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/Problem13_label54_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:50:21,868 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:50:21,871 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:50:21,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:50:21,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:50:21,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:50:21,891 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:50:21,892 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:50:21,894 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:50:21,895 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:50:21,896 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:50:21,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:50:21,897 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:50:21,898 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:50:21,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:50:21,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:50:21,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:50:21,903 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:50:21,904 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:50:21,906 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:50:21,907 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:50:21,909 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:50:21,911 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 23:50:21,917 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:50:21,917 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:50:21,918 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:50:21,919 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:50:21,919 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 [2018-10-26 23:50:21,941 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:50:21,942 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:50:21,943 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:50:21,943 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:50:21,943 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:50:21,944 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:50:21,944 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:50:21,944 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:50:21,945 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 23:50:21,945 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:50:21,945 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:50:21,945 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:50:21,946 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:50:21,946 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:50:21,946 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:50:21,947 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:50:21,947 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:50:21,948 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:50:21,948 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:50:21,948 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:50:21,948 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:50:21,948 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:50:21,949 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:50:21,949 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:50:21,949 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:50:21,949 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:50:21,950 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:50:21,950 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:50:21,950 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:50:21,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:50:21,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:50:21,951 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:50:21,951 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 23:50:21,951 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 23:50:22,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:50:22,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:50:22,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:50:22,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:50:22,037 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:50:22,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label54_false-unreach-call.c [2018-10-26 23:50:22,100 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/092acfd98/3c612a7b83b24311aa9035cef6724d98/FLAG04d3074e6 [2018-10-26 23:50:22,927 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:50:22,928 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label54_false-unreach-call.c [2018-10-26 23:50:22,963 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/092acfd98/3c612a7b83b24311aa9035cef6724d98/FLAG04d3074e6 [2018-10-26 23:50:22,982 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/092acfd98/3c612a7b83b24311aa9035cef6724d98 [2018-10-26 23:50:22,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:50:22,996 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:50:22,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:50:22,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:50:23,004 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:50:23,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:50:22" (1/1) ... [2018-10-26 23:50:23,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b692d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:23, skipping insertion in model container [2018-10-26 23:50:23,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:50:22" (1/1) ... [2018-10-26 23:50:23,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:50:23,218 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:50:24,806 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:50:24,811 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:50:25,468 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:50:25,506 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:50:25,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25 WrapperNode [2018-10-26 23:50:25,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:50:25,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:50:25,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:50:25,508 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:50:25,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:25,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:50:26,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:50:26,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:50:26,114 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:50:26,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (1/1) ... [2018-10-26 23:50:26,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:50:26,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:50:26,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:50:26,513 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:50:26,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (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 [2018-10-26 23:50:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:50:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:50:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-26 23:50:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-26 23:50:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-26 23:50:26,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-26 23:50:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-26 23:50:26,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-26 23:50:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 23:50:26,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 23:50:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:50:26,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:50:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:50:26,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:50:38,316 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:50:38,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:50:38 BoogieIcfgContainer [2018-10-26 23:50:38,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:50:38,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:50:38,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:50:38,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:50:38,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:50:22" (1/3) ... [2018-10-26 23:50:38,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c88c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:50:38, skipping insertion in model container [2018-10-26 23:50:38,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:50:25" (2/3) ... [2018-10-26 23:50:38,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c88c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:50:38, skipping insertion in model container [2018-10-26 23:50:38,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:50:38" (3/3) ... [2018-10-26 23:50:38,327 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label54_false-unreach-call.c [2018-10-26 23:50:38,338 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:50:38,348 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:50:38,365 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:50:38,423 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:50:38,423 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:50:38,424 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:50:38,424 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:50:38,424 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:50:38,424 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:50:38,424 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:50:38,424 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:50:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-26 23:50:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-26 23:50:38,487 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:50:38,488 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] [2018-10-26 23:50:38,491 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:50:38,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:50:38,497 INFO L82 PathProgramCache]: Analyzing trace with hash 840041364, now seen corresponding path program 1 times [2018-10-26 23:50:38,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:50:38,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:38,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:50:38,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:38,552 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:50:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:50:38,966 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:50:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:50:39,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:50:39,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:50:39,085 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:50:39,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:50:39,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:50:39,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:50:39,112 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-26 23:50:48,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:50:48,954 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-10-26 23:50:48,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:50:48,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-10-26 23:50:48,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:50:48,993 INFO L225 Difference]: With dead ends: 3097 [2018-10-26 23:50:48,993 INFO L226 Difference]: Without dead ends: 1975 [2018-10-26 23:50:49,004 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:50:49,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-10-26 23:50:49,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-10-26 23:50:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-10-26 23:50:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-10-26 23:50:49,202 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 34 [2018-10-26 23:50:49,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:50:49,204 INFO L481 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-10-26 23:50:49,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:50:49,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-10-26 23:50:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-26 23:50:49,216 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:50:49,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:50:49,217 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:50:49,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:50:49,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1233820516, now seen corresponding path program 1 times [2018-10-26 23:50:49,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:50:49,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:49,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:50:49,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:49,220 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:50:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:50:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:50:49,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:50:49,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 23:50:49,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:50:49,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 23:50:49,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 23:50:49,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:50:49,603 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-10-26 23:51:08,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:51:08,669 INFO L93 Difference]: Finished difference Result 5737 states and 9691 transitions. [2018-10-26 23:51:08,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 23:51:08,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2018-10-26 23:51:08,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:51:08,702 INFO L225 Difference]: With dead ends: 5737 [2018-10-26 23:51:08,702 INFO L226 Difference]: Without dead ends: 3769 [2018-10-26 23:51:08,709 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:51:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2018-10-26 23:51:08,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3685. [2018-10-26 23:51:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3685 states. [2018-10-26 23:51:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5659 transitions. [2018-10-26 23:51:08,834 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5659 transitions. Word has length 110 [2018-10-26 23:51:08,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:51:08,835 INFO L481 AbstractCegarLoop]: Abstraction has 3685 states and 5659 transitions. [2018-10-26 23:51:08,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 23:51:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5659 transitions. [2018-10-26 23:51:08,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-26 23:51:08,839 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:51:08,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:51:08,839 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:51:08,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:51:08,840 INFO L82 PathProgramCache]: Analyzing trace with hash 66371656, now seen corresponding path program 1 times [2018-10-26 23:51:08,840 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:51:08,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:08,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:51:08,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:08,841 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:51:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:51:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:51:09,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:51:09,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 23:51:09,039 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:51:09,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 23:51:09,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 23:51:09,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:51:09,041 INFO L87 Difference]: Start difference. First operand 3685 states and 5659 transitions. Second operand 5 states. [2018-10-26 23:51:40,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:51:40,635 INFO L93 Difference]: Finished difference Result 13664 states and 21759 transitions. [2018-10-26 23:51:40,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 23:51:40,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2018-10-26 23:51:40,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:51:40,705 INFO L225 Difference]: With dead ends: 13664 [2018-10-26 23:51:40,706 INFO L226 Difference]: Without dead ends: 9985 [2018-10-26 23:51:40,731 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:51:40,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2018-10-26 23:51:41,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9795. [2018-10-26 23:51:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9795 states. [2018-10-26 23:51:41,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 14500 transitions. [2018-10-26 23:51:41,068 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 14500 transitions. Word has length 124 [2018-10-26 23:51:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:51:41,069 INFO L481 AbstractCegarLoop]: Abstraction has 9795 states and 14500 transitions. [2018-10-26 23:51:41,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 23:51:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 14500 transitions. [2018-10-26 23:51:41,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-26 23:51:41,079 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:51:41,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:51:41,080 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:51:41,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:51:41,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1350853156, now seen corresponding path program 1 times [2018-10-26 23:51:41,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:51:41,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:41,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:51:41,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:41,086 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:51:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:51:41,440 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:51:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:51:41,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:51:41,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:51:41,635 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:51:41,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:51:41,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:51:41,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:51:41,637 INFO L87 Difference]: Start difference. First operand 9795 states and 14500 transitions. Second operand 6 states. [2018-10-26 23:51:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:51:55,535 INFO L93 Difference]: Finished difference Result 34191 states and 53804 transitions. [2018-10-26 23:51:55,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:51:55,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-26 23:51:55,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:51:55,671 INFO L225 Difference]: With dead ends: 34191 [2018-10-26 23:51:55,671 INFO L226 Difference]: Without dead ends: 24402 [2018-10-26 23:51:55,746 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:51:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24402 states. [2018-10-26 23:51:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24402 to 24169. [2018-10-26 23:51:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24169 states. [2018-10-26 23:51:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24169 states to 24169 states and 34071 transitions. [2018-10-26 23:51:56,428 INFO L78 Accepts]: Start accepts. Automaton has 24169 states and 34071 transitions. Word has length 142 [2018-10-26 23:51:56,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:51:56,429 INFO L481 AbstractCegarLoop]: Abstraction has 24169 states and 34071 transitions. [2018-10-26 23:51:56,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:51:56,430 INFO L276 IsEmpty]: Start isEmpty. Operand 24169 states and 34071 transitions. [2018-10-26 23:51:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-26 23:51:56,434 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:51:56,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:51:56,439 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:51:56,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:51:56,439 INFO L82 PathProgramCache]: Analyzing trace with hash -120384225, now seen corresponding path program 1 times [2018-10-26 23:51:56,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:51:56,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:56,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:51:56,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:56,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:51:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:51:56,746 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:51:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:51:57,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:51:57,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:51:57,144 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:51:57,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:51:57,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:51:57,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:51:57,146 INFO L87 Difference]: Start difference. First operand 24169 states and 34071 transitions. Second operand 6 states. [2018-10-26 23:52:08,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:52:08,874 INFO L93 Difference]: Finished difference Result 62339 states and 97859 transitions. [2018-10-26 23:52:08,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:52:08,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2018-10-26 23:52:08,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:52:09,075 INFO L225 Difference]: With dead ends: 62339 [2018-10-26 23:52:09,076 INFO L226 Difference]: Without dead ends: 38176 [2018-10-26 23:52:09,132 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:52:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38176 states. [2018-10-26 23:52:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38176 to 37979. [2018-10-26 23:52:10,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37979 states. [2018-10-26 23:52:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37979 states to 37979 states and 54437 transitions. [2018-10-26 23:52:10,242 INFO L78 Accepts]: Start accepts. Automaton has 37979 states and 54437 transitions. Word has length 153 [2018-10-26 23:52:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:52:10,243 INFO L481 AbstractCegarLoop]: Abstraction has 37979 states and 54437 transitions. [2018-10-26 23:52:10,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:52:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 37979 states and 54437 transitions. [2018-10-26 23:52:10,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-10-26 23:52:10,248 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:52:10,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:52:10,249 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:52:10,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:52:10,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1559015888, now seen corresponding path program 1 times [2018-10-26 23:52:10,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:52:10,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:52:10,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:52:10,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:52:10,251 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:52:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:52:10,572 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:52:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:52:10,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:52:10,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:52:10,975 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:52:10,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:52:10,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:52:10,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:52:10,977 INFO L87 Difference]: Start difference. First operand 37979 states and 54437 transitions. Second operand 6 states. [2018-10-26 23:52:22,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:52:22,436 INFO L93 Difference]: Finished difference Result 83934 states and 123832 transitions. [2018-10-26 23:52:22,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:52:22,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2018-10-26 23:52:22,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:52:22,668 INFO L225 Difference]: With dead ends: 83934 [2018-10-26 23:52:22,668 INFO L226 Difference]: Without dead ends: 45961 [2018-10-26 23:52:22,767 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:52:22,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45961 states. [2018-10-26 23:52:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45961 to 45859. [2018-10-26 23:52:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45859 states. [2018-10-26 23:52:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45859 states to 45859 states and 62658 transitions. [2018-10-26 23:52:23,699 INFO L78 Accepts]: Start accepts. Automaton has 45859 states and 62658 transitions. Word has length 181 [2018-10-26 23:52:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:52:23,699 INFO L481 AbstractCegarLoop]: Abstraction has 45859 states and 62658 transitions. [2018-10-26 23:52:23,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:52:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 45859 states and 62658 transitions. [2018-10-26 23:52:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-10-26 23:52:23,714 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:52:23,715 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 23:52:23,715 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:52:23,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:52:23,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1763920798, now seen corresponding path program 1 times [2018-10-26 23:52:23,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:52:23,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:52:23,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:52:23,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:52:23,717 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:52:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:52:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:52:24,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:52:24,105 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:52:24,106 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 232 with the following transitions: [2018-10-26 23:52:24,108 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2799], [2801], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3358], [3361], [3365], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-26 23:52:24,194 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:52:24,194 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:52:30,984 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:52:30,986 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-26 23:52:30,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:52:30,998 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:52:35,355 INFO L227 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 71.4% of their original sizes. [2018-10-26 23:52:35,356 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:52:37,284 INFO L415 sIntCurrentIteration]: We unified 230 AI predicates to 230 [2018-10-26 23:52:37,284 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:52:37,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:52:37,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-10-26 23:52:37,286 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:52:37,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-26 23:52:37,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-26 23:52:37,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-26 23:52:37,287 INFO L87 Difference]: Start difference. First operand 45859 states and 62658 transitions. Second operand 11 states. [2018-10-26 23:53:23,430 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-26 23:54:07,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 23:54:07,127 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 23:54:07,133 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 23:54:07,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:54:07 BoogieIcfgContainer [2018-10-26 23:54:07,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:54:07,134 INFO L168 Benchmark]: Toolchain (without parser) took 224138.93 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -683.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-26 23:54:07,135 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. [2018-10-26 23:54:07,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2509.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-26 23:54:07,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 605.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-26 23:54:07,138 INFO L168 Benchmark]: Boogie Preprocessor took 398.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2018-10-26 23:54:07,138 INFO L168 Benchmark]: RCFGBuilder took 11804.90 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 190.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 15.8 MB). Peak memory consumption was 668.0 MB. Max. memory is 7.1 GB. [2018-10-26 23:54:07,139 INFO L168 Benchmark]: TraceAbstraction took 208815.47 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-26 23:54:07,145 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 2509.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 605.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 398.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11804.90 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 190.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 15.8 MB). Peak memory consumption was 668.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208815.47 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 93). Cancelled while BasicCegarLoop was constructing difference of abstraction (45859states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (1931 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 208.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 188.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2981 SDtfs, 24214 SDslu, 3086 SDs, 0 SdLazy, 34153 SolverSat, 8723 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 142.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 287 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45859occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9959598662207357 AbsIntWeakeningRatio, 0.13043478260869565 AbsIntAvgWeakeningVarsNumRemoved, 39.108695652173914 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 807 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 975 NumberOfCodeBlocks, 975 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 968 ConstructedInterpolants, 0 QuantifiedInterpolants, 577032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 263/265 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown