java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label39_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:55:48,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:55:48,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:55:48,819 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:55:48,819 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:55:48,821 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:55:48,822 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:55:48,826 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:55:48,829 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:55:48,830 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:55:48,832 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:55:48,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:55:48,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:55:48,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:55:48,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:55:48,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:55:48,846 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:55:48,853 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:55:48,857 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:55:48,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:55:48,862 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:55:48,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:55:48,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 23:55:48,882 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-26 23:55:48,911 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:55:48,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:55:48,913 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:55:48,913 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:55:48,913 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:55:48,913 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:55:48,914 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:55:48,914 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:55:48,914 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 23:55:48,914 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:55:48,914 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:55:48,915 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:55:48,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:55:48,916 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:55:48,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:55:48,916 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:55:48,916 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:55:48,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:55:48,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:55:48,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:55:48,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:55:48,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:55:48,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:55:48,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:55:48,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:55:48,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:55:48,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:55:48,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:55:48,921 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:55:48,921 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:55:48,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:55:48,921 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:55:48,921 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 23:55:48,922 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 23:55:48,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:55:49,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:55:49,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:55:49,015 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:55:49,016 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:55:49,017 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label39_false-unreach-call_false-termination.c [2018-10-26 23:55:49,086 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc638d151/38055a98acc14496b3bcf58880ff1fa8/FLAGb407183fc [2018-10-26 23:55:49,664 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:55:49,665 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label39_false-unreach-call_false-termination.c [2018-10-26 23:55:49,683 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc638d151/38055a98acc14496b3bcf58880ff1fa8/FLAGb407183fc [2018-10-26 23:55:49,702 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc638d151/38055a98acc14496b3bcf58880ff1fa8 [2018-10-26 23:55:49,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:55:49,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:55:49,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:55:49,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:55:49,719 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:55:49,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:55:49" (1/1) ... [2018-10-26 23:55:49,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405e6276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:49, skipping insertion in model container [2018-10-26 23:55:49,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:55:49" (1/1) ... [2018-10-26 23:55:49,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:55:49,802 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:55:50,294 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:55:50,299 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:55:50,484 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:55:50,503 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:55:50,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50 WrapperNode [2018-10-26 23:55:50,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:55:50,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:55:50,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:55:50,505 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:55:50,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:55:50,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:55:50,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:55:50,755 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:55:50,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... [2018-10-26 23:55:50,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:55:50,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:55:50,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:55:50,872 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:55:50,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:55:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:55:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:55:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 23:55:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 23:55:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:55:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:55:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:55:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:55:54,626 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:55:54,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:55:54 BoogieIcfgContainer [2018-10-26 23:55:54,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:55:54,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:55:54,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:55:54,634 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:55:54,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:55:49" (1/3) ... [2018-10-26 23:55:54,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a83e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:55:54, skipping insertion in model container [2018-10-26 23:55:54,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:55:50" (2/3) ... [2018-10-26 23:55:54,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a83e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:55:54, skipping insertion in model container [2018-10-26 23:55:54,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:55:54" (3/3) ... [2018-10-26 23:55:54,638 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label39_false-unreach-call_false-termination.c [2018-10-26 23:55:54,647 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:55:54,656 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:55:54,674 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:55:54,715 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:55:54,715 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:55:54,715 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:55:54,716 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:55:54,716 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:55:54,716 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:55:54,716 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:55:54,716 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:55:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-26 23:55:54,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 23:55:54,756 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:55:54,757 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] [2018-10-26 23:55:54,760 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:55:54,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:55:54,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1823937900, now seen corresponding path program 1 times [2018-10-26 23:55:54,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:55:54,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:55:54,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:55:54,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:55:54,821 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:55:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:55:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:55:55,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:55:55,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:55:55,291 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:55:55,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:55:55,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:55:55,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:55:55,322 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-26 23:55:57,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:55:57,245 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-26 23:55:57,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:55:57,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-10-26 23:55:57,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:55:57,268 INFO L225 Difference]: With dead ends: 691 [2018-10-26 23:55:57,268 INFO L226 Difference]: Without dead ends: 434 [2018-10-26 23:55:57,280 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:55:57,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-26 23:55:57,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-26 23:55:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-26 23:55:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-26 23:55:57,375 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 32 [2018-10-26 23:55:57,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:55:57,375 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-26 23:55:57,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:55:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-26 23:55:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-10-26 23:55:57,382 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:55:57,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:55:57,383 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:55:57,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:55:57,384 INFO L82 PathProgramCache]: Analyzing trace with hash -319610313, now seen corresponding path program 1 times [2018-10-26 23:55:57,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:55:57,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:55:57,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:55:57,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:55:57,386 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:55:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:55:57,710 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:55:57,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:55:57,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:55:57,711 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:55:57,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:55:57,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:55:57,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:55:57,714 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-26 23:55:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:55:59,855 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-10-26 23:55:59,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:55:59,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2018-10-26 23:55:59,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:55:59,865 INFO L225 Difference]: With dead ends: 1062 [2018-10-26 23:55:59,865 INFO L226 Difference]: Without dead ends: 634 [2018-10-26 23:55:59,868 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:55:59,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-10-26 23:55:59,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-10-26 23:55:59,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-10-26 23:55:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-10-26 23:55:59,923 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 119 [2018-10-26 23:55:59,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:55:59,923 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-10-26 23:55:59,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:55:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-10-26 23:55:59,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-26 23:55:59,927 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:55:59,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:55:59,928 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:55:59,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:55:59,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1728515332, now seen corresponding path program 1 times [2018-10-26 23:55:59,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:55:59,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:55:59,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:55:59,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:55:59,931 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:55:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:56:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:56:00,285 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:56:00,285 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:56:00,287 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-10-26 23:56:00,289 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [157], [159], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-26 23:56:00,367 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:56:00,368 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:56:02,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:56:02,460 INFO L272 AbstractInterpreter]: Visited 100 different actions 100 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-26 23:56:02,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:56:02,470 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:56:03,955 INFO L227 lantSequenceWeakener]: Weakened 123 states. On average, predicates are now at 77.9% of their original sizes. [2018-10-26 23:56:03,955 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:56:04,189 INFO L415 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-10-26 23:56:04,189 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:56:04,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:56:04,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-26 23:56:04,190 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:56:04,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:56:04,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:56:04,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:56:04,192 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 7 states. [2018-10-26 23:56:06,053 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:56:31,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:56:31,658 INFO L93 Difference]: Finished difference Result 1429 states and 2328 transitions. [2018-10-26 23:56:31,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:56:31,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 128 [2018-10-26 23:56:31,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:56:31,664 INFO L225 Difference]: With dead ends: 1429 [2018-10-26 23:56:31,664 INFO L226 Difference]: Without dead ends: 810 [2018-10-26 23:56:31,667 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:56:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2018-10-26 23:56:31,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 808. [2018-10-26 23:56:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2018-10-26 23:56:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1209 transitions. [2018-10-26 23:56:31,693 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1209 transitions. Word has length 128 [2018-10-26 23:56:31,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:56:31,693 INFO L481 AbstractCegarLoop]: Abstraction has 808 states and 1209 transitions. [2018-10-26 23:56:31,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:56:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1209 transitions. [2018-10-26 23:56:31,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-10-26 23:56:31,698 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:56:31,698 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 23:56:31,699 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:56:31,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:56:31,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1027226283, now seen corresponding path program 1 times [2018-10-26 23:56:31,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:56:31,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:56:31,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:56:31,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:56:31,701 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:56:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:56:32,257 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:56:32,473 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-26 23:56:32,698 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:56:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:56:33,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:56:33,075 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:56:33,075 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-10-26 23:56:33,076 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [157], [159], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-26 23:56:33,083 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:56:33,083 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:56:36,057 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-26 23:56:36,058 INFO L272 AbstractInterpreter]: Visited 105 different actions 202 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-26 23:56:36,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:56:36,067 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-26 23:56:36,067 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:56:36,067 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:56:36,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:56:36,077 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 23:56:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:56:36,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:56:36,638 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:56:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 82 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:56:37,126 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 23:56:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:56:38,108 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-26 23:56:38,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2018-10-26 23:56:38,108 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-26 23:56:38,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-26 23:56:38,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-26 23:56:38,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-10-26 23:56:38,111 INFO L87 Difference]: Start difference. First operand 808 states and 1209 transitions. Second operand 15 states. [2018-10-26 23:56:39,775 WARN L179 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-10-26 23:56:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:56:45,532 INFO L93 Difference]: Finished difference Result 2479 states and 3951 transitions. [2018-10-26 23:56:45,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-26 23:56:45,537 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 213 [2018-10-26 23:56:45,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:56:45,548 INFO L225 Difference]: With dead ends: 2479 [2018-10-26 23:56:45,548 INFO L226 Difference]: Without dead ends: 1661 [2018-10-26 23:56:45,558 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 418 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2018-10-26 23:56:45,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2018-10-26 23:56:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1397. [2018-10-26 23:56:45,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1397 states. [2018-10-26 23:56:45,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1795 transitions. [2018-10-26 23:56:45,628 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1795 transitions. Word has length 213 [2018-10-26 23:56:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:56:45,630 INFO L481 AbstractCegarLoop]: Abstraction has 1397 states and 1795 transitions. [2018-10-26 23:56:45,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-26 23:56:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1795 transitions. [2018-10-26 23:56:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-10-26 23:56:45,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:56:45,635 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 23:56:45,636 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:56:45,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:56:45,636 INFO L82 PathProgramCache]: Analyzing trace with hash -229492457, now seen corresponding path program 1 times [2018-10-26 23:56:45,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:56:45,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:56:45,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:56:45,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:56:45,638 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:56:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:56:46,201 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:56:46,413 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-26 23:56:46,644 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:56:46,899 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 23:56:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:56:47,305 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:56:47,305 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:56:47,305 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-10-26 23:56:47,306 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [157], [159], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-26 23:56:47,310 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:56:47,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:56:51,926 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:56:51,926 INFO L272 AbstractInterpreter]: Visited 119 different actions 232 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-26 23:56:51,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:56:51,928 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:56:54,861 INFO L227 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 78.31% of their original sizes. [2018-10-26 23:56:54,861 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:57:03,506 INFO L415 sIntCurrentIteration]: We unified 238 AI predicates to 238 [2018-10-26 23:57:03,506 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:57:03,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:57:03,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [15] total 33 [2018-10-26 23:57:03,507 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:57:03,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-26 23:57:03,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-26 23:57:03,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-10-26 23:57:03,508 INFO L87 Difference]: Start difference. First operand 1397 states and 1795 transitions. Second operand 20 states. [2018-10-26 23:58:27,319 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:59:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:59:50,506 INFO L93 Difference]: Finished difference Result 2982 states and 3830 transitions. [2018-10-26 23:59:50,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-26 23:59:50,507 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 239 [2018-10-26 23:59:50,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:59:50,516 INFO L225 Difference]: With dead ends: 2982 [2018-10-26 23:59:50,521 INFO L226 Difference]: Without dead ends: 1774 [2018-10-26 23:59:50,526 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=236, Invalid=1024, Unknown=0, NotChecked=0, Total=1260 [2018-10-26 23:59:50,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2018-10-26 23:59:50,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1767. [2018-10-26 23:59:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2018-10-26 23:59:50,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2172 transitions. [2018-10-26 23:59:50,689 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2172 transitions. Word has length 239 [2018-10-26 23:59:50,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:59:50,690 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 2172 transitions. [2018-10-26 23:59:50,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-26 23:59:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2172 transitions. [2018-10-26 23:59:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-10-26 23:59:50,697 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:59:50,697 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:59:50,698 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:59:50,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:59:50,698 INFO L82 PathProgramCache]: Analyzing trace with hash 613999339, now seen corresponding path program 1 times [2018-10-26 23:59:50,698 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:59:50,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:59:50,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:59:50,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:59:50,699 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:59:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:59:51,031 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-26 23:59:51,280 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-10-26 23:59:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 183 proven. 125 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-26 23:59:51,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:59:51,521 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:59:51,521 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 350 with the following transitions: [2018-10-26 23:59:51,522 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [157], [159], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-26 23:59:51,525 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:59:51,526 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-26 23:59:52,589 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-26 23:59:52,590 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-26 23:59:52,590 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 23:59:52,590 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:59:52,590 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:59:52,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:59:52,598 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 23:59:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:59:52,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:59:52,724 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-26 23:59:52,925 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:59:52,926 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 23:59:52,930 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 23:59:52,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:59:52 BoogieIcfgContainer [2018-10-26 23:59:52,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:59:52,931 INFO L168 Benchmark]: Toolchain (without parser) took 243218.03 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 810.4 MB. Max. memory is 7.1 GB. [2018-10-26 23:59:52,932 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 23:59:52,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.61 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-26 23:59:52,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 250.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -808.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2018-10-26 23:59:52,934 INFO L168 Benchmark]: Boogie Preprocessor took 116.61 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-10-26 23:59:52,935 INFO L168 Benchmark]: RCFGBuilder took 3755.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 120.3 MB). Peak memory consumption was 120.3 MB. Max. memory is 7.1 GB. [2018-10-26 23:59:52,936 INFO L168 Benchmark]: TraceAbstraction took 238301.72 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 728.7 MB. Max. memory is 7.1 GB. [2018-10-26 23:59:52,941 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.61 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 250.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -808.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.61 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3755.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 120.3 MB). Peak memory consumption was 120.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238301.72 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 728.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 79). Cancelled while BasicCegarLoop was analyzing trace of length 350 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 238.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 206.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 740 SDtfs, 6474 SDslu, 1213 SDs, 0 SdLazy, 8610 SolverSat, 1629 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 851 GetRequests, 764 SyntacticMatches, 5 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 18.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1767occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.8s AbstIntTime, 4 AbstIntIterations, 2 AbstIntStrong, 0.9944709152273178 AbsIntWeakeningRatio, 0.12602739726027398 AbsIntAvgWeakeningVarsNumRemoved, 322.86301369863014 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 282 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 944 NumberOfCodeBlocks, 944 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1150 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890331 SizeOfPredicates, 6 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 439/601 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown