java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:16:01,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:16:01,733 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:16:01,746 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:16:01,747 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:16:01,748 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:16:01,749 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:16:01,751 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:16:01,752 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:16:01,753 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:16:01,754 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:16:01,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:16:01,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:16:01,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:16:01,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:16:01,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:16:01,760 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:16:01,761 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:16:01,767 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:16:01,768 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:16:01,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:16:01,773 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:16:01,778 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:16:01,778 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:16:01,778 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:16:01,779 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:16:01,783 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:16:01,783 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:16:01,784 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:16:01,787 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:16:01,788 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:16:01,788 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:16:01,788 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:16:01,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:16:01,790 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:16:01,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:16:01,790 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 21:16:01,815 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:16:01,815 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:16:01,818 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:16:01,818 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:16:01,818 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:16:01,819 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:16:01,819 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:16:01,819 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:16:01,819 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:16:01,819 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:16:01,820 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:16:01,820 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:16:01,820 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:16:01,824 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:16:01,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:16:01,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:16:01,825 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:16:01,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:16:01,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:16:01,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:16:01,825 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:16:01,826 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:16:01,826 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:16:01,826 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:16:01,826 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:16:01,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:16:01,827 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:16:01,827 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:16:01,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:16:01,827 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:16:01,827 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:16:01,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:16:01,828 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:16:01,828 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:16:01,828 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:16:01,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:16:01,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:16:01,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:16:01,908 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:16:01,908 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:16:01,909 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label51_true-unreach-call.c [2018-11-07 21:16:01,974 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61e01693/688b9de163a84f07968d3a9b79000a83/FLAG026034254 [2018-11-07 21:16:02,658 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:16:02,659 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label51_true-unreach-call.c [2018-11-07 21:16:02,684 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61e01693/688b9de163a84f07968d3a9b79000a83/FLAG026034254 [2018-11-07 21:16:02,707 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61e01693/688b9de163a84f07968d3a9b79000a83 [2018-11-07 21:16:02,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:16:02,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:16:02,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:16:02,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:16:02,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:16:02,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:16:02" (1/1) ... [2018-11-07 21:16:02,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465fd05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:02, skipping insertion in model container [2018-11-07 21:16:02,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:16:02" (1/1) ... [2018-11-07 21:16:02,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:16:02,892 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:16:03,939 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:16:03,944 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:16:04,406 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:16:04,439 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:16:04,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04 WrapperNode [2018-11-07 21:16:04,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:16:04,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:16:04,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:16:04,442 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:16:04,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:16:04,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:16:04,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:16:04,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:16:04,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (1/1) ... [2018-11-07 21:16:04,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:16:04,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:16:04,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:16:04,956 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:16:04,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (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 21:16:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:16:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:16:05,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:16:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 21:16:05,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 21:16:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:16:05,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:16:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:16:05,029 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:16:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:16:05,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:16:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:16:05,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:16:13,808 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:16:13,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:16:13 BoogieIcfgContainer [2018-11-07 21:16:13,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:16:13,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:16:13,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:16:13,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:16:13,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:16:02" (1/3) ... [2018-11-07 21:16:13,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4641ef87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:16:13, skipping insertion in model container [2018-11-07 21:16:13,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:04" (2/3) ... [2018-11-07 21:16:13,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4641ef87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:16:13, skipping insertion in model container [2018-11-07 21:16:13,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:16:13" (3/3) ... [2018-11-07 21:16:13,817 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label51_true-unreach-call.c [2018-11-07 21:16:13,827 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:16:13,836 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:16:13,851 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:16:13,896 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:16:13,897 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:16:13,897 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:16:13,897 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:16:13,897 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:16:13,897 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:16:13,897 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:16:13,898 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:16:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 21:16:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-07 21:16:13,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:13,954 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] [2018-11-07 21:16:13,957 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:13,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:13,966 INFO L82 PathProgramCache]: Analyzing trace with hash -198133833, now seen corresponding path program 1 times [2018-11-07 21:16:13,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:14,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:14,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:14,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:14,021 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:14,511 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 21:16:14,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:14,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:16:14,514 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:14,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:16:14,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:16:14,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:16:14,543 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-11-07 21:16:25,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:25,650 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-11-07 21:16:25,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:16:25,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-11-07 21:16:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:25,690 INFO L225 Difference]: With dead ends: 2974 [2018-11-07 21:16:25,690 INFO L226 Difference]: Without dead ends: 2193 [2018-11-07 21:16:25,703 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:16:25,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-11-07 21:16:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-11-07 21:16:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-11-07 21:16:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3506 transitions. [2018-11-07 21:16:25,894 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3506 transitions. Word has length 67 [2018-11-07 21:16:25,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:25,895 INFO L480 AbstractCegarLoop]: Abstraction has 2193 states and 3506 transitions. [2018-11-07 21:16:25,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:16:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3506 transitions. [2018-11-07 21:16:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-07 21:16:25,905 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:25,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:16:25,906 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:25,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:25,907 INFO L82 PathProgramCache]: Analyzing trace with hash 228041992, now seen corresponding path program 1 times [2018-11-07 21:16:25,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:25,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:25,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:25,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:25,909 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:16:26,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:26,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:16:26,227 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:26,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:16:26,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:16:26,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:16:26,230 INFO L87 Difference]: Start difference. First operand 2193 states and 3506 transitions. Second operand 5 states. [2018-11-07 21:16:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:34,780 INFO L93 Difference]: Finished difference Result 6600 states and 10738 transitions. [2018-11-07 21:16:34,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:16:34,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-11-07 21:16:34,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:34,817 INFO L225 Difference]: With dead ends: 6600 [2018-11-07 21:16:34,817 INFO L226 Difference]: Without dead ends: 4413 [2018-11-07 21:16:34,826 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:16:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-11-07 21:16:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-11-07 21:16:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-11-07 21:16:34,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6712 transitions. [2018-11-07 21:16:34,954 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6712 transitions. Word has length 137 [2018-11-07 21:16:34,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:34,955 INFO L480 AbstractCegarLoop]: Abstraction has 4378 states and 6712 transitions. [2018-11-07 21:16:34,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:16:34,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6712 transitions. [2018-11-07 21:16:34,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-07 21:16:34,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:34,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:34,961 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:34,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:34,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1314809025, now seen corresponding path program 1 times [2018-11-07 21:16:34,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:34,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:34,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:34,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:34,963 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:16:35,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:35,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:16:35,261 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:35,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:16:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:16:35,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:16:35,262 INFO L87 Difference]: Start difference. First operand 4378 states and 6712 transitions. Second operand 6 states. [2018-11-07 21:16:43,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:43,602 INFO L93 Difference]: Finished difference Result 15364 states and 24184 transitions. [2018-11-07 21:16:43,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:16:43,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-11-07 21:16:43,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:43,680 INFO L225 Difference]: With dead ends: 15364 [2018-11-07 21:16:43,681 INFO L226 Difference]: Without dead ends: 10992 [2018-11-07 21:16:43,708 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 21:16:43,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10992 states. [2018-11-07 21:16:44,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10992 to 10926. [2018-11-07 21:16:44,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10926 states. [2018-11-07 21:16:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10926 states to 10926 states and 15805 transitions. [2018-11-07 21:16:44,086 INFO L78 Accepts]: Start accepts. Automaton has 10926 states and 15805 transitions. Word has length 164 [2018-11-07 21:16:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:44,087 INFO L480 AbstractCegarLoop]: Abstraction has 10926 states and 15805 transitions. [2018-11-07 21:16:44,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:16:44,087 INFO L276 IsEmpty]: Start isEmpty. Operand 10926 states and 15805 transitions. [2018-11-07 21:16:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-07 21:16:44,093 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:44,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:44,093 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:44,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:44,097 INFO L82 PathProgramCache]: Analyzing trace with hash -446989259, now seen corresponding path program 1 times [2018-11-07 21:16:44,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:44,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:44,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:44,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:44,099 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:16:44,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:44,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:16:44,368 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:44,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:16:44,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:16:44,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:16:44,369 INFO L87 Difference]: Start difference. First operand 10926 states and 15805 transitions. Second operand 4 states. [2018-11-07 21:16:51,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:51,076 INFO L93 Difference]: Finished difference Result 26109 states and 38076 transitions. [2018-11-07 21:16:51,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:16:51,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2018-11-07 21:16:51,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:51,164 INFO L225 Difference]: With dead ends: 26109 [2018-11-07 21:16:51,165 INFO L226 Difference]: Without dead ends: 15189 [2018-11-07 21:16:51,206 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:16:51,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15189 states. [2018-11-07 21:16:51,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15189 to 15183. [2018-11-07 21:16:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15183 states. [2018-11-07 21:16:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 19641 transitions. [2018-11-07 21:16:51,750 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 19641 transitions. Word has length 174 [2018-11-07 21:16:51,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:51,751 INFO L480 AbstractCegarLoop]: Abstraction has 15183 states and 19641 transitions. [2018-11-07 21:16:51,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:16:51,751 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 19641 transitions. [2018-11-07 21:16:51,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-11-07 21:16:51,757 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:51,757 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 21:16:51,757 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:51,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:51,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1032798605, now seen corresponding path program 1 times [2018-11-07 21:16:51,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:51,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:51,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:51,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:51,760 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 120 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:16:52,008 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:16:52,008 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:16:52,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-11-07 21:16:52,011 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2059], [2061], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:16:52,061 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:16:52,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:16:52,663 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:16:52,665 INFO L272 AbstractInterpreter]: Visited 100 different actions 100 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 21:16:52,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:52,708 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:16:53,244 INFO L227 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 78.23% of their original sizes. [2018-11-07 21:16:53,244 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:16:53,527 INFO L415 sIntCurrentIteration]: We unified 238 AI predicates to 238 [2018-11-07 21:16:53,528 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:16:53,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:16:53,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 21:16:53,529 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:53,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 21:16:53,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 21:16:53,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 21:16:53,530 INFO L87 Difference]: Start difference. First operand 15183 states and 19641 transitions. Second operand 7 states. [2018-11-07 21:17:01,903 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:17:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:17:30,934 INFO L93 Difference]: Finished difference Result 31065 states and 40142 transitions. [2018-11-07 21:17:30,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:17:30,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2018-11-07 21:17:30,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:17:30,978 INFO L225 Difference]: With dead ends: 31065 [2018-11-07 21:17:30,979 INFO L226 Difference]: Without dead ends: 15888 [2018-11-07 21:17:31,006 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:17:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15888 states. [2018-11-07 21:17:31,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15888 to 15886. [2018-11-07 21:17:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15886 states. [2018-11-07 21:17:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15886 states to 15886 states and 20353 transitions. [2018-11-07 21:17:31,284 INFO L78 Accepts]: Start accepts. Automaton has 15886 states and 20353 transitions. Word has length 239 [2018-11-07 21:17:31,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:17:31,285 INFO L480 AbstractCegarLoop]: Abstraction has 15886 states and 20353 transitions. [2018-11-07 21:17:31,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 21:17:31,285 INFO L276 IsEmpty]: Start isEmpty. Operand 15886 states and 20353 transitions. [2018-11-07 21:17:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-11-07 21:17:31,296 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:17:31,297 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 21:17:31,297 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:17:31,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:17:31,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1020425839, now seen corresponding path program 1 times [2018-11-07 21:17:31,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:17:31,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:17:31,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:17:31,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:17:31,300 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:17:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:17:31,836 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:17:32,026 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:17:32,255 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:17:32,696 WARN L179 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 21:17:32,961 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-07 21:17:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 239 proven. 185 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:17:33,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:17:33,349 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:17:33,349 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 427 with the following transitions: [2018-11-07 21:17:33,350 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2059], [2061], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:17:33,360 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:17:33,360 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:17:33,802 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:17:33,802 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:17:33,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:17:33,844 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:17:34,637 INFO L227 lantSequenceWeakener]: Weakened 169 states. On average, predicates are now at 78.38% of their original sizes. [2018-11-07 21:17:34,638 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:17:37,244 INFO L415 sIntCurrentIteration]: We unified 425 AI predicates to 425 [2018-11-07 21:17:37,244 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:17:37,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:17:37,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-11-07 21:17:37,245 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:17:37,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 21:17:37,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 21:17:37,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-11-07 21:17:37,247 INFO L87 Difference]: Start difference. First operand 15886 states and 20353 transitions. Second operand 17 states. [2018-11-07 21:18:03,232 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:18:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:18:44,752 INFO L93 Difference]: Finished difference Result 33314 states and 42712 transitions. [2018-11-07 21:18:44,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-07 21:18:44,753 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 426 [2018-11-07 21:18:44,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:18:44,801 INFO L225 Difference]: With dead ends: 33314 [2018-11-07 21:18:44,801 INFO L226 Difference]: Without dead ends: 18137 [2018-11-07 21:18:44,818 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 434 GetRequests, 346 SyntacticMatches, 64 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2018-11-07 21:18:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18137 states. [2018-11-07 21:18:45,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18137 to 18132. [2018-11-07 21:18:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18132 states. [2018-11-07 21:18:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18132 states to 18132 states and 22644 transitions. [2018-11-07 21:18:45,088 INFO L78 Accepts]: Start accepts. Automaton has 18132 states and 22644 transitions. Word has length 426 [2018-11-07 21:18:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:18:45,089 INFO L480 AbstractCegarLoop]: Abstraction has 18132 states and 22644 transitions. [2018-11-07 21:18:45,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-07 21:18:45,089 INFO L276 IsEmpty]: Start isEmpty. Operand 18132 states and 22644 transitions. [2018-11-07 21:18:45,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2018-11-07 21:18:45,118 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:18:45,118 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:18:45,119 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:18:45,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:18:45,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1855818954, now seen corresponding path program 1 times [2018-11-07 21:18:45,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:18:45,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:18:45,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:18:45,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:18:45,121 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:18:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:18:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 278 proven. 76 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-07 21:18:46,382 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:18:46,382 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:18:46,383 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 768 with the following transitions: [2018-11-07 21:18:46,385 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2059], [2061], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:18:46,413 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:18:46,414 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:18:47,599 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:18:47,600 INFO L272 AbstractInterpreter]: Visited 537 different actions 1068 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:18:47,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:18:47,608 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:18:48,884 INFO L227 lantSequenceWeakener]: Weakened 458 states. On average, predicates are now at 77.9% of their original sizes. [2018-11-07 21:18:48,884 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:18:49,537 INFO L415 sIntCurrentIteration]: We unified 766 AI predicates to 766 [2018-11-07 21:18:49,538 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:18:49,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:18:49,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [6] total 35 [2018-11-07 21:18:49,538 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:18:49,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-07 21:18:49,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-07 21:18:49,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2018-11-07 21:18:49,540 INFO L87 Difference]: Start difference. First operand 18132 states and 22644 transitions. Second operand 31 states. [2018-11-07 21:19:34,522 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 21:19:38,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-07 21:19:38,453 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:19:38,460 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:19:38,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:19:38 BoogieIcfgContainer [2018-11-07 21:19:38,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:19:38,462 INFO L168 Benchmark]: Toolchain (without parser) took 215741.28 ms. Allocated memory was 1.5 GB in the beginning and 5.3 GB in the end (delta: 3.8 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-07 21:19:38,463 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 21:19:38,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1717.31 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:38,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 296.26 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -918.2 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:38,466 INFO L168 Benchmark]: Boogie Preprocessor took 217.15 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:38,467 INFO L168 Benchmark]: RCFGBuilder took 8853.41 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 503.3 MB). Peak memory consumption was 503.3 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:38,468 INFO L168 Benchmark]: TraceAbstraction took 204650.90 ms. Allocated memory was 2.2 GB in the beginning and 5.3 GB in the end (delta: 3.1 GB). Free memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 21:19:38,478 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1717.31 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 296.26 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -918.2 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 217.15 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8853.41 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 503.3 MB). Peak memory consumption was 503.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204650.90 ms. Allocated memory was 2.2 GB in the beginning and 5.3 GB in the end (delta: 3.1 GB). Free memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (18132states) and FLOYD_HOARE automaton (currently 33 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (7411 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 204.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 189.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3745 SDtfs, 20045 SDslu, 1802 SDs, 0 SdLazy, 45996 SolverSat, 5478 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1497 GetRequests, 1327 SyntacticMatches, 66 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1344 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18132occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9979525970930725 AbsIntWeakeningRatio, 0.06857942617214835 AbsIntAvgWeakeningVarsNumRemoved, 16.618614415675296 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 114 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1974 NumberOfCodeBlocks, 1974 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1967 ConstructedInterpolants, 0 QuantifiedInterpolants, 2910324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 902/1235 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown