java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 02:38:14,663 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 02:38:14,665 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 02:38:14,678 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 02:38:14,678 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 02:38:14,679 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 02:38:14,680 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 02:38:14,682 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 02:38:14,684 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 02:38:14,685 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 02:38:14,686 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 02:38:14,686 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 02:38:14,687 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 02:38:14,688 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 02:38:14,689 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 02:38:14,690 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 02:38:14,691 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 02:38:14,693 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 02:38:14,695 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 02:38:14,696 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 02:38:14,698 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 02:38:14,699 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 02:38:14,701 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 02:38:14,702 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 02:38:14,702 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 02:38:14,703 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 02:38:14,704 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 02:38:14,705 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 02:38:14,706 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 02:38:14,707 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 02:38:14,707 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 02:38:14,708 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 02:38:14,708 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 02:38:14,708 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 02:38:14,709 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 02:38:14,710 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 02:38:14,711 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 02:38:14,726 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 02:38:14,727 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 02:38:14,728 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 02:38:14,728 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 02:38:14,728 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 02:38:14,728 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 02:38:14,728 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 02:38:14,729 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 02:38:14,729 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 02:38:14,729 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 02:38:14,729 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 02:38:14,729 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 02:38:14,730 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 02:38:14,730 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 02:38:14,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 02:38:14,731 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 02:38:14,731 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 02:38:14,731 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 02:38:14,731 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 02:38:14,731 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 02:38:14,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 02:38:14,732 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 02:38:14,732 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 02:38:14,732 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 02:38:14,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:38:14,733 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 02:38:14,733 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 02:38:14,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 02:38:14,733 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 02:38:14,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 02:38:14,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 02:38:14,734 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 02:38:14,734 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 02:38:14,734 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 02:38:14,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 02:38:14,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 02:38:14,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 02:38:14,809 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 02:38:14,810 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 02:38:14,810 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label48_true-unreach-call.c [2018-10-27 02:38:14,871 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c524990dd/ef68b767084146c8a34372945ba1de6d/FLAGe9745580b [2018-10-27 02:38:15,544 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 02:38:15,547 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label48_true-unreach-call.c [2018-10-27 02:38:15,568 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c524990dd/ef68b767084146c8a34372945ba1de6d/FLAGe9745580b [2018-10-27 02:38:15,587 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c524990dd/ef68b767084146c8a34372945ba1de6d [2018-10-27 02:38:15,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 02:38:15,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 02:38:15,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 02:38:15,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 02:38:15,612 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 02:38:15,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:38:15" (1/1) ... [2018-10-27 02:38:15,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46dcfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:15, skipping insertion in model container [2018-10-27 02:38:15,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:38:15" (1/1) ... [2018-10-27 02:38:15,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 02:38:15,705 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 02:38:16,367 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:38:16,372 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 02:38:16,571 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:38:16,592 INFO L193 MainTranslator]: Completed translation [2018-10-27 02:38:16,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16 WrapperNode [2018-10-27 02:38:16,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 02:38:16,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 02:38:16,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 02:38:16,594 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 02:38:16,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 02:38:16,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 02:38:16,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 02:38:16,889 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 02:38:16,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:17,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 02:38:17,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 02:38:17,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 02:38:17,006 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 02:38:17,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:38:17,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 02:38:17,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 02:38:17,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 02:38:17,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 02:38:17,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 02:38:17,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 02:38:17,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 02:38:17,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 02:38:21,929 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 02:38:21,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:38:21 BoogieIcfgContainer [2018-10-27 02:38:21,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 02:38:21,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 02:38:21,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 02:38:21,934 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 02:38:21,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:38:15" (1/3) ... [2018-10-27 02:38:21,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431096c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:38:21, skipping insertion in model container [2018-10-27 02:38:21,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16" (2/3) ... [2018-10-27 02:38:21,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431096c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:38:21, skipping insertion in model container [2018-10-27 02:38:21,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:38:21" (3/3) ... [2018-10-27 02:38:21,938 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label48_true-unreach-call.c [2018-10-27 02:38:21,949 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 02:38:21,958 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 02:38:21,976 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 02:38:22,017 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 02:38:22,017 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 02:38:22,017 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 02:38:22,018 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 02:38:22,018 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 02:38:22,018 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 02:38:22,018 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 02:38:22,018 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 02:38:22,048 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-27 02:38:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-27 02:38:22,058 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:22,060 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] [2018-10-27 02:38:22,062 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:22,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:22,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1192581977, now seen corresponding path program 1 times [2018-10-27 02:38:22,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:22,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:22,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:22,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:22,131 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:22,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:38:22,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 02:38:22,668 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:22,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 02:38:22,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 02:38:22,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:38:22,698 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-27 02:38:26,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:38:26,442 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-10-27 02:38:26,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 02:38:26,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-10-27 02:38:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:38:26,467 INFO L225 Difference]: With dead ends: 979 [2018-10-27 02:38:26,467 INFO L226 Difference]: Without dead ends: 680 [2018-10-27 02:38:26,478 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:38:26,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-10-27 02:38:26,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-10-27 02:38:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-10-27 02:38:26,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-10-27 02:38:26,591 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 57 [2018-10-27 02:38:26,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:38:26,592 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-10-27 02:38:26,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 02:38:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-10-27 02:38:26,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-27 02:38:26,600 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:26,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:38:26,601 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:26,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:26,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1879663307, now seen corresponding path program 1 times [2018-10-27 02:38:26,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:26,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:26,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:26,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:26,603 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:26,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:38:26,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:38:26,977 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:26,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:38:26,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:38:26,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:38:26,980 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-10-27 02:38:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:38:31,061 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-10-27 02:38:31,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:38:31,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-10-27 02:38:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:38:31,070 INFO L225 Difference]: With dead ends: 1555 [2018-10-27 02:38:31,071 INFO L226 Difference]: Without dead ends: 1077 [2018-10-27 02:38:31,075 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 02:38:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-10-27 02:38:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-10-27 02:38:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-10-27 02:38:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-10-27 02:38:31,126 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 130 [2018-10-27 02:38:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:38:31,127 INFO L481 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-10-27 02:38:31,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:38:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-10-27 02:38:31,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-27 02:38:31,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:31,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:38:31,133 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:31,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:31,133 INFO L82 PathProgramCache]: Analyzing trace with hash -399877285, now seen corresponding path program 1 times [2018-10-27 02:38:31,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:31,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:31,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:31,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:31,135 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:31,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:38:31,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:38:31,749 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:31,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:38:31,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:38:31,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:38:31,751 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 6 states. [2018-10-27 02:38:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:38:37,893 INFO L93 Difference]: Finished difference Result 3493 states and 5404 transitions. [2018-10-27 02:38:37,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:38:37,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-27 02:38:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:38:37,918 INFO L225 Difference]: With dead ends: 3493 [2018-10-27 02:38:37,918 INFO L226 Difference]: Without dead ends: 2436 [2018-10-27 02:38:37,926 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-27 02:38:37,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2018-10-27 02:38:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2393. [2018-10-27 02:38:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2393 states. [2018-10-27 02:38:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3322 transitions. [2018-10-27 02:38:38,003 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3322 transitions. Word has length 138 [2018-10-27 02:38:38,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:38:38,004 INFO L481 AbstractCegarLoop]: Abstraction has 2393 states and 3322 transitions. [2018-10-27 02:38:38,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:38:38,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3322 transitions. [2018-10-27 02:38:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-27 02:38:38,011 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:38,012 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, 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] [2018-10-27 02:38:38,012 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:38,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:38,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1244588704, now seen corresponding path program 1 times [2018-10-27 02:38:38,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:38,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:38,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:38,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:38,015 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 100 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 02:38:38,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:38:38,504 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:38:38,505 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-27 02:38:38,508 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [538], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 02:38:38,594 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:38:38,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:38:40,692 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:38:42,240 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:38:42,242 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-27 02:38:42,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:42,287 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:38:45,508 INFO L227 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 73.8% of their original sizes. [2018-10-27 02:38:45,508 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:38:46,046 INFO L415 sIntCurrentIteration]: We unified 211 AI predicates to 211 [2018-10-27 02:38:46,046 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:38:46,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:38:46,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-27 02:38:46,047 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:46,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 02:38:46,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 02:38:46,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 02:38:46,049 INFO L87 Difference]: Start difference. First operand 2393 states and 3322 transitions. Second operand 7 states. [2018-10-27 02:39:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:39:08,793 INFO L93 Difference]: Finished difference Result 4972 states and 6853 transitions. [2018-10-27 02:39:08,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:39:08,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2018-10-27 02:39:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:39:08,807 INFO L225 Difference]: With dead ends: 4972 [2018-10-27 02:39:08,807 INFO L226 Difference]: Without dead ends: 2585 [2018-10-27 02:39:08,814 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 02:39:08,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2018-10-27 02:39:08,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2583. [2018-10-27 02:39:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2583 states. [2018-10-27 02:39:08,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3521 transitions. [2018-10-27 02:39:08,891 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3521 transitions. Word has length 212 [2018-10-27 02:39:08,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:39:08,892 INFO L481 AbstractCegarLoop]: Abstraction has 2583 states and 3521 transitions. [2018-10-27 02:39:08,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 02:39:08,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3521 transitions. [2018-10-27 02:39:08,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-10-27 02:39:08,901 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:39:08,901 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:39:08,902 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:39:08,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:39:08,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1358707587, now seen corresponding path program 1 times [2018-10-27 02:39:08,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:39:08,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:39:08,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:39:08,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:39:08,904 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:39:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:39:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-27 02:39:09,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:39:09,303 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:39:09,303 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 256 with the following transitions: [2018-10-27 02:39:09,304 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 02:39:09,311 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:39:09,311 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:39:10,742 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:39:51,887 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 02:39:51,887 INFO L272 AbstractInterpreter]: Visited 126 different actions 858 times. Merged at 7 different actions 44 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 2 different actions. Largest state had 28 variables. [2018-10-27 02:39:51,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:39:51,896 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 02:39:51,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:39:51,896 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 02:39:51,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:39:51,906 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 02:39:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:39:52,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 02:39:52,563 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-27 02:39:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:39:52,633 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 02:39:52,918 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-27 02:39:53,040 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-27 02:39:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:39:53,768 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 02:39:53,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-10-27 02:39:53,769 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 02:39:53,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 02:39:53,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 02:39:53,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-10-27 02:39:53,771 INFO L87 Difference]: Start difference. First operand 2583 states and 3521 transitions. Second operand 10 states. [2018-10-27 02:39:54,121 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-27 02:40:12,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:40:12,222 INFO L93 Difference]: Finished difference Result 15052 states and 23399 transitions. [2018-10-27 02:40:12,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-10-27 02:40:12,229 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 255 [2018-10-27 02:40:12,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:40:12,305 INFO L225 Difference]: With dead ends: 15052 [2018-10-27 02:40:12,305 INFO L226 Difference]: Without dead ends: 12665 [2018-10-27 02:40:12,347 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 533 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1687 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=880, Invalid=3950, Unknown=0, NotChecked=0, Total=4830 [2018-10-27 02:40:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12665 states. [2018-10-27 02:40:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12665 to 12371. [2018-10-27 02:40:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12371 states. [2018-10-27 02:40:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12371 states to 12371 states and 16369 transitions. [2018-10-27 02:40:12,675 INFO L78 Accepts]: Start accepts. Automaton has 12371 states and 16369 transitions. Word has length 255 [2018-10-27 02:40:12,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:40:12,676 INFO L481 AbstractCegarLoop]: Abstraction has 12371 states and 16369 transitions. [2018-10-27 02:40:12,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 02:40:12,676 INFO L276 IsEmpty]: Start isEmpty. Operand 12371 states and 16369 transitions. [2018-10-27 02:40:12,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-27 02:40:12,687 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:40:12,688 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:40:12,688 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:40:12,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:40:12,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2050879004, now seen corresponding path program 1 times [2018-10-27 02:40:12,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:40:12,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:40:12,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:40:12,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:40:12,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:40:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:40:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-27 02:40:13,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:40:13,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 02:40:13,165 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:40:13,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 02:40:13,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 02:40:13,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:40:13,167 INFO L87 Difference]: Start difference. First operand 12371 states and 16369 transitions. Second operand 4 states. [2018-10-27 02:40:16,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:40:16,779 INFO L93 Difference]: Finished difference Result 33119 states and 46077 transitions. [2018-10-27 02:40:16,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 02:40:16,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 276 [2018-10-27 02:40:16,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:40:16,880 INFO L225 Difference]: With dead ends: 33119 [2018-10-27 02:40:16,880 INFO L226 Difference]: Without dead ends: 21135 [2018-10-27 02:40:16,934 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:40:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21135 states. [2018-10-27 02:40:17,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21135 to 19815. [2018-10-27 02:40:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19815 states. [2018-10-27 02:40:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19815 states to 19815 states and 25803 transitions. [2018-10-27 02:40:17,388 INFO L78 Accepts]: Start accepts. Automaton has 19815 states and 25803 transitions. Word has length 276 [2018-10-27 02:40:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:40:17,388 INFO L481 AbstractCegarLoop]: Abstraction has 19815 states and 25803 transitions. [2018-10-27 02:40:17,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 02:40:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 19815 states and 25803 transitions. [2018-10-27 02:40:17,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-10-27 02:40:17,426 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:40:17,426 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:40:17,427 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:40:17,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:40:17,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1398455572, now seen corresponding path program 1 times [2018-10-27 02:40:17,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:40:17,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:40:17,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:40:17,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:40:17,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:40:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:40:18,071 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-27 02:40:18,610 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-27 02:40:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:40:19,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:40:19,215 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:40:19,215 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 339 with the following transitions: [2018-10-27 02:40:19,216 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [873], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 02:40:19,227 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:40:19,228 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:40:22,762 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:40:42,191 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:40:42,191 INFO L272 AbstractInterpreter]: Visited 159 different actions 465 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-27 02:40:42,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:40:42,199 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:40:45,524 INFO L227 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 77.56% of their original sizes. [2018-10-27 02:40:45,524 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:41:58,179 INFO L415 sIntCurrentIteration]: We unified 337 AI predicates to 337 [2018-10-27 02:41:58,179 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:41:58,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:41:58,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [15] total 31 [2018-10-27 02:41:58,179 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:41:58,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-27 02:41:58,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-27 02:41:58,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-10-27 02:41:58,181 INFO L87 Difference]: Start difference. First operand 19815 states and 25803 transitions. Second operand 18 states. Received shutdown request... [2018-10-27 02:42:08,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 02:42:08,715 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 02:42:08,720 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 02:42:08,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:42:08 BoogieIcfgContainer [2018-10-27 02:42:08,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 02:42:08,721 INFO L168 Benchmark]: Toolchain (without parser) took 233119.04 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 726.9 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:08,722 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-27 02:42:08,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 987.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:08,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 295.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:08,724 INFO L168 Benchmark]: Boogie Preprocessor took 116.27 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 02:42:08,724 INFO L168 Benchmark]: RCFGBuilder took 4924.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 199.1 MB). Peak memory consumption was 199.1 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:08,725 INFO L168 Benchmark]: TraceAbstraction took 226789.15 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 569.2 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:08,730 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 987.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 295.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.27 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4924.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 199.1 MB). Peak memory consumption was 199.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226789.15 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 569.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 156). Cancelled while BasicCegarLoop was constructing difference of abstraction (19815states) and FLOYD_HOARE automaton (currently 9 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (19 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 226.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 69.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1578 SDtfs, 8150 SDslu, 1757 SDs, 0 SdLazy, 17222 SolverSat, 3266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1186 GetRequests, 988 SyntacticMatches, 87 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2024 ImplicationChecksByTransitivity, 77.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19815occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 69.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9962538137720621 AbsIntWeakeningRatio, 0.10401459854014598 AbsIntAvgWeakeningVarsNumRemoved, 1192.662408759124 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1869 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1661 NumberOfCodeBlocks, 1661 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1907 ConstructedInterpolants, 0 QuantifiedInterpolants, 2514425 SizeOfPredicates, 0 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1071/1249 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown