java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label07_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:37:08,267 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:37:08,269 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:37:08,283 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:37:08,283 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:37:08,285 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:37:08,287 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:37:08,290 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:37:08,294 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:37:08,295 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:37:08,296 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:37:08,296 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:37:08,297 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:37:08,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:37:08,310 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:37:08,311 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:37:08,311 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:37:08,315 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:37:08,319 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:37:08,321 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:37:08,323 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:37:08,325 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:37:08,327 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:37:08,340 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:37:08,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:37:08,364 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:37:08,365 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:37:08,365 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:37:08,365 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:37:08,366 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:37:08,366 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:37:08,366 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:37:08,366 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:37:08,367 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:37:08,367 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:37:08,367 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:37:08,368 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:37:08,368 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:37:08,368 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:37:08,371 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:37:08,371 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:37:08,371 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:37:08,371 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:37:08,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:37:08,372 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:37:08,372 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:37:08,372 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:37:08,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:37:08,373 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:37:08,373 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:37:08,373 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:37:08,373 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:37:08,373 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:37:08,374 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:37:08,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:37:08,374 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:37:08,374 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:37:08,375 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:37:08,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:37:08,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:37:08,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:37:08,442 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:37:08,442 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:37:08,443 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label07_false-unreach-call.c [2018-11-07 00:37:08,508 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b1f28c9/4d4e1c4e0c8e4d56aaad90a33e3cb269/FLAG54ab9b68e [2018-11-07 00:37:09,182 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:37:09,184 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label07_false-unreach-call.c [2018-11-07 00:37:09,215 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b1f28c9/4d4e1c4e0c8e4d56aaad90a33e3cb269/FLAG54ab9b68e [2018-11-07 00:37:09,231 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b1f28c9/4d4e1c4e0c8e4d56aaad90a33e3cb269 [2018-11-07 00:37:09,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:37:09,246 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:37:09,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:37:09,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:37:09,251 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:37:09,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:37:09" (1/1) ... [2018-11-07 00:37:09,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f3e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:09, skipping insertion in model container [2018-11-07 00:37:09,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:37:09" (1/1) ... [2018-11-07 00:37:09,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:37:09,389 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:37:10,444 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:37:10,453 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:37:10,851 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:37:10,873 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:37:10,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10 WrapperNode [2018-11-07 00:37:10,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:37:10,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:37:10,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:37:10,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:37:10,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:37:11,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:37:11,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:37:11,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:37:11,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... [2018-11-07 00:37:11,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:37:11,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:37:11,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:37:11,366 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:37:11,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:37:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:37:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:37:11,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:37:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:37:11,436 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:37:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:37:11,437 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:37:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:37:11,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:37:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:37:11,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:37:19,949 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:37:19,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:37:19 BoogieIcfgContainer [2018-11-07 00:37:19,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:37:19,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:37:19,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:37:19,954 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:37:19,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:37:09" (1/3) ... [2018-11-07 00:37:19,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51abc5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:37:19, skipping insertion in model container [2018-11-07 00:37:19,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:37:10" (2/3) ... [2018-11-07 00:37:19,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51abc5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:37:19, skipping insertion in model container [2018-11-07 00:37:19,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:37:19" (3/3) ... [2018-11-07 00:37:19,957 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label07_false-unreach-call.c [2018-11-07 00:37:19,966 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:37:19,974 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:37:19,989 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:37:20,032 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:37:20,033 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:37:20,033 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:37:20,033 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:37:20,033 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:37:20,033 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:37:20,033 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:37:20,034 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:37:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 00:37:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-07 00:37:20,096 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:37:20,097 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] [2018-11-07 00:37:20,100 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:37:20,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:37:20,106 INFO L82 PathProgramCache]: Analyzing trace with hash -87983404, now seen corresponding path program 1 times [2018-11-07 00:37:20,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:37:20,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:20,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:37:20,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:20,156 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:37:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:37:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:37:20,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:37:20,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:37:20,647 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:37:20,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:37:20,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:37:20,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:37:20,703 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 00:37:29,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:37:29,957 INFO L93 Difference]: Finished difference Result 2125 states and 3954 transitions. [2018-11-07 00:37:29,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:37:29,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-07 00:37:29,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:37:29,991 INFO L225 Difference]: With dead ends: 2125 [2018-11-07 00:37:29,991 INFO L226 Difference]: Without dead ends: 1515 [2018-11-07 00:37:30,000 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:37:30,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2018-11-07 00:37:30,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1043. [2018-11-07 00:37:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-07 00:37:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1647 transitions. [2018-11-07 00:37:30,130 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1647 transitions. Word has length 34 [2018-11-07 00:37:30,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:37:30,131 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 1647 transitions. [2018-11-07 00:37:30,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:37:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1647 transitions. [2018-11-07 00:37:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-07 00:37:30,136 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:37:30,137 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] [2018-11-07 00:37:30,137 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:37:30,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:37:30,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1635059426, now seen corresponding path program 1 times [2018-11-07 00:37:30,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:37:30,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:30,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:37:30,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:30,139 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:37:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:37:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:37:30,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:37:30,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:37:30,526 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:37:30,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:37:30,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:37:30,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:37:30,529 INFO L87 Difference]: Start difference. First operand 1043 states and 1647 transitions. Second operand 5 states. [2018-11-07 00:37:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:37:37,148 INFO L93 Difference]: Finished difference Result 3017 states and 4847 transitions. [2018-11-07 00:37:37,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:37:37,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2018-11-07 00:37:37,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:37:37,172 INFO L225 Difference]: With dead ends: 3017 [2018-11-07 00:37:37,172 INFO L226 Difference]: Without dead ends: 1980 [2018-11-07 00:37:37,177 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:37:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2018-11-07 00:37:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1954. [2018-11-07 00:37:37,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-11-07 00:37:37,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2892 transitions. [2018-11-07 00:37:37,278 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2892 transitions. Word has length 106 [2018-11-07 00:37:37,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:37:37,279 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2892 transitions. [2018-11-07 00:37:37,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:37:37,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2892 transitions. [2018-11-07 00:37:37,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-07 00:37:37,287 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:37:37,287 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] [2018-11-07 00:37:37,288 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:37:37,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:37:37,288 INFO L82 PathProgramCache]: Analyzing trace with hash -697579286, now seen corresponding path program 1 times [2018-11-07 00:37:37,288 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:37:37,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:37,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:37:37,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:37,290 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:37:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:37:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:37:37,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:37:37,601 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:37:37,602 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-11-07 00:37:37,604 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [882], [884], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 00:37:37,701 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:37:37,702 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:37:39,200 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:37:57,636 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:37:57,637 INFO L272 AbstractInterpreter]: Visited 83 different actions 543 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 00:37:57,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:37:57,653 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:37:57,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:37:57,653 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:37:57,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:37:57,667 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:37:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:37:57,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:38:00,077 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-11-07 00:38:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:38:01,491 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:38:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:38:01,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 00:38:01,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 11 [2018-11-07 00:38:01,938 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:38:01,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:38:01,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:38:01,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-11-07 00:38:01,939 INFO L87 Difference]: Start difference. First operand 1954 states and 2892 transitions. Second operand 3 states. [2018-11-07 00:38:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:38:08,087 INFO L93 Difference]: Finished difference Result 4803 states and 7423 transitions. [2018-11-07 00:38:08,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:38:08,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2018-11-07 00:38:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:38:08,106 INFO L225 Difference]: With dead ends: 4803 [2018-11-07 00:38:08,106 INFO L226 Difference]: Without dead ends: 2855 [2018-11-07 00:38:08,117 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 214 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-11-07 00:38:08,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2018-11-07 00:38:08,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2852. [2018-11-07 00:38:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2018-11-07 00:38:08,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4198 transitions. [2018-11-07 00:38:08,196 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4198 transitions. Word has length 109 [2018-11-07 00:38:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:38:08,197 INFO L480 AbstractCegarLoop]: Abstraction has 2852 states and 4198 transitions. [2018-11-07 00:38:08,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:38:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4198 transitions. [2018-11-07 00:38:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-07 00:38:08,200 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:38:08,200 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] [2018-11-07 00:38:08,202 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:38:08,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:38:08,202 INFO L82 PathProgramCache]: Analyzing trace with hash 666938066, now seen corresponding path program 1 times [2018-11-07 00:38:08,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:38:08,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:38:08,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:38:08,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:38:08,206 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:38:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:38:08,478 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:38:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:38:08,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:38:08,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:38:08,663 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:38:08,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:38:08,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:38:08,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:38:08,664 INFO L87 Difference]: Start difference. First operand 2852 states and 4198 transitions. Second operand 6 states. [2018-11-07 00:38:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:38:13,042 INFO L93 Difference]: Finished difference Result 7097 states and 10487 transitions. [2018-11-07 00:38:13,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:38:13,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-11-07 00:38:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:38:13,068 INFO L225 Difference]: With dead ends: 7097 [2018-11-07 00:38:13,069 INFO L226 Difference]: Without dead ends: 4251 [2018-11-07 00:38:13,081 INFO L604 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 [2018-11-07 00:38:13,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2018-11-07 00:38:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4216. [2018-11-07 00:38:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4216 states. [2018-11-07 00:38:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4216 states to 4216 states and 5447 transitions. [2018-11-07 00:38:13,207 INFO L78 Accepts]: Start accepts. Automaton has 4216 states and 5447 transitions. Word has length 114 [2018-11-07 00:38:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:38:13,208 INFO L480 AbstractCegarLoop]: Abstraction has 4216 states and 5447 transitions. [2018-11-07 00:38:13,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:38:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4216 states and 5447 transitions. [2018-11-07 00:38:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-11-07 00:38:13,212 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:38:13,213 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:38:13,213 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:38:13,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:38:13,213 INFO L82 PathProgramCache]: Analyzing trace with hash -807827619, now seen corresponding path program 1 times [2018-11-07 00:38:13,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:38:13,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:38:13,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:38:13,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:38:13,215 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:38:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:38:13,585 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:38:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 99 proven. 35 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-07 00:38:14,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:38:14,188 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:38:14,189 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-11-07 00:38:14,189 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [882], [884], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 00:38:14,195 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:38:14,195 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:38:16,627 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:38:37,452 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:38:37,452 INFO L272 AbstractInterpreter]: Visited 97 different actions 561 times. Merged at 7 different actions 35 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 00:38:37,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:38:37,458 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:38:37,459 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:38:37,459 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:38:37,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:38:37,491 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:38:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:38:37,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:38:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 00:38:37,644 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:38:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 00:38:37,760 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:38:37,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 00:38:37,760 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:38:37,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:38:37,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:38:37,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:38:37,763 INFO L87 Difference]: Start difference. First operand 4216 states and 5447 transitions. Second operand 3 states. [2018-11-07 00:38:40,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:38:40,569 INFO L93 Difference]: Finished difference Result 8426 states and 10906 transitions. [2018-11-07 00:38:40,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:38:40,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2018-11-07 00:38:40,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:38:40,592 INFO L225 Difference]: With dead ends: 8426 [2018-11-07 00:38:40,592 INFO L226 Difference]: Without dead ends: 4216 [2018-11-07 00:38:40,610 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 418 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:38:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4216 states. [2018-11-07 00:38:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4216 to 4216. [2018-11-07 00:38:40,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4216 states. [2018-11-07 00:38:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4216 states to 4216 states and 5183 transitions. [2018-11-07 00:38:40,718 INFO L78 Accepts]: Start accepts. Automaton has 4216 states and 5183 transitions. Word has length 209 [2018-11-07 00:38:40,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:38:40,719 INFO L480 AbstractCegarLoop]: Abstraction has 4216 states and 5183 transitions. [2018-11-07 00:38:40,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:38:40,719 INFO L276 IsEmpty]: Start isEmpty. Operand 4216 states and 5183 transitions. [2018-11-07 00:38:40,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-11-07 00:38:40,723 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:38:40,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:38:40,724 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:38:40,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:38:40,724 INFO L82 PathProgramCache]: Analyzing trace with hash 158332413, now seen corresponding path program 1 times [2018-11-07 00:38:40,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:38:40,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:38:40,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:38:40,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:38:40,726 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:38:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:38:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 57 proven. 61 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-07 00:38:41,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:38:41,097 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:38:41,098 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-11-07 00:38:41,098 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [882], [884], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1211], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 00:38:41,104 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:38:41,104 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:38:42,666 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:38:42,823 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:38:42,823 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 00:38:42,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:38:42,827 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:38:44,679 INFO L227 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 75.36% of their original sizes. [2018-11-07 00:38:44,679 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:38:45,142 INFO L415 sIntCurrentIteration]: We unified 215 AI predicates to 215 [2018-11-07 00:38:45,143 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:38:45,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:38:45,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2018-11-07 00:38:45,144 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:38:45,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:38:45,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:38:45,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:38:45,145 INFO L87 Difference]: Start difference. First operand 4216 states and 5183 transitions. Second operand 8 states. Received shutdown request... [2018-11-07 00:40:52,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:40:52,030 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:40:52,036 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:40:52,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:40:52 BoogieIcfgContainer [2018-11-07 00:40:52,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:40:52,038 INFO L168 Benchmark]: Toolchain (without parser) took 222793.16 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -753.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 00:40:52,039 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-07 00:40:52,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1627.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:40:52,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 279.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -968.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:40:52,041 INFO L168 Benchmark]: Boogie Preprocessor took 210.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:40:52,042 INFO L168 Benchmark]: RCFGBuilder took 8584.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 455.3 MB). Peak memory consumption was 455.3 MB. Max. memory is 7.1 GB. [2018-11-07 00:40:52,043 INFO L168 Benchmark]: TraceAbstraction took 212085.79 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.2 GB in the end (delta: -391.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 00:40:52,049 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 1627.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 279.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -968.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 210.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8584.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 455.3 MB). Peak memory consumption was 455.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212085.79 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.2 GB in the end (delta: -391.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 89). Cancelled while BasicCegarLoop was constructing difference of abstraction (4216states) and FLOYD_HOARE automaton (currently 8 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (6717 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 212.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 156.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2998 SDtfs, 6891 SDslu, 1423 SDs, 0 SdLazy, 11794 SolverSat, 2825 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 119.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 897 GetRequests, 849 SyntacticMatches, 10 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4216occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 45.0s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9954919499105545 AbsIntWeakeningRatio, 0.12558139534883722 AbsIntAvgWeakeningVarsNumRemoved, 1042.9441860465117 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 536 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 1106 NumberOfCodeBlocks, 1106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1414 ConstructedInterpolants, 30 QuantifiedInterpolants, 773814 SizeOfPredicates, 5 NumberOfNonLiveVariables, 660 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 538/684 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown