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/Problem15_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:13:57,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:13:57,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:13:58,006 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:13:58,007 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:13:58,008 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:13:58,009 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:13:58,011 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:13:58,013 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:13:58,014 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:13:58,015 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:13:58,015 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:13:58,016 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:13:58,017 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:13:58,018 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:13:58,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:13:58,020 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:13:58,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:13:58,024 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:13:58,025 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:13:58,026 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:13:58,028 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:13:58,031 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:13:58,031 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:13:58,031 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:13:58,032 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:13:58,034 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:13:58,035 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:13:58,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:13:58,037 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:13:58,037 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:13:58,038 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:13:58,038 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:13:58,039 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:13:58,040 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:13:58,041 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:13:58,041 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 19:13:58,070 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:13:58,071 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:13:58,072 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:13:58,072 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:13:58,073 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:13:58,073 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:13:58,073 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:13:58,073 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:13:58,074 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:13:58,074 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:13:58,075 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:13:58,075 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:13:58,075 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:13:58,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:13:58,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:13:58,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:13:58,076 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:13:58,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:13:58,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:13:58,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:13:58,077 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:13:58,077 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:13:58,078 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:13:58,078 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:13:58,078 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:13:58,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:13:58,078 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:13:58,080 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:13:58,080 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:13:58,080 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:13:58,080 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:13:58,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:13:58,081 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:13:58,081 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:13:58,081 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:13:58,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:13:58,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:13:58,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:13:58,171 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:13:58,172 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:13:58,173 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label32_true-unreach-call.c [2018-11-12 19:13:58,241 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2374bce20/6a50c2769ea24f2d999be4aae2193829/FLAGadd50717e [2018-11-12 19:13:58,896 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:13:58,897 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label32_true-unreach-call.c [2018-11-12 19:13:58,919 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2374bce20/6a50c2769ea24f2d999be4aae2193829/FLAGadd50717e [2018-11-12 19:13:58,938 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2374bce20/6a50c2769ea24f2d999be4aae2193829 [2018-11-12 19:13:58,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:13:58,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:13:58,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:13:58,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:13:58,955 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:13:58,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:13:58" (1/1) ... [2018-11-12 19:13:58,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5742dfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:13:58, skipping insertion in model container [2018-11-12 19:13:58,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:13:58" (1/1) ... [2018-11-12 19:13:58,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:13:59,068 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:13:59,911 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:13:59,921 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:14:00,261 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:14:00,283 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:14:00,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00 WrapperNode [2018-11-12 19:14:00,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:14:00,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:14:00,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:14:00,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:14:00,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:14:00,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:14:00,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:14:00,525 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:14:00,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (1/1) ... [2018-11-12 19:14:00,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:14:00,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:14:00,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:14:00,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:14:00,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (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 19:14:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:14:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:14:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:14:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:14:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:14:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:14:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:14:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:14:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:14:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:14:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:14:06,727 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:14:06,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:14:06 BoogieIcfgContainer [2018-11-12 19:14:06,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:14:06,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:14:06,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:14:06,734 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:14:06,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:13:58" (1/3) ... [2018-11-12 19:14:06,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6739cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:14:06, skipping insertion in model container [2018-11-12 19:14:06,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:00" (2/3) ... [2018-11-12 19:14:06,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6739cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:14:06, skipping insertion in model container [2018-11-12 19:14:06,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:14:06" (3/3) ... [2018-11-12 19:14:06,738 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label32_true-unreach-call.c [2018-11-12 19:14:06,746 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:14:06,755 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:14:06,771 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:14:06,812 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:14:06,812 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:14:06,813 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:14:06,813 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:14:06,813 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:14:06,813 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:14:06,813 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:14:06,814 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:14:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-12 19:14:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-12 19:14:06,858 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:06,859 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:14:06,861 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:06,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:06,867 INFO L82 PathProgramCache]: Analyzing trace with hash -317902452, now seen corresponding path program 1 times [2018-11-12 19:14:06,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:06,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:06,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:06,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:06,918 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:07,366 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:14:07,532 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 19:14:07,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:14:07,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:14:07,539 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:07,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:14:07,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:14:07,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:14:07,584 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-11-12 19:14:11,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:14:11,356 INFO L93 Difference]: Finished difference Result 1192 states and 2147 transitions. [2018-11-12 19:14:11,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:14:11,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2018-11-12 19:14:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:14:11,383 INFO L225 Difference]: With dead ends: 1192 [2018-11-12 19:14:11,384 INFO L226 Difference]: Without dead ends: 752 [2018-11-12 19:14:11,394 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:14:11,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2018-11-12 19:14:11,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2018-11-12 19:14:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-11-12 19:14:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1322 transitions. [2018-11-12 19:14:11,497 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1322 transitions. Word has length 56 [2018-11-12 19:14:11,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:14:11,498 INFO L480 AbstractCegarLoop]: Abstraction has 752 states and 1322 transitions. [2018-11-12 19:14:11,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:14:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1322 transitions. [2018-11-12 19:14:11,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-12 19:14:11,507 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:11,507 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:14:11,508 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:11,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:11,508 INFO L82 PathProgramCache]: Analyzing trace with hash -372180046, now seen corresponding path program 1 times [2018-11-12 19:14:11,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:11,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:11,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:11,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:11,510 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:12,076 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:14:12,077 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:14:12,077 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:14:12,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-11-12 19:14:12,082 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:14:12,143 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:14:12,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:14:12,735 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:14:12,737 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Performed 754 root evaluator evaluations with a maximum evaluation depth of 4. Performed 754 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:14:12,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:12,754 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:14:13,191 INFO L227 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 78.52% of their original sizes. [2018-11-12 19:14:13,192 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:14:13,371 INFO L415 sIntCurrentIteration]: We unified 136 AI predicates to 136 [2018-11-12 19:14:13,372 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:14:13,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:14:13,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-12 19:14:13,373 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:13,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:14:13,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:14:13,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:14:13,377 INFO L87 Difference]: Start difference. First operand 752 states and 1322 transitions. Second operand 7 states. [2018-11-12 19:14:15,696 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:14:42,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:14:42,282 INFO L93 Difference]: Finished difference Result 1808 states and 3199 transitions. [2018-11-12 19:14:42,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:14:42,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2018-11-12 19:14:42,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:14:42,291 INFO L225 Difference]: With dead ends: 1808 [2018-11-12 19:14:42,291 INFO L226 Difference]: Without dead ends: 1062 [2018-11-12 19:14:42,295 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:14:42,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-11-12 19:14:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1060. [2018-11-12 19:14:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2018-11-12 19:14:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1637 transitions. [2018-11-12 19:14:42,356 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1637 transitions. Word has length 137 [2018-11-12 19:14:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:14:42,357 INFO L480 AbstractCegarLoop]: Abstraction has 1060 states and 1637 transitions. [2018-11-12 19:14:42,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 19:14:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1637 transitions. [2018-11-12 19:14:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-11-12 19:14:42,372 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:42,373 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, 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, 1, 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 19:14:42,373 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:42,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:42,374 INFO L82 PathProgramCache]: Analyzing trace with hash 2126769513, now seen corresponding path program 1 times [2018-11-12 19:14:42,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:42,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:42,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:42,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:42,375 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:42,946 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:14:44,179 WARN L179 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-11-12 19:14:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 48 proven. 124 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-12 19:14:44,528 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:14:44,528 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:14:44,528 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-11-12 19:14:44,529 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:14:44,534 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:14:44,535 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:14:44,604 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:14:45,675 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:14:45,675 INFO L272 AbstractInterpreter]: Visited 104 different actions 692 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 11908 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11908 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 19:14:45,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:45,714 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:14:46,446 INFO L227 lantSequenceWeakener]: Weakened 39 states. On average, predicates are now at 77.86% of their original sizes. [2018-11-12 19:14:46,446 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:14:50,559 INFO L415 sIntCurrentIteration]: We unified 232 AI predicates to 232 [2018-11-12 19:14:50,559 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:14:50,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:14:50,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [13] total 26 [2018-11-12 19:14:50,560 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:50,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-12 19:14:50,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-12 19:14:50,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-11-12 19:14:50,562 INFO L87 Difference]: Start difference. First operand 1060 states and 1637 transitions. Second operand 15 states. [2018-11-12 19:15:24,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:15:24,051 INFO L93 Difference]: Finished difference Result 3274 states and 5396 transitions. [2018-11-12 19:15:24,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:15:24,052 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 233 [2018-11-12 19:15:24,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:15:24,064 INFO L225 Difference]: With dead ends: 3274 [2018-11-12 19:15:24,064 INFO L226 Difference]: Without dead ends: 2528 [2018-11-12 19:15:24,068 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 238 GetRequests, 133 SyntacticMatches, 86 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:15:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2018-11-12 19:15:24,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1998. [2018-11-12 19:15:24,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2018-11-12 19:15:24,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2617 transitions. [2018-11-12 19:15:24,130 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2617 transitions. Word has length 233 [2018-11-12 19:15:24,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:15:24,131 INFO L480 AbstractCegarLoop]: Abstraction has 1998 states and 2617 transitions. [2018-11-12 19:15:24,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-12 19:15:24,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2617 transitions. [2018-11-12 19:15:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-11-12 19:15:24,140 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:15:24,140 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:15:24,141 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:15:24,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:15:24,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1301794788, now seen corresponding path program 1 times [2018-11-12 19:15:24,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:15:24,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:15:24,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:15:24,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:15:24,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:15:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:15:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 9 proven. 92 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-12 19:15:24,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:15:24,660 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:15:24,660 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 413 with the following transitions: [2018-11-12 19:15:24,661 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:15:24,670 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:15:24,670 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:15:25,012 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:15:25,345 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:15:25,345 INFO L272 AbstractInterpreter]: Visited 283 different actions 562 times. Merged at 5 different actions 7 times. Never widened. Performed 10845 root evaluator evaluations with a maximum evaluation depth of 6. Performed 10845 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 19:15:25,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:15:25,375 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:15:26,009 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 82.16% of their original sizes. [2018-11-12 19:15:26,010 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:15:26,393 INFO L415 sIntCurrentIteration]: We unified 411 AI predicates to 411 [2018-11-12 19:15:26,394 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:15:26,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:15:26,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [7] total 26 [2018-11-12 19:15:26,395 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:15:26,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 19:15:26,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 19:15:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:15:26,396 INFO L87 Difference]: Start difference. First operand 1998 states and 2617 transitions. Second operand 21 states. [2018-11-12 19:16:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:16:23,122 INFO L93 Difference]: Finished difference Result 3900 states and 6042 transitions. [2018-11-12 19:16:23,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-12 19:16:23,122 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 412 [2018-11-12 19:16:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:16:23,136 INFO L225 Difference]: With dead ends: 3900 [2018-11-12 19:16:23,136 INFO L226 Difference]: Without dead ends: 3154 [2018-11-12 19:16:23,141 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 429 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2018-11-12 19:16:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2018-11-12 19:16:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 2914. [2018-11-12 19:16:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2018-11-12 19:16:23,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3599 transitions. [2018-11-12 19:16:23,211 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3599 transitions. Word has length 412 [2018-11-12 19:16:23,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:16:23,212 INFO L480 AbstractCegarLoop]: Abstraction has 2914 states and 3599 transitions. [2018-11-12 19:16:23,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-12 19:16:23,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3599 transitions. [2018-11-12 19:16:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2018-11-12 19:16:23,224 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:16:23,225 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:16:23,225 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:16:23,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:23,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1980366233, now seen corresponding path program 1 times [2018-11-12 19:16:23,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:16:23,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:23,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:16:23,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:23,227 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:16:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:16:24,415 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:16:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 166 proven. 195 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-12 19:16:25,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:16:25,401 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:16:25,402 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 483 with the following transitions: [2018-11-12 19:16:25,402 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:16:25,408 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:16:25,408 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:16:25,816 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:16:26,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:16:26,339 INFO L272 AbstractInterpreter]: Visited 284 different actions 848 times. Merged at 7 different actions 18 times. Never widened. Performed 16035 root evaluator evaluations with a maximum evaluation depth of 6. Performed 16035 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 19:16:26,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:26,343 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:16:26,752 INFO L227 lantSequenceWeakener]: Weakened 479 states. On average, predicates are now at 80.38% of their original sizes. [2018-11-12 19:16:26,753 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:16:26,841 INFO L415 sIntCurrentIteration]: We unified 481 AI predicates to 481 [2018-11-12 19:16:26,841 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:16:26,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:16:26,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2018-11-12 19:16:26,844 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:16:26,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:16:26,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:16:26,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:16:26,845 INFO L87 Difference]: Start difference. First operand 2914 states and 3599 transitions. Second operand 10 states. [2018-11-12 19:16:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:16:38,011 INFO L93 Difference]: Finished difference Result 4318 states and 5848 transitions. [2018-11-12 19:16:38,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 19:16:38,011 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 482 [2018-11-12 19:16:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:16:38,025 INFO L225 Difference]: With dead ends: 4318 [2018-11-12 19:16:38,025 INFO L226 Difference]: Without dead ends: 3572 [2018-11-12 19:16:38,029 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 488 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:16:38,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2018-11-12 19:16:38,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3568. [2018-11-12 19:16:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3568 states. [2018-11-12 19:16:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 4320 transitions. [2018-11-12 19:16:38,115 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 4320 transitions. Word has length 482 [2018-11-12 19:16:38,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:16:38,116 INFO L480 AbstractCegarLoop]: Abstraction has 3568 states and 4320 transitions. [2018-11-12 19:16:38,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:16:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 4320 transitions. [2018-11-12 19:16:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2018-11-12 19:16:38,124 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:16:38,125 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:16:38,125 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:16:38,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:38,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1017129886, now seen corresponding path program 1 times [2018-11-12 19:16:38,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:16:38,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:38,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:16:38,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:38,128 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:16:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:16:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 284 proven. 23 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-11-12 19:16:39,242 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:16:39,242 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:16:39,242 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 525 with the following transitions: [2018-11-12 19:16:39,243 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:16:39,248 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:16:39,248 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:16:40,032 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:16:40,793 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:16:40,793 INFO L272 AbstractInterpreter]: Visited 284 different actions 1123 times. Merged at 7 different actions 20 times. Never widened. Performed 21589 root evaluator evaluations with a maximum evaluation depth of 6. Performed 21589 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:16:40,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:40,804 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:16:41,269 INFO L227 lantSequenceWeakener]: Weakened 521 states. On average, predicates are now at 80.37% of their original sizes. [2018-11-12 19:16:41,269 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:16:41,372 INFO L415 sIntCurrentIteration]: We unified 523 AI predicates to 523 [2018-11-12 19:16:41,373 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:16:41,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:16:41,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2018-11-12 19:16:41,373 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:16:41,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:16:41,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:16:41,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:16:41,375 INFO L87 Difference]: Start difference. First operand 3568 states and 4320 transitions. Second operand 10 states. [2018-11-12 19:16:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:16:52,489 INFO L93 Difference]: Finished difference Result 4684 states and 6286 transitions. [2018-11-12 19:16:52,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 19:16:52,489 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 524 [2018-11-12 19:16:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:16:52,504 INFO L225 Difference]: With dead ends: 4684 [2018-11-12 19:16:52,504 INFO L226 Difference]: Without dead ends: 3938 [2018-11-12 19:16:52,508 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 531 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:16:52,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2018-11-12 19:16:52,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3920. [2018-11-12 19:16:52,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2018-11-12 19:16:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4817 transitions. [2018-11-12 19:16:52,607 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4817 transitions. Word has length 524 [2018-11-12 19:16:52,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:16:52,608 INFO L480 AbstractCegarLoop]: Abstraction has 3920 states and 4817 transitions. [2018-11-12 19:16:52,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:16:52,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4817 transitions. [2018-11-12 19:16:52,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2018-11-12 19:16:52,618 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:16:52,619 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:16:52,619 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:16:52,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:52,620 INFO L82 PathProgramCache]: Analyzing trace with hash 332189564, now seen corresponding path program 1 times [2018-11-12 19:16:52,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:16:52,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:52,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:16:52,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:52,621 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:16:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:16:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-12 19:16:53,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:16:53,511 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:16:53,512 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 526 with the following transitions: [2018-11-12 19:16:53,512 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1167], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:16:53,516 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:16:53,517 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:16:53,657 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:16:54,082 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:16:54,083 INFO L272 AbstractInterpreter]: Visited 283 different actions 843 times. Merged at 7 different actions 16 times. Never widened. Performed 11908 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11908 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:16:54,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:54,091 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:16:54,606 INFO L227 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 80.89% of their original sizes. [2018-11-12 19:16:54,607 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:16:55,245 INFO L415 sIntCurrentIteration]: We unified 524 AI predicates to 524 [2018-11-12 19:16:55,245 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:16:55,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:16:55,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [5] total 24 [2018-11-12 19:16:55,246 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:16:55,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 19:16:55,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 19:16:55,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:16:55,248 INFO L87 Difference]: Start difference. First operand 3920 states and 4817 transitions. Second operand 21 states. Received shutdown request... [2018-11-12 19:17:37,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-12 19:17:37,630 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:17:37,636 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:17:37,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:17:37 BoogieIcfgContainer [2018-11-12 19:17:37,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:17:37,637 INFO L168 Benchmark]: Toolchain (without parser) took 218687.98 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 4.1 GB in the end (delta: -2.6 GB). Peak memory consumption was 968.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:37,638 INFO L168 Benchmark]: CDTParser took 0.22 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 19:17:37,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1333.31 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:37,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 239.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -875.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:37,641 INFO L168 Benchmark]: Boogie Preprocessor took 182.67 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:37,641 INFO L168 Benchmark]: RCFGBuilder took 6019.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.5 MB). Peak memory consumption was 284.5 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:37,642 INFO L168 Benchmark]: TraceAbstraction took 210907.73 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 4.1 GB in the end (delta: -2.2 GB). Peak memory consumption was 705.0 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:37,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1333.31 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 239.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -875.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.67 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6019.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.5 MB). Peak memory consumption was 284.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210907.73 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 4.1 GB in the end (delta: -2.2 GB). Peak memory consumption was 705.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 154). Cancelled while BasicCegarLoop was constructing difference of abstraction (3920states) and FLOYD_HOARE automaton (currently 32 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (4882 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 187.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2644 SDtfs, 18246 SDslu, 2587 SDs, 0 SdLazy, 20849 SolverSat, 3304 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.7s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 2371 GetRequests, 2152 SyntacticMatches, 88 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1481 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3920occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.6s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9979240635396069 AbsIntWeakeningRatio, 0.07022106631989597 AbsIntAvgWeakeningVarsNumRemoved, 18.51365409622887 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 794 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 2369 NumberOfCodeBlocks, 2369 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2362 ConstructedInterpolants, 0 QuantifiedInterpolants, 6322920 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 915/1488 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown