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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:21:00,760 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:21:00,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:21:00,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:21:00,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:21:00,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:21:00,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:21:00,782 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:21:00,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:21:00,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:21:00,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:21:00,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:21:00,787 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:21:00,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:21:00,789 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:21:00,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:21:00,791 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:21:00,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:21:00,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:21:00,799 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:21:00,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:21:00,808 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:21:00,812 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:21:00,813 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:21:00,813 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:21:00,814 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:21:00,818 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:21:00,819 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:21:00,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:21:00,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:21:00,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:21:00,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:21:00,824 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:21:00,824 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:21:00,827 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:21:00,828 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:21:00,828 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 19:21:00,845 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:21:00,845 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:21:00,846 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:21:00,846 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:21:00,846 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:21:00,846 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:21:00,846 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:21:00,847 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:21:00,847 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:21:00,847 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:21:00,847 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:21:00,847 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:21:00,848 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:21:00,848 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:21:00,848 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:21:00,849 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:21:00,849 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:21:00,849 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:21:00,849 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:21:00,849 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:21:00,850 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:21:00,850 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:21:00,850 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:21:00,850 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:21:00,850 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:21:00,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:21:00,851 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:21:00,851 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:21:00,851 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:21:00,851 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:21:00,852 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:21:00,852 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:21:00,852 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:21:00,852 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:21:00,852 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:21:00,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:21:00,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:21:00,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:21:00,935 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:21:00,935 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:21:00,936 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label23_true-unreach-call.c [2018-11-12 19:21:00,986 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15a1ef0a2/eb674a2b1f7f435e8ce40a1e8d151154/FLAGe9830e0bc [2018-11-12 19:21:01,671 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:21:01,672 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label23_true-unreach-call.c [2018-11-12 19:21:01,695 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15a1ef0a2/eb674a2b1f7f435e8ce40a1e8d151154/FLAGe9830e0bc [2018-11-12 19:21:01,715 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15a1ef0a2/eb674a2b1f7f435e8ce40a1e8d151154 [2018-11-12 19:21:01,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:21:01,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:21:01,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:21:01,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:21:01,734 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:21:01,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:21:01" (1/1) ... [2018-11-12 19:21:01,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f53b6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:01, skipping insertion in model container [2018-11-12 19:21:01,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:21:01" (1/1) ... [2018-11-12 19:21:01,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:21:01,838 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:21:02,656 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:21:02,661 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:21:02,893 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:21:02,916 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:21:02,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02 WrapperNode [2018-11-12 19:21:02,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:21:02,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:21:02,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:21:02,918 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:21:03,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:21:03,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:21:03,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:21:03,142 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:21:03,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (1/1) ... [2018-11-12 19:21:03,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:21:03,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:21:03,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:21:03,278 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:21:03,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (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 [2018-11-12 19:21:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:21:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:21:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:21:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:21:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:21:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:21:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:21:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:21:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:21:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:21:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:21:10,394 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:21:10,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:21:10 BoogieIcfgContainer [2018-11-12 19:21:10,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:21:10,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:21:10,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:21:10,400 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:21:10,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:21:01" (1/3) ... [2018-11-12 19:21:10,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766ce1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:21:10, skipping insertion in model container [2018-11-12 19:21:10,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:21:02" (2/3) ... [2018-11-12 19:21:10,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766ce1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:21:10, skipping insertion in model container [2018-11-12 19:21:10,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:21:10" (3/3) ... [2018-11-12 19:21:10,404 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label23_true-unreach-call.c [2018-11-12 19:21:10,415 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:21:10,424 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:21:10,442 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:21:10,483 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:21:10,483 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:21:10,483 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:21:10,484 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:21:10,484 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:21:10,484 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:21:10,484 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:21:10,484 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:21:10,519 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 19:21:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-12 19:21:10,529 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:21:10,531 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:21:10,534 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:21:10,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:21:10,541 INFO L82 PathProgramCache]: Analyzing trace with hash 265185508, now seen corresponding path program 1 times [2018-11-12 19:21:10,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:21:10,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:10,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:21:10,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:10,605 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:21:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:21:10,999 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:21:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:21:11,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:21:11,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:21:11,103 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:21:11,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:21:11,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:21:11,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:21:11,131 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 19:21:14,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:21:14,533 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 19:21:14,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:21:14,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-12 19:21:14,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:21:14,559 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 19:21:14,559 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 19:21:14,570 INFO L604 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 [2018-11-12 19:21:14,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 19:21:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 19:21:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 19:21:14,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1329 transitions. [2018-11-12 19:21:14,678 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1329 transitions. Word has length 38 [2018-11-12 19:21:14,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:21:14,679 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1329 transitions. [2018-11-12 19:21:14,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:21:14,680 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1329 transitions. [2018-11-12 19:21:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-12 19:21:14,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:21:14,691 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:21:14,691 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:21:14,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:21:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1425782298, now seen corresponding path program 1 times [2018-11-12 19:21:14,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:21:14,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:14,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:21:14,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:14,694 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:21:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:21:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:21:15,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:21:15,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:21:15,099 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:21:15,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:21:15,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:21:15,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:21:15,102 INFO L87 Difference]: Start difference. First operand 744 states and 1329 transitions. Second operand 6 states. [2018-11-12 19:21:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:21:21,397 INFO L93 Difference]: Finished difference Result 2183 states and 3908 transitions. [2018-11-12 19:21:21,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:21:21,399 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-11-12 19:21:21,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:21:21,412 INFO L225 Difference]: With dead ends: 2183 [2018-11-12 19:21:21,412 INFO L226 Difference]: Without dead ends: 1445 [2018-11-12 19:21:21,418 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:21:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2018-11-12 19:21:21,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1424. [2018-11-12 19:21:21,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1424 states. [2018-11-12 19:21:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2239 transitions. [2018-11-12 19:21:21,493 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2239 transitions. Word has length 146 [2018-11-12 19:21:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:21:21,494 INFO L480 AbstractCegarLoop]: Abstraction has 1424 states and 2239 transitions. [2018-11-12 19:21:21,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:21:21,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2239 transitions. [2018-11-12 19:21:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-12 19:21:21,500 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:21:21,500 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:21:21,500 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:21:21,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:21:21,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1113937093, now seen corresponding path program 1 times [2018-11-12 19:21:21,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:21:21,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:21,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:21:21,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:21,505 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:21:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:21:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:21:21,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:21:21,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:21:21,751 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:21:21,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:21:21,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:21:21,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:21:21,753 INFO L87 Difference]: Start difference. First operand 1424 states and 2239 transitions. Second operand 6 states. [2018-11-12 19:21:25,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:21:25,623 INFO L93 Difference]: Finished difference Result 3902 states and 6351 transitions. [2018-11-12 19:21:25,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:21:25,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-12 19:21:25,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:21:25,645 INFO L225 Difference]: With dead ends: 3902 [2018-11-12 19:21:25,645 INFO L226 Difference]: Without dead ends: 2484 [2018-11-12 19:21:25,651 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:21:25,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2018-11-12 19:21:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2474. [2018-11-12 19:21:25,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2474 states. [2018-11-12 19:21:25,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3744 transitions. [2018-11-12 19:21:25,731 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3744 transitions. Word has length 149 [2018-11-12 19:21:25,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:21:25,731 INFO L480 AbstractCegarLoop]: Abstraction has 2474 states and 3744 transitions. [2018-11-12 19:21:25,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:21:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3744 transitions. [2018-11-12 19:21:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-11-12 19:21:25,742 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:21:25,743 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:21:25,743 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:21:25,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:21:25,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1340726665, now seen corresponding path program 1 times [2018-11-12 19:21:25,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:21:25,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:25,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:21:25,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:25,745 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:21:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:21:26,006 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:21:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 62 proven. 106 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:21:26,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:21:26,085 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:21:26,085 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-11-12 19:21:26,088 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [383], [385], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:21:26,143 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:21:26,143 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:21:26,909 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:21:26,913 INFO L272 AbstractInterpreter]: Visited 121 different actions 121 times. Never merged. Never widened. Performed 2032 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2032 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:21:26,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:21:26,960 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:21:27,972 INFO L227 lantSequenceWeakener]: Weakened 243 states. On average, predicates are now at 77.75% of their original sizes. [2018-11-12 19:21:27,973 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:21:29,454 INFO L415 sIntCurrentIteration]: We unified 264 AI predicates to 264 [2018-11-12 19:21:29,455 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:21:29,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:21:29,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 19:21:29,456 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:21:29,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:21:29,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:21:29,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:21:29,457 INFO L87 Difference]: Start difference. First operand 2474 states and 3744 transitions. Second operand 10 states. [2018-11-12 19:21:34,705 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:22:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:04,670 INFO L93 Difference]: Finished difference Result 5285 states and 7974 transitions. [2018-11-12 19:22:04,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:22:04,671 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 265 [2018-11-12 19:22:04,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:04,686 INFO L225 Difference]: With dead ends: 5285 [2018-11-12 19:22:04,686 INFO L226 Difference]: Without dead ends: 2817 [2018-11-12 19:22:04,695 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 268 GetRequests, 213 SyntacticMatches, 43 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 19:22:04,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2018-11-12 19:22:04,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2812. [2018-11-12 19:22:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2812 states. [2018-11-12 19:22:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 4089 transitions. [2018-11-12 19:22:04,764 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 4089 transitions. Word has length 265 [2018-11-12 19:22:04,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:04,765 INFO L480 AbstractCegarLoop]: Abstraction has 2812 states and 4089 transitions. [2018-11-12 19:22:04,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:22:04,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 4089 transitions. [2018-11-12 19:22:04,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-11-12 19:22:04,773 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:04,774 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:04,774 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:04,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:04,775 INFO L82 PathProgramCache]: Analyzing trace with hash -251720153, now seen corresponding path program 1 times [2018-11-12 19:22:04,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:04,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:04,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:04,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:04,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 188 proven. 110 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-12 19:22:05,231 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:22:05,232 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:22:05,232 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 358 with the following transitions: [2018-11-12 19:22:05,232 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [383], [385], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:22:05,237 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:22:05,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:22:05,303 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:22:05,780 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:22:05,780 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Performed 5053 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5053 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:22:05,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:05,819 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:22:06,570 INFO L227 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 77.67% of their original sizes. [2018-11-12 19:22:06,570 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:22:08,290 INFO L415 sIntCurrentIteration]: We unified 356 AI predicates to 356 [2018-11-12 19:22:08,290 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:22:08,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:22:08,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 19:22:08,291 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:08,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:22:08,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:22:08,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:22:08,295 INFO L87 Difference]: Start difference. First operand 2812 states and 4089 transitions. Second operand 18 states. [2018-11-12 19:22:49,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:49,320 INFO L93 Difference]: Finished difference Result 6454 states and 9413 transitions. [2018-11-12 19:22:49,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-12 19:22:49,320 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 357 [2018-11-12 19:22:49,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:49,341 INFO L225 Difference]: With dead ends: 6454 [2018-11-12 19:22:49,341 INFO L226 Difference]: Without dead ends: 3986 [2018-11-12 19:22:49,351 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 366 GetRequests, 325 SyntacticMatches, 15 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2018-11-12 19:22:49,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2018-11-12 19:22:49,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3756. [2018-11-12 19:22:49,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3756 states. [2018-11-12 19:22:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 5082 transitions. [2018-11-12 19:22:49,443 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 5082 transitions. Word has length 357 [2018-11-12 19:22:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:49,444 INFO L480 AbstractCegarLoop]: Abstraction has 3756 states and 5082 transitions. [2018-11-12 19:22:49,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:22:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 5082 transitions. [2018-11-12 19:22:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-11-12 19:22:49,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:49,453 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:49,453 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:49,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:49,454 INFO L82 PathProgramCache]: Analyzing trace with hash -363456465, now seen corresponding path program 1 times [2018-11-12 19:22:49,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:49,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:49,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:49,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:49,455 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:49,833 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-12 19:22:50,288 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 19:22:50,755 WARN L179 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-12 19:22:51,391 WARN L179 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-11-12 19:22:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 212 proven. 110 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-12 19:22:52,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:22:52,103 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:22:52,103 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-11-12 19:22:52,104 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [383], [385], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:22:52,108 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:22:52,108 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:22:52,838 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:22:53,111 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:22:53,112 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Performed 7025 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7025 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:22:53,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:53,130 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:22:53,753 INFO L227 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 77.67% of their original sizes. [2018-11-12 19:22:53,753 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:22:54,124 INFO L415 sIntCurrentIteration]: We unified 392 AI predicates to 392 [2018-11-12 19:22:54,124 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:22:54,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:22:54,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [13] total 29 [2018-11-12 19:22:54,124 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:54,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:22:54,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:22:54,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:22:54,126 INFO L87 Difference]: Start difference. First operand 3756 states and 5082 transitions. Second operand 18 states. [2018-11-12 19:23:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:23:25,285 INFO L93 Difference]: Finished difference Result 7459 states and 10494 transitions. [2018-11-12 19:23:25,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-12 19:23:25,285 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 393 [2018-11-12 19:23:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:23:25,306 INFO L225 Difference]: With dead ends: 7459 [2018-11-12 19:23:25,307 INFO L226 Difference]: Without dead ends: 4647 [2018-11-12 19:23:25,317 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 401 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-11-12 19:23:25,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4647 states. [2018-11-12 19:23:25,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4647 to 4415. [2018-11-12 19:23:25,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4415 states. [2018-11-12 19:23:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 5781 transitions. [2018-11-12 19:23:25,433 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 5781 transitions. Word has length 393 [2018-11-12 19:23:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:23:25,434 INFO L480 AbstractCegarLoop]: Abstraction has 4415 states and 5781 transitions. [2018-11-12 19:23:25,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:23:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 5781 transitions. [2018-11-12 19:23:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2018-11-12 19:23:25,448 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:23:25,448 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:23:25,448 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:23:25,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:25,449 INFO L82 PathProgramCache]: Analyzing trace with hash -608361969, now seen corresponding path program 1 times [2018-11-12 19:23:25,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:23:25,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:25,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:23:25,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:25,450 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:23:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:23:26,121 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-11-12 19:23:26,309 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-11-12 19:23:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 203 proven. 123 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-11-12 19:23:27,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:23:27,384 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:23:27,384 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 506 with the following transitions: [2018-11-12 19:23:27,384 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [383], [385], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:23:27,388 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:23:27,389 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:23:27,899 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:23:27,900 INFO L272 AbstractInterpreter]: Visited 249 different actions 492 times. Merged at 5 different actions 5 times. Never widened. Performed 6296 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6296 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:23:27,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:27,942 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:23:28,491 INFO L227 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 77.82% of their original sizes. [2018-11-12 19:23:28,491 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:23:30,290 INFO L415 sIntCurrentIteration]: We unified 504 AI predicates to 504 [2018-11-12 19:23:30,290 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:23:30,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:23:30,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [8] total 24 [2018-11-12 19:23:30,291 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:23:30,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:23:30,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:23:30,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:23:30,292 INFO L87 Difference]: Start difference. First operand 4415 states and 5781 transitions. Second operand 18 states. [2018-11-12 19:23:32,514 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:24:03,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:03,425 INFO L93 Difference]: Finished difference Result 8208 states and 11190 transitions. [2018-11-12 19:24:03,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 19:24:03,426 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 505 [2018-11-12 19:24:03,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:03,444 INFO L225 Difference]: With dead ends: 8208 [2018-11-12 19:24:03,444 INFO L226 Difference]: Without dead ends: 5051 [2018-11-12 19:24:03,454 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 520 GetRequests, 422 SyntacticMatches, 66 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 19:24:03,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2018-11-12 19:24:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 5046. [2018-11-12 19:24:03,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5046 states. [2018-11-12 19:24:03,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 6446 transitions. [2018-11-12 19:24:03,575 INFO L78 Accepts]: Start accepts. Automaton has 5046 states and 6446 transitions. Word has length 505 [2018-11-12 19:24:03,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:03,576 INFO L480 AbstractCegarLoop]: Abstraction has 5046 states and 6446 transitions. [2018-11-12 19:24:03,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:24:03,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5046 states and 6446 transitions. [2018-11-12 19:24:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2018-11-12 19:24:03,591 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:03,592 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:24:03,592 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:03,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:03,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1926535583, now seen corresponding path program 1 times [2018-11-12 19:24:03,593 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:03,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:03,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:03,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:03,594 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:04,020 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:24:04,305 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 99 proven. 260 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-12 19:24:04,306 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:04,306 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:24:04,306 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 514 with the following transitions: [2018-11-12 19:24:04,306 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [383], [385], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:24:04,311 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:24:04,311 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:24:06,979 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:24:06,979 INFO L272 AbstractInterpreter]: Visited 257 different actions 2516 times. Merged at 5 different actions 45 times. Widened at 1 different actions 5 times. Performed 44463 root evaluator evaluations with a maximum evaluation depth of 6. Performed 44463 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:24:06,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:06,986 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:24:07,677 INFO L227 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 79.43% of their original sizes. [2018-11-12 19:24:07,678 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:24:08,165 INFO L415 sIntCurrentIteration]: We unified 512 AI predicates to 512 [2018-11-12 19:24:08,165 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:24:08,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:24:08,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-12 19:24:08,166 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:24:08,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-12 19:24:08,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-12 19:24:08,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2018-11-12 19:24:08,167 INFO L87 Difference]: Start difference. First operand 5046 states and 6446 transitions. Second operand 22 states. [2018-11-12 19:24:10,728 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:24:43,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-12 19:24:43,564 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:24:43,570 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:24:43,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:24:43 BoogieIcfgContainer [2018-11-12 19:24:43,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:24:43,572 INFO L168 Benchmark]: Toolchain (without parser) took 221844.24 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 317.1 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-11-12 19:24:43,574 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-12 19:24:43,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1186.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:24:43,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 223.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -862.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:24:43,576 INFO L168 Benchmark]: Boogie Preprocessor took 135.81 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:24:43,577 INFO L168 Benchmark]: RCFGBuilder took 7117.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 7.1 GB. [2018-11-12 19:24:43,578 INFO L168 Benchmark]: TraceAbstraction took 213174.89 ms. Allocated memory was 2.3 GB in the beginning and 4.6 GB in the end (delta: 2.3 GB). Free memory was 2.0 GB in the beginning and 1.1 GB in the end (delta: 842.7 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-12 19:24:43,584 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1186.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 223.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -862.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.81 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 7117.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213174.89 ms. Allocated memory was 2.3 GB in the beginning and 4.6 GB in the end (delta: 2.3 GB). Free memory was 2.0 GB in the beginning and 1.1 GB in the end (delta: 842.7 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 100). Cancelled while BasicCegarLoop was constructing difference of abstraction (5046states) and FLOYD_HOARE automaton (currently 30 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (8244 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 213.0s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 189.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2342 SDtfs, 21036 SDslu, 1986 SDs, 0 SdLazy, 29694 SolverSat, 3618 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2103 GetRequests, 1834 SyntacticMatches, 128 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5046occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.7s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9977430828183347 AbsIntWeakeningRatio, 0.07593688362919132 AbsIntAvgWeakeningVarsNumRemoved, 10.319033530571993 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 503 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2366 NumberOfCodeBlocks, 2366 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2358 ConstructedInterpolants, 0 QuantifiedInterpolants, 5811889 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 1207/1916 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown