java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:08:52,851 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:08:52,854 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:08:52,873 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:08:52,874 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:08:52,875 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:08:52,876 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:08:52,878 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:08:52,880 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:08:52,881 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:08:52,882 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:08:52,882 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:08:52,883 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:08:52,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:08:52,885 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:08:52,886 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:08:52,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:08:52,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:08:52,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:08:52,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:08:52,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:08:52,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:08:52,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 00:08:52,898 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 00:08:52,898 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 00:08:52,899 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 00:08:52,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 00:08:52,901 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 00:08:52,902 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 00:08:52,903 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 00:08:52,903 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 00:08:52,904 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 00:08:52,907 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:08:52,927 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:08:52,927 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:08:52,928 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:08:52,929 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:08:52,930 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:08:52,930 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:08:52,930 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:08:52,930 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:08:52,930 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:08:52,931 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:08:52,931 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:08:52,931 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:08:52,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:08:52,932 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:08:52,932 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:08:52,933 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:08:52,933 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:08:52,933 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:08:52,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:08:52,933 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:08:52,934 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:08:52,934 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:08:52,934 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:08:52,934 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:08:52,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:08:52,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:08:52,936 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:08:52,936 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:08:52,936 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:08:52,936 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:08:52,936 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:08:52,937 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:08:52,937 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:08:52,937 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:08:52,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:08:52,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:08:52,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:08:52,999 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:08:52,999 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:08:53,000 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c [2018-11-07 00:08:53,069 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6c91f4f/a2d516fa4bb94d01a9fa6262c4704cae/FLAGe33c228dd [2018-11-07 00:08:53,792 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:08:53,793 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c [2018-11-07 00:08:53,824 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6c91f4f/a2d516fa4bb94d01a9fa6262c4704cae/FLAGe33c228dd [2018-11-07 00:08:53,842 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6c91f4f/a2d516fa4bb94d01a9fa6262c4704cae [2018-11-07 00:08:53,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:08:53,857 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:08:53,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:08:53,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:08:53,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:08:53,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:08:53" (1/1) ... [2018-11-07 00:08:53,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193d11b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:53, skipping insertion in model container [2018-11-07 00:08:53,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:08:53" (1/1) ... [2018-11-07 00:08:53,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:08:54,040 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:08:55,427 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:08:55,432 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:08:56,162 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:08:56,200 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:08:56,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56 WrapperNode [2018-11-07 00:08:56,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:08:56,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:08:56,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:08:56,203 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:08:56,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:08:56,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:08:56,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:08:56,600 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:08:56,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... [2018-11-07 00:08:56,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:08:56,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:08:56,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:08:56,860 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:08:56,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:08:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:08:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:08:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:08:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 00:08:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 00:08:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 00:08:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 00:08:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:08:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:08:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:08:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:08:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:08:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:08:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:08:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:09:05,689 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:09:05,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:09:05 BoogieIcfgContainer [2018-11-07 00:09:05,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:09:05,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:09:05,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:09:05,696 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:09:05,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:08:53" (1/3) ... [2018-11-07 00:09:05,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6974a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:09:05, skipping insertion in model container [2018-11-07 00:09:05,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:56" (2/3) ... [2018-11-07 00:09:05,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6974a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:09:05, skipping insertion in model container [2018-11-07 00:09:05,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:09:05" (3/3) ... [2018-11-07 00:09:05,699 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label52_false-unreach-call.c [2018-11-07 00:09:05,710 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:09:05,721 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:09:05,739 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:09:05,787 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:09:05,787 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:09:05,787 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:09:05,787 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:09:05,787 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:09:05,788 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:09:05,788 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:09:05,788 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:09:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 00:09:05,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-07 00:09:05,842 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:05,844 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] [2018-11-07 00:09:05,847 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:05,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash -785798829, now seen corresponding path program 1 times [2018-11-07 00:09:05,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:06,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:06,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:06,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:06,013 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:06,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:06,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:06,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:09:06,519 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:06,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:09:06,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:09:06,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:09:06,549 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 00:09:15,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:15,103 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 00:09:15,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:09:15,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-11-07 00:09:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:15,155 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 00:09:15,156 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 00:09:15,173 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:09:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 00:09:15,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 00:09:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 00:09:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-11-07 00:09:15,381 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 37 [2018-11-07 00:09:15,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:15,382 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-11-07 00:09:15,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:09:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-11-07 00:09:15,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-07 00:09:15,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:15,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:09:15,391 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:15,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:15,391 INFO L82 PathProgramCache]: Analyzing trace with hash -433018420, now seen corresponding path program 1 times [2018-11-07 00:09:15,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:15,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:15,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:15,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:15,394 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:15,805 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:09:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:15,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:15,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:09:15,937 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:15,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:09:15,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:09:15,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:09:15,940 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-11-07 00:09:25,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:25,444 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-11-07 00:09:25,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:09:25,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-11-07 00:09:25,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:25,472 INFO L225 Difference]: With dead ends: 4818 [2018-11-07 00:09:25,472 INFO L226 Difference]: Without dead ends: 3220 [2018-11-07 00:09:25,478 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:09:25,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-11-07 00:09:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-11-07 00:09:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-11-07 00:09:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-11-07 00:09:25,595 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 111 [2018-11-07 00:09:25,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:25,597 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-11-07 00:09:25,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:09:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-11-07 00:09:25,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-07 00:09:25,603 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:25,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:09:25,607 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:25,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:25,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1430780731, now seen corresponding path program 1 times [2018-11-07 00:09:25,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:25,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:25,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:25,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:25,610 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:25,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:25,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:09:25,882 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:25,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:09:25,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:09:25,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:09:25,884 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 6 states. [2018-11-07 00:09:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:37,150 INFO L93 Difference]: Finished difference Result 11148 states and 19850 transitions. [2018-11-07 00:09:37,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:09:37,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-11-07 00:09:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:37,199 INFO L225 Difference]: With dead ends: 11148 [2018-11-07 00:09:37,200 INFO L226 Difference]: Without dead ends: 7968 [2018-11-07 00:09:37,216 INFO L604 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 [2018-11-07 00:09:37,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2018-11-07 00:09:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 7924. [2018-11-07 00:09:37,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7924 states. [2018-11-07 00:09:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 13424 transitions. [2018-11-07 00:09:37,424 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 13424 transitions. Word has length 116 [2018-11-07 00:09:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:37,424 INFO L480 AbstractCegarLoop]: Abstraction has 7924 states and 13424 transitions. [2018-11-07 00:09:37,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:09:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 13424 transitions. [2018-11-07 00:09:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-07 00:09:37,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:37,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:09:37,431 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:37,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:37,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1344146005, now seen corresponding path program 1 times [2018-11-07 00:09:37,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:37,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:37,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:37,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:37,436 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:37,718 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:09:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:37,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:37,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:09:37,849 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:37,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:09:37,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:09:37,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:09:37,850 INFO L87 Difference]: Start difference. First operand 7924 states and 13424 transitions. Second operand 6 states. [2018-11-07 00:09:46,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:46,743 INFO L93 Difference]: Finished difference Result 22224 states and 38004 transitions. [2018-11-07 00:09:46,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:09:46,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-07 00:09:46,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:46,817 INFO L225 Difference]: With dead ends: 22224 [2018-11-07 00:09:46,817 INFO L226 Difference]: Without dead ends: 14306 [2018-11-07 00:09:46,856 INFO L604 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 [2018-11-07 00:09:46,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14306 states. [2018-11-07 00:09:47,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14306 to 14219. [2018-11-07 00:09:47,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14219 states. [2018-11-07 00:09:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 21550 transitions. [2018-11-07 00:09:47,241 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 21550 transitions. Word has length 124 [2018-11-07 00:09:47,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:47,241 INFO L480 AbstractCegarLoop]: Abstraction has 14219 states and 21550 transitions. [2018-11-07 00:09:47,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:09:47,242 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 21550 transitions. [2018-11-07 00:09:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-07 00:09:47,246 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:47,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:09:47,247 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:47,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:47,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1223245544, now seen corresponding path program 1 times [2018-11-07 00:09:47,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:47,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:47,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:47,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:47,250 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:47,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:47,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:09:47,761 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:47,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:09:47,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:09:47,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:09:47,763 INFO L87 Difference]: Start difference. First operand 14219 states and 21550 transitions. Second operand 6 states. [2018-11-07 00:10:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:10:01,726 INFO L93 Difference]: Finished difference Result 55644 states and 94207 transitions. [2018-11-07 00:10:01,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 00:10:01,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-07 00:10:01,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:10:02,028 INFO L225 Difference]: With dead ends: 55644 [2018-11-07 00:10:02,028 INFO L226 Difference]: Without dead ends: 41431 [2018-11-07 00:10:02,150 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:10:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41431 states. [2018-11-07 00:10:03,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41431 to 41210. [2018-11-07 00:10:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41210 states. [2018-11-07 00:10:04,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41210 states to 41210 states and 61798 transitions. [2018-11-07 00:10:04,050 INFO L78 Accepts]: Start accepts. Automaton has 41210 states and 61798 transitions. Word has length 141 [2018-11-07 00:10:04,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:10:04,050 INFO L480 AbstractCegarLoop]: Abstraction has 41210 states and 61798 transitions. [2018-11-07 00:10:04,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:10:04,054 INFO L276 IsEmpty]: Start isEmpty. Operand 41210 states and 61798 transitions. [2018-11-07 00:10:04,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-07 00:10:04,059 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:10:04,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:10:04,064 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:10:04,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:10:04,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1761661121, now seen corresponding path program 1 times [2018-11-07 00:10:04,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:10:04,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:10:04,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:10:04,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:10:04,067 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:10:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:10:04,375 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:10:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:10:04,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:10:04,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:10:04,805 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:10:04,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:10:04,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:10:04,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:10:04,806 INFO L87 Difference]: Start difference. First operand 41210 states and 61798 transitions. Second operand 6 states. [2018-11-07 00:10:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:10:17,200 INFO L93 Difference]: Finished difference Result 101423 states and 161716 transitions. [2018-11-07 00:10:17,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:10:17,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-11-07 00:10:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:10:17,457 INFO L225 Difference]: With dead ends: 101423 [2018-11-07 00:10:17,457 INFO L226 Difference]: Without dead ends: 60219 [2018-11-07 00:10:17,640 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:10:17,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60219 states. [2018-11-07 00:10:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60219 to 59921. [2018-11-07 00:10:18,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59921 states. [2018-11-07 00:10:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59921 states to 59921 states and 84377 transitions. [2018-11-07 00:10:19,017 INFO L78 Accepts]: Start accepts. Automaton has 59921 states and 84377 transitions. Word has length 162 [2018-11-07 00:10:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:10:19,018 INFO L480 AbstractCegarLoop]: Abstraction has 59921 states and 84377 transitions. [2018-11-07 00:10:19,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:10:19,018 INFO L276 IsEmpty]: Start isEmpty. Operand 59921 states and 84377 transitions. [2018-11-07 00:10:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-07 00:10:19,034 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:10:19,034 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:10:19,034 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:10:19,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:10:19,035 INFO L82 PathProgramCache]: Analyzing trace with hash -666775580, now seen corresponding path program 1 times [2018-11-07 00:10:19,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:10:19,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:10:19,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:10:19,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:10:19,036 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:10:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:10:19,417 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 60 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:10:19,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:10:19,418 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:10:19,420 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-07 00:10:19,429 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2063], [2065], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2424], [2425], [2428], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 00:10:19,545 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:10:19,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:10:22,475 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:10:22,477 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 00:10:22,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:10:22,487 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:10:24,738 INFO L227 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 75.43% of their original sizes. [2018-11-07 00:10:24,738 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:10:25,369 INFO L415 sIntCurrentIteration]: We unified 209 AI predicates to 209 [2018-11-07 00:10:25,369 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:10:25,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:10:25,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-11-07 00:10:25,371 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:10:25,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:10:25,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:10:25,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:10:25,372 INFO L87 Difference]: Start difference. First operand 59921 states and 84377 transitions. Second operand 8 states. [2018-11-07 00:10:33,960 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 00:12:36,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:12:36,612 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:12:36,618 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:12:36,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:12:36 BoogieIcfgContainer [2018-11-07 00:12:36,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:12:36,620 INFO L168 Benchmark]: Toolchain (without parser) took 222764.30 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -654.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 00:12:36,621 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:12:36,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2343.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:36,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 397.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 805.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:36,624 INFO L168 Benchmark]: Boogie Preprocessor took 259.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:36,624 INFO L168 Benchmark]: RCFGBuilder took 8830.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 653.4 MB). Peak memory consumption was 653.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:36,625 INFO L168 Benchmark]: TraceAbstraction took 210926.96 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.1 GB in the end (delta: -471.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 00:12:36,630 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2343.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 397.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 805.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 259.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8830.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 653.4 MB). Peak memory consumption was 653.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210926.96 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.1 GB in the end (delta: -471.9 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: 102]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 102). Cancelled while BasicCegarLoop was constructing difference of abstraction (59921states) and FLOYD_HOARE automaton (currently 8 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (21977 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 196.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1218 SDtfs, 19616 SDslu, 1340 SDs, 0 SdLazy, 37168 SolverSat, 8099 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 266 GetRequests, 216 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59921occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9953625322046373 AbsIntWeakeningRatio, 0.1291866028708134 AbsIntAvgWeakeningVarsNumRemoved, 1041.6937799043062 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 684 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 901 NumberOfCodeBlocks, 901 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 894 ConstructedInterpolants, 0 QuantifiedInterpolants, 570046 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 215/296 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown