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/Problem13_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 02:48:39,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 02:48:39,103 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 02:48:39,115 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 02:48:39,116 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 02:48:39,117 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 02:48:39,118 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 02:48:39,120 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 02:48:39,121 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 02:48:39,122 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 02:48:39,123 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 02:48:39,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 02:48:39,124 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 02:48:39,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 02:48:39,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 02:48:39,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 02:48:39,128 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 02:48:39,130 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 02:48:39,132 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 02:48:39,133 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 02:48:39,134 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 02:48:39,136 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 02:48:39,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 02:48:39,138 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 02:48:39,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 02:48:39,140 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 02:48:39,141 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 02:48:39,142 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 02:48:39,142 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 02:48:39,144 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 02:48:39,144 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 02:48:39,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 02:48:39,147 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 02:48:39,172 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 02:48:39,173 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 02:48:39,174 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 02:48:39,174 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 02:48:39,174 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 02:48:39,175 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 02:48:39,175 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 02:48:39,175 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 02:48:39,175 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 02:48:39,176 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 02:48:39,176 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 02:48:39,176 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 02:48:39,176 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 02:48:39,176 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 02:48:39,177 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 02:48:39,177 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 02:48:39,177 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 02:48:39,177 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 02:48:39,177 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 02:48:39,178 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:48:39,178 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 02:48:39,178 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 02:48:39,178 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 02:48:39,178 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 02:48:39,178 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 02:48:39,179 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 02:48:39,179 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 02:48:39,179 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 02:48:39,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 02:48:39,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 02:48:39,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 02:48:39,249 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 02:48:39,250 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 02:48:39,250 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-07-24 02:48:39,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95b130779/232387fa550b4c17922d5a4ee43e79c8/FLAG807757ba9 [2018-07-24 02:48:40,159 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 02:48:40,160 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-07-24 02:48:40,205 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95b130779/232387fa550b4c17922d5a4ee43e79c8/FLAG807757ba9 [2018-07-24 02:48:40,229 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95b130779/232387fa550b4c17922d5a4ee43e79c8 [2018-07-24 02:48:40,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 02:48:40,244 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 02:48:40,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 02:48:40,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 02:48:40,255 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 02:48:40,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:48:40" (1/1) ... [2018-07-24 02:48:40,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cca5ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:40, skipping insertion in model container [2018-07-24 02:48:40,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:48:40" (1/1) ... [2018-07-24 02:48:40,648 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 02:48:41,817 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:48:41,834 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 02:48:42,718 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:48:43,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43 WrapperNode [2018-07-24 02:48:43,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 02:48:43,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 02:48:43,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 02:48:43,163 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 02:48:43,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:43,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:44,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 02:48:44,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 02:48:44,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 02:48:44,031 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 02:48:45,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:45,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:45,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:45,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:45,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:45,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:45,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (1/1) ... [2018-07-24 02:48:45,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 02:48:45,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 02:48:45,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 02:48:45,780 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 02:48:45,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (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 02:48:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 02:48:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 02:48:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 02:48:59,575 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 02:48:59,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:48:59 BoogieIcfgContainer [2018-07-24 02:48:59,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 02:48:59,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 02:48:59,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 02:48:59,581 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 02:48:59,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:48:40" (1/3) ... [2018-07-24 02:48:59,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bbedf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:48:59, skipping insertion in model container [2018-07-24 02:48:59,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:43" (2/3) ... [2018-07-24 02:48:59,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bbedf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:48:59, skipping insertion in model container [2018-07-24 02:48:59,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:48:59" (3/3) ... [2018-07-24 02:48:59,585 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label09_true-unreach-call.c [2018-07-24 02:48:59,595 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 02:48:59,605 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 02:48:59,660 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 02:48:59,661 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 02:48:59,661 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 02:48:59,662 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 02:48:59,662 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 02:48:59,662 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 02:48:59,662 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 02:48:59,662 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 02:48:59,662 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 02:48:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-24 02:48:59,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-24 02:48:59,713 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:48:59,714 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:48:59,714 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:48:59,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1059493314, now seen corresponding path program 1 times [2018-07-24 02:48:59,722 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:48:59,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:48:59,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:48:59,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:48:59,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:48:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:00,261 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 02:49:00,264 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:49:00,265 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:49:00,271 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:49:00,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:49:00,292 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:49:00,295 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-24 02:49:16,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:49:16,614 INFO L93 Difference]: Finished difference Result 3991 states and 7504 transitions. [2018-07-24 02:49:16,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:49:16,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-07-24 02:49:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:49:16,661 INFO L225 Difference]: With dead ends: 3991 [2018-07-24 02:49:16,661 INFO L226 Difference]: Without dead ends: 2885 [2018-07-24 02:49:16,672 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:49:16,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2018-07-24 02:49:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1946. [2018-07-24 02:49:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2018-07-24 02:49:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 3412 transitions. [2018-07-24 02:49:16,843 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 3412 transitions. Word has length 61 [2018-07-24 02:49:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:49:16,844 INFO L471 AbstractCegarLoop]: Abstraction has 1946 states and 3412 transitions. [2018-07-24 02:49:16,844 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:49:16,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 3412 transitions. [2018-07-24 02:49:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-24 02:49:16,850 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:49:16,851 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:49:16,851 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:49:16,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1442154721, now seen corresponding path program 1 times [2018-07-24 02:49:16,852 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:49:16,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:49:16,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:16,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:16,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:49:17,202 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:49:17,203 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:49:17,205 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:49:17,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:49:17,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:49:17,206 INFO L87 Difference]: Start difference. First operand 1946 states and 3412 transitions. Second operand 4 states. [2018-07-24 02:49:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:49:36,666 INFO L93 Difference]: Finished difference Result 7107 states and 12745 transitions. [2018-07-24 02:49:36,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:49:36,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2018-07-24 02:49:36,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:49:36,697 INFO L225 Difference]: With dead ends: 7107 [2018-07-24 02:49:36,697 INFO L226 Difference]: Without dead ends: 5163 [2018-07-24 02:49:36,703 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:49:36,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2018-07-24 02:49:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5141. [2018-07-24 02:49:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2018-07-24 02:49:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 8063 transitions. [2018-07-24 02:49:36,813 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 8063 transitions. Word has length 128 [2018-07-24 02:49:36,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:49:36,814 INFO L471 AbstractCegarLoop]: Abstraction has 5141 states and 8063 transitions. [2018-07-24 02:49:36,814 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:49:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 8063 transitions. [2018-07-24 02:49:36,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-24 02:49:36,820 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:49:36,820 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:49:36,820 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:49:36,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1645796799, now seen corresponding path program 1 times [2018-07-24 02:49:36,821 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:49:36,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:49:36,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:36,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:36,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-07-24 02:49:37,139 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:49:37,139 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 02:49:37,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:37,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:49:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:49:37,331 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:49:37,331 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:49:37,332 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:49:37,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:49:37,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:49:37,337 INFO L87 Difference]: Start difference. First operand 5141 states and 8063 transitions. Second operand 4 states. [2018-07-24 02:49:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:49:52,048 INFO L93 Difference]: Finished difference Result 19796 states and 31255 transitions. [2018-07-24 02:49:52,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:49:52,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2018-07-24 02:49:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:49:52,126 INFO L225 Difference]: With dead ends: 19796 [2018-07-24 02:49:52,126 INFO L226 Difference]: Without dead ends: 14657 [2018-07-24 02:49:52,143 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 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 02:49:52,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14657 states. [2018-07-24 02:49:52,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14657 to 9883. [2018-07-24 02:49:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9883 states. [2018-07-24 02:49:52,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9883 states to 9883 states and 14820 transitions. [2018-07-24 02:49:52,393 INFO L78 Accepts]: Start accepts. Automaton has 9883 states and 14820 transitions. Word has length 158 [2018-07-24 02:49:52,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:49:52,394 INFO L471 AbstractCegarLoop]: Abstraction has 9883 states and 14820 transitions. [2018-07-24 02:49:52,395 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:49:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 9883 states and 14820 transitions. [2018-07-24 02:49:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-24 02:49:52,400 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:49:52,402 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:49:52,403 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:49:52,403 INFO L82 PathProgramCache]: Analyzing trace with hash 390072477, now seen corresponding path program 1 times [2018-07-24 02:49:52,403 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:49:52,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:49:52,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:52,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:52,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:52,925 WARN L169 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-24 02:49:53,608 WARN L169 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 28 [2018-07-24 02:49:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:49:53,728 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:49:53,729 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:49:53,729 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:49:53,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:49:53,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:49:53,730 INFO L87 Difference]: Start difference. First operand 9883 states and 14820 transitions. Second operand 5 states. [2018-07-24 02:50:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:50:06,240 INFO L93 Difference]: Finished difference Result 30794 states and 45712 transitions. [2018-07-24 02:50:06,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:50:06,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2018-07-24 02:50:06,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:50:06,298 INFO L225 Difference]: With dead ends: 30794 [2018-07-24 02:50:06,299 INFO L226 Difference]: Without dead ends: 20913 [2018-07-24 02:50:06,312 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:50:06,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20913 states. [2018-07-24 02:50:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20913 to 20912. [2018-07-24 02:50:06,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20912 states. [2018-07-24 02:50:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20912 states to 20912 states and 28527 transitions. [2018-07-24 02:50:06,659 INFO L78 Accepts]: Start accepts. Automaton has 20912 states and 28527 transitions. Word has length 167 [2018-07-24 02:50:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:50:06,660 INFO L471 AbstractCegarLoop]: Abstraction has 20912 states and 28527 transitions. [2018-07-24 02:50:06,660 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:50:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 20912 states and 28527 transitions. [2018-07-24 02:50:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-07-24 02:50:06,668 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:50:06,669 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:50:06,669 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:50:06,669 INFO L82 PathProgramCache]: Analyzing trace with hash -571397369, now seen corresponding path program 1 times [2018-07-24 02:50:06,670 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:50:06,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:50:06,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:06,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:50:06,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:50:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 117 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-24 02:50:07,088 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:50:07,088 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 02:50:07,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:50:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:50:07,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:50:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:50:07,333 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:50:07,333 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:50:07,334 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:50:07,335 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:50:07,335 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:50:07,335 INFO L87 Difference]: Start difference. First operand 20912 states and 28527 transitions. Second operand 4 states. [2018-07-24 02:50:18,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:50:18,094 INFO L93 Difference]: Finished difference Result 71018 states and 97372 transitions. [2018-07-24 02:50:18,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:50:18,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 267 [2018-07-24 02:50:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:50:18,201 INFO L225 Difference]: With dead ends: 71018 [2018-07-24 02:50:18,201 INFO L226 Difference]: Without dead ends: 50896 [2018-07-24 02:50:18,234 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 267 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 02:50:18,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50896 states. [2018-07-24 02:50:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50896 to 39822. [2018-07-24 02:50:18,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39822 states. [2018-07-24 02:50:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39822 states to 39822 states and 50522 transitions. [2018-07-24 02:50:19,327 INFO L78 Accepts]: Start accepts. Automaton has 39822 states and 50522 transitions. Word has length 267 [2018-07-24 02:50:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:50:19,327 INFO L471 AbstractCegarLoop]: Abstraction has 39822 states and 50522 transitions. [2018-07-24 02:50:19,328 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:50:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 39822 states and 50522 transitions. [2018-07-24 02:50:19,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-07-24 02:50:19,337 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:50:19,338 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 02:50:19,338 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:50:19,339 INFO L82 PathProgramCache]: Analyzing trace with hash 2043076177, now seen corresponding path program 1 times [2018-07-24 02:50:19,339 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:50:19,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:50:19,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:19,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:50:19,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:50:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-07-24 02:50:19,704 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:50:19,705 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 02:50:19,705 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:50:19,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:50:19,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:50:19,706 INFO L87 Difference]: Start difference. First operand 39822 states and 50522 transitions. Second operand 3 states. [2018-07-24 02:50:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:50:27,135 INFO L93 Difference]: Finished difference Result 114310 states and 145739 transitions. [2018-07-24 02:50:27,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:50:27,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2018-07-24 02:50:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:50:27,234 INFO L225 Difference]: With dead ends: 114310 [2018-07-24 02:50:27,235 INFO L226 Difference]: Without dead ends: 75278 [2018-07-24 02:50:27,284 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:50:27,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75278 states. [2018-07-24 02:50:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75278 to 74489. [2018-07-24 02:50:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74489 states. [2018-07-24 02:50:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74489 states to 74489 states and 89290 transitions. [2018-07-24 02:50:28,056 INFO L78 Accepts]: Start accepts. Automaton has 74489 states and 89290 transitions. Word has length 293 [2018-07-24 02:50:28,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:50:28,057 INFO L471 AbstractCegarLoop]: Abstraction has 74489 states and 89290 transitions. [2018-07-24 02:50:28,057 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:50:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 74489 states and 89290 transitions. [2018-07-24 02:50:28,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-07-24 02:50:28,081 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:50:28,081 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 02:50:28,082 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:50:28,082 INFO L82 PathProgramCache]: Analyzing trace with hash -40954621, now seen corresponding path program 1 times [2018-07-24 02:50:28,082 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:50:28,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:50:28,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:28,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:50:28,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:50:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-07-24 02:50:28,626 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:50:28,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:50:28,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:50:28,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:50:28,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:50:28,628 INFO L87 Difference]: Start difference. First operand 74489 states and 89290 transitions. Second operand 4 states. [2018-07-24 02:50:41,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:50:41,078 INFO L93 Difference]: Finished difference Result 193138 states and 232969 transitions. [2018-07-24 02:50:41,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:50:41,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 396 [2018-07-24 02:50:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:50:41,223 INFO L225 Difference]: With dead ends: 193138 [2018-07-24 02:50:41,224 INFO L226 Difference]: Without dead ends: 119439 [2018-07-24 02:50:41,280 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:50:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119439 states. [2018-07-24 02:50:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119439 to 119404. [2018-07-24 02:50:42,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119404 states. [2018-07-24 02:50:42,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119404 states to 119404 states and 138597 transitions. [2018-07-24 02:50:42,455 INFO L78 Accepts]: Start accepts. Automaton has 119404 states and 138597 transitions. Word has length 396 [2018-07-24 02:50:42,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:50:42,456 INFO L471 AbstractCegarLoop]: Abstraction has 119404 states and 138597 transitions. [2018-07-24 02:50:42,456 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:50:42,456 INFO L276 IsEmpty]: Start isEmpty. Operand 119404 states and 138597 transitions. [2018-07-24 02:50:42,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2018-07-24 02:50:42,487 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:50:42,488 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-07-24 02:50:42,488 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:50:42,488 INFO L82 PathProgramCache]: Analyzing trace with hash -2066761458, now seen corresponding path program 1 times [2018-07-24 02:50:42,488 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:50:42,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:50:42,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:42,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:50:42,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:50:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-07-24 02:50:42,917 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:50:42,917 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:50:42,918 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:50:42,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:50:42,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:50:42,918 INFO L87 Difference]: Start difference. First operand 119404 states and 138597 transitions. Second operand 5 states. [2018-07-24 02:51:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:51:09,952 INFO L93 Difference]: Finished difference Result 391987 states and 454895 transitions. [2018-07-24 02:51:09,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:51:09,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 477 [2018-07-24 02:51:09,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:51:10,259 INFO L225 Difference]: With dead ends: 391987 [2018-07-24 02:51:10,259 INFO L226 Difference]: Without dead ends: 273373 [2018-07-24 02:51:10,324 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:51:10,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273373 states. [2018-07-24 02:51:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273373 to 260561. [2018-07-24 02:51:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260561 states. [2018-07-24 02:51:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260561 states to 260561 states and 295629 transitions. [2018-07-24 02:51:12,537 INFO L78 Accepts]: Start accepts. Automaton has 260561 states and 295629 transitions. Word has length 477 [2018-07-24 02:51:12,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:51:12,537 INFO L471 AbstractCegarLoop]: Abstraction has 260561 states and 295629 transitions. [2018-07-24 02:51:12,537 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:51:12,537 INFO L276 IsEmpty]: Start isEmpty. Operand 260561 states and 295629 transitions. [2018-07-24 02:51:12,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2018-07-24 02:51:12,583 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:51:12,584 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 02:51:12,584 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:51:12,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1207682100, now seen corresponding path program 1 times [2018-07-24 02:51:12,585 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:51:12,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:51:12,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:12,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:12,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-07-24 02:51:14,616 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:51:14,616 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:51:14,617 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:51:14,617 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:51:14,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:14,618 INFO L87 Difference]: Start difference. First operand 260561 states and 295629 transitions. Second operand 4 states. [2018-07-24 02:51:32,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:51:32,273 INFO L93 Difference]: Finished difference Result 520352 states and 590500 transitions. [2018-07-24 02:51:32,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:51:32,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 566 [2018-07-24 02:51:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:51:32,539 INFO L225 Difference]: With dead ends: 520352 [2018-07-24 02:51:32,540 INFO L226 Difference]: Without dead ends: 260581 [2018-07-24 02:51:32,631 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260581 states. [2018-07-24 02:51:34,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260581 to 255043. [2018-07-24 02:51:34,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255043 states. [2018-07-24 02:51:35,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255043 states to 255043 states and 280707 transitions. [2018-07-24 02:51:35,104 INFO L78 Accepts]: Start accepts. Automaton has 255043 states and 280707 transitions. Word has length 566 [2018-07-24 02:51:35,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:51:35,104 INFO L471 AbstractCegarLoop]: Abstraction has 255043 states and 280707 transitions. [2018-07-24 02:51:35,104 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:51:35,104 INFO L276 IsEmpty]: Start isEmpty. Operand 255043 states and 280707 transitions. [2018-07-24 02:51:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-07-24 02:51:35,138 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:51:35,138 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 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] [2018-07-24 02:51:35,139 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:51:35,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1997089938, now seen corresponding path program 1 times [2018-07-24 02:51:35,139 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:51:35,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:51:35,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:35,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:35,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-07-24 02:51:35,627 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:51:35,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:51:35,628 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:51:35,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:51:35,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:35,628 INFO L87 Difference]: Start difference. First operand 255043 states and 280707 transitions. Second operand 4 states. [2018-07-24 02:51:46,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:51:46,519 INFO L93 Difference]: Finished difference Result 522690 states and 574832 transitions. [2018-07-24 02:51:46,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:51:46,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 629 [2018-07-24 02:51:46,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:51:46,799 INFO L225 Difference]: With dead ends: 522690 [2018-07-24 02:51:46,799 INFO L226 Difference]: Without dead ends: 229750 [2018-07-24 02:51:46,930 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229750 states. [2018-07-24 02:51:49,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229750 to 213989. [2018-07-24 02:51:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213989 states. [2018-07-24 02:51:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213989 states to 213989 states and 233017 transitions. [2018-07-24 02:51:49,951 INFO L78 Accepts]: Start accepts. Automaton has 213989 states and 233017 transitions. Word has length 629 [2018-07-24 02:51:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:51:49,951 INFO L471 AbstractCegarLoop]: Abstraction has 213989 states and 233017 transitions. [2018-07-24 02:51:49,952 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:51:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 213989 states and 233017 transitions. [2018-07-24 02:51:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2018-07-24 02:51:49,981 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:51:49,982 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:49,982 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:51:49,982 INFO L82 PathProgramCache]: Analyzing trace with hash 40773872, now seen corresponding path program 1 times [2018-07-24 02:51:49,983 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:51:49,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:51:49,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:49,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:49,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:50,593 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 6 [2018-07-24 02:51:51,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 776 proven. 8 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2018-07-24 02:51:51,869 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:51:51,869 INFO L221 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 [2018-07-24 02:51:51,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:52,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:51:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 961 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-07-24 02:51:52,477 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:51:52,477 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:51:52,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:51:52,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:51:52,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:52,479 INFO L87 Difference]: Start difference. First operand 213989 states and 233017 transitions. Second operand 4 states. [2018-07-24 02:52:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:52:05,082 INFO L93 Difference]: Finished difference Result 454784 states and 493792 transitions. [2018-07-24 02:52:05,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:52:05,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 690 [2018-07-24 02:52:05,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:52:05,383 INFO L225 Difference]: With dead ends: 454784 [2018-07-24 02:52:05,383 INFO L226 Difference]: Without dead ends: 241585 [2018-07-24 02:52:05,503 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 690 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 02:52:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241585 states. [2018-07-24 02:52:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241585 to 221867. [2018-07-24 02:52:07,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221867 states. [2018-07-24 02:52:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221867 states to 221867 states and 241032 transitions. [2018-07-24 02:52:08,191 INFO L78 Accepts]: Start accepts. Automaton has 221867 states and 241032 transitions. Word has length 690 [2018-07-24 02:52:08,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:52:08,192 INFO L471 AbstractCegarLoop]: Abstraction has 221867 states and 241032 transitions. [2018-07-24 02:52:08,192 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:52:08,192 INFO L276 IsEmpty]: Start isEmpty. Operand 221867 states and 241032 transitions. [2018-07-24 02:52:08,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2018-07-24 02:52:08,238 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:52:08,238 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 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] [2018-07-24 02:52:08,239 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:52:08,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1193181533, now seen corresponding path program 1 times [2018-07-24 02:52:08,239 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:52:08,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:52:08,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:08,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:52:08,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:52:08,910 WARN L169 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-24 02:52:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 1276 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2018-07-24 02:52:09,118 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:52:09,118 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:52:09,119 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:52:09,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:52:09,119 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:52:09,119 INFO L87 Difference]: Start difference. First operand 221867 states and 241032 transitions. Second operand 4 states. [2018-07-24 02:52:22,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:52:22,584 INFO L93 Difference]: Finished difference Result 442177 states and 480414 transitions. [2018-07-24 02:52:22,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:52:22,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 742 [2018-07-24 02:52:22,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:52:22,851 INFO L225 Difference]: With dead ends: 442177 [2018-07-24 02:52:22,851 INFO L226 Difference]: Without dead ends: 221100 [2018-07-24 02:52:22,967 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:52:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221100 states. Received shutdown request... [2018-07-24 02:52:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221100 to 218712. [2018-07-24 02:52:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218712 states. [2018-07-24 02:52:25,179 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 02:52:25,184 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 02:52:25,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:52:25 BoogieIcfgContainer [2018-07-24 02:52:25,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 02:52:25,185 INFO L168 Benchmark]: Toolchain (without parser) took 224943.26 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-24 02:52:25,186 INFO L168 Benchmark]: CDTParser took 0.26 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 02:52:25,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2914.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-07-24 02:52:25,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 868.00 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 278.4 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -541.0 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. [2018-07-24 02:52:25,188 INFO L168 Benchmark]: Boogie Preprocessor took 1748.74 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 672.7 MB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -635.5 MB). Peak memory consumption was 125.2 MB. Max. memory is 7.1 GB. [2018-07-24 02:52:25,189 INFO L168 Benchmark]: RCFGBuilder took 13796.78 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 455.6 MB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -446.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 02:52:25,190 INFO L168 Benchmark]: TraceAbstraction took 205606.77 ms. Allocated memory was 2.9 GB in the beginning and 4.5 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 2.4 GB in the end (delta: 257.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-24 02:52:25,195 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 2914.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 868.00 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 278.4 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -541.0 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1748.74 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 672.7 MB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -635.5 MB). Peak memory consumption was 125.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13796.78 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 455.6 MB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -446.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 205606.77 ms. Allocated memory was 2.9 GB in the beginning and 4.5 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 2.4 GB in the end (delta: 257.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 205.5s OverallTime, 12 OverallIterations, 7 TraceHistogramMax, 178.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9783 SDtfs, 25558 SDslu, 3413 SDs, 0 SdLazy, 59055 SolverSat, 14623 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 145.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1156 GetRequests, 1127 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260561occurred 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: 16.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 71463 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 5689 NumberOfCodeBlocks, 5689 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5674 ConstructedInterpolants, 0 QuantifiedInterpolants, 6946357 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1452 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 7854/7870 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/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_02-52-25-214.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_02-52-25-214.csv Completed graceful shutdown