java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:08:33,711 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:08:33,714 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:08:33,729 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:08:33,730 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:08:33,731 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:08:33,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:08:33,735 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:08:33,738 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:08:33,739 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:08:33,741 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:08:33,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:08:33,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:08:33,744 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:08:33,745 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:08:33,746 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:08:33,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:08:33,748 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:08:33,750 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:08:33,752 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:08:33,753 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:08:33,755 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:08:33,757 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 23:08:33,766 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 23:08:33,792 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:08:33,793 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:08:33,794 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:08:33,794 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:08:33,794 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:08:33,794 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:08:33,795 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:08:33,795 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:08:33,795 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:08:33,795 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:08:33,795 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:08:33,796 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:08:33,796 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:08:33,796 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:08:33,797 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:08:33,798 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:08:33,798 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:08:33,798 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:08:33,798 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:08:33,798 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:08:33,799 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:08:33,799 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:08:33,799 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:08:33,799 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:08:33,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:08:33,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:08:33,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:08:33,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:08:33,801 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:08:33,802 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:08:33,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:08:33,802 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:08:33,802 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:08:33,802 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:08:33,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:08:33,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:08:33,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:08:33,867 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:08:33,867 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:08:33,868 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c [2018-10-23 23:08:33,925 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8b02531b6/f6929db680b34504850a514ab5e91012/FLAG8a2d1ca77 [2018-10-23 23:08:34,505 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:08:34,508 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c [2018-10-23 23:08:34,535 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8b02531b6/f6929db680b34504850a514ab5e91012/FLAG8a2d1ca77 [2018-10-23 23:08:34,564 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8b02531b6/f6929db680b34504850a514ab5e91012 [2018-10-23 23:08:34,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:08:34,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:08:34,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:08:34,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:08:34,588 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:08:34,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:08:34" (1/1) ... [2018-10-23 23:08:34,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7ae5c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:34, skipping insertion in model container [2018-10-23 23:08:34,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:08:34" (1/1) ... [2018-10-23 23:08:34,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:08:34,671 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:08:35,128 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:08:35,133 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:08:35,284 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:08:35,304 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:08:35,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35 WrapperNode [2018-10-23 23:08:35,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:08:35,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:08:35,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:08:35,307 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:08:35,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:08:35,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:08:35,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:08:35,549 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:08:35,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... [2018-10-23 23:08:35,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:08:35,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:08:35,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:08:35,648 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:08:35,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:08:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:08:35,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:08:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:08:35,706 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:08:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:08:35,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:08:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:08:35,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:08:38,897 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:08:38,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:08:38 BoogieIcfgContainer [2018-10-23 23:08:38,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:08:38,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:08:38,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:08:38,905 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:08:38,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:08:34" (1/3) ... [2018-10-23 23:08:38,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339e6b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:08:38, skipping insertion in model container [2018-10-23 23:08:38,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:08:35" (2/3) ... [2018-10-23 23:08:38,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339e6b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:08:38, skipping insertion in model container [2018-10-23 23:08:38,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:08:38" (3/3) ... [2018-10-23 23:08:38,915 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label14_true-unreach-call_false-termination.c [2018-10-23 23:08:38,927 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:08:38,940 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:08:38,959 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:08:39,006 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:08:39,006 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:08:39,006 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:08:39,007 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:08:39,007 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:08:39,007 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:08:39,007 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:08:39,008 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:08:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-23 23:08:39,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-23 23:08:39,052 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:08:39,054 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:08:39,060 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:08:39,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:08:39,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1783775568, now seen corresponding path program 1 times [2018-10-23 23:08:39,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:08:39,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:39,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:08:39,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:39,118 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:08:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:08:39,774 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:08:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:08:39,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:08:39,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:08:39,883 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:08:39,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:08:39,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:08:39,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:08:39,913 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-23 23:08:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:08:41,310 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-23 23:08:41,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:08:41,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2018-10-23 23:08:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:08:41,332 INFO L225 Difference]: With dead ends: 550 [2018-10-23 23:08:41,332 INFO L226 Difference]: Without dead ends: 340 [2018-10-23 23:08:41,339 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:08:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-23 23:08:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-23 23:08:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-23 23:08:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 541 transitions. [2018-10-23 23:08:41,415 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 541 transitions. Word has length 138 [2018-10-23 23:08:41,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:08:41,416 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 541 transitions. [2018-10-23 23:08:41,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:08:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 541 transitions. [2018-10-23 23:08:41,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-23 23:08:41,423 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:08:41,424 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:08:41,424 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:08:41,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:08:41,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1808650351, now seen corresponding path program 1 times [2018-10-23 23:08:41,425 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:08:41,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:41,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:08:41,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:41,427 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:08:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:08:41,633 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:08:41,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:08:41,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:08:41,634 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:08:41,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:08:41,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:08:41,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:08:41,636 INFO L87 Difference]: Start difference. First operand 340 states and 541 transitions. Second operand 6 states. [2018-10-23 23:08:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:08:43,445 INFO L93 Difference]: Finished difference Result 1075 states and 1784 transitions. [2018-10-23 23:08:43,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:08:43,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-10-23 23:08:43,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:08:43,459 INFO L225 Difference]: With dead ends: 1075 [2018-10-23 23:08:43,460 INFO L226 Difference]: Without dead ends: 741 [2018-10-23 23:08:43,466 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:08:43,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-10-23 23:08:43,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-10-23 23:08:43,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-10-23 23:08:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1120 transitions. [2018-10-23 23:08:43,523 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1120 transitions. Word has length 149 [2018-10-23 23:08:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:08:43,524 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1120 transitions. [2018-10-23 23:08:43,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:08:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1120 transitions. [2018-10-23 23:08:43,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-23 23:08:43,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:08:43,534 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:08:43,534 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:08:43,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:08:43,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2122506691, now seen corresponding path program 1 times [2018-10-23 23:08:43,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:08:43,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:43,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:08:43,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:43,536 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:08:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:08:43,991 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:08:43,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:08:43,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:08:43,992 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:08:43,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:08:43,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:08:43,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:08:43,994 INFO L87 Difference]: Start difference. First operand 724 states and 1120 transitions. Second operand 5 states. [2018-10-23 23:08:46,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:08:46,431 INFO L93 Difference]: Finished difference Result 1578 states and 2483 transitions. [2018-10-23 23:08:46,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:08:46,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2018-10-23 23:08:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:08:46,438 INFO L225 Difference]: With dead ends: 1578 [2018-10-23 23:08:46,439 INFO L226 Difference]: Without dead ends: 721 [2018-10-23 23:08:46,446 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:08:46,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2018-10-23 23:08:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2018-10-23 23:08:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2018-10-23 23:08:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1044 transitions. [2018-10-23 23:08:46,485 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1044 transitions. Word has length 150 [2018-10-23 23:08:46,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:08:46,485 INFO L481 AbstractCegarLoop]: Abstraction has 721 states and 1044 transitions. [2018-10-23 23:08:46,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:08:46,485 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1044 transitions. [2018-10-23 23:08:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-23 23:08:46,490 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:08:46,490 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:08:46,491 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:08:46,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:08:46,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1419468101, now seen corresponding path program 1 times [2018-10-23 23:08:46,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:08:46,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:46,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:08:46,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:46,493 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:08:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:08:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:08:46,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:08:46,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:08:46,694 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:08:46,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:08:46,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:08:46,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:08:46,696 INFO L87 Difference]: Start difference. First operand 721 states and 1044 transitions. Second operand 3 states. [2018-10-23 23:08:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:08:48,638 INFO L93 Difference]: Finished difference Result 2069 states and 3084 transitions. [2018-10-23 23:08:48,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:08:48,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2018-10-23 23:08:48,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:08:48,653 INFO L225 Difference]: With dead ends: 2069 [2018-10-23 23:08:48,653 INFO L226 Difference]: Without dead ends: 1354 [2018-10-23 23:08:48,658 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:08:48,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2018-10-23 23:08:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1347. [2018-10-23 23:08:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1347 states. [2018-10-23 23:08:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1892 transitions. [2018-10-23 23:08:48,702 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1892 transitions. Word has length 154 [2018-10-23 23:08:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:08:48,703 INFO L481 AbstractCegarLoop]: Abstraction has 1347 states and 1892 transitions. [2018-10-23 23:08:48,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:08:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1892 transitions. [2018-10-23 23:08:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-10-23 23:08:48,710 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:08:48,710 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:08:48,710 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:08:48,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:08:48,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1446107199, now seen corresponding path program 1 times [2018-10-23 23:08:48,711 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:08:48,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:48,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:08:48,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:48,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:08:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:08:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:08:48,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:08:48,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 23:08:48,976 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:08:48,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 23:08:48,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 23:08:48,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:08:48,977 INFO L87 Difference]: Start difference. First operand 1347 states and 1892 transitions. Second operand 4 states. [2018-10-23 23:08:50,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:08:50,108 INFO L93 Difference]: Finished difference Result 3232 states and 4626 transitions. [2018-10-23 23:08:50,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:08:50,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 173 [2018-10-23 23:08:50,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:08:50,124 INFO L225 Difference]: With dead ends: 3232 [2018-10-23 23:08:50,125 INFO L226 Difference]: Without dead ends: 1891 [2018-10-23 23:08:50,132 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:08:50,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2018-10-23 23:08:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1891. [2018-10-23 23:08:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1891 states. [2018-10-23 23:08:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2551 transitions. [2018-10-23 23:08:50,188 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2551 transitions. Word has length 173 [2018-10-23 23:08:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:08:50,189 INFO L481 AbstractCegarLoop]: Abstraction has 1891 states and 2551 transitions. [2018-10-23 23:08:50,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 23:08:50,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2551 transitions. [2018-10-23 23:08:50,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-23 23:08:50,199 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:08:50,200 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-10-23 23:08:50,200 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:08:50,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:08:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1915591307, now seen corresponding path program 1 times [2018-10-23 23:08:50,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:08:50,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:50,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:08:50,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:08:50,202 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:08:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:08:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 72 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-23 23:08:50,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:08:50,460 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:08:50,461 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-10-23 23:08:50,463 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [73], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-23 23:08:50,535 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:08:50,536 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:09:00,052 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:09:00,054 INFO L272 AbstractInterpreter]: Visited 70 different actions 70 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-10-23 23:09:00,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:09:00,067 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:09:03,328 INFO L232 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 79.88% of their original sizes. [2018-10-23 23:09:03,331 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 23:09:04,354 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 23:09:04,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 23:09:04,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-10-23 23:09:04,355 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:09:04,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-23 23:09:04,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-23 23:09:04,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-23 23:09:04,356 INFO L87 Difference]: Start difference. First operand 1891 states and 2551 transitions. Second operand 12 states. [2018-10-23 23:09:28,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:09:28,365 INFO L93 Difference]: Finished difference Result 3837 states and 5174 transitions. [2018-10-23 23:09:28,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-23 23:09:28,365 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2018-10-23 23:09:28,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:09:28,375 INFO L225 Difference]: With dead ends: 3837 [2018-10-23 23:09:28,375 INFO L226 Difference]: Without dead ends: 1952 [2018-10-23 23:09:28,380 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 205 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-10-23 23:09:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2018-10-23 23:09:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1952. [2018-10-23 23:09:28,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2018-10-23 23:09:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2617 transitions. [2018-10-23 23:09:28,440 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2617 transitions. Word has length 200 [2018-10-23 23:09:28,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:09:28,441 INFO L481 AbstractCegarLoop]: Abstraction has 1952 states and 2617 transitions. [2018-10-23 23:09:28,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-23 23:09:28,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2617 transitions. [2018-10-23 23:09:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-23 23:09:28,456 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:09:28,456 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-10-23 23:09:28,456 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:09:28,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:09:28,457 INFO L82 PathProgramCache]: Analyzing trace with hash 191855448, now seen corresponding path program 1 times [2018-10-23 23:09:28,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:09:28,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:09:28,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:09:28,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:09:28,458 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:09:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:09:29,408 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-23 23:09:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 90 proven. 41 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-23 23:09:29,633 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:09:29,633 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:09:29,634 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-23 23:09:29,635 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [73], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-23 23:09:29,651 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:09:29,652 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:09:54,198 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:09:54,199 INFO L272 AbstractInterpreter]: Visited 144 different actions 212 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-23 23:09:54,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:09:54,207 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:09:59,688 INFO L232 lantSequenceWeakener]: Weakened 173 states. On average, predicates are now at 80.97% of their original sizes. [2018-10-23 23:09:59,688 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 23:11:48,039 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 23:11:48,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 23:11:48,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [9] total 26 [2018-10-23 23:11:48,039 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:11:48,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-23 23:11:48,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-23 23:11:48,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-10-23 23:11:48,041 INFO L87 Difference]: Start difference. First operand 1952 states and 2617 transitions. Second operand 19 states. Received shutdown request... [2018-10-23 23:12:41,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-23 23:12:41,738 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:12:41,744 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:12:41,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:12:41 BoogieIcfgContainer [2018-10-23 23:12:41,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:12:41,745 INFO L168 Benchmark]: Toolchain (without parser) took 247165.60 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 668.6 MB. Max. memory is 7.1 GB. [2018-10-23 23:12:41,746 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:12:41,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-23 23:12:41,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 242.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-23 23:12:41,751 INFO L168 Benchmark]: Boogie Preprocessor took 98.31 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:12:41,751 INFO L168 Benchmark]: RCFGBuilder took 3252.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. [2018-10-23 23:12:41,752 INFO L168 Benchmark]: TraceAbstraction took 242843.08 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -781.1 MB). Peak memory consumption was 599.8 MB. Max. memory is 7.1 GB. [2018-10-23 23:12:41,757 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 723.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 242.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.31 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3252.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242843.08 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -781.1 MB). Peak memory consumption was 599.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 569]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 569). Cancelled while BasicCegarLoop was constructing difference of abstraction (1952states) and FLOYD_HOARE automaton (currently 18 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (31 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 242.7s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 86.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 804 SDtfs, 1954 SDslu, 706 SDs, 0 SdLazy, 3517 SolverSat, 750 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 455 GetRequests, 351 SyntacticMatches, 48 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 125.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1952occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 34.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9949404583550934 AbsIntWeakeningRatio, 0.21621621621621623 AbsIntAvgWeakeningVarsNumRemoved, 1840.5995085995087 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1173 NumberOfCodeBlocks, 1173 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1166 ConstructedInterpolants, 0 QuantifiedInterpolants, 768251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 249/305 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown