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/Problem01_label57_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:11:46,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:11:46,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:11:46,843 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:11:46,843 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:11:46,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:11:46,846 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:11:46,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:11:46,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:11:46,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:11:46,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:11:46,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:11:46,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:11:46,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:11:46,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:11:46,855 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:11:46,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:11:46,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:11:46,864 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:11:46,866 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:11:46,867 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:11:46,868 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:11:46,871 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 21:11:46,871 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 21:11:46,871 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 21:11:46,872 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 21:11:46,873 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 21:11:46,874 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 21:11:46,875 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 21:11:46,876 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 21:11:46,876 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 21:11:46,877 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 21:11:46,879 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 [2018-10-23 21:11:46,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:11:46,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:11:46,908 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:11:46,908 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 21:11:46,909 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 21:11:46,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 21:11:46,912 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 21:11:46,912 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 21:11:46,913 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 21:11:46,913 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 21:11:46,913 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 21:11:46,914 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 21:11:46,914 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:11:46,915 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:11:46,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:11:46,915 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:11:46,915 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:11:46,915 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:11:46,916 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:11:46,916 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:11:46,916 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:11:46,916 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:11:46,916 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:11:46,918 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:11:46,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:11:46,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:11:46,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:11:46,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:11:46,919 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 21:11:46,920 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:11:46,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:11:46,920 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:11:46,921 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:11:46,921 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 21:11:46,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:11:47,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:11:47,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:11:47,017 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:11:47,018 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:11:47,018 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label57_false-unreach-call_false-termination.c [2018-10-23 21:11:47,085 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ee0687784/4af2b3ecd0ae4a61aa0cce3a0e3187ae/FLAGdb164706e [2018-10-23 21:11:47,703 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:11:47,704 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label57_false-unreach-call_false-termination.c [2018-10-23 21:11:47,730 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ee0687784/4af2b3ecd0ae4a61aa0cce3a0e3187ae/FLAGdb164706e [2018-10-23 21:11:47,754 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ee0687784/4af2b3ecd0ae4a61aa0cce3a0e3187ae [2018-10-23 21:11:47,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:11:47,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:11:47,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:11:47,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:11:47,774 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:11:47,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:11:47" (1/1) ... [2018-10-23 21:11:47,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d35362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:47, skipping insertion in model container [2018-10-23 21:11:47,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:11:47" (1/1) ... [2018-10-23 21:11:47,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:11:47,862 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:11:48,316 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:11:48,329 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:11:48,466 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:11:48,486 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:11:48,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48 WrapperNode [2018-10-23 21:11:48,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:11:48,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:11:48,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:11:48,488 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:11:48,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:11:48,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:11:48,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:11:48,691 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:11:48,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:11:48,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:11:48,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:11:48,753 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:11:48,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (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 [2018-10-23 21:11:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 21:11:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 21:11:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 21:11:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 21:11:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:11:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:11:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 21:11:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 21:11:51,991 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:11:51,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:11:51 BoogieIcfgContainer [2018-10-23 21:11:51,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:11:51,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:11:51,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:11:51,996 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:11:51,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:11:47" (1/3) ... [2018-10-23 21:11:51,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521c8ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:11:51, skipping insertion in model container [2018-10-23 21:11:51,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (2/3) ... [2018-10-23 21:11:51,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521c8ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:11:51, skipping insertion in model container [2018-10-23 21:11:51,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:11:51" (3/3) ... [2018-10-23 21:11:51,999 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label57_false-unreach-call_false-termination.c [2018-10-23 21:11:52,007 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:11:52,016 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:11:52,033 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:11:52,072 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:11:52,072 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:11:52,072 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:11:52,073 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:11:52,073 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:11:52,073 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:11:52,073 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:11:52,073 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:11:52,101 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-23 21:11:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-23 21:11:52,114 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:52,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:11:52,118 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:52,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:52,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2067767141, now seen corresponding path program 1 times [2018-10-23 21:11:52,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:52,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:52,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:52,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:52,182 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:52,720 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 21:11:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:11:52,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:11:52,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:11:52,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:11:52,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:11:52,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:11:52,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:11:52,846 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-23 21:11:54,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:11:54,318 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-23 21:11:54,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:11:54,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2018-10-23 21:11:54,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:11:54,340 INFO L225 Difference]: With dead ends: 550 [2018-10-23 21:11:54,341 INFO L226 Difference]: Without dead ends: 340 [2018-10-23 21:11:54,347 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 [2018-10-23 21:11:54,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-23 21:11:54,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-23 21:11:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-23 21:11:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 571 transitions. [2018-10-23 21:11:54,430 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 571 transitions. Word has length 85 [2018-10-23 21:11:54,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:11:54,431 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 571 transitions. [2018-10-23 21:11:54,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:11:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 571 transitions. [2018-10-23 21:11:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-10-23 21:11:54,438 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:54,438 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 21:11:54,439 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:54,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:54,439 INFO L82 PathProgramCache]: Analyzing trace with hash -795068642, now seen corresponding path program 1 times [2018-10-23 21:11:54,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:54,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:54,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:54,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:54,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:11:54,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:11:54,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:11:54,684 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:11:54,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:11:54,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:11:54,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:11:54,688 INFO L87 Difference]: Start difference. First operand 340 states and 571 transitions. Second operand 4 states. [2018-10-23 21:11:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:11:56,691 INFO L93 Difference]: Finished difference Result 1218 states and 2175 transitions. [2018-10-23 21:11:56,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:11:56,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-10-23 21:11:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:11:56,703 INFO L225 Difference]: With dead ends: 1218 [2018-10-23 21:11:56,703 INFO L226 Difference]: Without dead ends: 884 [2018-10-23 21:11:56,709 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:11:56,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2018-10-23 21:11:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 884. [2018-10-23 21:11:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2018-10-23 21:11:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1407 transitions. [2018-10-23 21:11:56,775 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1407 transitions. Word has length 103 [2018-10-23 21:11:56,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:11:56,776 INFO L481 AbstractCegarLoop]: Abstraction has 884 states and 1407 transitions. [2018-10-23 21:11:56,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:11:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1407 transitions. [2018-10-23 21:11:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-23 21:11:56,783 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:56,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:11:56,784 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:56,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:56,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1115310826, now seen corresponding path program 1 times [2018-10-23 21:11:56,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:56,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:56,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:56,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:56,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:11:56,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:11:56,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:11:56,973 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:11:56,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:11:56,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:11:56,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:11:56,975 INFO L87 Difference]: Start difference. First operand 884 states and 1407 transitions. Second operand 3 states. [2018-10-23 21:11:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:11:59,429 INFO L93 Difference]: Finished difference Result 2578 states and 4238 transitions. [2018-10-23 21:11:59,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:11:59,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2018-10-23 21:11:59,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:11:59,448 INFO L225 Difference]: With dead ends: 2578 [2018-10-23 21:11:59,449 INFO L226 Difference]: Without dead ends: 1700 [2018-10-23 21:11:59,458 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:11:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2018-10-23 21:11:59,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1700. [2018-10-23 21:11:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2018-10-23 21:11:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2537 transitions. [2018-10-23 21:11:59,540 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2537 transitions. Word has length 120 [2018-10-23 21:11:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:11:59,540 INFO L481 AbstractCegarLoop]: Abstraction has 1700 states and 2537 transitions. [2018-10-23 21:11:59,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:11:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2537 transitions. [2018-10-23 21:11:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-23 21:11:59,549 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:59,550 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, 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] [2018-10-23 21:11:59,550 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:59,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:59,550 INFO L82 PathProgramCache]: Analyzing trace with hash 2052687454, now seen corresponding path program 1 times [2018-10-23 21:11:59,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:59,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:59,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:59,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:59,552 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:59,824 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 21:11:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:11:59,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:11:59,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:11:59,926 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:11:59,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:11:59,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:11:59,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:11:59,927 INFO L87 Difference]: Start difference. First operand 1700 states and 2537 transitions. Second operand 6 states. [2018-10-23 21:12:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:12:01,410 INFO L93 Difference]: Finished difference Result 4353 states and 6550 transitions. [2018-10-23 21:12:01,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:12:01,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-10-23 21:12:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:12:01,437 INFO L225 Difference]: With dead ends: 4353 [2018-10-23 21:12:01,437 INFO L226 Difference]: Without dead ends: 2659 [2018-10-23 21:12:01,450 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 21:12:01,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2018-10-23 21:12:01,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2619. [2018-10-23 21:12:01,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2619 states. [2018-10-23 21:12:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 3469 transitions. [2018-10-23 21:12:01,533 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 3469 transitions. Word has length 156 [2018-10-23 21:12:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:12:01,534 INFO L481 AbstractCegarLoop]: Abstraction has 2619 states and 3469 transitions. [2018-10-23 21:12:01,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:12:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 3469 transitions. [2018-10-23 21:12:01,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-23 21:12:01,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:12:01,545 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:12:01,545 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:12:01,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:12:01,545 INFO L82 PathProgramCache]: Analyzing trace with hash -533953783, now seen corresponding path program 1 times [2018-10-23 21:12:01,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:12:01,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:12:01,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:12:01,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:12:01,547 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:12:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:12:01,857 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-10-23 21:12:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 81 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 21:12:01,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:12:01,913 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:12:01,914 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-10-23 21:12:01,916 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [253], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [317], [319], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-23 21:12:01,984 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:12:01,985 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 21:12:10,913 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 21:12:10,915 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-10-23 21:12:10,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:12:10,929 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 21:12:14,776 INFO L232 lantSequenceWeakener]: Weakened 140 states. On average, predicates are now at 79.87% of their original sizes. [2018-10-23 21:12:14,777 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 21:12:15,847 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 21:12:15,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:12:15,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-10-23 21:12:15,848 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:12:15,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-23 21:12:15,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-23 21:12:15,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-23 21:12:15,851 INFO L87 Difference]: Start difference. First operand 2619 states and 3469 transitions. Second operand 12 states. [2018-10-23 21:12:28,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:12:28,489 INFO L93 Difference]: Finished difference Result 5293 states and 7050 transitions. [2018-10-23 21:12:28,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-23 21:12:28,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 172 [2018-10-23 21:12:28,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:12:28,503 INFO L225 Difference]: With dead ends: 5293 [2018-10-23 21:12:28,503 INFO L226 Difference]: Without dead ends: 2680 [2018-10-23 21:12:28,512 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 177 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-10-23 21:12:28,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2018-10-23 21:12:28,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2680. [2018-10-23 21:12:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2680 states. [2018-10-23 21:12:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 3539 transitions. [2018-10-23 21:12:28,592 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 3539 transitions. Word has length 172 [2018-10-23 21:12:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:12:28,593 INFO L481 AbstractCegarLoop]: Abstraction has 2680 states and 3539 transitions. [2018-10-23 21:12:28,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-23 21:12:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 3539 transitions. [2018-10-23 21:12:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-10-23 21:12:28,603 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:12:28,603 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:12:28,604 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:12:28,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:12:28,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1848130412, now seen corresponding path program 1 times [2018-10-23 21:12:28,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:12:28,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:12:28,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:12:28,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:12:28,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:12:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:12:28,998 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 99 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-23 21:12:28,999 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:12:28,999 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:12:28,999 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-10-23 21:12:29,000 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [253], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [317], [319], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-23 21:12:29,005 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:12:29,006 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 21:12:49,135 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 21:12:49,135 INFO L272 AbstractInterpreter]: Visited 90 different actions 156 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-23 21:12:49,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:12:49,142 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 21:12:53,915 INFO L232 lantSequenceWeakener]: Weakened 172 states. On average, predicates are now at 80.32% of their original sizes. [2018-10-23 21:12:53,916 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 21:14:02,667 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 21:14:02,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:14:02,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-10-23 21:14:02,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:14:02,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-23 21:14:02,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-23 21:14:02,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-10-23 21:14:02,670 INFO L87 Difference]: Start difference. First operand 2680 states and 3539 transitions. Second operand 17 states. [2018-10-23 21:15:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:15:06,492 INFO L93 Difference]: Finished difference Result 5438 states and 7223 transitions. [2018-10-23 21:15:06,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-23 21:15:06,492 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 181 [2018-10-23 21:15:06,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:15:06,504 INFO L225 Difference]: With dead ends: 5438 [2018-10-23 21:15:06,504 INFO L226 Difference]: Without dead ends: 2825 [2018-10-23 21:15:06,513 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 82 SyntacticMatches, 83 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 78.5s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2018-10-23 21:15:06,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2018-10-23 21:15:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 2818. [2018-10-23 21:15:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2818 states. [2018-10-23 21:15:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3693 transitions. [2018-10-23 21:15:06,711 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3693 transitions. Word has length 181 [2018-10-23 21:15:06,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:15:06,712 INFO L481 AbstractCegarLoop]: Abstraction has 2818 states and 3693 transitions. [2018-10-23 21:15:06,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-23 21:15:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3693 transitions. [2018-10-23 21:15:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-10-23 21:15:06,723 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:15:06,723 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:15:06,724 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:15:06,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:15:06,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1819064644, now seen corresponding path program 1 times [2018-10-23 21:15:06,724 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:15:06,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:15:06,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:15:06,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:15:06,725 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:15:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:15:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 105 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-23 21:15:07,237 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:15:07,237 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:15:07,238 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-10-23 21:15:07,238 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [253], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [317], [319], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-23 21:15:07,242 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:15:07,242 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 21:15:39,560 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 21:15:39,561 INFO L272 AbstractInterpreter]: Visited 90 different actions 155 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-23 21:15:39,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:15:39,569 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 21:15:46,297 INFO L232 lantSequenceWeakener]: Weakened 151 states. On average, predicates are now at 80.24% of their original sizes. [2018-10-23 21:15:46,297 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-23 21:16:03,531 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:16:03,535 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:16:03,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:16:03 BoogieIcfgContainer [2018-10-23 21:16:03,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:16:03,536 INFO L168 Benchmark]: Toolchain (without parser) took 255768.48 ms. Allocated memory was 1.6 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -914.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-23 21:16:03,537 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:16:03,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.09 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:03,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 201.18 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -835.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:03,539 INFO L168 Benchmark]: Boogie Preprocessor took 62.57 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:16:03,540 INFO L168 Benchmark]: RCFGBuilder took 3239.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 116.0 MB). Peak memory consumption was 116.0 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:03,541 INFO L168 Benchmark]: TraceAbstraction took 251542.75 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -226.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-23 21:16:03,545 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 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.09 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 201.18 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -835.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.57 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3239.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 116.0 MB). Peak memory consumption was 116.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251542.75 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -226.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 410]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 410). Cancelled while BasicCegarLoop was analyzing trace of length 185 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 251.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 84.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1303 SDtfs, 2498 SDslu, 578 SDs, 0 SdLazy, 3412 SolverSat, 705 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 397 GetRequests, 252 SyntacticMatches, 87 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 80.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2818occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 61.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9947126196783646 AbsIntWeakeningRatio, 0.21910112359550563 AbsIntAvgWeakeningVarsNumRemoved, 1528.1310861423221 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 47 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 811 ConstructedInterpolants, 0 QuantifiedInterpolants, 321717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 307/333 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown