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_label30_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:41:14,660 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:41:14,665 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:41:14,681 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:41:14,681 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:41:14,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:41:14,686 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:41:14,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:41:14,692 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:41:14,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:41:14,700 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:41:14,700 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:41:14,701 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:41:14,702 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:41:14,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:41:14,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:41:14,704 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:41:14,706 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:41:14,708 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:41:14,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:41:14,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:41:14,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:41:14,714 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:41:14,714 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:41:14,714 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:41:14,715 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:41:14,716 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:41:14,717 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:41:14,717 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:41:14,718 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:41:14,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:41:14,719 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:41:14,720 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:41:14,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:41:14,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:41:14,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:41:14,722 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 19:41:14,745 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:41:14,745 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:41:14,748 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:41:14,748 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:41:14,748 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:41:14,749 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:41:14,749 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:41:14,749 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:41:14,749 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:41:14,749 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:41:14,750 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:41:14,750 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:41:14,750 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:41:14,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:41:14,751 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:41:14,751 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:41:14,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:41:14,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:41:14,752 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:41:14,752 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:41:14,752 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:41:14,753 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:41:14,753 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:41:14,753 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:41:14,753 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:41:14,753 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:41:14,753 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:41:14,754 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:41:14,754 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:41:14,754 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:41:14,754 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:41:14,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:41:14,755 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:41:14,755 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:41:14,755 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:41:14,828 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:41:14,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:41:14,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:41:14,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:41:14,858 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:41:14,859 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label30_true-unreach-call.c [2018-11-12 19:41:14,915 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb23f253b/23ea0819365e44bab2f0d77bd31463a3/FLAGeb571ef11 [2018-11-12 19:41:15,590 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:41:15,591 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label30_true-unreach-call.c [2018-11-12 19:41:15,614 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb23f253b/23ea0819365e44bab2f0d77bd31463a3/FLAGeb571ef11 [2018-11-12 19:41:15,631 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb23f253b/23ea0819365e44bab2f0d77bd31463a3 [2018-11-12 19:41:15,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:41:15,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:41:15,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:41:15,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:41:15,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:41:15,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:41:15" (1/1) ... [2018-11-12 19:41:15,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c8ae49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:15, skipping insertion in model container [2018-11-12 19:41:15,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:41:15" (1/1) ... [2018-11-12 19:41:15,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:41:15,795 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:41:16,860 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:41:16,867 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:41:17,344 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:41:17,377 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:41:17,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17 WrapperNode [2018-11-12 19:41:17,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:41:17,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:41:17,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:41:17,380 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:41:17,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:41:17,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:41:17,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:41:17,710 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:41:17,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... [2018-11-12 19:41:17,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:41:17,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:41:17,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:41:17,921 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:41:17,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:41:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:41:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:41:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:41:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 19:41:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 19:41:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:41:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:41:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:41:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:41:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:41:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:41:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:41:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:41:25,736 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:41:25,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:41:25 BoogieIcfgContainer [2018-11-12 19:41:25,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:41:25,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:41:25,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:41:25,742 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:41:25,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:41:15" (1/3) ... [2018-11-12 19:41:25,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fb125a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:41:25, skipping insertion in model container [2018-11-12 19:41:25,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:41:17" (2/3) ... [2018-11-12 19:41:25,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fb125a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:41:25, skipping insertion in model container [2018-11-12 19:41:25,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:41:25" (3/3) ... [2018-11-12 19:41:25,746 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label30_true-unreach-call.c [2018-11-12 19:41:25,757 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:41:25,766 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:41:25,781 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:41:25,826 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:41:25,827 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:41:25,827 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:41:25,827 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:41:25,827 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:41:25,827 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:41:25,828 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:41:25,828 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:41:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-12 19:41:25,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-12 19:41:25,884 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:25,885 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] [2018-11-12 19:41:25,888 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:25,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:25,893 INFO L82 PathProgramCache]: Analyzing trace with hash 2116267860, now seen corresponding path program 1 times [2018-11-12 19:41:25,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:25,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:25,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:25,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:25,944 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:26,406 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-12 19:41:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:41:26,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:41:26,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:41:26,430 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:26,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:41:26,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:41:26,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:41:26,455 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-11-12 19:41:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:37,206 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-11-12 19:41:37,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:41:37,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-11-12 19:41:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:37,251 INFO L225 Difference]: With dead ends: 2974 [2018-11-12 19:41:37,251 INFO L226 Difference]: Without dead ends: 2193 [2018-11-12 19:41:37,264 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 [2018-11-12 19:41:37,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-11-12 19:41:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-11-12 19:41:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-11-12 19:41:37,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3506 transitions. [2018-11-12 19:41:37,572 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3506 transitions. Word has length 50 [2018-11-12 19:41:37,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:37,573 INFO L480 AbstractCegarLoop]: Abstraction has 2193 states and 3506 transitions. [2018-11-12 19:41:37,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:41:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3506 transitions. [2018-11-12 19:41:37,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-11-12 19:41:37,585 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:37,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:41:37,586 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:37,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:37,587 INFO L82 PathProgramCache]: Analyzing trace with hash -940653118, now seen corresponding path program 1 times [2018-11-12 19:41:37,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:37,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:37,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:37,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:37,589 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:41:37,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:41:37,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:41:37,887 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:37,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:41:37,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:41:37,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:41:37,890 INFO L87 Difference]: Start difference. First operand 2193 states and 3506 transitions. Second operand 5 states. [2018-11-12 19:41:48,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:48,625 INFO L93 Difference]: Finished difference Result 6600 states and 10738 transitions. [2018-11-12 19:41:48,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:41:48,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2018-11-12 19:41:48,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:48,662 INFO L225 Difference]: With dead ends: 6600 [2018-11-12 19:41:48,662 INFO L226 Difference]: Without dead ends: 4413 [2018-11-12 19:41:48,671 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 [2018-11-12 19:41:48,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-11-12 19:41:48,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-11-12 19:41:48,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-11-12 19:41:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6712 transitions. [2018-11-12 19:41:48,834 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6712 transitions. Word has length 120 [2018-11-12 19:41:48,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:48,835 INFO L480 AbstractCegarLoop]: Abstraction has 4378 states and 6712 transitions. [2018-11-12 19:41:48,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:41:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6712 transitions. [2018-11-12 19:41:48,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-12 19:41:48,841 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:48,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:41:48,841 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:48,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:48,842 INFO L82 PathProgramCache]: Analyzing trace with hash 599162315, now seen corresponding path program 1 times [2018-11-12 19:41:48,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:48,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:48,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:48,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:48,844 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:41:49,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:41:49,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:41:49,135 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:49,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:41:49,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:41:49,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:41:49,138 INFO L87 Difference]: Start difference. First operand 4378 states and 6712 transitions. Second operand 6 states. [2018-11-12 19:41:54,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:54,113 INFO L93 Difference]: Finished difference Result 11002 states and 16943 transitions. [2018-11-12 19:41:54,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:41:54,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-11-12 19:41:54,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:54,154 INFO L225 Difference]: With dead ends: 11002 [2018-11-12 19:41:54,154 INFO L226 Difference]: Without dead ends: 6630 [2018-11-12 19:41:54,171 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 [2018-11-12 19:41:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2018-11-12 19:41:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 6590. [2018-11-12 19:41:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-11-12 19:41:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 8773 transitions. [2018-11-12 19:41:54,355 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 8773 transitions. Word has length 147 [2018-11-12 19:41:54,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:54,356 INFO L480 AbstractCegarLoop]: Abstraction has 6590 states and 8773 transitions. [2018-11-12 19:41:54,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:41:54,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 8773 transitions. [2018-11-12 19:41:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-12 19:41:54,358 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:54,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:41:54,359 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:54,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:54,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1887894889, now seen corresponding path program 1 times [2018-11-12 19:41:54,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:54,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:54,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:54,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:54,361 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:41:54,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:41:54,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:41:54,597 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:54,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:41:54,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:41:54,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:41:54,598 INFO L87 Difference]: Start difference. First operand 6590 states and 8773 transitions. Second operand 4 states. [2018-11-12 19:42:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:42:00,426 INFO L93 Difference]: Finished difference Result 13174 states and 17554 transitions. [2018-11-12 19:42:00,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:42:00,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2018-11-12 19:42:00,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:42:00,459 INFO L225 Difference]: With dead ends: 13174 [2018-11-12 19:42:00,459 INFO L226 Difference]: Without dead ends: 6590 [2018-11-12 19:42:00,480 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 [2018-11-12 19:42:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2018-11-12 19:42:00,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6590. [2018-11-12 19:42:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-11-12 19:42:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 8069 transitions. [2018-11-12 19:42:00,605 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 8069 transitions. Word has length 157 [2018-11-12 19:42:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:42:00,606 INFO L480 AbstractCegarLoop]: Abstraction has 6590 states and 8069 transitions. [2018-11-12 19:42:00,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:42:00,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 8069 transitions. [2018-11-12 19:42:00,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-11-12 19:42:00,609 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:42:00,609 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, 2, 2, 2, 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] [2018-11-12 19:42:00,609 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:42:00,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:00,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1024574149, now seen corresponding path program 1 times [2018-11-12 19:42:00,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:42:00,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:00,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:42:00,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:00,611 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:42:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:42:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-12 19:42:00,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:42:00,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:42:00,890 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:42:00,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:42:00,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:42:00,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:42:00,891 INFO L87 Difference]: Start difference. First operand 6590 states and 8069 transitions. Second operand 4 states. [2018-11-12 19:42:07,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:42:07,597 INFO L93 Difference]: Finished difference Result 26016 states and 32711 transitions. [2018-11-12 19:42:07,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:42:07,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 227 [2018-11-12 19:42:07,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:42:07,683 INFO L225 Difference]: With dead ends: 26016 [2018-11-12 19:42:07,684 INFO L226 Difference]: Without dead ends: 19432 [2018-11-12 19:42:07,706 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 [2018-11-12 19:42:07,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19432 states. [2018-11-12 19:42:08,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19432 to 19432. [2018-11-12 19:42:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19432 states. [2018-11-12 19:42:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19432 states to 19432 states and 23497 transitions. [2018-11-12 19:42:08,065 INFO L78 Accepts]: Start accepts. Automaton has 19432 states and 23497 transitions. Word has length 227 [2018-11-12 19:42:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:42:08,066 INFO L480 AbstractCegarLoop]: Abstraction has 19432 states and 23497 transitions. [2018-11-12 19:42:08,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:42:08,066 INFO L276 IsEmpty]: Start isEmpty. Operand 19432 states and 23497 transitions. [2018-11-12 19:42:08,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2018-11-12 19:42:08,109 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:42:08,109 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:42:08,110 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:42:08,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:08,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1794025893, now seen corresponding path program 1 times [2018-11-12 19:42:08,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:42:08,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:08,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:42:08,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:08,112 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:42:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:42:08,674 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:42:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 87 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:42:09,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:42:09,738 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:42:09,740 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 579 with the following transitions: [2018-11-12 19:42:09,743 INFO L202 CegarAbsIntRunner]: [0], [1], [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], [1183], [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], [1923], [1925], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [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], [2328], [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], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:42:09,839 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:42:09,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:42:11,174 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:42:11,176 INFO L272 AbstractInterpreter]: Visited 407 different actions 407 times. Never merged. Never widened. Performed 4330 root evaluator evaluations with a maximum evaluation depth of 6. Performed 4330 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:42:11,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:11,212 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:42:12,439 INFO L227 lantSequenceWeakener]: Weakened 566 states. On average, predicates are now at 77.52% of their original sizes. [2018-11-12 19:42:12,439 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:42:12,956 INFO L415 sIntCurrentIteration]: We unified 577 AI predicates to 577 [2018-11-12 19:42:12,956 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:42:12,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:42:12,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2018-11-12 19:42:12,957 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:42:12,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:42:12,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:42:12,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:42:12,959 INFO L87 Difference]: Start difference. First operand 19432 states and 23497 transitions. Second operand 10 states. [2018-11-12 19:42:25,691 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:42:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:42:56,035 INFO L93 Difference]: Finished difference Result 39563 states and 47772 transitions. [2018-11-12 19:42:56,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:42:56,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 578 [2018-11-12 19:42:56,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:42:56,094 INFO L225 Difference]: With dead ends: 39563 [2018-11-12 19:42:56,094 INFO L226 Difference]: Without dead ends: 20137 [2018-11-12 19:42:56,130 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 580 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-12 19:42:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20137 states. [2018-11-12 19:42:57,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20137 to 20135. [2018-11-12 19:42:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20135 states. [2018-11-12 19:42:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20135 states to 20135 states and 24212 transitions. [2018-11-12 19:42:57,052 INFO L78 Accepts]: Start accepts. Automaton has 20135 states and 24212 transitions. Word has length 578 [2018-11-12 19:42:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:42:57,053 INFO L480 AbstractCegarLoop]: Abstraction has 20135 states and 24212 transitions. [2018-11-12 19:42:57,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:42:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 20135 states and 24212 transitions. [2018-11-12 19:42:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2018-11-12 19:42:57,109 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:42:57,110 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:42:57,110 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:42:57,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:57,111 INFO L82 PathProgramCache]: Analyzing trace with hash -324122114, now seen corresponding path program 1 times [2018-11-12 19:42:57,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:42:57,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:57,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:42:57,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:57,113 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:42:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:42:57,718 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:42:57,903 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:42:58,132 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:42:58,514 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-12 19:42:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 188 proven. 369 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:42:59,213 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:42:59,213 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:42:59,214 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 766 with the following transitions: [2018-11-12 19:42:59,215 INFO L202 CegarAbsIntRunner]: [0], [1], [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], [1183], [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], [1923], [1925], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [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], [2328], [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], [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], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:42:59,227 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:42:59,227 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:43:00,731 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:43:00,732 INFO L272 AbstractInterpreter]: Visited 411 different actions 815 times. Merged at 4 different actions 4 times. Never widened. Performed 9655 root evaluator evaluations with a maximum evaluation depth of 6. Performed 9655 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:43:00,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:00,771 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:43:02,870 INFO L227 lantSequenceWeakener]: Weakened 505 states. On average, predicates are now at 77.49% of their original sizes. [2018-11-12 19:43:02,870 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:43:04,867 INFO L415 sIntCurrentIteration]: We unified 764 AI predicates to 764 [2018-11-12 19:43:04,868 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:43:04,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:43:04,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [11] total 27 [2018-11-12 19:43:04,868 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:43:04,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:43:04,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:43:04,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:43:04,870 INFO L87 Difference]: Start difference. First operand 20135 states and 24212 transitions. Second operand 18 states. [2018-11-12 19:43:29,091 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:43:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:43:48,876 INFO L93 Difference]: Finished difference Result 41552 states and 49768 transitions. [2018-11-12 19:43:48,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-12 19:43:48,876 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 765 [2018-11-12 19:43:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:43:48,962 INFO L225 Difference]: With dead ends: 41552 [2018-11-12 19:43:48,963 INFO L226 Difference]: Without dead ends: 20651 [2018-11-12 19:43:48,997 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 775 GetRequests, 694 SyntacticMatches, 54 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2018-11-12 19:43:49,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20651 states. [2018-11-12 19:43:49,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20651 to 20135. [2018-11-12 19:43:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20135 states. [2018-11-12 19:43:49,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20135 states to 20135 states and 24204 transitions. [2018-11-12 19:43:49,431 INFO L78 Accepts]: Start accepts. Automaton has 20135 states and 24204 transitions. Word has length 765 [2018-11-12 19:43:49,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:43:49,431 INFO L480 AbstractCegarLoop]: Abstraction has 20135 states and 24204 transitions. [2018-11-12 19:43:49,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:43:49,432 INFO L276 IsEmpty]: Start isEmpty. Operand 20135 states and 24204 transitions. [2018-11-12 19:43:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1107 [2018-11-12 19:43:49,473 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:43:49,474 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:43:49,475 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:43:49,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:49,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1151009341, now seen corresponding path program 1 times [2018-11-12 19:43:49,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:43:49,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:49,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:43:49,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:49,477 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:43:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:43:50,401 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:43:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 252 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:43:53,369 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:43:53,369 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:43:53,369 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1107 with the following transitions: [2018-11-12 19:43:53,370 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], [1183], [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], [1923], [1925], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [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], [2328], [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] [2018-11-12 19:43:53,379 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:43:53,379 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:43:54,759 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:43:54,760 INFO L272 AbstractInterpreter]: Visited 537 different actions 1068 times. Merged at 5 different actions 5 times. Never widened. Performed 14941 root evaluator evaluations with a maximum evaluation depth of 6. Performed 14941 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:43:54,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:54,767 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:43:56,712 INFO L227 lantSequenceWeakener]: Weakened 365 states. On average, predicates are now at 77.83% of their original sizes. [2018-11-12 19:43:56,712 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:43:57,743 INFO L415 sIntCurrentIteration]: We unified 1105 AI predicates to 1105 [2018-11-12 19:43:57,744 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:43:57,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:43:57,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [35] imperfect sequences [11] total 44 [2018-11-12 19:43:57,745 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:43:57,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-11-12 19:43:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-11-12 19:43:57,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2018-11-12 19:43:57,747 INFO L87 Difference]: Start difference. First operand 20135 states and 24204 transitions. Second operand 35 states. Received shutdown request... [2018-11-12 19:44:48,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-12 19:44:48,296 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:44:48,301 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:44:48,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:44:48 BoogieIcfgContainer [2018-11-12 19:44:48,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:44:48,302 INFO L168 Benchmark]: Toolchain (without parser) took 212658.59 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-12 19:44:48,304 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:44:48,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1732.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:48,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 329.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -992.6 MB). Peak memory consumption was 42.1 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:48,309 INFO L168 Benchmark]: Boogie Preprocessor took 211.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:48,310 INFO L168 Benchmark]: RCFGBuilder took 7816.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 500.7 MB). Peak memory consumption was 500.7 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:48,311 INFO L168 Benchmark]: TraceAbstraction took 202563.09 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.8 GB in the beginning and 3.6 GB in the end (delta: -1.8 GB). Peak memory consumption was 732.5 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:48,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1732.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 329.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -992.6 MB). Peak memory consumption was 42.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 211.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7816.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 500.7 MB). Peak memory consumption was 500.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202563.09 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.8 GB in the beginning and 3.6 GB in the end (delta: -1.8 GB). Peak memory consumption was 732.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 138). Cancelled while BasicCegarLoop was constructing difference of abstraction (20135states) and FLOYD_HOARE automaton (currently 25 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (1323 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 202.4s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 177.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4194 SDtfs, 23542 SDslu, 1242 SDs, 0 SdLazy, 42501 SolverSat, 5908 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.3s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2513 GetRequests, 2349 SyntacticMatches, 56 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1115 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20135occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9986541635098293 AbsIntWeakeningRatio, 0.044971381847914965 AbsIntAvgWeakeningVarsNumRemoved, 16.69255928045789 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 593 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 3150 NumberOfCodeBlocks, 3150 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3142 ConstructedInterpolants, 0 QuantifiedInterpolants, 8865534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 817/1836 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown