 Difference]: Without dead ends: 11565 [2018-07-24 00:47:56,207 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 569 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-07-24 00:47:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11565 states. [2018-07-24 00:47:56,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11565 to 11556. [2018-07-24 00:47:56,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11556 states. [2018-07-24 00:47:56,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11556 states to 11556 states and 13015 transitions. [2018-07-24 00:47:56,401 INFO L78 Accepts]: Start accepts. Automaton has 11556 states and 13015 transitions. Word has length 566 [2018-07-24 00:47:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:47:56,402 INFO L471 AbstractCegarLoop]: Abstraction has 11556 states and 13015 transitions. [2018-07-24 00:47:56,402 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 00:47:56,402 INFO L276 IsEmpty]: Start isEmpty. Operand 11556 states and 13015 transitions. [2018-07-24 00:47:56,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2018-07-24 00:47:56,416 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:47:56,417 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:47:56,417 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:47:56,418 INFO L82 PathProgramCache]: Analyzing trace with hash -564930810, now seen corresponding path program 1 times [2018-07-24 00:47:56,418 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:47:56,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:47:56,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:56,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:56,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:47:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:57,125 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-24 00:47:57,576 WARN L169 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 18 [2018-07-24 00:47:57,996 WARN L169 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-07-24 00:47:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 367 proven. 107 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 00:47:58,991 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:47:58,991 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 00:47:58,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:47:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:47:59,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:48:32,378 WARN L169 SmtUtils]: Spent 32.29 s on a formula simplification. DAG size of input: 1387 DAG size of output: 95 [2018-07-24 00:48:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-07-24 00:48:38,413 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:48:38,414 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2018-07-24 00:48:38,415 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 00:48:38,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 00:48:38,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 00:48:38,415 INFO L87 Difference]: Start difference. First operand 11556 states and 13015 transitions. Second operand 11 states. [2018-07-24 00:48:47,509 WARN L169 SmtUtils]: Spent 8.11 s on a formula simplification that was a NOOP. DAG size: 103 [2018-07-24 00:49:42,057 WARN L169 SmtUtils]: Spent 11.63 s on a formula simplification. DAG size of input: 104 DAG size of output: 38 [2018-07-24 00:49:58,139 WARN L169 SmtUtils]: Spent 9.85 s on a formula simplification. DAG size of input: 103 DAG size of output: 62 Received shutdown request... [2018-07-24 00:50:46,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 00:50:46,553 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:50:46,560 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:50:46,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:50:46 BoogieIcfgContainer [2018-07-24 00:50:46,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:50:46,562 INFO L168 Benchmark]: Toolchain (without parser) took 258425.81 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 622.3 MB. Max. memory is 7.1 GB. [2018-07-24 00:50:46,563 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 00:50:46,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1427.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-24 00:50:46,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 267.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-07-24 00:50:46,565 INFO L168 Benchmark]: Boogie Preprocessor took 616.07 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 906.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 92.5 MB. Max. memory is 7.1 GB. [2018-07-24 00:50:46,567 INFO L168 Benchmark]: RCFGBuilder took 10194.41 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 334.4 MB). Peak memory consumption was 334.4 MB. Max. memory is 7.1 GB. [2018-07-24 00:50:46,569 INFO L168 Benchmark]: TraceAbstraction took 245915.96 ms. Allocated memory was 2.4 GB in the beginning and 3.4 GB in the end (delta: 962.1 MB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -686.5 MB). Peak memory consumption was 275.5 MB. Max. memory is 7.1 GB. [2018-07-24 00:50:46,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1427.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 267.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 616.07 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 906.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 92.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10194.41 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 334.4 MB). Peak memory consumption was 334.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245915.96 ms. Allocated memory was 2.4 GB in the beginning and 3.4 GB in the end (delta: 962.1 MB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -686.5 MB). Peak memory consumption was 275.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 64). Cancelled while BasicCegarLoop was constructing difference of abstraction (11556states) and interpolant automaton (currently 9 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (14757 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 425 locations, 1 error locations. TIMEOUT Result, 245.8s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 196.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3343 SDtfs, 9526 SDslu, 2162 SDs, 0 SdLazy, 28489 SolverSat, 3653 SolverUnsat, 38 SolverUnknown, 0 SolverNotchecked, 156.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1262 GetRequests, 1207 SyntacticMatches, 15 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 68.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11556occurred 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: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 4668 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 44.7s InterpolantComputationTime, 4353 NumberOfCodeBlocks, 4353 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4342 ConstructedInterpolants, 225 QuantifiedInterpolants, 53028295 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1417 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 3342/3453 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/Problem15_label15_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-50-46-597.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label15_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-50-46-597.csv Completed graceful shutdown